diff --git a/BTCPayServer/Controllers/StoresController.BTCLike.cs b/BTCPayServer/Controllers/StoresController.BTCLike.cs
index 372de61e0..99faddd50 100644
--- a/BTCPayServer/Controllers/StoresController.BTCLike.cs
+++ b/BTCPayServer/Controllers/StoresController.BTCLike.cs
@@ -102,7 +102,8 @@ namespace BTCPayServer.Controllers
 
             if (vm.WalletFile != null)
             {
-                if (!DerivationSchemeSettings.TryParseFromWalletFile(await ReadAllText(vm.WalletFile), network, out strategy))
+                if (!DerivationSchemeSettings.TryParseFromWalletFile(await ReadAllText(vm.WalletFile), network,
+                    out strategy))
                 {
                     TempData.SetStatusMessageModel(new StatusMessageModel()
                     {
@@ -113,6 +114,19 @@ namespace BTCPayServer.Controllers
                     return View(nameof(AddDerivationScheme), vm);
                 }
             }
+            else if (!string.IsNullOrEmpty(vm.WalletFileContent))
+            {
+                if (!DerivationSchemeSettings.TryParseFromWalletFile(vm.WalletFileContent, network, out strategy))
+                {
+                    TempData.SetStatusMessageModel(new StatusMessageModel()
+                    {
+                        Severity = StatusMessageModel.StatusSeverity.Error,
+                        Message = "QR import was not in the correct format"
+                    });
+                    vm.Confirmation = false;
+                    return View(nameof(AddDerivationScheme), vm);
+                }
+            }
             else
             {
                 try
@@ -122,16 +136,24 @@ namespace BTCPayServer.Controllers
                         var newStrategy = ParseDerivationStrategy(vm.DerivationScheme, null, network);
                         if (newStrategy.AccountDerivation != strategy?.AccountDerivation)
                         {
-                            var accountKey = string.IsNullOrEmpty(vm.AccountKey) ? null : new BitcoinExtPubKey(vm.AccountKey, network.NBitcoinNetwork);
+                            var accountKey = string.IsNullOrEmpty(vm.AccountKey)
+                                ? null
+                                : new BitcoinExtPubKey(vm.AccountKey, network.NBitcoinNetwork);
                             if (accountKey != null)
                             {
-                                var accountSettings = newStrategy.AccountKeySettings.FirstOrDefault(a => a.AccountKey == accountKey);
+                                var accountSettings =
+                                    newStrategy.AccountKeySettings.FirstOrDefault(a => a.AccountKey == accountKey);
                                 if (accountSettings != null)
                                 {
-                                    accountSettings.AccountKeyPath = vm.KeyPath == null ? null : KeyPath.Parse(vm.KeyPath);
-                                    accountSettings.RootFingerprint = string.IsNullOrEmpty(vm.RootFingerprint) ? (HDFingerprint?)null : new HDFingerprint(NBitcoin.DataEncoders.Encoders.Hex.DecodeData(vm.RootFingerprint));
+                                    accountSettings.AccountKeyPath =
+                                        vm.KeyPath == null ? null : KeyPath.Parse(vm.KeyPath);
+                                    accountSettings.RootFingerprint = string.IsNullOrEmpty(vm.RootFingerprint)
+                                        ? (HDFingerprint?)null
+                                        : new HDFingerprint(
+                                            NBitcoin.DataEncoders.Encoders.Hex.DecodeData(vm.RootFingerprint));
                                 }
                             }
+
                             strategy = newStrategy;
                             strategy.Source = vm.Source;
                             vm.DerivationScheme = strategy.AccountDerivation.ToString();
@@ -163,7 +185,7 @@ namespace BTCPayServer.Controllers
             var willBeExcluded = !vm.Enabled;
 
             var showAddress = // Show addresses if:
-                              // - If the user is testing the hint address in confirmation screen
+                // - If the user is testing the hint address in confirmation screen
                 (vm.Confirmation && !string.IsNullOrWhiteSpace(vm.HintAddress)) ||
                 // - The user is clicking on continue after changing the config
                 (!vm.Confirmation && oldConfig != vm.Config) ||
@@ -189,22 +211,22 @@ namespace BTCPayServer.Controllers
                 }
 
                 await _Repo.UpdateStore(store);
-                _EventAggregator.Publish(new WalletChangedEvent()
-                {
-                    WalletId = new WalletId(storeId, cryptoCode)
-                });
+                _EventAggregator.Publish(new WalletChangedEvent() {WalletId = new WalletId(storeId, cryptoCode)});
 
                 if (willBeExcluded != wasExcluded)
                 {
                     var label = willBeExcluded ? "disabled" : "enabled";
-                    TempData[WellKnownTempData.SuccessMessage] = $"On-Chain payments for {network.CryptoCode} has been {label}.";
+                    TempData[WellKnownTempData.SuccessMessage] =
+                        $"On-Chain payments for {network.CryptoCode} has been {label}.";
                 }
                 else
                 {
-                    TempData[WellKnownTempData.SuccessMessage] = $"Derivation settings for {network.CryptoCode} has been modified.";
+                    TempData[WellKnownTempData.SuccessMessage] =
+                        $"Derivation settings for {network.CryptoCode} has been modified.";
                 }
+
                 // This is success case when derivation scheme is added to the store
-                return RedirectToAction(nameof(UpdateStore), new { storeId = storeId });
+                return RedirectToAction(nameof(UpdateStore), new {storeId = storeId});
             }
             else if (!string.IsNullOrEmpty(vm.HintAddress))
             {
@@ -269,7 +291,7 @@ namespace BTCPayServer.Controllers
                     Severity = StatusMessageModel.StatusSeverity.Error,
                     Html = $"There was an error generating your wallet: {e.Message}"
                 });
-                return RedirectToAction(nameof(AddDerivationScheme), new { storeId, cryptoCode });
+                return RedirectToAction(nameof(AddDerivationScheme), new {storeId, cryptoCode});
             }
 
             if (response == null)
@@ -279,7 +301,7 @@ namespace BTCPayServer.Controllers
                     Severity = StatusMessageModel.StatusSeverity.Error,
                     Html = "There was an error generating your wallet. Is your node available?"
                 });
-                return RedirectToAction(nameof(AddDerivationScheme), new { storeId, cryptoCode });
+                return RedirectToAction(nameof(AddDerivationScheme), new {storeId, cryptoCode});
             }
 
             var store = HttpContext.GetStoreData();
@@ -315,7 +337,7 @@ namespace BTCPayServer.Controllers
                     Mnemonic = response.Mnemonic,
                     Passphrase = response.Passphrase,
                     IsStored = request.SavePrivateKeys,
-                    ReturnUrl = Url.Action(nameof(UpdateStore), new { storeId })
+                    ReturnUrl = Url.Action(nameof(UpdateStore), new {storeId})
                 };
                 return this.RedirectToRecoverySeedBackup(vm);
             }
@@ -332,7 +354,8 @@ namespace BTCPayServer.Controllers
 
         private async Task<(bool HotWallet, bool RPCImport)> CanUseHotWallet()
         {
-            var isAdmin = (await _authorizationService.AuthorizeAsync(User, Policies.CanModifyServerSettings)).Succeeded;
+            var isAdmin = (await _authorizationService.AuthorizeAsync(User, Policies.CanModifyServerSettings))
+                .Succeeded;
             if (isAdmin)
                 return (true, true);
             var policies = await _settingsRepository.GetSettingAsync<PoliciesSettings>();
diff --git a/BTCPayServer/Controllers/WalletsController.PSBT.cs b/BTCPayServer/Controllers/WalletsController.PSBT.cs
index cb43843a2..69ba4dcee 100644
--- a/BTCPayServer/Controllers/WalletsController.PSBT.cs
+++ b/BTCPayServer/Controllers/WalletsController.PSBT.cs
@@ -80,6 +80,7 @@ namespace BTCPayServer.Controllers
             {
                 vm.Decoded = psbt.ToString();
                 vm.PSBT = psbt.ToBase64();
+                vm.PSBTHex = psbt.ToHex();
             }
 
             return View(nameof(WalletPSBT), vm ?? new WalletPSBTViewModel() { CryptoCode = walletId.CryptoCode });
@@ -104,6 +105,8 @@ namespace BTCPayServer.Controllers
                 ModelState.AddModelError(nameof(vm.PSBT), "Invalid PSBT");
                 return View(vm);
             }
+
+            vm.PSBTHex = psbt.ToHex();
             var res = await TryHandleSigningCommands(walletId, psbt, command, new SigningContextModel(psbt));
             if (res != null)
             {
@@ -117,6 +120,7 @@ namespace BTCPayServer.Controllers
                     ModelState.Remove(nameof(vm.FileName));
                     ModelState.Remove(nameof(vm.UploadedPSBTFile));
                     vm.PSBT = psbt.ToBase64();
+                    vm.PSBTHex = psbt.ToHex();
                     vm.FileName = vm.UploadedPSBTFile?.FileName;
                     return View(vm);
 
diff --git a/BTCPayServer/Models/StoreViewModels/DerivationSchemeViewModel.cs b/BTCPayServer/Models/StoreViewModels/DerivationSchemeViewModel.cs
index 21372d30a..cf7522399 100644
--- a/BTCPayServer/Models/StoreViewModels/DerivationSchemeViewModel.cs
+++ b/BTCPayServer/Models/StoreViewModels/DerivationSchemeViewModel.cs
@@ -35,6 +35,8 @@ namespace BTCPayServer.Models.StoreViewModels
 
         [Display(Name = "Wallet File")]
         public IFormFile WalletFile { get; set; }
+        [Display(Name = "Wallet File Content")]
+        public string WalletFileContent { get; set; }
         public string Config { get; set; }
         public string Source { get; set; }
         public string DerivationSchemeFormat { get; set; }
diff --git a/BTCPayServer/Models/WalletViewModels/WalletPSBTViewModel.cs b/BTCPayServer/Models/WalletViewModels/WalletPSBTViewModel.cs
index 44f857528..8f4ea0455 100644
--- a/BTCPayServer/Models/WalletViewModels/WalletPSBTViewModel.cs
+++ b/BTCPayServer/Models/WalletViewModels/WalletPSBTViewModel.cs
@@ -13,6 +13,7 @@ namespace BTCPayServer.Models.WalletViewModels
         public string CryptoCode { get; set; }
         public string Decoded { get; set; }
         string _FileName;
+        public string PSBTHex { get; set; }
         public bool NBXSeedAvailable { get; set; }
 
         public string FileName
diff --git a/BTCPayServer/Models/WalletViewModels/WalletSettingsViewModel.cs b/BTCPayServer/Models/WalletViewModels/WalletSettingsViewModel.cs
index 28c9be42a..83ae47a6e 100644
--- a/BTCPayServer/Models/WalletViewModels/WalletSettingsViewModel.cs
+++ b/BTCPayServer/Models/WalletViewModels/WalletSettingsViewModel.cs
@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.ComponentModel.DataAnnotations;
+using Newtonsoft.Json;
 
 namespace BTCPayServer.Models.WalletViewModels
 {
@@ -22,6 +23,7 @@ namespace BTCPayServer.Models.WalletViewModels
 
     public class WalletSettingsAccountKeyViewModel
     {
+        [JsonProperty("ExtPubKey")]
         [DisplayName("Account key")]
         public string AccountKey { get; set; }
         [DisplayName("Master fingerprint")]
diff --git a/BTCPayServer/Views/Shared/CameraScanner.cshtml b/BTCPayServer/Views/Shared/CameraScanner.cshtml
new file mode 100644
index 000000000..3497d76fa
--- /dev/null
+++ b/BTCPayServer/Views/Shared/CameraScanner.cshtml
@@ -0,0 +1,220 @@
+<div id="camera-qr-scanner-modal-app" v-cloak class="only-for-js">
+    <div class="modal fade" data-backdrop="static" :id="modalId">
+        <div class="modal-dialog" role="document">
+            <div class="modal-content">
+                <div class="modal-header">
+                    <h5 class="modal-title">
+                        {{title}}
+                        <span v-if="workload.length > 0">Animated QR detected: {{workload.length}} / {{workload[0].total}} scanned</span>
+                    </h5>
+                    <button type="button" class="close" data-dismiss="modal" aria-label="Close" v-on:click="close">
+                        <span aria-hidden="true">&times;</span>
+                    </button>
+                </div>
+                <div class="modal-body p-0" v-if="loaded" v-bind:class="{'alert-danger': errorMessage}">
+                    <qrcode-drop-zone v-on:decode="onDecode" v-on:init="logErrors">
+                        <qrcode-stream v-on:decode="onDecode" v-on:init="onInit" v-bind:camera="camera" v-bind:track="paint">
+                            <div v-if="data || errorMessage" class="pending-action">
+
+                                <div class="text-danger p-2" v-if="errorMessage">{{errorMessage}}</div>
+                                <span class="text-muted text-truncate">{{data}}</span>
+                                <div class="w-100 btn-group">
+                                    <button v-if="data" type="button" class="btn btn-primary" data-dismiss="modal" v-on:click="submitData">Submit</button>
+                                    <button type="button" class="btn btn-secondary" v-on:click="retry">Retry</button>
+                                    <button type="button" class="btn btn-danger" data-dismiss="modal" v-on:click="close">Cancel</button>
+                                </div>
+                            </div>
+                        </qrcode-stream>
+                    </qrcode-drop-zone>
+                    <qrcode-capture v-if="noStreamApiSupport" v-on:decode="onDecode" v-bind:camera="camera"/>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+<style>
+    .pending-action {
+        position: absolute;
+        width: 100%;
+        height: 100%;        
+        background-color: rgba(255, 255, 255, .8);
+        text-align: center;
+        font-size: 1.4rem;
+        padding: 10px;
+        word-wrap: break-word;        
+        display: flex;
+        flex-flow: column nowrap;
+        justify-content: center;
+    }
+</style>
+
+
+<script>
+function initCameraScanningApp(title, onDataSubmit, modalId)
+{
+
+	new Vue(
+	{
+		el: '#camera-qr-scanner-modal-app',
+		data:
+		{
+			noStreamApiSupport: false,
+			loaded: false,
+			workload: [],
+			data: "",
+			title: title,
+			errorMessage: "",
+			modalId: modalId
+		},
+		mounted: function ()
+		{
+			var self = this;
+			$("#" + this.modalId)
+				.on("shown.bs.modal", function ()
+				{
+					self.loaded = true;
+				})
+				.on("hide.bs.modal", function ()
+				{
+					self.close();
+				});
+		},
+		computed:
+		{
+			camera: function ()
+			{
+				return this.data ? "off" : "auto";
+			}
+		},
+		methods:
+		{
+			retry: function ()
+			{
+				if (!this.data)
+				{
+					this.close();
+					this.$nextTick(function ()
+					{
+						this.loaded = true;
+					});
+					return;
+				}
+				this.data = "";
+				this.workload = [];
+				this.errorMessage = "";
+			},
+			close: function ()
+			{
+				this.loaded = false;
+				this.data = "";
+				this.workload = [];
+				this.errorMessage = "";
+			},
+			onDecode: function (content)
+			{
+				if (this.data)
+				{
+					return;
+				}
+				if (!content.toLowerCase().startsWith("ur:"))
+				{
+					this.data = content;
+					this.workload = [];
+				}
+				else
+				{
+					const [index, total] = window.bcur.extractSingleWorkload(content);
+					if (this.workload.length > 0)
+					{
+						const currentTotal = this.workload[0].total;
+						if (total !== currentTotal)
+						{
+							this.workload = [];
+						}
+					}
+					if (!this.workload.find(i => i.index === index))
+					{
+						this.workload.push(
+						{
+							index,
+							total,
+							data: content,
+						});
+						if (this.workload.length === total)
+						{
+							this.data = window.bcur.decodeUR(this.workload.map(i => i.data));
+						}
+					}
+				}
+			},
+			submitData: function ()
+			{
+				if (onDataSubmit)
+				{
+					onDataSubmit(this.data);
+				}
+				this.close();
+			},
+			logErrors: function (promise)
+			{
+				promise.catch(console.error)
+			},
+			paint: function (location, ctx)
+			{
+				ctx.fillStyle = '#137547';
+				[
+					location.topLeftFinderPattern,
+					location.topRightFinderPattern,
+					location.bottomLeftFinderPattern
+				].forEach((
+				{
+					x,
+					y
+				}) =>
+				{
+					ctx.fillRect(x - 5, y - 5, 10, 10);
+				})
+			},
+			onInit: function (promise)
+			{
+				var self = this;
+				promise.then(() =>
+					{
+						self.errorMessage = "";
+					})
+					.catch(error =>
+					{
+						if (error.name === 'StreamApiNotSupportedError')
+						{
+							self.noStreamApiSupport = true;
+						}
+						else if (error.name === 'NotAllowedError')
+						{
+							self.errorMessage = 'A permission to the camera is needed to scan the QR code.'
+						}
+						else if (error.name === 'NotFoundError')
+						{
+							self.errorMessage = 'A camera was not detected on your device.'
+						}
+						else if (error.name === 'NotSupportedError')
+						{
+							self.errorMessage = 'This page is served in non-secure context (HTTPS, localhost or file://)'
+						}
+						else if (error.name === 'NotReadableError')
+						{
+							self.errorMessage = 'Couldn\'t access your camera. Is it already in use?'
+						}
+						else if (error.name === 'OverconstrainedError')
+						{
+							self.errorMessage = 'Constraints don\'t match any installed camera.'
+						}
+						else
+						{
+							self.errorMessage = 'UNKNOWN ERROR: ' + error.message
+						}
+					})
+			}
+		}
+	});
+}
+</script>
diff --git a/BTCPayServer/Views/Shared/ShowQR.cshtml b/BTCPayServer/Views/Shared/ShowQR.cshtml
new file mode 100644
index 000000000..fe25db48e
--- /dev/null
+++ b/BTCPayServer/Views/Shared/ShowQR.cshtml
@@ -0,0 +1,105 @@
+<div id="scan-qr-modal-app">
+    <div class="modal" tabindex="-1" role="dialog" :id="modalId">
+        <div class="modal-dialog" role="document">
+            <div class="modal-content">
+                <div class="modal-header">
+                    <h5 class="modal-title">{{title}} <template v-if="fragments.length > 1">({{index+1}}/{{fragments.length}})</template></h5>
+                    <button type="button" class="close" data-dismiss="modal" aria-label="Close">
+                        <span aria-hidden="true">&times;</span>
+                    </button>
+                </div>
+                <div class="modal-body ">
+                    <div class="qr-container text-center" style="min-height: 256px;">
+                        <qrcode v-bind:value="currentFragment" :options="{ width: 256,height:256, margin: 1, color: {dark:'#000', light:'#f5f5f7'} }">
+                        </qrcode>
+                    </div>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+<script> 
+ function initQRShow(title, data, modalId)
+ {
+ 	return new Vue(
+ 	{
+ 		el: '#scan-qr-modal-app',
+ 		components:
+ 		{
+ 			qrcode: VueQrcode
+ 		},
+ 		data:
+ 		{
+ 			index: -1,
+ 			title: title,
+ 			speed: 500,
+ 			data: data,
+ 			fragments: [],
+ 			active: false,
+ 			modalId: modalId
+ 		},
+ 		computed:
+ 		{
+ 			currentFragment: function ()
+ 			{
+ 				return this.fragments[this.index];
+ 			}
+ 		},
+ 		mounted: function ()
+ 		{
+ 			var self = this;
+ 			$("#" + this.modalId)
+ 				.on("shown.bs.modal", function ()
+ 				{
+ 					self.start();
+ 				})
+ 				.on("hide.bs.modal", function ()
+ 				{
+ 					self.active = false;
+ 				});
+ 			self.setFragments();
+ 		},
+ 		watch:
+ 		{
+ 			data: function ()
+ 			{
+ 				this.setFragments();
+ 			}
+ 		},
+ 		methods:
+ 		{
+ 			setFragments: function ()
+ 			{
+ 				if (!this.data)
+ 				{
+ 					this.fragments = [];
+ 					return;
+ 				}
+ 				this.fragments = window.bcur.encodeUR(this.data.toString(), 200);
+ 			},
+ 			start: function ()
+ 			{
+ 				this.active = true;
+ 				this.index = -1;
+ 				this.playNext();
+ 			},
+ 			playNext: function ()
+ 			{
+ 				if (!this.active)
+ 				{
+ 					return;
+ 				}
+ 				this.index++;
+ 				if (this.index > (this.fragments.length - 1))
+ 				{
+ 					this.index = 0;
+ 				}
+ 				setTimeout(this.playNext, this.speed)
+ 			}
+ 		}
+ 	});
+ }
+ </script>
diff --git a/BTCPayServer/Views/Stores/AddDerivationScheme.cshtml b/BTCPayServer/Views/Stores/AddDerivationScheme.cshtml
index c059a5282..6b1b0943d 100644
--- a/BTCPayServer/Views/Stores/AddDerivationScheme.cshtml
+++ b/BTCPayServer/Views/Stores/AddDerivationScheme.cshtml
@@ -1,4 +1,5 @@
 @model DerivationSchemeViewModel
+@addTagHelper *, BundlerMinifier.TagHelpers
 @{
     Layout = "../Shared/_NavLayout.cshtml";
     ViewData.SetActivePageAndTitle(StoreNavPages.Index, $"{Model.CryptoCode} Derivation scheme");
@@ -94,6 +95,7 @@
                                     <button class="dropdown-item check-for-vault" type="button">... a hardware wallet</button>
                                 }
                                 <button class="dropdown-item" type="button" data-toggle="modal" data-target="#electrumimport">... a wallet file (Electrum, Wasabi, Cobo Vault, ColdCard)</button>
+                                <button class="dropdown-item" type="button" data-toggle="modal" data-target="#scanqrModal">... a QR code</button>
                                 @if (Model.CanUseHotWallet)
                                 {
                                     <button class="dropdown-item" data-toggle="modal" data-target="#nbxplorergeneratewallet" type="button" id="nbxplorergeneratewalletbtn">... a new/existing seed.</button>
@@ -216,7 +218,16 @@
     <script src="~/js/StoreAddDerivationScheme.js" type="text/javascript" defer="defer" asp-append-version="true"></script>
     <script src="~/js/vaultbridge.js" type="text/javascript" defer="defer" asp-append-version="true"></script>
     <script src="~/js/vaultbridge.ui.js" type="text/javascript" defer="defer" asp-append-version="true"></script>
+    <bundle name="wwwroot/bundles/camera-bundle.min.js"></bundle>
+    <link href="~/vendor/vue-qrcode-reader/vue-qrcode-reader.css" rel="stylesheet" asp-append-version="true"/>
     <script>
         window.coinName = "@Model.Network.DisplayName.ToLowerInvariant()";
+        $(function () {
+            initCameraScanningApp("Scan wallet QR", function(data){
+                $("#WalletFileContent").val(data);
+                $("#qr-import-form").submit();
+            },"scanqrModal");
+        });
+
     </script>
 }
diff --git a/BTCPayServer/Views/Stores/AddDerivationSchemes_HardwareWalletDialogs.cshtml b/BTCPayServer/Views/Stores/AddDerivationSchemes_HardwareWalletDialogs.cshtml
index 231df990a..1c04f7df3 100644
--- a/BTCPayServer/Views/Stores/AddDerivationSchemes_HardwareWalletDialogs.cshtml
+++ b/BTCPayServer/Views/Stores/AddDerivationSchemes_HardwareWalletDialogs.cshtml
@@ -6,7 +6,10 @@
     
     <partial name="AddDerivationSchemes_NBXWalletGenerate" model="@(new GenerateWalletRequest())"/>
 }
-
+<partial name="CameraScanner"/>
+<form id="qr-import-form" method="post">
+    <input type="hidden" asp-for="WalletFileContent"/>
+</form>
 <div class="modal fade" id="electrumimport" tabindex="-1" role="dialog" aria-labelledby="electrumimport" aria-hidden="true">
     <div class="modal-dialog modal-lg" role="document">
         <form class="modal-content" method="post" enctype="multipart/form-data">
@@ -62,7 +65,7 @@
 
 <template id="btcpayservervault_template">
     <div class="modal-dialog" role="document">
-        <form class="modal-content" form method="post" enctype="multipart/form-data">
+        <form class="modal-content" method="post" enctype="multipart/form-data">
             <div class="modal-header">
                 <h5 class="modal-title" id="exampleModalLabel">Import from BTCPayServer Vault</h5>
                 <button type="button" class="close" data-dismiss="modal" aria-label="Close">
diff --git a/BTCPayServer/Views/Wallets/WalletCameraScanner.cshtml b/BTCPayServer/Views/Wallets/WalletCameraScanner.cshtml
deleted file mode 100644
index d9e3fcc9f..000000000
--- a/BTCPayServer/Views/Wallets/WalletCameraScanner.cshtml
+++ /dev/null
@@ -1,51 +0,0 @@
-@model WalletSendModel
-
-<link href="~/vendor/vue-qrcode-reader/vue-qrcode-reader.css" rel="stylesheet" asp-append-version="true" />
-<div id="wallet-camera-app" v-cloak class="only-for-js">
-    <div class="modal fade" data-backdrop="static" id="scanModal">
-
-        <div class="modal-dialog" role="document">
-            <div class="modal-content">
-
-                <div class="modal-body p-0" v-if="loaded" v-bind:class="{'alert-danger': errorMessage}">
-                    <div class="p-2" style="position: absolute; right: 0; top: 0; width: 100%; z-index:5">
-                        <button type="button" class="close" data-dismiss="modal" aria-label="Close" v-on:click="close">
-                            <span aria-hidden="true">&times;</span>
-                        </button>
-                    </div>
-                    <qrcode-drop-zone v-on:decode="onDecode" v-on:init="logErrors">
-                        <qrcode-stream v-on:decode="onDecode" v-on:init="onInit" v-bind:camera="camera" v-bind:track="paint">
-                            <div v-if="data || errorMessage" class="pending-action">
-                                
-                                <div class="text-danger p-2" v-if="errorMessage">{{errorMessage}}</div>
-                                <span class="text-muted">{{data}}</span>
-                                <div class="w-100 btn-group">
-                                    <button v-if="data" type="button" class="btn btn-primary" data-dismiss="modal" v-on:click="submitData">Submit</button>
-                                    <button type="button" class="btn btn-secondary" v-on:click="retry">Retry</button>
-                                    <button type="button" class="btn btn-danger" data-dismiss="modal" v-on:click="close">Cancel</button>
-                                </div>
-                            </div>
-                        </qrcode-stream>
-                    </qrcode-drop-zone>
-                    <qrcode-capture v-if="noStreamApiSupport" v-on:decode="onDecode" v-bind:camera="camera"/>
-                </div>
-            </div>
-        </div>
-    </div>
-</div>
-<style>
-    .pending-action {
-        position: absolute;
-        width: 100%;
-        height: 100%;
-        
-        background-color: rgba(255, 255, 255, .8);
-        text-align: center;
-        font-size: 1.4rem;
-        padding: 10px;
-        word-wrap: break-word;        
-        display: flex;
-        flex-flow: column nowrap;
-        justify-content: center;
-    }
-</style>
diff --git a/BTCPayServer/Views/Wallets/WalletPSBT.cshtml b/BTCPayServer/Views/Wallets/WalletPSBT.cshtml
index bf101f154..733bf2995 100644
--- a/BTCPayServer/Views/Wallets/WalletPSBT.cshtml
+++ b/BTCPayServer/Views/Wallets/WalletPSBT.cshtml
@@ -1,4 +1,5 @@
 @model WalletPSBTViewModel
+@addTagHelper *, BundlerMinifier.TagHelpers
 @{
     Layout = "../Shared/_NavLayout.cshtml";
     ViewData["Title"] = "PSBT";
@@ -8,7 +9,7 @@
 {
     <div class="row">
         <div class="col-md-10 text-center">
-            <partial name="_StatusMessage" />
+            <partial name="_StatusMessage"/>
         </div>
     </div>
 }
@@ -17,10 +18,13 @@
         @if (Model.Errors != null && Model.Errors.Count != 0)
         {
             <div class="alert alert-danger alert-dismissible" role="alert">
-                <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button>
+                <button type="button" class="close" data-dismiss="alert" aria-label="Close">
+                    <span aria-hidden="true">&times;</span>
+                </button>
                 @foreach (var error in Model.Errors)
                 {
-                    <span>@error</span><br />
+                    <span>@error</span>
+                    <br/>
                 }
             </div>
         }
@@ -29,11 +33,11 @@
             <h3>Decoded PSBT</h3>
             <div class="form-group">
                 <form method="post" asp-action="WalletPSBT" asp-route-walletId="@this.Context.GetRouteValue("walletId")">
-                    <input type="hidden" asp-for="CryptoCode" />
-                    <input type="hidden" asp-for="NBXSeedAvailable" />
-                    <input type="hidden" asp-for="PSBT" />
-                    <input type="hidden" asp-for="FileName" />
-                    <div  class="d-flex">
+                    <input type="hidden" asp-for="CryptoCode"/>
+                    <input type="hidden" asp-for="NBXSeedAvailable"/>
+                    <input type="hidden" asp-for="PSBT"/>
+                    <input type="hidden" asp-for="FileName"/>
+                    <div class="d-flex">
                         <partial name="WalletSigningMenu" model="@((Model.CryptoCode, Model.NBXSeedAvailable))"/>
                         <div class="ml-2 dropdown">
                             <button class="btn btn-secondary dropdown-toggle" type="button" id="OtherActions" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
@@ -44,6 +48,7 @@
                                 <button name="command" type="submit" class="dropdown-item" value="update">Update</button>
                                 <button name="command" type="submit" class="dropdown-item" value="combine">Combine</button>
                                 <button name="command" type="submit" class="dropdown-item" value="save-psbt">Download</button>
+                                <button name="command" type="button" class="dropdown-item only-for-js" data-toggle="modal" data-target="#scan-qr-modal">Show QR</button>
                             </div>
                         </div>
                     </div>
@@ -58,18 +63,40 @@
                 <label asp-for="PSBT"></label>
                 <textarea class="form-control" rows="5" asp-for="PSBT"></textarea>
                 <span asp-validation-for="PSBT" class="text-danger"></span>
+
             </div>
             <div class="form-group">
                 <label asp-for="UploadedPSBTFile"></label>
                 <input type="file" class="form-control-file" asp-for="UploadedPSBTFile">
             </div>
-            <button type="submit" name="command" value="decode" class="btn btn-primary">Decode</button>
+
+            <button type="button" id="scanqrcode" class="ml-2 btn btn-secondary only-for-js" data-toggle="modal" data-target="#scanModal" title="Scan with camera">
+                <i class="fa fa-camera"></i>
+            </button>
+            <button type="submit" name="command" value="decode" class="btn btn-primary" id="Decode">Decode</button>
         </form>
     </div>
 </div>
+<partial name="ShowQR"/>
+<partial name="CameraScanner"/>
+
 
 @section Scripts {
     <link rel="stylesheet" href="~/vendor/highlightjs/default.min.css" asp-append-version="true">
     <script src="~/vendor/highlightjs/highlight.min.js" asp-append-version="true"></script>
+    <bundle name="wwwroot/bundles/camera-bundle.min.js"></bundle>
+    <link href="~/vendor/vue-qrcode-reader/vue-qrcode-reader.css" rel="stylesheet" asp-append-version="true"/>
     <script>hljs.initHighlightingOnLoad();</script>
+
+    <script>
+    
+    $(function (){
+        initQRShow("Scan PSBT", @Json.Serialize(Model.PSBTHex), "scan-qr-modal");
+        
+       initCameraScanningApp("Scan PSBT", function (data){
+           $("textarea[name=PSBT]").val(data);
+           $("#Decode").click();
+       }, "scanModal") 
+    });
+</script>
 }
diff --git a/BTCPayServer/Views/Wallets/WalletReceive.cshtml b/BTCPayServer/Views/Wallets/WalletReceive.cshtml
index 0c8e1cc45..80eb512f5 100644
--- a/BTCPayServer/Views/Wallets/WalletReceive.cshtml
+++ b/BTCPayServer/Views/Wallets/WalletReceive.cshtml
@@ -1,4 +1,5 @@
-@using Microsoft.AspNetCore.Mvc.ModelBinding
+
+@addTagHelper *, BundlerMinifier.TagHelpers
 @model BTCPayServer.Controllers.WalletReceiveViewModel
 @{
     Layout = "../Shared/_NavLayout.cshtml";
@@ -74,7 +75,7 @@
 @section HeadScripts
 
 {
-    <script src="~/bundles/lightning-node-info-bundle.min.js" type="text/javascript" asp-append-version="true"></script>
+    <bundle name="wwwroot/bundles/lightning-node-info-bundle.min.js" asp-append-version="true" />
     <script type="text/javascript">
         var srvModel = @Safe.Json(Model);
         window.onload = function() {
diff --git a/BTCPayServer/Views/Wallets/WalletSend.cshtml b/BTCPayServer/Views/Wallets/WalletSend.cshtml
index 0b4d4bb5f..e17d73cf9 100644
--- a/BTCPayServer/Views/Wallets/WalletSend.cshtml
+++ b/BTCPayServer/Views/Wallets/WalletSend.cshtml
@@ -15,7 +15,7 @@
         </div>
     </div>
 }
-<partial name="WalletCameraScanner"/>
+<partial name="CameraScanner"/>
 
 <div class="row">
     <div class="@(!Model.InputSelection && Model.Outputs.Count==1? "col-lg-7 transaction-output-form": "col-lg-8")">
@@ -229,7 +229,8 @@
 
 @section HeadScripts
 {
-    <bundle name="wwwroot/bundles/wallet-send-bundle.min.js" asp-append-version="true"></bundle>
+    <bundle name="wwwroot/bundles/wallet-send-bundle.min.js"></bundle>
+    <link href="~/vendor/vue-qrcode-reader/vue-qrcode-reader.css" rel="stylesheet" asp-append-version="true"/>
     <style>
         .remove-destination-btn { font-size: 1.5rem; }
         .remove-destination-btn:hover { border-color: var(--btcpay-color-danger); }
diff --git a/BTCPayServer/Views/Wallets/WalletSettings.cshtml b/BTCPayServer/Views/Wallets/WalletSettings.cshtml
index 7561b44e2..cdc16a103 100644
--- a/BTCPayServer/Views/Wallets/WalletSettings.cshtml
+++ b/BTCPayServer/Views/Wallets/WalletSettings.cshtml
@@ -1,4 +1,7 @@
-@model WalletSettingsViewModel
+@using Newtonsoft.Json
+@using System.Text
+@using NBitcoin.DataEncoders
+@model WalletSettingsViewModel
 @{
     Layout = "../Shared/_NavLayout.cshtml";
     ViewData["Title"] = "Wallet settings";
@@ -37,8 +40,9 @@
             @for (int i = 0; i < Model.AccountKeys.Count; i++)
             {
                 <hr class="my-4"/>
-
+<span class="d-flex">
                 <h4 class="mb-3">Account key @i</h4>
+                <button type="button" class="btn btn-link only-for-js mb-2 fa fa-qrcode text-decoration-none" data-wallet="@i" title="Show QR"></button></span>
                 <div class="form-group">
                     <label asp-for="@Model.AccountKeys[i].AccountKey"></label>
                     <input asp-for="@Model.AccountKeys[i].AccountKey" class="form-control" readonly/>
@@ -86,9 +90,25 @@
         </form>
     </div>
 </div>
+    <script src="~/vendor/vuejs/vue.min.js" asp-append-version="true"></script>
+    <script src="~/vendor/vue-qrcode/vue-qrcode.min.js" asp-append-version="true"></script>
+    <script src="~/vendor/bc-ur/web-bundle.js" asp-append-version="true"></script>
+    <script src="~/vendor/vue-qrcode-reader/vue-qrcode-reader.browser.js" asp-append-version="true"></script>
+<link href="~/vendor/vue-qrcode-reader/vue-qrcode-reader.css" rel="stylesheet" asp-append-version="true"/>
 
+<partial name="ShowQR"/>
 <script>
-    $(document).ready(function(){
+    var wallets = @Safe.Json(Model.AccountKeys.Select(model =>  Encoders.Hex.EncodeData(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(model)))));
+    $(document).ready(function(){        
+        var qrApp = initQRShow("Wallet QR", "", "scan-qr-modal");
+        $("button[data-wallet]").on("click", function (){
+            var data = $(this).data("wallet");
+            var wallet = wallets[parseInt(data)];
+            qrApp.data = wallet;
+            $("#scan-qr-modal").modal("show");
+        });
+        
+        
         if(navigator.registerProtocolHandler){
             $(".register-wallet")
                 .show()
diff --git a/BTCPayServer/Views/Wallets/WalletSigningMenu.cshtml b/BTCPayServer/Views/Wallets/WalletSigningMenu.cshtml
index e275603f9..7c8ca78a1 100644
--- a/BTCPayServer/Views/Wallets/WalletSigningMenu.cshtml
+++ b/BTCPayServer/Views/Wallets/WalletSigningMenu.cshtml
@@ -8,7 +8,7 @@
     <div class="dropdown-menu" aria-labelledby="SendMenu">
         @if (Model.CryptoCode == "BTC")
         {
-        <button name="command" type="submit" class="dropdown-item" value="vault">... a hardware wallet</button>
+            <button name="command" type="submit" class="dropdown-item" value="vault">... a hardware wallet</button>
         }
         <button name="command" type="submit" class="dropdown-item" value="seed">... an HD private key or mnemonic seed</button>
         <button name="command" type="submit" class="dropdown-item" value="analyze-psbt">... a wallet supporting PSBT</button>
diff --git a/BTCPayServer/Views/Wallets/_ViewImports.cshtml b/BTCPayServer/Views/Wallets/_ViewImports.cshtml
index 9d7e22dca..f0c1fba0c 100644
--- a/BTCPayServer/Views/Wallets/_ViewImports.cshtml
+++ b/BTCPayServer/Views/Wallets/_ViewImports.cshtml
@@ -1,2 +1,3 @@
 @using BTCPayServer.Views.Wallets
 @using BTCPayServer.Models.WalletViewModels
+@addTagHelper *, BundlerMinifier.TagHelpers
diff --git a/BTCPayServer/bundleconfig.json b/BTCPayServer/bundleconfig.json
index 6bf2ccedf..5f5b91aa4 100644
--- a/BTCPayServer/bundleconfig.json
+++ b/BTCPayServer/bundleconfig.json
@@ -49,7 +49,7 @@
             "wwwroot/vendor/clipboard.js/clipboard.js",
             "wwwroot/vendor/jquery/jquery.js",
             "wwwroot/vendor/vuejs/vue.min.js",
-            "wwwroot/vendor/vue-qrcode/vue-qrcode.js",
+            "wwwroot/vendor/vue-qrcode/vue-qrcode.min.js",
             "wwwroot/vendor/i18next/i18next.js",
             "wwwroot/vendor/i18next/i18nextXHRBackend.js",
             "wwwroot/vendor/i18next/vue-i18next.js",
@@ -64,7 +64,7 @@
             "wwwroot/vendor/clipboard.js/clipboard.js",
             "wwwroot/vendor/jquery/jquery.js",
             "wwwroot/vendor/vuejs/vue.min.js",
-            "wwwroot/vendor/vue-qrcode/vue-qrcode.js",
+            "wwwroot/vendor/vue-qrcode/vue-qrcode.min.js",
             "wwwroot/vendor/vue-toasted/vue-toasted.min.js"
         ]
     },
@@ -196,6 +196,7 @@
         "inputFiles": [
             "wwwroot/vendor/vuejs/vue.min.js",
             "wwwroot/vendor/babel-polyfill/polyfill.min.js",
+            "wwwroot/vendor/bc-ur/web-bundle.js",
             "wwwroot/vendor/vue-qrcode-reader/vue-qrcode-reader.browser.js",
             "wwwroot/js/wallet/**/*.js"
         ],
@@ -209,5 +210,17 @@
             "wwwroot/modal/btcpay.js",
             "wwwroot/shopify/btcpay-shopify.js"
         ]
+    },
+    {
+        "outputFileName": "wwwroot/bundles/camera-bundle.min.js",
+        "inputFiles": [
+            "wwwroot/vendor/vuejs/vue.min.js",
+            "wwwroot/vendor/vue-qrcode/vue-qrcode.min.js",
+            "wwwroot/vendor/bc-ur/web-bundle.js",
+            "wwwroot/vendor/vue-qrcode-reader/vue-qrcode-reader.browser.js"
+        ],
+        "minify": {
+            "enabled": false
+        }
     }
 ]
diff --git a/BTCPayServer/wwwroot/js/wallet/wallet-camera-scanner.js b/BTCPayServer/wwwroot/js/wallet/wallet-camera-scanner.js
index fbea564da..899b64786 100644
--- a/BTCPayServer/wwwroot/js/wallet/wallet-camera-scanner.js
+++ b/BTCPayServer/wwwroot/js/wallet/wallet-camera-scanner.js
@@ -1,83 +1,6 @@
 $(function () {
-    new Vue({
-        el: '#wallet-camera-app',
-        data: {
-            noStreamApiSupport: false,
-            loaded: false,
-            data: "",
-            errorMessage: ""
-        },
-        mounted: function () {
-            var self = this;
-            $("#scanqrcode").click(function () {
-                self.loaded = true;
-            });
-        },
-        computed: {
-            camera: function () {
-                return this.data ? "off" : "auto";
-            }
-        },
-        methods: {
-            retry: function () {
-                if (!this.data) {
-                    this.close();
-                    this.$nextTick(function () {
-                        this.loaded = true;
-                    });
-                    return;
-                }
-                this.data = "";
-            },
-            close: function () {
-                this.loaded = false;
-                this.data = "";
-                this.errorMessage = "";
-            },
-            onDecode(content) {
-                this.data = decodeURIComponent(content);
-            },
-            submitData: function () {
-                $("#BIP21").val(this.data);
-                $("form").submit();
-                this.close();
-            },
-            logErrors: function (promise) {
-                promise.catch(console.error)
-            },
-            paint: function (location, ctx) {
-                ctx.fillStyle = '#137547';
-                [
-                    location.topLeftFinderPattern,
-                    location.topRightFinderPattern,
-                    location.bottomLeftFinderPattern
-                ].forEach(({x, y}) => {
-                    ctx.fillRect(x - 5, y - 5, 10, 10);
-                })
-            },
-            onInit: function (promise) {
-                var self = this;
-                promise.then(() => {
-                    self.errorMessage = "";
-                })
-                    .catch(error => {
-                        if (error.name === 'StreamApiNotSupportedError') {
-                            self.noStreamApiSupport = true;
-                        } else if (error.name === 'NotAllowedError') {
-                            self.errorMessage = 'A permission to the camera is needed to scan the QR code.'
-                        } else if (error.name === 'NotFoundError') {
-                            self.errorMessage = 'A camera was not detected on your device.'
-                        } else if (error.name === 'NotSupportedError') {
-                            self.errorMessage = 'This page is served in non-secure context (HTTPS, localhost or file://)'
-                        } else if (error.name === 'NotReadableError') {
-                            self.errorMessage = 'Couldn\'t access your camera. Is it already in use?'
-                        } else if (error.name === 'OverconstrainedError') {
-                            self.errorMessage = 'Constraints don\'t match any installed camera.'
-                        } else {
-                            self.errorMessage = 'UNKNOWN ERROR: ' + error.message
-                        }
-                    })
-            }
-        }
-    });
+    initCameraScanningApp("Scan address/ payment link", function(data){
+        $("#BIP21").val(data);
+        $("form").submit();
+    },"scanModal");
 });
diff --git a/BTCPayServer/wwwroot/vendor/bc-ur/web-bundle.js b/BTCPayServer/wwwroot/vendor/bc-ur/web-bundle.js
new file mode 100644
index 000000000..5a2c9357a
--- /dev/null
+++ b/BTCPayServer/wwwroot/vendor/bc-ur/web-bundle.js
@@ -0,0 +1 @@
+!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{("undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this).bcur=e()}}((function(){for(var e=function(e){var t;return function(r){return t||e(t={exports:{},parent:r},t.exports),t.exports}},t=e((function(e,t){(function(t,i){"use strict";var o;e.exports=y,y.ReadableState=b,B.EventEmitter;var a=function(e,t){return e.listeners(t).length},s=kr.Buffer,f=i.Uint8Array||function(){},u=Object.create(xr);u.inherits=wr;var h,c=l({}),d=void 0;d=c&&c.debuglog?c.debuglog("stream"):function(){},u.inherits(y,Mr);var p=["error","close","destroy","pause","resume"];function b(e,t){e=e||{};var i=t instanceof(o=o||n({}));this.objectMode=!!e.objectMode,i&&(this.objectMode=this.objectMode||!!e.readableObjectMode);var 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e.negative=0,t=this.isub(e),e.negative=1,t._normSign();this.length>e.length?(r=this,n=e):(r=e,n=this);for(var i=0,o=0;o<n.length;o++)t=(0|r.words[o])+(0|n.words[o])+i,this.words[o]=67108863&t,i=t>>>26;for(;0!==i&&o<r.length;o++)t=(0|r.words[o])+i,this.words[o]=67108863&t,i=t>>>26;if(this.length=r.length,0!==i)this.words[this.length]=i,this.length++;else if(r!==this)for(;o<r.length;o++)this.words[o]=r.words[o];return this},n.prototype.add=function(e){var t;return 0!==e.negative&&0===this.negative?(e.negative=0,t=this.sub(e),e.negative^=1,t):0===e.negative&&0!==this.negative?(this.negative=0,t=e.sub(this),this.negative=1,t):this.length>e.length?this.clone().iadd(e):e.clone().iadd(this)},n.prototype.isub=function(e){if(0!==e.negative){e.negative=0;var t=this.iadd(e);return e.negative=1,t._normSign()}if(0!==this.negative)return this.negative=0,this.iadd(e),this.negative=1,this._normSign();var r,n,i=this.cmp(e);if(0===i)return this.negative=0,this.length=1,this.words[0]=0,this;i>0?(r=this,n=e):(r=e,n=this);for(var o=0,a=0;a<n.length;a++)o=(t=(0|r.words[a])-(0|n.words[a])+o)>>26,this.words[a]=67108863&t;for(;0!==o&&a<r.length;a++)o=(t=(0|r.words[a])+o)>>26,this.words[a]=67108863&t;if(0===o&&a<r.length&&r!==this)for(;a<r.length;a++)this.words[a]=r.words[a];return this.length=Math.max(this.length,a),r!==this&&(this.negative=1),this.strip()},n.prototype.sub=function(e){return this.clone().isub(e)};var c=function(e,t,r){var n,i,o,a=e.words,s=t.words,f=r.words,u=0,h=0|a[0],c=8191&h,d=h>>>13,l=0|a[1],p=8191&l,b=l>>>13,y=0|a[2],g=8191&y,m=y>>>13,v=0|a[3],w=8191&v,_=v>>>13,S=0|a[4],E=8191&S,M=S>>>13,k=0|a[5],I=8191&k,O=k>>>13,T=0|a[6],A=8191&T,P=T>>>13,x=0|a[7],R=8191&x,N=x>>>13,B=0|a[8],U=8191&B,L=B>>>13,C=0|a[9],j=8191&C,D=C>>>13,q=0|s[0],H=8191&q,K=q>>>13,F=0|s[1],V=8191&F,z=F>>>13,W=0|s[2],G=8191&W,X=W>>>13,J=0|s[3],Y=8191&J,Q=J>>>13,Z=0|s[4],$=8191&Z,ee=Z>>>13,te=0|s[5],re=8191&te,ne=te>>>13,ie=0|s[6],oe=8191&ie,ae=ie>>>13,se=0|s[7],fe=8191&se,ue=se>>>13,he=0|s[8],ce=8191&he,de=he>>>13,le=0|s[9],pe=8191&le,be=le>>>13;r.negative=e.negative^t.negative,r.length=19;var ye=(u+(n=Math.imul(c,H))|0)+((8191&(i=(i=Math.imul(c,K))+Math.imul(d,H)|0))<<13)|0;u=((o=Math.imul(d,K))+(i>>>13)|0)+(ye>>>26)|0,ye&=67108863,n=Math.imul(p,H),i=(i=Math.imul(p,K))+Math.imul(b,H)|0,o=Math.imul(b,K);var ge=(u+(n=n+Math.imul(c,V)|0)|0)+((8191&(i=(i=i+Math.imul(c,z)|0)+Math.imul(d,V)|0))<<13)|0;u=((o=o+Math.imul(d,z)|0)+(i>>>13)|0)+(ge>>>26)|0,ge&=67108863,n=Math.imul(g,H),i=(i=Math.imul(g,K))+Math.imul(m,H)|0,o=Math.imul(m,K),n=n+Math.imul(p,V)|0,i=(i=i+Math.imul(p,z)|0)+Math.imul(b,V)|0,o=o+Math.imul(b,z)|0;var me=(u+(n=n+Math.imul(c,G)|0)|0)+((8191&(i=(i=i+Math.imul(c,X)|0)+Math.imul(d,G)|0))<<13)|0;u=((o=o+Math.imul(d,X)|0)+(i>>>13)|0)+(me>>>26)|0,me&=67108863,n=Math.imul(w,H),i=(i=Math.imul(w,K))+Math.imul(_,H)|0,o=Math.imul(_,K),n=n+Math.imul(g,V)|0,i=(i=i+Math.imul(g,z)|0)+Math.imul(m,V)|0,o=o+Math.imul(m,z)|0,n=n+Math.imul(p,G)|0,i=(i=i+Math.imul(p,X)|0)+Math.imul(b,G)|0,o=o+Math.imul(b,X)|0;var ve=(u+(n=n+Math.imul(c,Y)|0)|0)+((8191&(i=(i=i+Math.imul(c,Q)|0)+Math.imul(d,Y)|0))<<13)|0;u=((o=o+Math.imul(d,Q)|0)+(i>>>13)|0)+(ve>>>26)|0,ve&=67108863,n=Math.imul(E,H),i=(i=Math.imul(E,K))+Math.imul(M,H)|0,o=Math.imul(M,K),n=n+Math.imul(w,V)|0,i=(i=i+Math.imul(w,z)|0)+Math.imul(_,V)|0,o=o+Math.imul(_,z)|0,n=n+Math.imul(g,G)|0,i=(i=i+Math.imul(g,X)|0)+Math.imul(m,G)|0,o=o+Math.imul(m,X)|0,n=n+Math.imul(p,Y)|0,i=(i=i+Math.imul(p,Q)|0)+Math.imul(b,Y)|0,o=o+Math.imul(b,Q)|0;var we=(u+(n=n+Math.imul(c,$)|0)|0)+((8191&(i=(i=i+Math.imul(c,ee)|0)+Math.imul(d,$)|0))<<13)|0;u=((o=o+Math.imul(d,ee)|0)+(i>>>13)|0)+(we>>>26)|0,we&=67108863,n=Math.imul(I,H),i=(i=Math.imul(I,K))+Math.imul(O,H)|0,o=Math.imul(O,K),n=n+Math.imul(E,V)|0,i=(i=i+Math.imul(E,z)|0)+Math.imul(M,V)|0,o=o+Math.imul(M,z)|0,n=n+Math.imul(w,G)|0,i=(i=i+Math.imul(w,X)|0)+Math.imul(_,G)|0,o=o+Math.imul(_,X)|0,n=n+Math.imul(g,Y)|0,i=(i=i+Math.imul(g,Q)|0)+Math.imul(m,Y)|0,o=o+Math.imul(m,Q)|0,n=n+Math.imul(p,$)|0,i=(i=i+Math.imul(p,ee)|0)+Math.imul(b,$)|0,o=o+Math.imul(b,ee)|0;var _e=(u+(n=n+Math.imul(c,re)|0)|0)+((8191&(i=(i=i+Math.imul(c,ne)|0)+Math.imul(d,re)|0))<<13)|0;u=((o=o+Math.imul(d,ne)|0)+(i>>>13)|0)+(_e>>>26)|0,_e&=67108863,n=Math.imul(A,H),i=(i=Math.imul(A,K))+Math.imul(P,H)|0,o=Math.imul(P,K),n=n+Math.imul(I,V)|0,i=(i=i+Math.imul(I,z)|0)+Math.imul(O,V)|0,o=o+Math.imul(O,z)|0,n=n+Math.imul(E,G)|0,i=(i=i+Math.imul(E,X)|0)+Math.imul(M,G)|0,o=o+Math.imul(M,X)|0,n=n+Math.imul(w,Y)|0,i=(i=i+Math.imul(w,Q)|0)+Math.imul(_,Y)|0,o=o+Math.imul(_,Q)|0,n=n+Math.imul(g,$)|0,i=(i=i+Math.imul(g,ee)|0)+Math.imul(m,$)|0,o=o+Math.imul(m,ee)|0,n=n+Math.imul(p,re)|0,i=(i=i+Math.imul(p,ne)|0)+Math.imul(b,re)|0,o=o+Math.imul(b,ne)|0;var Se=(u+(n=n+Math.imul(c,oe)|0)|0)+((8191&(i=(i=i+Math.imul(c,ae)|0)+Math.imul(d,oe)|0))<<13)|0;u=((o=o+Math.imul(d,ae)|0)+(i>>>13)|0)+(Se>>>26)|0,Se&=67108863,n=Math.imul(R,H),i=(i=Math.imul(R,K))+Math.imul(N,H)|0,o=Math.imul(N,K),n=n+Math.imul(A,V)|0,i=(i=i+Math.imul(A,z)|0)+Math.imul(P,V)|0,o=o+Math.imul(P,z)|0,n=n+Math.imul(I,G)|0,i=(i=i+Math.imul(I,X)|0)+Math.imul(O,G)|0,o=o+Math.imul(O,X)|0,n=n+Math.imul(E,Y)|0,i=(i=i+Math.imul(E,Q)|0)+Math.imul(M,Y)|0,o=o+Math.imul(M,Q)|0,n=n+Math.imul(w,$)|0,i=(i=i+Math.imul(w,ee)|0)+Math.imul(_,$)|0,o=o+Math.imul(_,ee)|0,n=n+Math.imul(g,re)|0,i=(i=i+Math.imul(g,ne)|0)+Math.imul(m,re)|0,o=o+Math.imul(m,ne)|0,n=n+Math.imul(p,oe)|0,i=(i=i+Math.imul(p,ae)|0)+Math.imul(b,oe)|0,o=o+Math.imul(b,ae)|0;var Ee=(u+(n=n+Math.imul(c,fe)|0)|0)+((8191&(i=(i=i+Math.imul(c,ue)|0)+Math.imul(d,fe)|0))<<13)|0;u=((o=o+Math.imul(d,ue)|0)+(i>>>13)|0)+(Ee>>>26)|0,Ee&=67108863,n=Math.imul(U,H),i=(i=Math.imul(U,K))+Math.imul(L,H)|0,o=Math.imul(L,K),n=n+Math.imul(R,V)|0,i=(i=i+Math.imul(R,z)|0)+Math.imul(N,V)|0,o=o+Math.imul(N,z)|0,n=n+Math.imul(A,G)|0,i=(i=i+Math.imul(A,X)|0)+Math.imul(P,G)|0,o=o+Math.imul(P,X)|0,n=n+Math.imul(I,Y)|0,i=(i=i+Math.imul(I,Q)|0)+Math.imul(O,Y)|0,o=o+Math.imul(O,Q)|0,n=n+Math.imul(E,$)|0,i=(i=i+Math.imul(E,ee)|0)+Math.imul(M,$)|0,o=o+Math.imul(M,ee)|0,n=n+Math.imul(w,re)|0,i=(i=i+Math.imul(w,ne)|0)+Math.imul(_,re)|0,o=o+Math.imul(_,ne)|0,n=n+Math.imul(g,oe)|0,i=(i=i+Math.imul(g,ae)|0)+Math.imul(m,oe)|0,o=o+Math.imul(m,ae)|0,n=n+Math.imul(p,fe)|0,i=(i=i+Math.imul(p,ue)|0)+Math.imul(b,fe)|0,o=o+Math.imul(b,ue)|0;var Me=(u+(n=n+Math.imul(c,ce)|0)|0)+((8191&(i=(i=i+Math.imul(c,de)|0)+Math.imul(d,ce)|0))<<13)|0;u=((o=o+Math.imul(d,de)|0)+(i>>>13)|0)+(Me>>>26)|0,Me&=67108863,n=Math.imul(j,H),i=(i=Math.imul(j,K))+Math.imul(D,H)|0,o=Math.imul(D,K),n=n+Math.imul(U,V)|0,i=(i=i+Math.imul(U,z)|0)+Math.imul(L,V)|0,o=o+Math.imul(L,z)|0,n=n+Math.imul(R,G)|0,i=(i=i+Math.imul(R,X)|0)+Math.imul(N,G)|0,o=o+Math.imul(N,X)|0,n=n+Math.imul(A,Y)|0,i=(i=i+Math.imul(A,Q)|0)+Math.imul(P,Y)|0,o=o+Math.imul(P,Q)|0,n=n+Math.imul(I,$)|0,i=(i=i+Math.imul(I,ee)|0)+Math.imul(O,$)|0,o=o+Math.imul(O,ee)|0,n=n+Math.imul(E,re)|0,i=(i=i+Math.imul(E,ne)|0)+Math.imul(M,re)|0,o=o+Math.imul(M,ne)|0,n=n+Math.imul(w,oe)|0,i=(i=i+Math.imul(w,ae)|0)+Math.imul(_,oe)|0,o=o+Math.imul(_,ae)|0,n=n+Math.imul(g,fe)|0,i=(i=i+Math.imul(g,ue)|0)+Math.imul(m,fe)|0,o=o+Math.imul(m,ue)|0,n=n+Math.imul(p,ce)|0,i=(i=i+Math.imul(p,de)|0)+Math.imul(b,ce)|0,o=o+Math.imul(b,de)|0;var ke=(u+(n=n+Math.imul(c,pe)|0)|0)+((8191&(i=(i=i+Math.imul(c,be)|0)+Math.imul(d,pe)|0))<<13)|0;u=((o=o+Math.imul(d,be)|0)+(i>>>13)|0)+(ke>>>26)|0,ke&=67108863,n=Math.imul(j,V),i=(i=Math.imul(j,z))+Math.imul(D,V)|0,o=Math.imul(D,z),n=n+Math.imul(U,G)|0,i=(i=i+Math.imul(U,X)|0)+Math.imul(L,G)|0,o=o+Math.imul(L,X)|0,n=n+Math.imul(R,Y)|0,i=(i=i+Math.imul(R,Q)|0)+Math.imul(N,Y)|0,o=o+Math.imul(N,Q)|0,n=n+Math.imul(A,$)|0,i=(i=i+Math.imul(A,ee)|0)+Math.imul(P,$)|0,o=o+Math.imul(P,ee)|0,n=n+Math.imul(I,re)|0,i=(i=i+Math.imul(I,ne)|0)+Math.imul(O,re)|0,o=o+Math.imul(O,ne)|0,n=n+Math.imul(E,oe)|0,i=(i=i+Math.imul(E,ae)|0)+Math.imul(M,oe)|0,o=o+Math.imul(M,ae)|0,n=n+Math.imul(w,fe)|0,i=(i=i+Math.imul(w,ue)|0)+Math.imul(_,fe)|0,o=o+Math.imul(_,ue)|0,n=n+Math.imul(g,ce)|0,i=(i=i+Math.imul(g,de)|0)+Math.imul(m,ce)|0,o=o+Math.imul(m,de)|0;var Ie=(u+(n=n+Math.imul(p,pe)|0)|0)+((8191&(i=(i=i+Math.imul(p,be)|0)+Math.imul(b,pe)|0))<<13)|0;u=((o=o+Math.imul(b,be)|0)+(i>>>13)|0)+(Ie>>>26)|0,Ie&=67108863,n=Math.imul(j,G),i=(i=Math.imul(j,X))+Math.imul(D,G)|0,o=Math.imul(D,X),n=n+Math.imul(U,Y)|0,i=(i=i+Math.imul(U,Q)|0)+Math.imul(L,Y)|0,o=o+Math.imul(L,Q)|0,n=n+Math.imul(R,$)|0,i=(i=i+Math.imul(R,ee)|0)+Math.imul(N,$)|0,o=o+Math.imul(N,ee)|0,n=n+Math.imul(A,re)|0,i=(i=i+Math.imul(A,ne)|0)+Math.imul(P,re)|0,o=o+Math.imul(P,ne)|0,n=n+Math.imul(I,oe)|0,i=(i=i+Math.imul(I,ae)|0)+Math.imul(O,oe)|0,o=o+Math.imul(O,ae)|0,n=n+Math.imul(E,fe)|0,i=(i=i+Math.imul(E,ue)|0)+Math.imul(M,fe)|0,o=o+Math.imul(M,ue)|0,n=n+Math.imul(w,ce)|0,i=(i=i+Math.imul(w,de)|0)+Math.imul(_,ce)|0,o=o+Math.imul(_,de)|0;var Oe=(u+(n=n+Math.imul(g,pe)|0)|0)+((8191&(i=(i=i+Math.imul(g,be)|0)+Math.imul(m,pe)|0))<<13)|0;u=((o=o+Math.imul(m,be)|0)+(i>>>13)|0)+(Oe>>>26)|0,Oe&=67108863,n=Math.imul(j,Y),i=(i=Math.imul(j,Q))+Math.imul(D,Y)|0,o=Math.imul(D,Q),n=n+Math.imul(U,$)|0,i=(i=i+Math.imul(U,ee)|0)+Math.imul(L,$)|0,o=o+Math.imul(L,ee)|0,n=n+Math.imul(R,re)|0,i=(i=i+Math.imul(R,ne)|0)+Math.imul(N,re)|0,o=o+Math.imul(N,ne)|0,n=n+Math.imul(A,oe)|0,i=(i=i+Math.imul(A,ae)|0)+Math.imul(P,oe)|0,o=o+Math.imul(P,ae)|0,n=n+Math.imul(I,fe)|0,i=(i=i+Math.imul(I,ue)|0)+Math.imul(O,fe)|0,o=o+Math.imul(O,ue)|0,n=n+Math.imul(E,ce)|0,i=(i=i+Math.imul(E,de)|0)+Math.imul(M,ce)|0,o=o+Math.imul(M,de)|0;var Te=(u+(n=n+Math.imul(w,pe)|0)|0)+((8191&(i=(i=i+Math.imul(w,be)|0)+Math.imul(_,pe)|0))<<13)|0;u=((o=o+Math.imul(_,be)|0)+(i>>>13)|0)+(Te>>>26)|0,Te&=67108863,n=Math.imul(j,$),i=(i=Math.imul(j,ee))+Math.imul(D,$)|0,o=Math.imul(D,ee),n=n+Math.imul(U,re)|0,i=(i=i+Math.imul(U,ne)|0)+Math.imul(L,re)|0,o=o+Math.imul(L,ne)|0,n=n+Math.imul(R,oe)|0,i=(i=i+Math.imul(R,ae)|0)+Math.imul(N,oe)|0,o=o+Math.imul(N,ae)|0,n=n+Math.imul(A,fe)|0,i=(i=i+Math.imul(A,ue)|0)+Math.imul(P,fe)|0,o=o+Math.imul(P,ue)|0,n=n+Math.imul(I,ce)|0,i=(i=i+Math.imul(I,de)|0)+Math.imul(O,ce)|0,o=o+Math.imul(O,de)|0;var Ae=(u+(n=n+Math.imul(E,pe)|0)|0)+((8191&(i=(i=i+Math.imul(E,be)|0)+Math.imul(M,pe)|0))<<13)|0;u=((o=o+Math.imul(M,be)|0)+(i>>>13)|0)+(Ae>>>26)|0,Ae&=67108863,n=Math.imul(j,re),i=(i=Math.imul(j,ne))+Math.imul(D,re)|0,o=Math.imul(D,ne),n=n+Math.imul(U,oe)|0,i=(i=i+Math.imul(U,ae)|0)+Math.imul(L,oe)|0,o=o+Math.imul(L,ae)|0,n=n+Math.imul(R,fe)|0,i=(i=i+Math.imul(R,ue)|0)+Math.imul(N,fe)|0,o=o+Math.imul(N,ue)|0,n=n+Math.imul(A,ce)|0,i=(i=i+Math.imul(A,de)|0)+Math.imul(P,ce)|0,o=o+Math.imul(P,de)|0;var Pe=(u+(n=n+Math.imul(I,pe)|0)|0)+((8191&(i=(i=i+Math.imul(I,be)|0)+Math.imul(O,pe)|0))<<13)|0;u=((o=o+Math.imul(O,be)|0)+(i>>>13)|0)+(Pe>>>26)|0,Pe&=67108863,n=Math.imul(j,oe),i=(i=Math.imul(j,ae))+Math.imul(D,oe)|0,o=Math.imul(D,ae),n=n+Math.imul(U,fe)|0,i=(i=i+Math.imul(U,ue)|0)+Math.imul(L,fe)|0,o=o+Math.imul(L,ue)|0,n=n+Math.imul(R,ce)|0,i=(i=i+Math.imul(R,de)|0)+Math.imul(N,ce)|0,o=o+Math.imul(N,de)|0;var xe=(u+(n=n+Math.imul(A,pe)|0)|0)+((8191&(i=(i=i+Math.imul(A,be)|0)+Math.imul(P,pe)|0))<<13)|0;u=((o=o+Math.imul(P,be)|0)+(i>>>13)|0)+(xe>>>26)|0,xe&=67108863,n=Math.imul(j,fe),i=(i=Math.imul(j,ue))+Math.imul(D,fe)|0,o=Math.imul(D,ue),n=n+Math.imul(U,ce)|0,i=(i=i+Math.imul(U,de)|0)+Math.imul(L,ce)|0,o=o+Math.imul(L,de)|0;var Re=(u+(n=n+Math.imul(R,pe)|0)|0)+((8191&(i=(i=i+Math.imul(R,be)|0)+Math.imul(N,pe)|0))<<13)|0;u=((o=o+Math.imul(N,be)|0)+(i>>>13)|0)+(Re>>>26)|0,Re&=67108863,n=Math.imul(j,ce),i=(i=Math.imul(j,de))+Math.imul(D,ce)|0,o=Math.imul(D,de);var Ne=(u+(n=n+Math.imul(U,pe)|0)|0)+((8191&(i=(i=i+Math.imul(U,be)|0)+Math.imul(L,pe)|0))<<13)|0;u=((o=o+Math.imul(L,be)|0)+(i>>>13)|0)+(Ne>>>26)|0,Ne&=67108863;var Be=(u+(n=Math.imul(j,pe))|0)+((8191&(i=(i=Math.imul(j,be))+Math.imul(D,pe)|0))<<13)|0;return u=((o=Math.imul(D,be))+(i>>>13)|0)+(Be>>>26)|0,Be&=67108863,f[0]=ye,f[1]=ge,f[2]=me,f[3]=ve,f[4]=we,f[5]=_e,f[6]=Se,f[7]=Ee,f[8]=Me,f[9]=ke,f[10]=Ie,f[11]=Oe,f[12]=Te,f[13]=Ae,f[14]=Pe,f[15]=xe,f[16]=Re,f[17]=Ne,f[18]=Be,0!==u&&(f[19]=u,r.length++),r};function d(e,t,r){return(new p).mulp(e,t,r)}function p(e,t){this.x=e,this.y=t}Math.imul||(c=h),n.prototype.mulTo=function(e,t){var r=this.length+e.length;return 10===this.length&&10===e.length?c(this,e,t):r<63?h(this,e,t):r<1024?function(e,t,r){r.negative=t.negative^e.negative,r.length=e.length+t.length;for(var n=0,i=0,o=0;o<r.length-1;o++){var a=i;i=0;for(var s=67108863&n,f=Math.min(o,t.length-1),u=Math.max(0,o-e.length+1);u<=f;u++){var h=o-u,c=(0|e.words[h])*(0|t.words[u]),d=67108863&c;s=67108863&(d=d+s|0),i+=(a=(a=a+(c/67108864|0)|0)+(d>>>26)|0)>>>26,a&=67108863}r.words[o]=s,n=a,a=i}return 0!==n?r.words[o]=n:r.length--,r.strip()}(this,e,t):d(this,e,t)},p.prototype.makeRBT=function(e){for(var t=new Array(e),r=n.prototype._countBits(e)-1,i=0;i<e;i++)t[i]=this.revBin(i,r,e);return t},p.prototype.revBin=function(e,t,r){if(0===e||e===r-1)return e;for(var n=0,i=0;i<t;i++)n|=(1&e)<<t-i-1,e>>=1;return n},p.prototype.permute=function(e,t,r,n,i,o){for(var a=0;a<o;a++)n[a]=t[e[a]],i[a]=r[e[a]]},p.prototype.transform=function(e,t,r,n,i,o){this.permute(o,e,t,r,n,i);for(var a=1;a<i;a<<=1)for(var s=a<<1,f=Math.cos(2*Math.PI/s),u=Math.sin(2*Math.PI/s),h=0;h<i;h+=s)for(var c=f,d=u,l=0;l<a;l++){var p=r[h+l],b=n[h+l],y=r[h+l+a],g=n[h+l+a],m=c*y-d*g;g=c*g+d*y,y=m,r[h+l]=p+y,n[h+l]=b+g,r[h+l+a]=p-y,n[h+l+a]=b-g,l!==s&&(m=f*c-u*d,d=f*d+u*c,c=m)}},p.prototype.guessLen13b=function(e,t){var r=1|Math.max(t,e),n=1&r,i=0;for(r=r/2|0;r;r>>>=1)i++;return 1<<i+1+n},p.prototype.conjugate=function(e,t,r){if(!(r<=1))for(var n=0;n<r/2;n++){var i=e[n];e[n]=e[r-n-1],e[r-n-1]=i,i=t[n],t[n]=-t[r-n-1],t[r-n-1]=-i}},p.prototype.normalize13b=function(e,t){for(var r=0,n=0;n<t/2;n++){var i=8192*Math.round(e[2*n+1]/t)+Math.round(e[2*n]/t)+r;e[n]=67108863&i,r=i<67108864?0:i/67108864|0}return e},p.prototype.convert13b=function(e,t,r,n){for(var i=0,o=0;o<t;o++)i+=0|e[o],r[2*o]=8191&i,i>>>=13,r[2*o+1]=8191&i,i>>>=13;for(o=2*t;o<n;++o)r[o]=0},p.prototype.stub=function(e){for(var t=new Array(e),r=0;r<e;r++)t[r]=0;return t},p.prototype.mulp=function(e,t,r){var n=2*this.guessLen13b(e.length,t.length),i=this.makeRBT(n),o=this.stub(n),a=new Array(n),s=new Array(n),f=new Array(n),u=new Array(n),h=new Array(n),c=new Array(n),d=r.words;d.length=n,this.convert13b(e.words,e.length,a,n),this.convert13b(t.words,t.length,u,n),this.transform(a,o,s,f,n,i),this.transform(u,o,h,c,n,i);for(var l=0;l<n;l++){var p=s[l]*h[l]-f[l]*c[l];f[l]=s[l]*c[l]+f[l]*h[l],s[l]=p}return this.conjugate(s,f,n),this.transform(s,f,d,o,n,i),this.conjugate(d,o,n),this.normalize13b(d,n),r.negative=e.negative^t.negative,r.length=e.length+t.length,r.strip()},n.prototype.mul=function(e){var t=new n(null);return t.words=new Array(this.length+e.length),this.mulTo(e,t)},n.prototype.mulf=function(e){var t=new n(null);return t.words=new Array(this.length+e.length),d(this,e,t)},n.prototype.imul=function(e){return this.clone().mulTo(e,this)},n.prototype.imuln=function(e){for(var t=0,r=0;r<this.length;r++){var n=(0|this.words[r])*e,i=(67108863&n)+(67108863&t);t>>=26,t+=n/67108864|0,t+=i>>>26,this.words[r]=67108863&i}return 0!==t&&(this.words[r]=t,this.length++),this},n.prototype.muln=function(e){return this.clone().imuln(e)},n.prototype.sqr=function(){return this.mul(this)},n.prototype.isqr=function(){return this.imul(this.clone())},n.prototype.pow=function(e){var t=function(e){for(var t=new Array(e.bitLength()),r=0;r<t.length;r++){var n=r/26|0,i=r%26;t[r]=(e.words[n]&1<<i)>>>i}return t}(e);if(0===t.length)return new n(1);for(var r=this,i=0;i<t.length&&0===t[i];i++,r=r.sqr());if(++i<t.length)for(var o=r.sqr();i<t.length;i++,o=o.sqr())0!==t[i]&&(r=r.mul(o));return r},n.prototype.iushln=function(e){var t,r=e%26,n=(e-r)/26,i=67108863>>>26-r<<26-r;if(0!==r){var o=0;for(t=0;t<this.length;t++){var a=this.words[t]&i,s=(0|this.words[t])-a<<r;this.words[t]=s|o,o=a>>>26-r}o&&(this.words[t]=o,this.length++)}if(0!==n){for(t=this.length-1;t>=0;t--)this.words[t+n]=this.words[t];for(t=0;t<n;t++)this.words[t]=0;this.length+=n}return this.strip()},n.prototype.ishln=function(e){return this.iushln(e)},n.prototype.iushrn=function(e,t,r){var n;n=t?(t-t%26)/26:0;var i=e%26,o=Math.min((e-i)/26,this.length),a=67108863^67108863>>>i<<i,s=r;if(n-=o,n=Math.max(0,n),s){for(var f=0;f<o;f++)s.words[f]=this.words[f];s.length=o}if(0===o);else if(this.length>o)for(this.length-=o,f=0;f<this.length;f++)this.words[f]=this.words[f+o];else this.words[0]=0,this.length=1;var u=0;for(f=this.length-1;f>=0&&(0!==u||f>=n);f--){var h=0|this.words[f];this.words[f]=u<<26-i|h>>>i,u=h&a}return s&&0!==u&&(s.words[s.length++]=u),0===this.length&&(this.words[0]=0,this.length=1),this.strip()},n.prototype.ishrn=function(e,t,r){return this.iushrn(e,t,r)},n.prototype.shln=function(e){return this.clone().ishln(e)},n.prototype.ushln=function(e){return this.clone().iushln(e)},n.prototype.shrn=function(e){return this.clone().ishrn(e)},n.prototype.ushrn=function(e){return this.clone().iushrn(e)},n.prototype.testn=function(e){var t=e%26,r=(e-t)/26,n=1<<t;return!(this.length<=r||!(this.words[r]&n))},n.prototype.imaskn=function(e){var t=e%26,r=(e-t)/26;if(this.length<=r)return this;if(0!==t&&r++,this.length=Math.min(r,this.length),0!==t){var n=67108863^67108863>>>t<<t;this.words[this.length-1]&=n}return this.strip()},n.prototype.maskn=function(e){return this.clone().imaskn(e)},n.prototype.iaddn=function(e){return e<0?this.isubn(-e):0!==this.negative?1===this.length&&(0|this.words[0])<e?(this.words[0]=e-(0|this.words[0]),this.negative=0,this):(this.negative=0,this.isubn(e),this.negative=1,this):this._iaddn(e)},n.prototype._iaddn=function(e){this.words[0]+=e;for(var t=0;t<this.length&&this.words[t]>=67108864;t++)this.words[t]-=67108864,t===this.length-1?this.words[t+1]=1:this.words[t+1]++;return this.length=Math.max(this.length,t+1),this},n.prototype.isubn=function(e){if(e<0)return this.iaddn(-e);if(0!==this.negative)return this.negative=0,this.iaddn(e),this.negative=1,this;if(this.words[0]-=e,1===this.length&&this.words[0]<0)this.words[0]=-this.words[0],this.negative=1;else for(var t=0;t<this.length&&this.words[t]<0;t++)this.words[t]+=67108864,this.words[t+1]-=1;return this.strip()},n.prototype.addn=function(e){return this.clone().iaddn(e)},n.prototype.subn=function(e){return this.clone().isubn(e)},n.prototype.iabs=function(){return this.negative=0,this},n.prototype.abs=function(){return this.clone().iabs()},n.prototype._ishlnsubmul=function(e,t,r){var n,i,o=e.length+r;this._expand(o);var a=0;for(n=0;n<e.length;n++){i=(0|this.words[n+r])+a;var s=(0|e.words[n])*t;a=((i-=67108863&s)>>26)-(s/67108864|0),this.words[n+r]=67108863&i}for(;n<this.length-r;n++)a=(i=(0|this.words[n+r])+a)>>26,this.words[n+r]=67108863&i;if(0===a)return this.strip();for(a=0,n=0;n<this.length;n++)a=(i=-(0|this.words[n])+a)>>26,this.words[n]=67108863&i;return this.negative=1,this.strip()},n.prototype._wordDiv=function(e,t){var r=(this.length,e.length),i=this.clone(),o=e,a=0|o.words[o.length-1];0!=(r=26-this._countBits(a))&&(o=o.ushln(r),i.iushln(r),a=0|o.words[o.length-1]);var s,f=i.length-o.length;if("mod"!==t){(s=new n(null)).length=f+1,s.words=new Array(s.length);for(var u=0;u<s.length;u++)s.words[u]=0}var h=i.clone()._ishlnsubmul(o,1,f);0===h.negative&&(i=h,s&&(s.words[f]=1));for(var c=f-1;c>=0;c--){var d=67108864*(0|i.words[o.length+c])+(0|i.words[o.length+c-1]);for(d=Math.min(d/a|0,67108863),i._ishlnsubmul(o,d,c);0!==i.negative;)d--,i.negative=0,i._ishlnsubmul(o,1,c),i.isZero()||(i.negative^=1);s&&(s.words[c]=d)}return s&&s.strip(),i.strip(),"div"!==t&&0!==r&&i.iushrn(r),{div:s||null,mod:i}},n.prototype.divmod=function(e,t,r){return this.isZero()?{div:new n(0),mod:new n(0)}:0!==this.negative&&0===e.negative?(a=this.neg().divmod(e,t),"mod"!==t&&(i=a.div.neg()),"div"!==t&&(o=a.mod.neg(),r&&0!==o.negative&&o.iadd(e)),{div:i,mod:o}):0===this.negative&&0!==e.negative?(a=this.divmod(e.neg(),t),"mod"!==t&&(i=a.div.neg()),{div:i,mod:a.mod}):0!=(this.negative&e.negative)?(a=this.neg().divmod(e.neg(),t),"div"!==t&&(o=a.mod.neg(),r&&0!==o.negative&&o.isub(e)),{div:a.div,mod:o}):e.length>this.length||this.cmp(e)<0?{div:new n(0),mod:this}:1===e.length?"div"===t?{div:this.divn(e.words[0]),mod:null}:"mod"===t?{div:null,mod:new n(this.modn(e.words[0]))}:{div:this.divn(e.words[0]),mod:new n(this.modn(e.words[0]))}:this._wordDiv(e,t);var i,o,a},n.prototype.div=function(e){return this.divmod(e,"div",!1).div},n.prototype.mod=function(e){return this.divmod(e,"mod",!1).mod},n.prototype.umod=function(e){return this.divmod(e,"mod",!0).mod},n.prototype.divRound=function(e){var t=this.divmod(e);if(t.mod.isZero())return t.div;var r=0!==t.div.negative?t.mod.isub(e):t.mod,n=e.ushrn(1),i=e.andln(1),o=r.cmp(n);return o<0||1===i&&0===o?t.div:0!==t.div.negative?t.div.isubn(1):t.div.iaddn(1)},n.prototype.modn=function(e){for(var t=(1<<26)%e,r=0,n=this.length-1;n>=0;n--)r=(t*r+(0|this.words[n]))%e;return r},n.prototype.idivn=function(e){for(var t=0,r=this.length-1;r>=0;r--){var n=(0|this.words[r])+67108864*t;this.words[r]=n/e|0,t=n%e}return this.strip()},n.prototype.divn=function(e){return this.clone().idivn(e)},n.prototype.egcd=function(e){var t=this,r=e.clone();t=0!==t.negative?t.umod(e):t.clone();for(var i=new n(1),o=new n(0),a=new n(0),s=new n(1),f=0;t.isEven()&&r.isEven();)t.iushrn(1),r.iushrn(1),++f;for(var u=r.clone(),h=t.clone();!t.isZero();){for(var c=0,d=1;0==(t.words[0]&d)&&c<26;++c,d<<=1);if(c>0)for(t.iushrn(c);c-- >0;)(i.isOdd()||o.isOdd())&&(i.iadd(u),o.isub(h)),i.iushrn(1),o.iushrn(1);for(var l=0,p=1;0==(r.words[0]&p)&&l<26;++l,p<<=1);if(l>0)for(r.iushrn(l);l-- >0;)(a.isOdd()||s.isOdd())&&(a.iadd(u),s.isub(h)),a.iushrn(1),s.iushrn(1);t.cmp(r)>=0?(t.isub(r),i.isub(a),o.isub(s)):(r.isub(t),a.isub(i),s.isub(o))}return{a:a,b:s,gcd:r.iushln(f)}},n.prototype._invmp=function(e){var t=this,r=e.clone();t=0!==t.negative?t.umod(e):t.clone();for(var i,o=new n(1),a=new n(0),s=r.clone();t.cmpn(1)>0&&r.cmpn(1)>0;){for(var f=0,u=1;0==(t.words[0]&u)&&f<26;++f,u<<=1);if(f>0)for(t.iushrn(f);f-- >0;)o.isOdd()&&o.iadd(s),o.iushrn(1);for(var h=0,c=1;0==(r.words[0]&c)&&h<26;++h,c<<=1);if(h>0)for(r.iushrn(h);h-- >0;)a.isOdd()&&a.iadd(s),a.iushrn(1);t.cmp(r)>=0?(t.isub(r),o.isub(a)):(r.isub(t),a.isub(o))}return(i=0===t.cmpn(1)?o:a).cmpn(0)<0&&i.iadd(e),i},n.prototype.gcd=function(e){if(this.isZero())return e.abs();if(e.isZero())return this.abs();var t=this.clone(),r=e.clone();t.negative=0,r.negative=0;for(var n=0;t.isEven()&&r.isEven();n++)t.iushrn(1),r.iushrn(1);for(;;){for(;t.isEven();)t.iushrn(1);for(;r.isEven();)r.iushrn(1);var i=t.cmp(r);if(i<0){var o=t;t=r,r=o}else if(0===i||0===r.cmpn(1))break;t.isub(r)}return r.iushln(n)},n.prototype.invm=function(e){return this.egcd(e).a.umod(e)},n.prototype.isEven=function(){return 0==(1&this.words[0])},n.prototype.isOdd=function(){return 1==(1&this.words[0])},n.prototype.andln=function(e){return this.words[0]&e},n.prototype.bincn=function(e){var t=e%26,r=(e-t)/26,n=1<<t;if(this.length<=r)return this._expand(r+1),this.words[r]|=n,this;for(var i=n,o=r;0!==i&&o<this.length;o++){var a=0|this.words[o];i=(a+=i)>>>26,a&=67108863,this.words[o]=a}return 0!==i&&(this.words[o]=i,this.length++),this},n.prototype.isZero=function(){return 1===this.length&&0===this.words[0]},n.prototype.cmpn=function(e){var t,r=e<0;if(0!==this.negative&&!r)return-1;if(0===this.negative&&r)return 1;if(this.strip(),this.length>1)t=1;else{r&&(e=-e);var n=0|this.words[0];t=n===e?0:n<e?-1:1}return 0!==this.negative?0|-t:t},n.prototype.cmp=function(e){if(0!==this.negative&&0===e.negative)return-1;if(0===this.negative&&0!==e.negative)return 1;var t=this.ucmp(e);return 0!==this.negative?0|-t:t},n.prototype.ucmp=function(e){if(this.length>e.length)return 1;if(this.length<e.length)return-1;for(var t=0,r=this.length-1;r>=0;r--){var n=0|this.words[r],i=0|e.words[r];if(n!==i){n<i?t=-1:n>i&&(t=1);break}}return t},n.prototype.gtn=function(e){return 1===this.cmpn(e)},n.prototype.gt=function(e){return 1===this.cmp(e)},n.prototype.gten=function(e){return this.cmpn(e)>=0},n.prototype.gte=function(e){return this.cmp(e)>=0},n.prototype.ltn=function(e){return-1===this.cmpn(e)},n.prototype.lt=function(e){return-1===this.cmp(e)},n.prototype.lten=function(e){return this.cmpn(e)<=0},n.prototype.lte=function(e){return this.cmp(e)<=0},n.prototype.eqn=function(e){return 0===this.cmpn(e)},n.prototype.eq=function(e){return 0===this.cmp(e)},n.red=function(e){return new _(e)},n.prototype.toRed=function(e){return e.convertTo(this)._forceRed(e)},n.prototype.fromRed=function(){return this.red.convertFrom(this)},n.prototype._forceRed=function(e){return this.red=e,this},n.prototype.forceRed=function(e){return this._forceRed(e)},n.prototype.redAdd=function(e){return this.red.add(this,e)},n.prototype.redIAdd=function(e){return this.red.iadd(this,e)},n.prototype.redSub=function(e){return this.red.sub(this,e)},n.prototype.redISub=function(e){return this.red.isub(this,e)},n.prototype.redShl=function(e){return this.red.shl(this,e)},n.prototype.redMul=function(e){return this.red._verify2(this,e),this.red.mul(this,e)},n.prototype.redIMul=function(e){return this.red._verify2(this,e),this.red.imul(this,e)},n.prototype.redSqr=function(){return this.red._verify1(this),this.red.sqr(this)},n.prototype.redISqr=function(){return this.red._verify1(this),this.red.isqr(this)},n.prototype.redSqrt=function(){return 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i=e.words[9];for(t.words[t.length++]=4194303&i,n=10;n<e.length;n++){var o=0|e.words[n];e.words[n-10]=(4194303&o)<<4|i>>>22,i=o}i>>>=22,e.words[n-10]=i,0===i&&e.length>10?e.length-=10:e.length-=9},g.prototype.imulK=function(e){e.words[e.length]=0,e.words[e.length+1]=0,e.length+=2;for(var t=0,r=0;r<e.length;r++){var n=0|e.words[r];t+=977*n,e.words[r]=67108863&t,t=64*n+(t/67108864|0)}return 0===e.words[e.length-1]&&(e.length--,0===e.words[e.length-1]&&e.length--),e},r(m,y),r(v,y),r(w,y),w.prototype.imulK=function(e){for(var t=0,r=0;r<e.length;r++){var n=19*(0|e.words[r])+t,i=67108863&n;n>>>=26,e.words[r]=i,t=n}return 0!==t&&(e.words[e.length++]=t),e},n._prime=function(e){if(b[e])return b[e];var t;if("k256"===e)t=new g;else if("p224"===e)t=new m;else if("p192"===e)t=new v;else{if("p25519"!==e)throw new Error("Unknown prime "+e);t=new w}return b[e]=t,t},_.prototype._verify1=function(e){},_.prototype._verify2=function(e,t){},_.prototype.imod=function(e){return 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o=r[0],a=0,s=0,f=t.bitLength()%26;for(0===f&&(f=26),i=t.length-1;i>=0;i--){for(var u=t.words[i],h=f-1;h>=0;h--){var c=u>>h&1;o!==r[0]&&(o=this.sqr(o)),0!==c||0!==a?(a<<=1,a|=c,(4==++s||0===i&&0===h)&&(o=this.mul(o,r[a]),s=0,a=0)):s=0}f=26}return o},_.prototype.convertTo=function(e){var t=e.umod(this.m);return t===e?t.clone():t},_.prototype.convertFrom=function(e){var t=e.clone();return t.red=null,t},n.mont=function(e){return new S(e)},r(S,_),S.prototype.convertTo=function(e){return this.imod(e.ushln(this.shift))},S.prototype.convertFrom=function(e){var t=this.imod(e.mul(this.rinv));return t.red=null,t},S.prototype.imul=function(e,t){if(e.isZero()||t.isZero())return e.words[0]=0,e.length=1,e;var r=e.imul(t),n=r.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m),i=r.isub(n).iushrn(this.shift),o=i;return i.cmp(this.m)>=0?o=i.isub(this.m):i.cmpn(0)<0&&(o=i.iadd(this.m)),o._forceRed(this)},S.prototype.mul=function(e,t){if(e.isZero()||t.isZero())return new 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r=e._getDoubles(),n=ti(t,1,this._bitLength),i=(1<<r.step+1)-(r.step%2==0?2:1);i/=3;for(var o=[],a=0;a<n.length;a+=r.step){var s=0;for(t=a+r.step-1;t>=a;t--)s=(s<<1)+n[t];o.push(s)}for(var f=this.jpoint(null,null,null),u=this.jpoint(null,null,null),h=i;h>0;h--){for(a=0;a<o.length;a++)(s=o[a])===h?u=u.mixedAdd(r.points[a]):s===-h&&(u=u.mixedAdd(r.points[a].neg()));f=f.add(u)}return f.toP()},ni.prototype._wnafMul=function(e,t){var r=4,n=e._getNAFPoints(r);r=n.wnd;for(var i=n.points,o=ti(t,r,this._bitLength),a=this.jpoint(null,null,null),s=o.length-1;s>=0;s--){for(t=0;s>=0&&0===o[s];s--)t++;if(s>=0&&t++,a=a.dblp(t),s<0)break;var f=o[s];a="affine"===e.type?f>0?a.mixedAdd(i[f-1>>1]):a.mixedAdd(i[-f-1>>1].neg()):f>0?a.add(i[f-1>>1]):a.add(i[-f-1>>1].neg())}return"affine"===e.type?a.toP():a},ni.prototype._wnafMulAdd=function(e,t,r,n,i){for(var o=this._wnafT1,a=this._wnafT2,s=this._wnafT3,f=0,u=0;u<n;u++){var h=(E=t[u])._getNAFPoints(e);o[u]=h.wnd,a[u]=h.points}for(u=n-1;u>=1;u-=2){var c=u-1,d=u;if(1===o[c]&&1===o[d]){var l=[t[c],null,null,t[d]];0===t[c].y.cmp(t[d].y)?(l[1]=t[c].add(t[d]),l[2]=t[c].toJ().mixedAdd(t[d].neg())):0===t[c].y.cmp(t[d].y.redNeg())?(l[1]=t[c].toJ().mixedAdd(t[d]),l[2]=t[c].add(t[d].neg())):(l[1]=t[c].toJ().mixedAdd(t[d]),l[2]=t[c].toJ().mixedAdd(t[d].neg()));var p=[-3,-1,-5,-7,0,7,5,1,3],b=ri(r[c],r[d]);f=Math.max(b[0].length,f),s[c]=new Array(f),s[d]=new Array(f);for(var y=0;y<f;y++){var g=0|b[0][y],m=0|b[1][y];s[c][y]=p[3*(g+1)+(m+1)],s[d][y]=0,a[c]=l}}else s[c]=ti(r[c],o[c],this._bitLength),s[d]=ti(r[d],o[d],this._bitLength),f=Math.max(s[c].length,f),f=Math.max(s[d].length,f)}var v=this.jpoint(null,null,null),w=this._wnafT4;for(u=f;u>=0;u--){for(var _=0;u>=0;){var S=!0;for(y=0;y<n;y++)w[y]=0|s[y][u],0!==w[y]&&(S=!1);if(!S)break;_++,u--}if(u>=0&&_++,v=v.dblp(_),u<0)break;for(y=0;y<n;y++){var E,M=w[y];0!==M&&(M>0?E=a[y][M-1>>1]:M<0&&(E=a[y][-M-1>>1].neg()),v="affine"===E.type?v.mixedAdd(E):v.add(E))}}for(u=0;u<n;u++)a[u]=null;return 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t.naf=this._getNAFPoints(8),t.doubles=this._getDoubles(4,e),t.beta=this._getBeta(),this.precomputed=t,this},ii.prototype._hasDoubles=function(e){if(!this.precomputed)return!1;var t=this.precomputed.doubles;return!!t&&t.points.length>=Math.ceil((e.bitLength()+1)/t.step)},ii.prototype._getDoubles=function(e,t){if(this.precomputed&&this.precomputed.doubles)return this.precomputed.doubles;for(var r=[this],n=this,i=0;i<t;i+=e){for(var o=0;o<e;o++)n=n.dbl();r.push(n)}return{step:e,points:r}},ii.prototype._getNAFPoints=function(e){if(this.precomputed&&this.precomputed.naf)return this.precomputed.naf;for(var t=[this],r=(1<<e)-1,n=1===r?null:this.dbl(),i=1;i<r;i++)t[i]=t[i-1].add(n);return{wnd:e,points:t}},ii.prototype._getBeta=function(){return null},ii.prototype.dblp=function(e){for(var t=this,r=0;r<e;r++)t=t.dbl();return t};var oi;function ai(e){ei.call(this,"short",e),this.a=new Hn(e.a,16).toRed(this.red),this.b=new Hn(e.b,16).toRed(this.red),this.tinv=this.two.redInvm(),this.zeroA=0===this.a.fromRed().cmpn(0),this.threeA=0===this.a.fromRed().sub(this.p).cmpn(-3),this.endo=this._getEndomorphism(e),this._endoWnafT1=new Array(4),this._endoWnafT2=new Array(4)}function si(e,t,r,n){ei.BasePoint.call(this,e,"affine"),null===t&&null===r?(this.x=null,this.y=null,this.inf=!0):(this.x=new Hn(t,16),this.y=new Hn(r,16),n&&(this.x.forceRed(this.curve.red),this.y.forceRed(this.curve.red)),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.y.red||(this.y=this.y.toRed(this.curve.red)),this.inf=!1)}function fi(e,t,r,n){ei.BasePoint.call(this,e,"jacobian"),null===t&&null===r&&null===n?(this.x=this.curve.one,this.y=this.curve.one,this.z=new Hn(0)):(this.x=new Hn(t,16),this.y=new Hn(r,16),this.z=new Hn(n,16)),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.y.red||(this.y=this.y.toRed(this.curve.red)),this.z.red||(this.z=this.z.toRed(this.curve.red)),this.zOne=this.z===this.curve.one}Xn.assert,T(ai,ei),oi=ai,ai.prototype._getEndomorphism=function(e){if(this.zeroA&&this.g&&this.n&&1===this.p.modn(3)){var t,r;if(e.beta)t=new Hn(e.beta,16).toRed(this.red);else{var n=this._getEndoRoots(this.p);t=(t=n[0].cmp(n[1])<0?n[0]:n[1]).toRed(this.red)}if(e.lambda)r=new Hn(e.lambda,16);else{var i=this._getEndoRoots(this.n);r=0===this.g.mul(i[0]).x.cmp(this.g.x.redMul(t))?i[0]:i[1]}return{beta:t,lambda:r,basis:e.basis?e.basis.map((function(e){return{a:new Hn(e.a,16),b:new Hn(e.b,16)}})):this._getEndoBasis(r)}}},ai.prototype._getEndoRoots=function(e){var t=e===this.p?this.red:Hn.mont(e),r=new Hn(2).toRed(t).redInvm(),n=r.redNeg(),i=new Hn(3).toRed(t).redNeg().redSqrt().redMul(r);return[n.redAdd(i).fromRed(),n.redSub(i).fromRed()]},ai.prototype._getEndoBasis=function(e){for(var t,r,n,i,o,a,s,f,u,h=this.n.ushrn(Math.floor(this.n.bitLength()/2)),c=e,d=this.n.clone(),l=new Hn(1),p=new Hn(0),b=new Hn(0),y=new Hn(1),g=0;0!==c.cmpn(0);){var m=d.div(c);f=d.sub(m.mul(c)),u=b.sub(m.mul(l));var v=y.sub(m.mul(p));if(!n&&f.cmp(h)<0)t=s.neg(),r=l,n=f.neg(),i=u;else if(n&&2==++g)break;s=f,d=c,c=f,b=l,l=u,y=p,p=v}o=f.neg(),a=u;var w=n.sqr().add(i.sqr());return o.sqr().add(a.sqr()).cmp(w)>=0&&(o=t,a=r),n.negative&&(n=n.neg(),i=i.neg()),o.negative&&(o=o.neg(),a=a.neg()),[{a:n,b:i},{a:o,b:a}]},ai.prototype._endoSplit=function(e){var t=this.endo.basis,r=t[0],n=t[1],i=n.b.mul(e).divRound(this.n),o=r.b.neg().mul(e).divRound(this.n),a=i.mul(r.a),s=o.mul(n.a),f=i.mul(r.b),u=o.mul(n.b);return{k1:e.sub(a).sub(s),k2:f.add(u).neg()}},ai.prototype.pointFromX=function(e,t){(e=new Hn(e,16)).red||(e=e.toRed(this.red));var r=e.redSqr().redMul(e).redIAdd(e.redMul(this.a)).redIAdd(this.b),n=r.redSqrt();if(0!==n.redSqr().redSub(r).cmp(this.zero))throw new Error("invalid point");var i=n.fromRed().isOdd();return(t&&!i||!t&&i)&&(n=n.redNeg()),this.point(e,n)},ai.prototype.validate=function(e){if(e.inf)return!0;var t=e.x,r=e.y,n=this.a.redMul(t),i=t.redSqr().redMul(t).redIAdd(n).redIAdd(this.b);return 0===r.redSqr().redISub(i).cmpn(0)},ai.prototype._endoWnafMulAdd=function(e,t,r){for(var n=this._endoWnafT1,i=this._endoWnafT2,o=0;o<e.length;o++){var a=this._endoSplit(t[o]),s=e[o],f=s._getBeta();a.k1.negative&&(a.k1.ineg(),s=s.neg(!0)),a.k2.negative&&(a.k2.ineg(),f=f.neg(!0)),n[2*o]=s,n[2*o+1]=f,i[2*o]=a.k1,i[2*o+1]=a.k2}for(var u=this._wnafMulAdd(1,n,i,2*o,r),h=0;h<2*o;h++)n[h]=null,i[h]=null;return u},T(si,ei.BasePoint),ai.prototype.point=function(e,t,r){return new si(this,e,t,r)},ai.prototype.pointFromJSON=function(e,t){return si.fromJSON(this,e,t)},si.prototype._getBeta=function(){if(this.curve.endo){var e=this.precomputed;if(e&&e.beta)return e.beta;var t=this.curve.point(this.x.redMul(this.curve.endo.beta),this.y);if(e){var r=this.curve,n=function(e){return r.point(e.x.redMul(r.endo.beta),e.y)};e.beta=t,t.precomputed={beta:null,naf:e.naf&&{wnd:e.naf.wnd,points:e.naf.points.map(n)},doubles:e.doubles&&{step:e.doubles.step,points:e.doubles.points.map(n)}}}return t}},si.prototype.toJSON=function(){return this.precomputed?[this.x,this.y,this.precomputed&&{doubles:this.precomputed.doubles&&{step:this.precomputed.doubles.step,points:this.precomputed.doubles.points.slice(1)},naf:this.precomputed.naf&&{wnd:this.precomputed.naf.wnd,points:this.precomputed.naf.points.slice(1)}}]:[this.x,this.y]},si.fromJSON=function(e,t,r){"string"==typeof t&&(t=JSON.parse(t));var n=e.point(t[0],t[1],r);if(!t[2])return n;function i(t){return e.point(t[0],t[1],r)}var o=t[2];return n.precomputed={beta:null,doubles:o.doubles&&{step:o.doubles.step,points:[n].concat(o.doubles.points.map(i))},naf:o.naf&&{wnd:o.naf.wnd,points:[n].concat(o.naf.points.map(i))}},n},si.prototype.inspect=function(){return this.isInfinity()?"<EC Point Infinity>":"<EC Point x: "+this.x.fromRed().toString(16,2)+" y: "+this.y.fromRed().toString(16,2)+">"},si.prototype.isInfinity=function(){return this.inf},si.prototype.add=function(e){if(this.inf)return e;if(e.inf)return this;if(this.eq(e))return this.dbl();if(this.neg().eq(e))return this.curve.point(null,null);if(0===this.x.cmp(e.x))return this.curve.point(null,null);var t=this.y.redSub(e.y);0!==t.cmpn(0)&&(t=t.redMul(this.x.redSub(e.x).redInvm()));var r=t.redSqr().redISub(this.x).redISub(e.x),n=t.redMul(this.x.redSub(r)).redISub(this.y);return this.curve.point(r,n)},si.prototype.dbl=function(){if(this.inf)return this;var e=this.y.redAdd(this.y);if(0===e.cmpn(0))return this.curve.point(null,null);var t=this.curve.a,r=this.x.redSqr(),n=e.redInvm(),i=r.redAdd(r).redIAdd(r).redIAdd(t).redMul(n),o=i.redSqr().redISub(this.x.redAdd(this.x)),a=i.redMul(this.x.redSub(o)).redISub(this.y);return this.curve.point(o,a)},si.prototype.getX=function(){return this.x.fromRed()},si.prototype.getY=function(){return this.y.fromRed()},si.prototype.mul=function(e){return e=new Hn(e,16),this.isInfinity()?this:this._hasDoubles(e)?this.curve._fixedNafMul(this,e):this.curve.endo?this.curve._endoWnafMulAdd([this],[e]):this.curve._wnafMul(this,e)},si.prototype.mulAdd=function(e,t,r){var n=[this,t],i=[e,r];return this.curve.endo?this.curve._endoWnafMulAdd(n,i):this.curve._wnafMulAdd(1,n,i,2)},si.prototype.jmulAdd=function(e,t,r){var n=[this,t],i=[e,r];return this.curve.endo?this.curve._endoWnafMulAdd(n,i,!0):this.curve._wnafMulAdd(1,n,i,2,!0)},si.prototype.eq=function(e){return this===e||this.inf===e.inf&&(this.inf||0===this.x.cmp(e.x)&&0===this.y.cmp(e.y))},si.prototype.neg=function(e){if(this.inf)return this;var t=this.curve.point(this.x,this.y.redNeg());if(e&&this.precomputed){var r=this.precomputed,n=function(e){return e.neg()};t.precomputed={naf:r.naf&&{wnd:r.naf.wnd,points:r.naf.points.map(n)},doubles:r.doubles&&{step:r.doubles.step,points:r.doubles.points.map(n)}}}return t},si.prototype.toJ=function(){return this.inf?this.curve.jpoint(null,null,null):this.curve.jpoint(this.x,this.y,this.curve.one)},T(fi,ei.BasePoint),ai.prototype.jpoint=function(e,t,r){return new fi(this,e,t,r)},fi.prototype.toP=function(){if(this.isInfinity())return this.curve.point(null,null);var e=this.z.redInvm(),t=e.redSqr(),r=this.x.redMul(t),n=this.y.redMul(t).redMul(e);return this.curve.point(r,n)},fi.prototype.neg=function(){return this.curve.jpoint(this.x,this.y.redNeg(),this.z)},fi.prototype.add=function(e){if(this.isInfinity())return e;if(e.isInfinity())return this;var t=e.z.redSqr(),r=this.z.redSqr(),n=this.x.redMul(t),i=e.x.redMul(r),o=this.y.redMul(t.redMul(e.z)),a=e.y.redMul(r.redMul(this.z)),s=n.redSub(i),f=o.redSub(a);if(0===s.cmpn(0))return 0!==f.cmpn(0)?this.curve.jpoint(null,null,null):this.dbl();var u=s.redSqr(),h=u.redMul(s),c=n.redMul(u),d=f.redSqr().redIAdd(h).redISub(c).redISub(c),l=f.redMul(c.redISub(d)).redISub(o.redMul(h)),p=this.z.redMul(e.z).redMul(s);return this.curve.jpoint(d,l,p)},fi.prototype.mixedAdd=function(e){if(this.isInfinity())return e.toJ();if(e.isInfinity())return this;var t=this.z.redSqr(),r=this.x,n=e.x.redMul(t),i=this.y,o=e.y.redMul(t).redMul(this.z),a=r.redSub(n),s=i.redSub(o);if(0===a.cmpn(0))return 0!==s.cmpn(0)?this.curve.jpoint(null,null,null):this.dbl();var f=a.redSqr(),u=f.redMul(a),h=r.redMul(f),c=s.redSqr().redIAdd(u).redISub(h).redISub(h),d=s.redMul(h.redISub(c)).redISub(i.redMul(u)),l=this.z.redMul(a);return this.curve.jpoint(c,d,l)},fi.prototype.dblp=function(e){if(0===e)return this;if(this.isInfinity())return this;if(!e)return this.dbl();if(this.curve.zeroA||this.curve.threeA){for(var t=this,r=0;r<e;r++)t=t.dbl();return t}var n=this.curve.a,i=this.curve.tinv,o=this.x,a=this.y,s=this.z,f=s.redSqr().redSqr(),u=a.redAdd(a);for(r=0;r<e;r++){var h=o.redSqr(),c=u.redSqr(),d=c.redSqr(),l=h.redAdd(h).redIAdd(h).redIAdd(n.redMul(f)),p=o.redMul(c),b=l.redSqr().redISub(p.redAdd(p)),y=p.redISub(b),g=l.redMul(y);g=g.redIAdd(g).redISub(d);var m=u.redMul(s);r+1<e&&(f=f.redMul(d)),o=b,s=m,u=g}return this.curve.jpoint(o,u.redMul(i),s)},fi.prototype.dbl=function(){return this.isInfinity()?this:this.curve.zeroA?this._zeroDbl():this.curve.threeA?this._threeDbl():this._dbl()},fi.prototype._zeroDbl=function(){var e,t,r;if(this.zOne){var n=this.x.redSqr(),i=this.y.redSqr(),o=i.redSqr(),a=this.x.redAdd(i).redSqr().redISub(n).redISub(o);a=a.redIAdd(a);var s=n.redAdd(n).redIAdd(n),f=s.redSqr().redISub(a).redISub(a),u=o.redIAdd(o);u=(u=u.redIAdd(u)).redIAdd(u),e=f,t=s.redMul(a.redISub(f)).redISub(u),r=this.y.redAdd(this.y)}else{var h=this.x.redSqr(),c=this.y.redSqr(),d=c.redSqr(),l=this.x.redAdd(c).redSqr().redISub(h).redISub(d);l=l.redIAdd(l);var p=h.redAdd(h).redIAdd(h),b=p.redSqr(),y=d.redIAdd(d);y=(y=y.redIAdd(y)).redIAdd(y),e=b.redISub(l).redISub(l),t=p.redMul(l.redISub(e)).redISub(y),r=(r=this.y.redMul(this.z)).redIAdd(r)}return this.curve.jpoint(e,t,r)},fi.prototype._threeDbl=function(){var e,t,r;if(this.zOne){var n=this.x.redSqr(),i=this.y.redSqr(),o=i.redSqr(),a=this.x.redAdd(i).redSqr().redISub(n).redISub(o);a=a.redIAdd(a);var s=n.redAdd(n).redIAdd(n).redIAdd(this.curve.a),f=s.redSqr().redISub(a).redISub(a);e=f;var u=o.redIAdd(o);u=(u=u.redIAdd(u)).redIAdd(u),t=s.redMul(a.redISub(f)).redISub(u),r=this.y.redAdd(this.y)}else{var h=this.z.redSqr(),c=this.y.redSqr(),d=this.x.redMul(c),l=this.x.redSub(h).redMul(this.x.redAdd(h));l=l.redAdd(l).redIAdd(l);var p=d.redIAdd(d),b=(p=p.redIAdd(p)).redAdd(p);e=l.redSqr().redISub(b),r=this.y.redAdd(this.z).redSqr().redISub(c).redISub(h);var y=c.redSqr();y=(y=(y=y.redIAdd(y)).redIAdd(y)).redIAdd(y),t=l.redMul(p.redISub(e)).redISub(y)}return this.curve.jpoint(e,t,r)},fi.prototype._dbl=function(){var e=this.curve.a,t=this.x,r=this.y,n=this.z,i=n.redSqr().redSqr(),o=t.redSqr(),a=r.redSqr(),s=o.redAdd(o).redIAdd(o).redIAdd(e.redMul(i)),f=t.redAdd(t),u=(f=f.redIAdd(f)).redMul(a),h=s.redSqr().redISub(u.redAdd(u)),c=u.redISub(h),d=a.redSqr();d=(d=(d=d.redIAdd(d)).redIAdd(d)).redIAdd(d);var l=s.redMul(c).redISub(d),p=r.redAdd(r).redMul(n);return this.curve.jpoint(h,l,p)},fi.prototype.trpl=function(){if(!this.curve.zeroA)return this.dbl().add(this);var e=this.x.redSqr(),t=this.y.redSqr(),r=this.z.redSqr(),n=t.redSqr(),i=e.redAdd(e).redIAdd(e),o=i.redSqr(),a=this.x.redAdd(t).redSqr().redISub(e).redISub(n),s=(a=(a=(a=a.redIAdd(a)).redAdd(a).redIAdd(a)).redISub(o)).redSqr(),f=n.redIAdd(n);f=(f=(f=f.redIAdd(f)).redIAdd(f)).redIAdd(f);var u=i.redIAdd(a).redSqr().redISub(o).redISub(s).redISub(f),h=t.redMul(u);h=(h=h.redIAdd(h)).redIAdd(h);var c=this.x.redMul(s).redISub(h);c=(c=c.redIAdd(c)).redIAdd(c);var d=this.y.redMul(u.redMul(f.redISub(u)).redISub(a.redMul(s)));d=(d=(d=d.redIAdd(d)).redIAdd(d)).redIAdd(d);var l=this.z.redAdd(a).redSqr().redISub(r).redISub(s);return this.curve.jpoint(c,d,l)},fi.prototype.mul=function(e,t){return e=new Hn(e,t),this.curve._wnafMul(this,e)},fi.prototype.eq=function(e){if("affine"===e.type)return this.eq(e.toJ());if(this===e)return!0;var t=this.z.redSqr(),r=e.z.redSqr();if(0!==this.x.redMul(r).redISub(e.x.redMul(t)).cmpn(0))return!1;var n=t.redMul(this.z),i=r.redMul(e.z);return 0===this.y.redMul(i).redISub(e.y.redMul(n)).cmpn(0)},fi.prototype.eqXToP=function(e){var t=this.z.redSqr(),r=e.toRed(this.curve.red).redMul(t);if(0===this.x.cmp(r))return!0;for(var n=e.clone(),i=this.curve.redN.redMul(t);;){if(n.iadd(this.curve.n),n.cmp(this.curve.p)>=0)return!1;if(r.redIAdd(i),0===this.x.cmp(r))return!0}},fi.prototype.inspect=function(){return this.isInfinity()?"<EC JPoint Infinity>":"<EC JPoint x: "+this.x.toString(16,2)+" y: "+this.y.toString(16,2)+" z: "+this.z.toString(16,2)+">"},fi.prototype.isInfinity=function(){return 0===this.z.cmpn(0)};var ui;function hi(e){ei.call(this,"mont",e),this.a=new Hn(e.a,16).toRed(this.red),this.b=new Hn(e.b,16).toRed(this.red),this.i4=new Hn(4).toRed(this.red).redInvm(),this.two=new Hn(2).toRed(this.red),this.a24=this.i4.redMul(this.a.redAdd(this.two))}function ci(e,t,r){ei.BasePoint.call(this,e,"projective"),null===t&&null===r?(this.x=this.curve.one,this.z=this.curve.zero):(this.x=new Hn(t,16),this.z=new Hn(r,16),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.z.red||(this.z=this.z.toRed(this.curve.red)))}T(hi,ei),ui=hi,hi.prototype.validate=function(e){var t=e.normalize().x,r=t.redSqr(),n=r.redMul(t).redAdd(r.redMul(this.a)).redAdd(t);return 0===n.redSqrt().redSqr().cmp(n)},T(ci,ei.BasePoint),hi.prototype.decodePoint=function(e,t){return this.point(Xn.toArray(e,t),1)},hi.prototype.point=function(e,t){return new ci(this,e,t)},hi.prototype.pointFromJSON=function(e){return ci.fromJSON(this,e)},ci.prototype.precompute=function(){},ci.prototype._encode=function(){return this.getX().toArray("be",this.curve.p.byteLength())},ci.fromJSON=function(e,t){return new ci(e,t[0],t[1]||e.one)},ci.prototype.inspect=function(){return this.isInfinity()?"<EC Point Infinity>":"<EC Point x: "+this.x.fromRed().toString(16,2)+" z: "+this.z.fromRed().toString(16,2)+">"},ci.prototype.isInfinity=function(){return 0===this.z.cmpn(0)},ci.prototype.dbl=function(){var e=this.x.redAdd(this.z).redSqr(),t=this.x.redSub(this.z).redSqr(),r=e.redSub(t),n=e.redMul(t),i=r.redMul(t.redAdd(this.curve.a24.redMul(r)));return this.curve.point(n,i)},ci.prototype.add=function(){throw new Error("Not supported on Montgomery curve")},ci.prototype.diffAdd=function(e,t){var r=this.x.redAdd(this.z),n=this.x.redSub(this.z),i=e.x.redAdd(e.z),o=e.x.redSub(e.z).redMul(r),a=i.redMul(n),s=t.z.redMul(o.redAdd(a).redSqr()),f=t.x.redMul(o.redISub(a).redSqr());return this.curve.point(s,f)},ci.prototype.mul=function(e){for(var t=e.clone(),r=this,n=this.curve.point(null,null),i=[];0!==t.cmpn(0);t.iushrn(1))i.push(t.andln(1));for(var o=i.length-1;o>=0;o--)0===i[o]?(r=r.diffAdd(n,this),n=n.dbl()):(n=r.diffAdd(n,this),r=r.dbl());return n},ci.prototype.mulAdd=function(){throw new Error("Not supported on Montgomery curve")},ci.prototype.jumlAdd=function(){throw new Error("Not supported on Montgomery curve")},ci.prototype.eq=function(e){return 0===this.getX().cmp(e.getX())},ci.prototype.normalize=function(){return this.x=this.x.redMul(this.z.redInvm()),this.z=this.curve.one,this},ci.prototype.getX=function(){return this.normalize(),this.x.fromRed()};var di;function li(e){this.twisted=1!=(0|e.a),this.mOneA=this.twisted&&-1==(0|e.a),this.extended=this.mOneA,ei.call(this,"edwards",e),this.a=new Hn(e.a,16).umod(this.red.m),this.a=this.a.toRed(this.red),this.c=new Hn(e.c,16).toRed(this.red),this.c2=this.c.redSqr(),this.d=new Hn(e.d,16).toRed(this.red),this.dd=this.d.redAdd(this.d),this.oneC=1==(0|e.c)}function pi(e,t,r,n,i){ei.BasePoint.call(this,e,"projective"),null===t&&null===r&&null===n?(this.x=this.curve.zero,this.y=this.curve.one,this.z=this.curve.one,this.t=this.curve.zero,this.zOne=!0):(this.x=new Hn(t,16),this.y=new Hn(r,16),this.z=n?new Hn(n,16):this.curve.one,this.t=i&&new Hn(i,16),this.x.red||(this.x=this.x.toRed(this.curve.red)),this.y.red||(this.y=this.y.toRed(this.curve.red)),this.z.red||(this.z=this.z.toRed(this.curve.red)),this.t&&!this.t.red&&(this.t=this.t.toRed(this.curve.red)),this.zOne=this.z===this.curve.one,this.curve.extended&&!this.t&&(this.t=this.x.redMul(this.y),this.zOne||(this.t=this.t.redMul(this.z.redInvm()))))}Xn.assert,T(li,ei),di=li,li.prototype._mulA=function(e){return this.mOneA?e.redNeg():this.a.redMul(e)},li.prototype._mulC=function(e){return this.oneC?e:this.c.redMul(e)},li.prototype.jpoint=function(e,t,r,n){return this.point(e,t,r,n)},li.prototype.pointFromX=function(e,t){(e=new Hn(e,16)).red||(e=e.toRed(this.red));var r=e.redSqr(),n=this.c2.redSub(this.a.redMul(r)),i=this.one.redSub(this.c2.redMul(this.d).redMul(r)),o=n.redMul(i.redInvm()),a=o.redSqrt();if(0!==a.redSqr().redSub(o).cmp(this.zero))throw new Error("invalid point");var s=a.fromRed().isOdd();return(t&&!s||!t&&s)&&(a=a.redNeg()),this.point(e,a)},li.prototype.pointFromY=function(e,t){(e=new Hn(e,16)).red||(e=e.toRed(this.red));var r=e.redSqr(),n=r.redSub(this.c2),i=r.redMul(this.d).redMul(this.c2).redSub(this.a),o=n.redMul(i.redInvm());if(0===o.cmp(this.zero)){if(t)throw new Error("invalid point");return this.point(this.zero,e)}var a=o.redSqrt();if(0!==a.redSqr().redSub(o).cmp(this.zero))throw new Error("invalid point");return a.fromRed().isOdd()!==t&&(a=a.redNeg()),this.point(a,e)},li.prototype.validate=function(e){if(e.isInfinity())return!0;e.normalize();var t=e.x.redSqr(),r=e.y.redSqr(),n=t.redMul(this.a).redAdd(r),i=this.c2.redMul(this.one.redAdd(this.d.redMul(t).redMul(r)));return 0===n.cmp(i)},T(pi,ei.BasePoint),li.prototype.pointFromJSON=function(e){return pi.fromJSON(this,e)},li.prototype.point=function(e,t,r,n){return new pi(this,e,t,r,n)},pi.fromJSON=function(e,t){return new pi(e,t[0],t[1],t[2])},pi.prototype.inspect=function(){return this.isInfinity()?"<EC Point Infinity>":"<EC Point x: "+this.x.fromRed().toString(16,2)+" y: "+this.y.fromRed().toString(16,2)+" z: "+this.z.fromRed().toString(16,2)+">"},pi.prototype.isInfinity=function(){return 0===this.x.cmpn(0)&&(0===this.y.cmp(this.z)||this.zOne&&0===this.y.cmp(this.curve.c))},pi.prototype._extDbl=function(){var e=this.x.redSqr(),t=this.y.redSqr(),r=this.z.redSqr();r=r.redIAdd(r);var n=this.curve._mulA(e),i=this.x.redAdd(this.y).redSqr().redISub(e).redISub(t),o=n.redAdd(t),a=o.redSub(r),s=n.redSub(t),f=i.redMul(a),u=o.redMul(s),h=i.redMul(s),c=a.redMul(o);return this.curve.point(f,u,c,h)},pi.prototype._projDbl=function(){var e,t,r,n=this.x.redAdd(this.y).redSqr(),i=this.x.redSqr(),o=this.y.redSqr();if(this.curve.twisted){var a=(u=this.curve._mulA(i)).redAdd(o);if(this.zOne)e=n.redSub(i).redSub(o).redMul(a.redSub(this.curve.two)),t=a.redMul(u.redSub(o)),r=a.redSqr().redSub(a).redSub(a);else{var s=this.z.redSqr(),f=a.redSub(s).redISub(s);e=n.redSub(i).redISub(o).redMul(f),t=a.redMul(u.redSub(o)),r=a.redMul(f)}}else{var u=i.redAdd(o);s=this.curve._mulC(this.z).redSqr(),f=u.redSub(s).redSub(s),e=this.curve._mulC(n.redISub(u)).redMul(f),t=this.curve._mulC(u).redMul(i.redISub(o)),r=u.redMul(f)}return this.curve.point(e,t,r)},pi.prototype.dbl=function(){return this.isInfinity()?this:this.curve.extended?this._extDbl():this._projDbl()},pi.prototype._extAdd=function(e){var t=this.y.redSub(this.x).redMul(e.y.redSub(e.x)),r=this.y.redAdd(this.x).redMul(e.y.redAdd(e.x)),n=this.t.redMul(this.curve.dd).redMul(e.t),i=this.z.redMul(e.z.redAdd(e.z)),o=r.redSub(t),a=i.redSub(n),s=i.redAdd(n),f=r.redAdd(t),u=o.redMul(a),h=s.redMul(f),c=o.redMul(f),d=a.redMul(s);return this.curve.point(u,h,d,c)},pi.prototype._projAdd=function(e){var t,r,n=this.z.redMul(e.z),i=n.redSqr(),o=this.x.redMul(e.x),a=this.y.redMul(e.y),s=this.curve.d.redMul(o).redMul(a),f=i.redSub(s),u=i.redAdd(s),h=this.x.redAdd(this.y).redMul(e.x.redAdd(e.y)).redISub(o).redISub(a),c=n.redMul(f).redMul(h);return this.curve.twisted?(t=n.redMul(u).redMul(a.redSub(this.curve._mulA(o))),r=f.redMul(u)):(t=n.redMul(u).redMul(a.redSub(o)),r=this.curve._mulC(f).redMul(u)),this.curve.point(c,t,r)},pi.prototype.add=function(e){return this.isInfinity()?e:e.isInfinity()?this:this.curve.extended?this._extAdd(e):this._projAdd(e)},pi.prototype.mul=function(e){return 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h+=(c=c+n>>>0)<t?1:0,h+=(c=c+o>>>0)<o?1:0,h+=(c=c+s>>>0)<s?1:0,e+r+i+a+f+(h+=(c=c+u>>>0)<u?1:0)>>>0},gi.sum64_5_lo=function(e,t,r,n,i,o,a,s,f,u){return t+n+o+s+u>>>0},gi.rotr64_hi=function(e,t,r){return(t<<32-r|e>>>r)>>>0},gi.rotr64_lo=function(e,t,r){return(e<<32-r|t>>>r)>>>0},gi.shr64_hi=function(e,t,r){return e>>>r},gi.shr64_lo=function(e,t,r){return(e<<32-r|t>>>r)>>>0};var Si={};function Ei(){this.pending=null,this.pendingTotal=0,this.blockSize=this.constructor.blockSize,this.outSize=this.constructor.outSize,this.hmacStrength=this.constructor.hmacStrength,this.padLength=this.constructor.padLength/8,this.endian="big",this._delta8=this.blockSize/8,this._delta32=this.blockSize/32}Si.BlockHash=Ei,Ei.prototype.update=function(e,t){if(e=gi.toArray(e,t),this.pending?this.pending=this.pending.concat(e):this.pending=e,this.pendingTotal+=e.length,this.pending.length>=this._delta8){var r=(e=this.pending).length%this._delta8;this.pending=e.slice(e.length-r,e.length),0===this.pending.length&&(this.pending=null),e=gi.join32(e,0,e.length-r,this.endian);for(var n=0;n<e.length;n+=this._delta32)this._update(e,n,n+this._delta32)}return this},Ei.prototype.digest=function(e){return this.update(this._pad()),this._digest(e)},Ei.prototype._pad=function(){var e=this.pendingTotal,t=this._delta8,r=t-(e+this.padLength)%t,n=new Array(r+this.padLength);n[0]=128;for(var i=1;i<r;i++)n[i]=0;if(e<<=3,"big"===this.endian){for(var o=8;o<this.padLength;o++)n[i++]=0;n[i++]=0,n[i++]=0,n[i++]=0,n[i++]=0,n[i++]=e>>>24&255,n[i++]=e>>>16&255,n[i++]=e>>>8&255,n[i++]=255&e}else for(n[i++]=255&e,n[i++]=e>>>8&255,n[i++]=e>>>16&255,n[i++]=e>>>24&255,n[i++]=0,n[i++]=0,n[i++]=0,n[i++]=0,o=8;o<this.padLength;o++)n[i++]=0;return n};var Mi={},ki=gi.rotr32;function Ii(e,t,r){return e&t^~e&r}function Oi(e,t,r){return e&t^e&r^t&r}function Ti(e,t,r){return e^t^r}Mi.ft_1=function(e,t,r,n){return 0===e?Ii(t,r,n):1===e||3===e?Ti(t,r,n):2===e?Oi(t,r,n):void 0},Mi.ch32=Ii,Mi.maj32=Oi,Mi.s0_256=function(e){return ki(e,2)^ki(e,13)^ki(e,22)},Mi.s1_256=function(e){return ki(e,6)^ki(e,11)^ki(e,25)},Mi.g0_256=function(e){return ki(e,7)^ki(e,18)^e>>>3},Mi.g1_256=function(e){return ki(e,17)^ki(e,19)^e>>>10};var Ai,Pi=gi.rotl32,xi=gi.sum32,Ri=gi.sum32_5,Ni=Mi.ft_1,Bi=Si.BlockHash,Ui=[1518500249,1859775393,2400959708,3395469782];function Li(){if(!(this instanceof Li))return new Li;Bi.call(this),this.h=[1732584193,4023233417,2562383102,271733878,3285377520],this.W=new Array(80)}gi.inherits(Li,Bi),Ai=Li,Li.blockSize=512,Li.outSize=160,Li.hmacStrength=80,Li.padLength=64,Li.prototype._update=function(e,t){for(var r=this.W,n=0;n<16;n++)r[n]=e[t+n];for(;n<r.length;n++)r[n]=Pi(r[n-3]^r[n-8]^r[n-14]^r[n-16],1);var i=this.h[0],o=this.h[1],a=this.h[2],s=this.h[3],f=this.h[4];for(n=0;n<r.length;n++){var u=~~(n/20),h=Ri(Pi(i,5),Ni(u,o,a,s),f,r[n],Ui[u]);f=s,s=a,a=Pi(o,30),o=i,i=h}this.h[0]=xi(this.h[0],i),this.h[1]=xi(this.h[1],o),this.h[2]=xi(this.h[2],a),this.h[3]=xi(this.h[3],s),this.h[4]=xi(this.h[4],f)},Li.prototype._digest=function(e){return"hex"===e?gi.toHex32(this.h,"big"):gi.split32(this.h,"big")};var Ci={},ji=gi.sum32,Di=gi.sum32_4,qi=gi.sum32_5,Hi=Mi.ch32,Ki=Mi.maj32,Fi=Mi.s0_256,Vi=Mi.s1_256,zi=Mi.g0_256,Wi=Mi.g1_256,Gi=Si.BlockHash,Xi=[1116352408,1899447441,3049323471,3921009573,961987163,1508970993,2453635748,2870763221,3624381080,310598401,607225278,1426881987,1925078388,2162078206,2614888103,3248222580,3835390401,4022224774,264347078,604807628,770255983,1249150122,1555081692,1996064986,2554220882,2821834349,2952996808,3210313671,3336571891,3584528711,113926993,338241895,666307205,773529912,1294757372,1396182291,1695183700,1986661051,2177026350,2456956037,2730485921,2820302411,3259730800,3345764771,3516065817,3600352804,4094571909,275423344,430227734,506948616,659060556,883997877,958139571,1322822218,1537002063,1747873779,1955562222,2024104815,2227730452,2361852424,2428436474,2756734187,3204031479,3329325298];function Ji(){if(!(this instanceof Ji))return new 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Zi={},$i=gi.rotr64_hi,eo=gi.rotr64_lo,to=gi.shr64_hi,ro=gi.shr64_lo,no=gi.sum64,io=gi.sum64_hi,oo=gi.sum64_lo,ao=gi.sum64_4_hi,so=gi.sum64_4_lo,fo=gi.sum64_5_hi,uo=gi.sum64_5_lo,ho=Si.BlockHash,co=[1116352408,3609767458,1899447441,602891725,3049323471,3964484399,3921009573,2173295548,961987163,4081628472,1508970993,3053834265,2453635748,2937671579,2870763221,3664609560,3624381080,2734883394,310598401,1164996542,607225278,1323610764,1426881987,3590304994,1925078388,4068182383,2162078206,991336113,2614888103,633803317,3248222580,3479774868,3835390401,2666613458,4022224774,944711139,264347078,2341262773,604807628,2007800933,770255983,1495990901,1249150122,1856431235,1555081692,3175218132,1996064986,2198950837,2554220882,3999719339,2821834349,766784016,2952996808,2566594879,3210313671,3203337956,3336571891,1034457026,3584528711,2466948901,113926993,3758326383,338241895,168717936,666307205,1188179964,773529912,1546045734,1294757372,1522805485,1396182291,2643833823,1695183700,2343527390,1986661051,1014477480,2177026350,1206759142,2456956037,344077627,2730485921,1290863460,2820302411,3158454273,3259730800,3505952657,3345764771,106217008,3516065817,3606008344,3600352804,1432725776,4094571909,1467031594,275423344,851169720,430227734,3100823752,506948616,1363258195,659060556,3750685593,883997877,3785050280,958139571,3318307427,1322822218,3812723403,1537002063,2003034995,1747873779,3602036899,1955562222,1575990012,2024104815,1125592928,2227730452,2716904306,2361852424,442776044,2428436474,593698344,2756734187,3733110249,3204031479,2999351573,3329325298,3815920427,3391569614,3928383900,3515267271,566280711,3940187606,3454069534,4118630271,4000239992,116418474,1914138554,174292421,2731055270,289380356,3203993006,460393269,320620315,685471733,587496836,852142971,1086792851,1017036298,365543100,1126000580,2618297676,1288033470,3409855158,1501505948,4234509866,1607167915,987167468,1816402316,1246189591];function 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w=g,_=m,S=wo(c,d),E=_o(c,d),M=po(c,0,l,0,b),k=bo(0,d,0,p,0,y),I=this.k[v],O=this.k[v+1],T=r[v],A=r[v+1],P=fo(w,_,S,E,M,k,I,O,T,A),x=uo(w,_,S,E,M,k,I,O,T,A);w=mo(n,i),_=vo(n,i),S=yo(n,0,o,0,s),E=go(0,i,0,a,0,f);var R=io(w,_,S,E),N=oo(w,_,S,E);g=b,m=y,b=l,y=p,l=c,p=d,c=io(u,h,P,x),d=oo(h,h,P,x),u=s,h=f,s=o,f=a,o=n,a=i,n=io(P,x,R,N),i=oo(P,x,R,N)}no(this.h,0,n,i),no(this.h,2,o,a),no(this.h,4,s,f),no(this.h,6,u,h),no(this.h,8,c,d),no(this.h,10,l,p),no(this.h,12,b,y),no(this.h,14,g,m)},lo.prototype._digest=function(e){return"hex"===e?gi.toHex32(this.h,"big"):gi.split32(this.h,"big")};var Io;function Oo(){if(!(this instanceof Oo))return new 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Do,qo=[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,7,4,13,1,10,6,15,3,12,0,9,5,2,14,11,8,3,10,14,4,9,15,8,1,2,7,0,6,13,11,5,12,1,9,11,10,0,8,12,4,13,3,7,15,14,5,6,2,4,0,5,9,7,12,2,10,14,1,3,8,11,6,15,13],Ho=[5,14,7,0,9,2,11,4,13,6,15,8,1,10,3,12,6,11,3,7,0,13,5,10,14,15,8,12,4,9,1,2,15,5,1,3,7,14,6,9,11,8,12,2,10,0,4,13,8,6,4,1,3,11,15,0,5,12,2,13,9,7,10,14,12,15,10,4,1,5,8,7,6,2,13,14,0,3,9,11],Ko=[11,14,15,12,5,8,7,9,11,13,14,15,6,7,9,8,7,6,8,13,11,9,7,15,7,12,15,9,11,7,13,12,11,13,6,7,14,9,13,15,14,8,13,6,5,12,7,5,11,12,14,15,14,15,9,8,9,14,5,6,8,6,5,12,9,15,5,11,6,8,13,12,5,12,13,14,11,8,5,6],Fo=[8,9,9,11,13,15,15,5,7,7,8,11,14,14,12,6,9,13,15,7,12,8,9,11,7,7,12,7,6,15,13,11,9,7,15,11,8,6,6,14,12,13,5,14,13,13,7,5,15,5,8,11,14,14,6,14,6,9,12,9,12,5,15,8,8,5,12,9,12,5,14,6,8,13,6,5,15,13,11,11];function Vo(e,t,r){if(!(this instanceof Vo))return new Vo(e,t,r);this.Hash=e,this.blockSize=e.blockSize/8,this.outSize=e.outSize/8,this.inner=null,this.outer=null,this._init(gi.toArray(t,r))}Do=Vo,Vo.prototype._init=function(e){e.length>this.blockSize&&(e=(new this.Hash).update(e).digest());for(var t=e.length;t<this.blockSize;t++)e.push(0);for(t=0;t<e.length;t++)e[t]^=54;for(this.inner=(new this.Hash).update(e),t=0;t<e.length;t++)e[t]^=106;this.outer=(new this.Hash).update(e)},Vo.prototype.update=function(e,t){return this.inner.update(e,t),this},Vo.prototype.digest=function(e){return this.outer.update(this.inner.digest()),this.outer.digest(e)};var zo={},Wo=zo;Wo.utils=gi,Wo.common=Si,Wo.sha=To,Wo.ripemd=Ao,Wo.hmac=Do,Wo.sha1=Wo.sha.sha1,Wo.sha256=Wo.sha.sha256,Wo.sha224=Wo.sha.sha224,Wo.sha384=Wo.sha.sha384,Wo.sha512=Wo.sha.sha512,Wo.ripemd160=Wo.ripemd.ripemd160;var Go,Xo={},Jo=Xo;function Yo(e){"short"===e.type?this.curve=new bi.short(e):"edwards"===e.type?this.curve=new bi.edwards(e):this.curve=new 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0}Qo("secp256k1",{type:"short",prime:"k256",p:"ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f",a:"0",b:"7",n:"ffffffff ffffffff ffffffff fffffffe baaedce6 af48a03b bfd25e8c d0364141",h:"1",hash:zo.sha256,beta:"7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee",lambda:"5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72",basis:[{a:"3086d221a7d46bcde86c90e49284eb15",b:"-e4437ed6010e88286f547fa90abfe4c3"},{a:"114ca50f7a8e2f3f657c1108d9d44cfd8",b:"3086d221a7d46bcde86c90e49284eb15"}],gRed:!1,g:["79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798","483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8",Go]});var Zo={};function $o(e){if(!(this instanceof $o))return new $o(e);this.hash=e.hash,this.predResist=!!e.predResist,this.outLen=this.hash.outSize,this.minEntropy=e.minEntropy||this.hash.hmacStrength,this._reseed=null,this.reseedInterval=null,this.K=null,this.V=null;var t=Vn.toArray(e.entropy,e.entropyEnc||"hex"),r=Vn.toArray(e.nonce,e.nonceEnc||"hex"),n=Vn.toArray(e.pers,e.persEnc||"hex");this._init(t,r,n)}Zo=$o,$o.prototype._init=function(e,t,r){var n=e.concat(t).concat(r);this.K=new Array(this.outLen/8),this.V=new Array(this.outLen/8);for(var i=0;i<this.V.length;i++)this.K[i]=0,this.V[i]=1;this._update(n),this._reseed=1,this.reseedInterval=281474976710656},$o.prototype._hmac=function(){return new zo.hmac(this.hash,this.K)},$o.prototype._update=function(e){var t=this._hmac().update(this.V).update([0]);e&&(t=t.update(e)),this.K=t.digest(),this.V=this._hmac().update(this.V).digest(),e&&(this.K=this._hmac().update(this.V).update([1]).update(e).digest(),this.V=this._hmac().update(this.V).digest())},$o.prototype.reseed=function(e,t,r,n){"string"!=typeof t&&(n=r,r=t,t=null),e=Vn.toArray(e,t),r=Vn.toArray(r,n),this._update(e.concat(r||[])),this._reseed=1},$o.prototype.generate=function(e,t,r,n){if(this._reseed>this.reseedInterval)throw new Error("Reseed is required");"string"!=typeof t&&(n=r,r=t,t=null),r&&(r=Vn.toArray(r,n||"hex"),this._update(r));for(var i=[];i.length<e;)this.V=this._hmac().update(this.V).digest(),i=i.concat(this.V);var o=i.slice(0,e);return this._update(r),this._reseed++,Vn.encode(o,t)};var ea;function ta(e,t){this.ec=e,this.priv=null,this.pub=null,t.priv&&this._importPrivate(t.priv,t.privEnc),t.pub&&this._importPublic(t.pub,t.pubEnc)}Xn.assert,ea=ta,ta.fromPublic=function(e,t,r){return t instanceof ta?t:new ta(e,{pub:t,pubEnc:r})},ta.fromPrivate=function(e,t,r){return t instanceof ta?t:new ta(e,{priv:t,privEnc:r})},ta.prototype.validate=function(){var e=this.getPublic();return e.isInfinity()?{result:!1,reason:"Invalid public key"}:e.validate()?e.mul(this.ec.curve.n).isInfinity()?{result:!0,reason:null}:{result:!1,reason:"Public key * N != O"}:{result:!1,reason:"Public key is not a point"}},ta.prototype.getPublic=function(e,t){return"string"==typeof e&&(t=e,e=null),this.pub||(this.pub=this.ec.g.mul(this.priv)),t?this.pub.encode(t,e):this.pub},ta.prototype.getPrivate=function(e){return"hex"===e?this.priv.toString(16,2):this.priv},ta.prototype._importPrivate=function(e,t){this.priv=new Hn(e,t||16),this.priv=this.priv.umod(this.ec.curve.n)},ta.prototype._importPublic=function(e,t){if(e.x||e.y)return"mont"===this.ec.curve.type||"short"===this.ec.curve.type||this.ec.curve.type,void(this.pub=this.ec.curve.point(e.x,e.y));this.pub=this.ec.curve.decodePoint(e,t)},ta.prototype.derive=function(e){return e.mul(this.priv).getX()},ta.prototype.sign=function(e,t,r){return this.ec.sign(e,this,t,r)},ta.prototype.verify=function(e,t){return this.ec.verify(e,t,this)},ta.prototype.inspect=function(){return"<Key priv: "+(this.priv&&this.priv.toString(16,2))+" pub: "+(this.pub&&this.pub.inspect())+" >"};var ra={};function na(e,t){if(e instanceof na)return e;this._importDER(e,t)||(this.r=new Hn(e.r,16),this.s=new Hn(e.s,16),void 0===e.recoveryParam?this.recoveryParam=null:this.recoveryParam=e.recoveryParam)}function ia(){this.place=0}function oa(e,t){var r=e[t.place++];if(!(128&r))return r;var n=15&r;if(0===n||n>4)return!1;for(var i=0,o=0,a=t.place;o<n;o++,a++)i<<=8,i|=e[a],i>>>=0;return!(i<=127)&&(t.place=a,i)}function aa(e){for(var t=0,r=e.length-1;!e[t]&&!(128&e[t+1])&&t<r;)t++;return 0===t?e:e.slice(t)}function sa(e,t){if(t<128)e.push(t);else{var r=1+(Math.log(t)/Math.LN2>>>3);for(e.push(128|r);--r;)e.push(t>>>(r<<3)&255);e.push(t)}}Xn.assert,ra=na,na.prototype._importDER=function(e,t){e=Xn.toArray(e,t);var r=new ia;if(48!==e[r.place++])return!1;var n=oa(e,r);if(!1===n)return!1;if(n+r.place!==e.length)return!1;if(2!==e[r.place++])return!1;var i=oa(e,r);if(!1===i)return!1;var o=e.slice(r.place,i+r.place);if(r.place+=i,2!==e[r.place++])return!1;var a=oa(e,r);if(!1===a)return!1;if(e.length!==a+r.place)return!1;var s=e.slice(r.place,a+r.place);if(0===o[0]){if(!(128&o[1]))return!1;o=o.slice(1)}if(0===s[0]){if(!(128&s[1]))return!1;s=s.slice(1)}return this.r=new Hn(o),this.s=new Hn(s),this.recoveryParam=null,!0},na.prototype.toDER=function(e){var t=this.r.toArray(),r=this.s.toArray();for(128&t[0]&&(t=[0].concat(t)),128&r[0]&&(r=[0].concat(r)),t=aa(t),r=aa(r);!(r[0]||128&r[1]);)r=r.slice(1);var n=[2];sa(n,t.length),(n=n.concat(t)).push(2),sa(n,r.length);var i=n.concat(r),o=[48];return sa(o,i.length),o=o.concat(i),Xn.encode(o,e)};var fa,ua=(Xn.assert,ea);function ha(e){if(!(this instanceof ha))return new ha(e);"string"==typeof e&&(e=Xo[e]),e instanceof Xo.PresetCurve&&(e={curve:e}),this.curve=e.curve.curve,this.n=this.curve.n,this.nh=this.n.ushrn(1),this.g=this.curve.g,this.g=e.curve.g,this.g.precompute(e.curve.n.bitLength()+1),this.hash=e.hash||e.curve.hash}fa=ha,ha.prototype.keyPair=function(e){return new ua(this,e)},ha.prototype.keyFromPrivate=function(e,t){return ua.fromPrivate(this,e,t)},ha.prototype.keyFromPublic=function(e,t){return ua.fromPublic(this,e,t)},ha.prototype.genKeyPair=function(e){e||(e={});for(var t=new Zo({hash:this.hash,pers:e.pers,persEnc:e.persEnc||"utf8",entropy:e.entropy||Yn(this.hash.hmacStrength),entropyEnc:e.entropy&&e.entropyEnc||"utf8",nonce:this.n.toArray()}),r=this.n.byteLength(),n=this.n.sub(new Hn(2));;){var i=new Hn(t.generate(r));if(!(i.cmp(n)>0))return i.iaddn(1),this.keyFromPrivate(i)}},ha.prototype._truncateToN=function(e,t){var r=8*e.byteLength()-this.n.bitLength();return r>0&&(e=e.ushrn(r)),!t&&e.cmp(this.n)>=0?e.sub(this.n):e},ha.prototype.sign=function(e,t,r,n){"object"==typeof r&&(n=r,r=null),n||(n={}),t=this.keyFromPrivate(t,r),e=this._truncateToN(new Hn(e,16));for(var i=this.n.byteLength(),o=t.getPrivate().toArray("be",i),a=e.toArray("be",i),s=new Zo({hash:this.hash,entropy:o,nonce:a,pers:n.pers,persEnc:n.persEnc||"utf8"}),f=this.n.sub(new Hn(1)),u=0;;u++){var h=n.k?n.k(u):new Hn(s.generate(this.n.byteLength()));if(!((h=this._truncateToN(h,!0)).cmpn(1)<=0||h.cmp(f)>=0)){var c=this.g.mul(h);if(!c.isInfinity()){var d=c.getX(),l=d.umod(this.n);if(0!==l.cmpn(0)){var p=h.invm(this.n).mul(l.mul(t.getPrivate()).iadd(e));if(0!==(p=p.umod(this.n)).cmpn(0)){var b=(c.getY().isOdd()?1:0)|(0!==d.cmp(l)?2:0);return n.canonical&&p.cmp(this.nh)>0&&(p=this.n.sub(p),b^=1),new ra({r:l,s:p,recoveryParam:b})}}}}}},ha.prototype.verify=function(e,t,r,n){e=this._truncateToN(new Hn(e,16)),r=this.keyFromPublic(r,n);var i=(t=new ra(t,"hex")).r,o=t.s;if(i.cmpn(1)<0||i.cmp(this.n)>=0)return!1;if(o.cmpn(1)<0||o.cmp(this.n)>=0)return!1;var a,s=o.invm(this.n),f=s.mul(e).umod(this.n),u=s.mul(i).umod(this.n);return this.curve._maxwellTrick?!(a=this.g.jmulAdd(f,r.getPublic(),u)).isInfinity()&&a.eqXToP(i):!(a=this.g.mulAdd(f,r.getPublic(),u)).isInfinity()&&0===a.getX().umod(this.n).cmp(i)},ha.prototype.recoverPubKey=function(e,t,r,n){t=new ra(t,n);var i=this.n,o=new Hn(e),a=t.r,s=t.s,f=1&r,u=r>>1;if(a.cmp(this.curve.p.umod(this.curve.n))>=0&&u)throw new Error("Unable to find sencond key candinate");a=u?this.curve.pointFromX(a.add(this.curve.n),f):this.curve.pointFromX(a,f);var h=t.r.invm(i),c=i.sub(o).mul(h).umod(i),d=s.mul(h).umod(i);return this.g.mulAdd(c,a,d)},ha.prototype.getKeyRecoveryParam=function(e,t,r,n){if(null!==(t=new ra(t,n)).recoveryParam)return t.recoveryParam;for(var i=0;i<4;i++){var o;try{o=this.recoverPubKey(e,t,i)}catch(e){continue}if(o.eq(r))return i}throw new Error("Unable to find valid recovery factor")};var ca={},da=(Xn.assert,Xn.parseBytes),la=Xn.cachedProperty;function pa(e,t){this.eddsa=e,this._secret=da(t.secret),e.isPoint(t.pub)?this._pub=t.pub:this._pubBytes=da(t.pub)}pa.fromPublic=function(e,t){return t instanceof pa?t:new pa(e,{pub:t})},pa.fromSecret=function(e,t){return t instanceof pa?t:new pa(e,{secret:t})},pa.prototype.secret=function(){return this._secret},la(pa,"pubBytes",(function(){return 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t&&(t=ga(t)),Array.isArray(t)&&(t={R:t.slice(0,e.encodingLength),S:t.slice(e.encodingLength)}),e.isPoint(t.R)&&(this._R=t.R),t.S instanceof Hn&&(this._S=t.S),this._Rencoded=Array.isArray(t.R)?t.R:t.Rencoded,this._Sencoded=Array.isArray(t.S)?t.S:t.Sencoded}ya(ma,"S",(function(){return this.eddsa.decodeInt(this.Sencoded())})),ya(ma,"R",(function(){return this.eddsa.decodePoint(this.Rencoded())})),ya(ma,"Rencoded",(function(){return this.eddsa.encodePoint(this.R())})),ya(ma,"Sencoded",(function(){return this.eddsa.encodeInt(this.S())})),ma.prototype.toBytes=function(){return this.Rencoded().concat(this.Sencoded())},ma.prototype.toHex=function(){return Xn.encode(this.toBytes(),"hex").toUpperCase()},ba=ma;var va,wa=(Xn.assert,Xn.parseBytes);function _a(e){if(!(this instanceof _a))return new 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ca.fromSecret(this,e)},_a.prototype.makeSignature=function(e){return e instanceof ba?e:new ba(this,e)},_a.prototype.encodePoint=function(e){var t=e.getY().toArray("le",this.encodingLength);return t[this.encodingLength-1]|=e.getX().isOdd()?128:0,t},_a.prototype.decodePoint=function(e){var t=(e=Xn.parseBytes(e)).length-1,r=e.slice(0,t).concat(-129&e[t]),n=0!=(128&e[t]),i=Xn.intFromLE(r);return this.curve.pointFromY(i,n)},_a.prototype.encodeInt=function(e){return e.toArray("le",this.encodingLength)},_a.prototype.decodeInt=function(e){return Xn.intFromLE(e)},_a.prototype.isPoint=function(e){return e instanceof this.pointClass};var Sa={},Ea=Sa;Ea.version="6.5.3",Ea.utils=Xn,Ea.rand=Yn,Ea.curve=bi,Ea.curves=Xo,Ea.ec=fa,Ea.eddsa=va;var Ma={};(function(e){const t=e.alloc(1,1),r=e.alloc(1,0);Ma=function(n,i,o,a,s){let 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e=r.call(this);return this[t]=e,e},set(e){Object.defineProperty(this,t,{configurable:!0,enumerable:!0,value:e,writable:!0})}})},ds.value=function(e){let t;return()=>void 0!==t?t:t=e()};var ls={};Object.defineProperty(ls,"__esModule",{value:!0});const ps=cs.OPS;ls.p2data=function(e,t){if(!e.data&&!e.output)throw new TypeError("Not enough data");t=Object.assign({validate:!0},t||{}),qa({network:qa.maybe(qa.Object),output:qa.maybe(qa.Buffer),data:qa.maybe(qa.arrayOf(qa.Buffer))},e);const r={name:"embed",network:e.network||$a.bitcoin};if(ds.prop(r,"output",()=>{if(e.data)return cs.compile([ps.OP_RETURN].concat(e.data))}),ds.prop(r,"data",()=>{if(e.output)return cs.decompile(e.output).slice(1)}),t.validate&&e.output){const t=cs.decompile(e.output);if(t[0]!==ps.OP_RETURN)throw new TypeError("Output is invalid");if(!t.slice(1).every(qa.Buffer))throw new TypeError("Output is invalid");if(e.data&&!function(e,t){return e.length===t.length&&e.every((e,r)=>e.equals(t[r]))}(e.data,r.data))throw new TypeError("Data mismatch")}return Object.assign(r,e)};var bs={};Object.defineProperty(bs,"__esModule",{value:!0});const ys=cs.OPS,gs=ys.OP_RESERVED;function ms(e,t){return e.length===t.length&&e.every((e,r)=>e.equals(t[r]))}bs.p2ms=function(e,t){if(!(e.input||e.output||e.pubkeys&&void 0!==e.m||e.signatures))throw new TypeError("Not enough data");function r(e){return cs.isCanonicalScriptSignature(e)||void 0!==(t.allowIncomplete&&e===ys.OP_0)}t=Object.assign({validate:!0},t||{}),qa({network:qa.maybe(qa.Object),m:qa.maybe(qa.Number),n:qa.maybe(qa.Number),output:qa.maybe(qa.Buffer),pubkeys:qa.maybe(qa.arrayOf(ka.isPoint)),signatures:qa.maybe(qa.arrayOf(r)),input:qa.maybe(qa.Buffer)},e);const n={network:e.network||$a.bitcoin};let i=[],o=!1;function a(e){o||(o=!0,i=cs.decompile(e),n.m=i[0]-gs,n.n=i[i.length-2]-gs,n.pubkeys=i.slice(1,-2))}if(ds.prop(n,"output",()=>{if(e.m&&n.n&&e.pubkeys)return cs.compile([].concat(gs+e.m,e.pubkeys,gs+n.n,ys.OP_CHECKMULTISIG))}),ds.prop(n,"m",()=>{if(n.output)return a(n.output),n.m}),ds.prop(n,"n",()=>{if(n.pubkeys)return n.pubkeys.length}),ds.prop(n,"pubkeys",()=>{if(e.output)return a(e.output),n.pubkeys}),ds.prop(n,"signatures",()=>{if(e.input)return cs.decompile(e.input).slice(1)}),ds.prop(n,"input",()=>{if(e.signatures)return cs.compile([ys.OP_0].concat(e.signatures))}),ds.prop(n,"witness",()=>{if(n.input)return[]}),ds.prop(n,"name",()=>{if(n.m&&n.n)return`p2ms(${n.m} of ${n.n})`}),t.validate){if(e.output){if(a(e.output),!qa.Number(i[0]))throw new TypeError("Output is invalid");if(!qa.Number(i[i.length-2]))throw new TypeError("Output is invalid");if(i[i.length-1]!==ys.OP_CHECKMULTISIG)throw new TypeError("Output is invalid");if(n.m<=0||n.n>16||n.m>n.n||n.n!==i.length-3)throw new TypeError("Output is invalid");if(!n.pubkeys.every(e=>ka.isPoint(e)))throw new TypeError("Output is invalid");if(void 0!==e.m&&e.m!==n.m)throw new TypeError("m mismatch");if(void 0!==e.n&&e.n!==n.n)throw new TypeError("n mismatch");if(e.pubkeys&&!ms(e.pubkeys,n.pubkeys))throw new TypeError("Pubkeys mismatch")}if(e.pubkeys){if(void 0!==e.n&&e.n!==e.pubkeys.length)throw new TypeError("Pubkey count mismatch");if(n.n=e.pubkeys.length,n.n<n.m)throw new TypeError("Pubkey count cannot be less than m")}if(e.signatures){if(e.signatures.length<n.m)throw new TypeError("Not enough signatures provided");if(e.signatures.length>n.m)throw new TypeError("Too many signatures provided")}if(e.input){if(e.input[0]!==ys.OP_0)throw new TypeError("Input is invalid");if(0===n.signatures.length||!n.signatures.every(r))throw new TypeError("Input has invalid signature(s)");if(e.signatures&&!ms(e.signatures,n.signatures))throw new TypeError("Signature mismatch");if(void 0!==e.m&&e.m!==e.signatures.length)throw new TypeError("Signature count mismatch")}}return Object.assign(n,e)};var vs={};Object.defineProperty(vs,"__esModule",{value:!0});const ws=cs.OPS;vs.p2pk=function(e,t){if(!(e.input||e.output||e.pubkey||e.input||e.signature))throw new TypeError("Not enough data");t=Object.assign({validate:!0},t||{}),qa({network:qa.maybe(qa.Object),output:qa.maybe(qa.Buffer),pubkey:qa.maybe(ka.isPoint),signature:qa.maybe(cs.isCanonicalScriptSignature),input:qa.maybe(qa.Buffer)},e);const r=ds.value(()=>cs.decompile(e.input)),n={name:"p2pk",network:e.network||$a.bitcoin};if(ds.prop(n,"output",()=>{if(e.pubkey)return cs.compile([e.pubkey,ws.OP_CHECKSIG])}),ds.prop(n,"pubkey",()=>{if(e.output)return e.output.slice(1,-1)}),ds.prop(n,"signature",()=>{if(e.input)return r()[0]}),ds.prop(n,"input",()=>{if(e.signature)return cs.compile([e.signature])}),ds.prop(n,"witness",()=>{if(n.input)return[]}),t.validate){if(e.output){if(e.output[e.output.length-1]!==ws.OP_CHECKSIG)throw new TypeError("Output is invalid");if(!ka.isPoint(n.pubkey))throw new TypeError("Output pubkey is invalid");if(e.pubkey&&!e.pubkey.equals(n.pubkey))throw new TypeError("Pubkey mismatch")}if(e.signature&&e.input&&!e.input.equals(n.input))throw new TypeError("Signature mismatch");if(e.input){if(1!==r().length)throw new TypeError("Input is invalid");if(!cs.isCanonicalScriptSignature(n.signature))throw new TypeError("Input has invalid signature")}}return Object.assign(n,e)};var _s={};function Ss(e){try{return kn("rmd160").update(e).digest()}catch(_u){return kn("ripemd160").update(e).digest()}}function Es(e){return kn("sha256").update(e).digest()}Object.defineProperty(_s,"__esModule",{value:!0}),_s.ripemd160=Ss,_s.sha1=function(e){return kn("sha1").update(e).digest()},_s.sha256=Es,_s.hash160=function(e){return Ss(Es(e))},_s.hash256=function(e){return Es(Es(e))};var Ms={};(function(e){"use strict";Object.defineProperty(Ms,"__esModule",{value:!0});const t=cs.OPS;Ms.p2pkh=function(r,n){if(!(r.address||r.hash||r.output||r.pubkey||r.input))throw new TypeError("Not enough data");n=Object.assign({validate:!0},n||{}),qa({network:qa.maybe(qa.Object),address:qa.maybe(qa.String),hash:qa.maybe(qa.BufferN(20)),output:qa.maybe(qa.BufferN(25)),pubkey:qa.maybe(ka.isPoint),signature:qa.maybe(cs.isCanonicalScriptSignature),input:qa.maybe(qa.Buffer)},r);const i=ds.value(()=>{const e=qn.decode(r.address);return{version:e.readUInt8(0),hash:e.slice(1)}}),o=ds.value(()=>cs.decompile(r.input)),a=r.network||$a.bitcoin,s={name:"p2pkh",network:a};if(ds.prop(s,"address",()=>{if(!s.hash)return;const t=e.allocUnsafe(21);return t.writeUInt8(a.pubKeyHash,0),s.hash.copy(t,1),qn.encode(t)}),ds.prop(s,"hash",()=>r.output?r.output.slice(3,23):r.address?i().hash:r.pubkey||s.pubkey?_s.hash160(r.pubkey||s.pubkey):void 0),ds.prop(s,"output",()=>{if(s.hash)return cs.compile([t.OP_DUP,t.OP_HASH160,s.hash,t.OP_EQUALVERIFY,t.OP_CHECKSIG])}),ds.prop(s,"pubkey",()=>{if(r.input)return o()[1]}),ds.prop(s,"signature",()=>{if(r.input)return o()[0]}),ds.prop(s,"input",()=>{if(r.pubkey&&r.signature)return cs.compile([r.signature,r.pubkey])}),ds.prop(s,"witness",()=>{if(s.input)return[]}),n.validate){let n=e.from([]);if(r.address){if(i().version!==a.pubKeyHash)throw new TypeError("Invalid version or Network mismatch");if(20!==i().hash.length)throw new TypeError("Invalid address");n=i().hash}if(r.hash){if(n.length>0&&!n.equals(r.hash))throw new TypeError("Hash mismatch");n=r.hash}if(r.output){if(25!==r.output.length||r.output[0]!==t.OP_DUP||r.output[1]!==t.OP_HASH160||20!==r.output[2]||r.output[23]!==t.OP_EQUALVERIFY||r.output[24]!==t.OP_CHECKSIG)throw new TypeError("Output is invalid");const e=r.output.slice(3,23);if(n.length>0&&!n.equals(e))throw new TypeError("Hash mismatch");n=e}if(r.pubkey){const e=_s.hash160(r.pubkey);if(n.length>0&&!n.equals(e))throw new TypeError("Hash mismatch");n=e}if(r.input){const e=o();if(2!==e.length)throw new TypeError("Input is invalid");if(!cs.isCanonicalScriptSignature(e[0]))throw new TypeError("Input has invalid signature");if(!ka.isPoint(e[1]))throw new TypeError("Input has invalid pubkey");if(r.signature&&!r.signature.equals(e[0]))throw new TypeError("Signature mismatch");if(r.pubkey&&!r.pubkey.equals(e[1]))throw new TypeError("Pubkey mismatch");const t=_s.hash160(e[1]);if(n.length>0&&!n.equals(t))throw new TypeError("Hash mismatch")}}return Object.assign(s,r)}}).call(this,y({}).Buffer);var ks={};(function(e){"use strict";Object.defineProperty(ks,"__esModule",{value:!0});const t=cs.OPS;ks.p2sh=function(r,n){if(!(r.address||r.hash||r.output||r.redeem||r.input))throw new TypeError("Not enough data");n=Object.assign({validate:!0},n||{}),qa({network:qa.maybe(qa.Object),address:qa.maybe(qa.String),hash:qa.maybe(qa.BufferN(20)),output:qa.maybe(qa.BufferN(23)),redeem:qa.maybe({network:qa.maybe(qa.Object),output:qa.maybe(qa.Buffer),input:qa.maybe(qa.Buffer),witness:qa.maybe(qa.arrayOf(qa.Buffer))}),input:qa.maybe(qa.Buffer),witness:qa.maybe(qa.arrayOf(qa.Buffer))},r);let i=r.network;i||(i=r.redeem&&r.redeem.network||$a.bitcoin);const o={network:i},a=ds.value(()=>{const e=qn.decode(r.address);return{version:e.readUInt8(0),hash:e.slice(1)}}),s=ds.value(()=>cs.decompile(r.input)),f=ds.value(()=>{const e=s();return{network:i,output:e[e.length-1],input:cs.compile(e.slice(0,-1)),witness:r.witness||[]}});if(ds.prop(o,"address",()=>{if(!o.hash)return;const t=e.allocUnsafe(21);return t.writeUInt8(o.network.scriptHash,0),o.hash.copy(t,1),qn.encode(t)}),ds.prop(o,"hash",()=>r.output?r.output.slice(2,22):r.address?a().hash:o.redeem&&o.redeem.output?_s.hash160(o.redeem.output):void 0),ds.prop(o,"output",()=>{if(o.hash)return cs.compile([t.OP_HASH160,o.hash,t.OP_EQUAL])}),ds.prop(o,"redeem",()=>{if(r.input)return f()}),ds.prop(o,"input",()=>{if(r.redeem&&r.redeem.input&&r.redeem.output)return cs.compile([].concat(cs.decompile(r.redeem.input),r.redeem.output))}),ds.prop(o,"witness",()=>o.redeem&&o.redeem.witness?o.redeem.witness:o.input?[]:void 0),ds.prop(o,"name",()=>{const e=["p2sh"];return void 0!==o.redeem&&e.push(o.redeem.name),e.join("-")}),n.validate){let n=e.from([]);if(r.address){if(a().version!==i.scriptHash)throw new TypeError("Invalid version or Network mismatch");if(20!==a().hash.length)throw new TypeError("Invalid address");n=a().hash}if(r.hash){if(n.length>0&&!n.equals(r.hash))throw new TypeError("Hash mismatch");n=r.hash}if(r.output){if(23!==r.output.length||r.output[0]!==t.OP_HASH160||20!==r.output[1]||r.output[22]!==t.OP_EQUAL)throw new TypeError("Output is invalid");const e=r.output.slice(2,22);if(n.length>0&&!n.equals(e))throw new TypeError("Hash mismatch");n=e}const o=e=>{if(e.output){const t=cs.decompile(e.output);if(!t||t.length<1)throw new TypeError("Redeem.output too short");const r=_s.hash160(e.output);if(n.length>0&&!n.equals(r))throw new TypeError("Hash mismatch");n=r}if(e.input){const t=e.input.length>0,r=e.witness&&e.witness.length>0;if(!t&&!r)throw new TypeError("Empty input");if(t&&r)throw new TypeError("Input and witness provided");if(t){const t=cs.decompile(e.input);if(!cs.isPushOnly(t))throw new TypeError("Non push-only scriptSig")}}};if(r.input){const t=s();if(!t||t.length<1)throw new TypeError("Input too short");if(!e.isBuffer(f().output))throw new TypeError("Input is invalid");o(f())}if(r.redeem){if(r.redeem.network&&r.redeem.network!==i)throw new TypeError("Network mismatch");if(r.input){const e=f();if(r.redeem.output&&!r.redeem.output.equals(e.output))throw new TypeError("Redeem.output mismatch");if(r.redeem.input&&!r.redeem.input.equals(e.input))throw new TypeError("Redeem.input mismatch")}o(r.redeem)}if(r.witness&&r.redeem&&r.redeem.witness&&!function(e,t){return e.length===t.length&&e.every((e,r)=>e.equals(t[r]))}(r.redeem.witness,r.witness))throw new TypeError("Witness and redeem.witness mismatch")}return Object.assign(o,r)}}).call(this,y({}).Buffer);for(var Is="qpzry9x8gf2tvdw0s3jn54khce6mua7l",Os={},Ts=0;Ts<Is.length;Ts++){var As=Is.charAt(Ts);if(void 0!==Os[As])throw new TypeError(As+" is ambiguous");Os[As]=Ts}function Ps(e){var t=e>>25;return(33554431&e)<<5^996825010&-(t>>0&1)^642813549&-(t>>1&1)^513874426&-(t>>2&1)^1027748829&-(t>>3&1)^705979059&-(t>>4&1)}function xs(e){for(var t=1,r=0;r<e.length;++r){var n=e.charCodeAt(r);if(n<33||n>126)return"Invalid prefix ("+e+")";t=Ps(t)^n>>5}for(t=Ps(t),r=0;r<e.length;++r){var i=e.charCodeAt(r);t=Ps(t)^31&i}return t}function Rs(e,t){if(t=t||90,e.length<8)return e+" too short";if(e.length>t)return"Exceeds length limit";var r=e.toLowerCase(),n=e.toUpperCase();if(e!==r&&e!==n)return"Mixed-case string "+e;var i=(e=r).lastIndexOf("1");if(-1===i)return"No separator character for "+e;if(0===i)return"Missing prefix for "+e;var o=e.slice(0,i),a=e.slice(i+1);if(a.length<6)return"Data too short";var s=xs(o);if("string"==typeof s)return s;for(var f=[],u=0;u<a.length;++u){var h=a.charAt(u),c=Os[h];if(void 0===c)return"Unknown character "+h;s=Ps(s)^c,u+6>=a.length||f.push(c)}return 1!==s?"Invalid checksum for "+e:{prefix:o,words:f}}function Ns(e,t,r,n){for(var i=0,o=0,a=(1<<r)-1,s=[],f=0;f<e.length;++f)for(i=i<<t|e[f],o+=t;o>=r;)o-=r,s.push(i>>o&a);if(n)o>0&&s.push(i<<r-o&a);else{if(o>=t)return"Excess padding";if(i<<r-o&a)return"Non-zero padding"}return s}var Bs=function(e){var t=Rs.apply(null,arguments);if("object"==typeof t)return t;throw new Error(t)},Us=function(e,t,r){if(r=r||90,e.length+7+t.length>r)throw new TypeError("Exceeds length limit");var n=xs(e=e.toLowerCase());if("string"==typeof n)throw new Error(n);for(var i=e+"1",o=0;o<t.length;++o){var a=t[o];if(a>>5!=0)throw new Error("Non 5-bit word");n=Ps(n)^a,i+=Is.charAt(a)}for(o=0;o<6;++o)n=Ps(n);for(n^=1,o=0;o<6;++o){i+=Is.charAt(n>>5*(5-o)&31)}return i},Ls=function(e){var t=Ns(e,8,5,!0);if(Array.isArray(t))return t;throw new Error(t)},Cs=function(e){var t=Ns(e,5,8,!1);if(Array.isArray(t))return t;throw new Error(t)},js={};(function(e){"use strict";Object.defineProperty(js,"__esModule",{value:!0});const t=cs.OPS,r=e.alloc(0);js.p2wpkh=function(n,i){if(!(n.address||n.hash||n.output||n.pubkey||n.witness))throw new TypeError("Not enough data");i=Object.assign({validate:!0},i||{}),qa({address:qa.maybe(qa.String),hash:qa.maybe(qa.BufferN(20)),input:qa.maybe(qa.BufferN(0)),network:qa.maybe(qa.Object),output:qa.maybe(qa.BufferN(22)),pubkey:qa.maybe(ka.isPoint),signature:qa.maybe(cs.isCanonicalScriptSignature),witness:qa.maybe(qa.arrayOf(qa.Buffer))},n);const o=ds.value(()=>{const t=Bs(n.address),r=t.words.shift(),i=Cs(t.words);return{version:r,prefix:t.prefix,data:e.from(i)}}),a=n.network||$a.bitcoin,s={name:"p2wpkh",network:a};if(ds.prop(s,"address",()=>{if(!s.hash)return;const e=Ls(s.hash);return e.unshift(0),Us(a.bech32,e)}),ds.prop(s,"hash",()=>n.output?n.output.slice(2,22):n.address?o().data:n.pubkey||s.pubkey?_s.hash160(n.pubkey||s.pubkey):void 0),ds.prop(s,"output",()=>{if(s.hash)return cs.compile([t.OP_0,s.hash])}),ds.prop(s,"pubkey",()=>n.pubkey?n.pubkey:n.witness?n.witness[1]:void 0),ds.prop(s,"signature",()=>{if(n.witness)return n.witness[0]}),ds.prop(s,"input",()=>{if(s.witness)return r}),ds.prop(s,"witness",()=>{if(n.pubkey&&n.signature)return[n.signature,n.pubkey]}),i.validate){let r=e.from([]);if(n.address){if(a&&a.bech32!==o().prefix)throw new TypeError("Invalid prefix or Network mismatch");if(0!==o().version)throw new TypeError("Invalid address version");if(20!==o().data.length)throw new TypeError("Invalid address data");r=o().data}if(n.hash){if(r.length>0&&!r.equals(n.hash))throw new TypeError("Hash mismatch");r=n.hash}if(n.output){if(22!==n.output.length||n.output[0]!==t.OP_0||20!==n.output[1])throw new TypeError("Output is invalid");if(r.length>0&&!r.equals(n.output.slice(2)))throw new TypeError("Hash mismatch");r=n.output.slice(2)}if(n.pubkey){const e=_s.hash160(n.pubkey);if(r.length>0&&!r.equals(e))throw new TypeError("Hash mismatch");if(r=e,!ka.isPoint(n.pubkey)||33!==n.pubkey.length)throw new TypeError("Invalid pubkey for 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e.value},nf.encode=function(t){return{key:e.from([ef.InputTypes.FINAL_SCRIPTSIG]),value:t}},nf.expected="Buffer",nf.check=function(t){return e.isBuffer(t)},nf.canAdd=function(e,t){return!!e&&!!t&&void 0===e.finalScriptSig}}).call(this,y({}).Buffer);var of={};(function(e){"use strict";Object.defineProperty(of,"__esModule",{value:!0}),of.decode=function(e){if(e.key[0]!==ef.InputTypes.FINAL_SCRIPTWITNESS)throw new Error("Decode Error: could not decode finalScriptWitness with key 0x"+e.key.toString("hex"));return e.value},of.encode=function(t){return{key:e.from([ef.InputTypes.FINAL_SCRIPTWITNESS]),value:t}},of.expected="Buffer",of.check=function(t){return e.isBuffer(t)},of.canAdd=function(e,t){return!!e&&!!t&&void 0===e.finalScriptWitness}}).call(this,y({}).Buffer);var af={};(function(e){"use strict";Object.defineProperty(af,"__esModule",{value:!0}),af.decode=function(e){if(e.key[0]!==ef.InputTypes.NON_WITNESS_UTXO)throw new Error("Decode Error: could not decode nonWitnessUtxo with key 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e.isBuffer(t.pubkey)&&e.isBuffer(t.signature)&&[33,65].includes(t.pubkey.length)&&[2,3,4].includes(t.pubkey[0])&&function(t){if(!e.isBuffer(t)||t.length<9)return!1;if(48!==t[0])return!1;if(t.length!==t[1]+3)return!1;if(2!==t[2])return!1;const r=t[3];if(r>33||r<1)return!1;if(2!==t[3+r+1])return!1;const n=t[3+r+2];return!(n>33||n<1)&&t.length===3+r+2+n+2}(t.signature)},sf.canAddToArray=function(e,t,r){const n=t.pubkey.toString("hex");return!r.has(n)&&(r.add(n),0===e.filter(e=>e.pubkey.equals(t.pubkey)).length)}}).call(this,y({}).Buffer);var ff={};(function(e){"use strict";Object.defineProperty(ff,"__esModule",{value:!0}),ff.decode=function(e){if(e.key[0]!==ef.InputTypes.POR_COMMITMENT)throw new Error("Decode Error: could not decode porCommitment with key 0x"+e.key.toString("hex"));return e.value.toString("utf8")},ff.encode=function(t){return{key:e.from([ef.InputTypes.POR_COMMITMENT]),value:e.from(t,"utf8")}},ff.expected="string",ff.check=function(e){return"string"==typeof e},ff.canAdd=function(e,t){return!!e&&!!t&&void 0===e.porCommitment}}).call(this,y({}).Buffer);var uf={};(function(e){"use strict";Object.defineProperty(uf,"__esModule",{value:!0}),uf.decode=function(e){if(e.key[0]!==ef.InputTypes.SIGHASH_TYPE)throw new Error("Decode Error: could not decode sighashType with key 0x"+e.key.toString("hex"));return e.value.readUInt32LE(0)},uf.encode=function(t){const r=e.from([ef.InputTypes.SIGHASH_TYPE]),n=e.allocUnsafe(4);return n.writeUInt32LE(t,0),{key:r,value:n}},uf.expected="number",uf.check=function(e){return"number"==typeof e},uf.canAdd=function(e,t){return!!e&&!!t&&void 0===e.sighashType}}).call(this,y({}).Buffer);var hf={};(function(e){"use strict";Object.defineProperty(hf,"__esModule",{value:!0});function t(e){if(e<0||e>9007199254740991||e%1!=0)throw new RangeError("value out of range")}function r(e){return t(e),e<253?1:e<=65535?3:e<=4294967295?5:9}hf.encode=function n(i,o,a){if(t(i),o||(o=e.allocUnsafe(r(i))),!e.isBuffer(o))throw new TypeError("buffer must be a Buffer instance");return a||(a=0),i<253?(o.writeUInt8(i,a),Object.assign(n,{bytes:1})):i<=65535?(o.writeUInt8(253,a),o.writeUInt16LE(i,a+1),Object.assign(n,{bytes:3})):i<=4294967295?(o.writeUInt8(254,a),o.writeUInt32LE(i,a+1),Object.assign(n,{bytes:5})):(o.writeUInt8(255,a),o.writeUInt32LE(i>>>0,a+1),o.writeUInt32LE(i/4294967296|0,a+5),Object.assign(n,{bytes:9})),o},hf.decode=function r(n,i){if(!e.isBuffer(n))throw new TypeError("buffer must be a Buffer instance");i||(i=0);const o=n.readUInt8(i);if(o<253)return Object.assign(r,{bytes:1}),o;if(253===o)return Object.assign(r,{bytes:3}),n.readUInt16LE(i+1);if(254===o)return Object.assign(r,{bytes:5}),n.readUInt32LE(i+1);{Object.assign(r,{bytes:9});const e=n.readUInt32LE(i+1),o=4294967296*n.readUInt32LE(i+5)+e;return t(o),o}},hf.encodingLength=r}).call(this,y({}).Buffer);var cf={};(function(e){"use strict";function t(t){const r=t.key.length,n=t.value.length,i=hf.encodingLength(r),o=hf.encodingLength(n),a=e.allocUnsafe(i+r+o+n);return hf.encode(r,a,0),t.key.copy(a,i),hf.encode(n,a,i+r),t.value.copy(a,i+r+o),a}function r(e,t){if("number"!=typeof e)throw new Error("cannot write a non-number as a number");if(e<0)throw new Error("specified a negative value for writing an unsigned value");if(e>t)throw new Error("RangeError: value out of range");if(Math.floor(e)!==e)throw new Error("value has a fractional component")}Object.defineProperty(cf,"__esModule",{value:!0}),cf.range=e=>[...Array(e).keys()],cf.keyValsToBuffer=function(r){const n=r.map(t);return n.push(e.from([0])),e.concat(n)},cf.readUInt64LE=function(e,t){const n=e.readUInt32LE(t);let i=e.readUInt32LE(t+4);return r((i*=4294967296)+n,9007199254740991),i+n},cf.writeUInt64LE=function(e,t,n){return r(t,9007199254740991),e.writeInt32LE(-1&t,n),e.writeUInt32LE(Math.floor(t/4294967296),n+4),n+8}}).call(this,y({}).Buffer);var df={};(function(e){"use strict";Object.defineProperty(df,"__esModule",{value:!0}),df.decode=function(e){if(e.key[0]!==ef.InputTypes.WITNESS_UTXO)throw new Error("Decode Error: could not decode witnessUtxo with key 0x"+e.key.toString("hex"));const t=cf.readUInt64LE(e.value,0);let r=8;const n=hf.decode(e.value,r);r+=hf.encodingLength(n);const i=e.value.slice(r);if(i.length!==n)throw new Error("Decode Error: WITNESS_UTXO script is not proper length");return{script:i,value:t}},df.encode=function(t){const{script:r,value:n}=t,i=hf.encodingLength(r.length),o=e.allocUnsafe(8+i+r.length);return cf.writeUInt64LE(o,n,0),hf.encode(r.length,o,8),r.copy(o,8+i),{key:e.from([ef.InputTypes.WITNESS_UTXO]),value:o}},df.expected="{ script: Buffer; value: number; }",df.check=function(t){return e.isBuffer(t.script)&&"number"==typeof t.value},df.canAdd=function(e,t){return!!e&&!!t&&void 0===e.witnessUtxo&&void 0===e.nonWitnessUtxo}}).call(this,y({}).Buffer);var lf={};(function(e){"use strict";Object.defineProperty(lf,"__esModule",{value:!0});lf.makeConverter=function(t){return{decode:function(e){if(e.key[0]!==t)throw new Error("Decode Error: could not decode bip32Derivation with key 0x"+e.key.toString("hex"));if(34!==e.key.length&&66!==e.key.length||![2,3,4].includes(e.key[1]))throw new Error("Decode Error: bip32Derivation has invalid pubkey in key 0x"+e.key.toString("hex"));if(e.value.length/4%1!=0)throw new Error("Decode Error: Input BIP32_DERIVATION value length should be multiple of 4");const r=e.key.slice(1),n={masterFingerprint:e.value.slice(0,4),pubkey:r,path:"m"};for(const t of(i=e.value.length/4-1,[...Array(i).keys()])){const r=e.value.readUInt32LE(4*t+4),i=!!(2147483648&r),o=2147483647&r;n.path+="/"+o.toString(10)+(i?"'":"")}var i;return n},encode:function(r){const n=e.from([t]),i=e.concat([n,r.pubkey]),o=r.path.split("/"),a=e.allocUnsafe(4*o.length);r.masterFingerprint.copy(a,0);let s=4;return o.slice(1).forEach(e=>{const t="'"===e.slice(-1);let r=2147483647&parseInt(t?e.slice(0,-1):e,10);t&&(r+=2147483648),a.writeUInt32LE(r,s),s+=4}),{key:i,value:a}},check:function(t){return e.isBuffer(t.pubkey)&&e.isBuffer(t.masterFingerprint)&&"string"==typeof t.path&&[33,65].includes(t.pubkey.length)&&[2,3,4].includes(t.pubkey[0])&&4===t.masterFingerprint.length},expected:"{ masterFingerprint: Buffer; pubkey: Buffer; path: string; }",canAddToArray:function(e,t,r){const n=t.pubkey.toString("hex");return!r.has(n)&&(r.add(n),0===e.filter(e=>e.pubkey.equals(t.pubkey)).length)}}}}).call(this,y({}).Buffer);var pf={};Object.defineProperty(pf,"__esModule",{value:!0}),pf.makeChecker=function(e){return function(t){let r;if(e.includes(t.key[0])&&(33!==(r=t.key.slice(1)).length&&65!==r.length||![2,3,4].includes(r[0])))throw new Error("Format Error: invalid pubkey in key 0x"+t.key.toString("hex"));return r}};var bf={};(function(e){"use strict";Object.defineProperty(bf,"__esModule",{value:!0}),bf.makeConverter=function(t){return{decode:function(e){if(e.key[0]!==t)throw new Error("Decode Error: could not decode redeemScript with key 0x"+e.key.toString("hex"));return e.value},encode:function(r){return{key:e.from([t]),value:r}},check:function(t){return e.isBuffer(t)},expected:"Buffer",canAdd:function(e,t){return!!e&&!!t&&void 0===e.redeemScript}}}}).call(this,y({}).Buffer);var yf={};(function(e){"use strict";Object.defineProperty(yf,"__esModule",{value:!0}),yf.makeConverter=function(t){return{decode:function(e){if(e.key[0]!==t)throw new Error("Decode Error: could not decode witnessScript with key 0x"+e.key.toString("hex"));return e.value},encode:function(r){return{key:e.from([t]),value:r}},check:function(t){return e.isBuffer(t)},expected:"Buffer",canAdd:function(e,t){return!!e&&!!t&&void 0===e.witnessScript}}}}).call(this,y({}).Buffer);var gf={};Object.defineProperty(gf,"__esModule",{value:!0});const mf={unsignedTx:rf,globalXpub:tf,checkPubkey:pf.makeChecker([])};gf.globals=mf;const vf={nonWitnessUtxo:af,partialSig:sf,sighashType:uf,finalScriptSig:nf,finalScriptWitness:of,porCommitment:ff,witnessUtxo:df,bip32Derivation:lf.makeConverter(ef.InputTypes.BIP32_DERIVATION),redeemScript:bf.makeConverter(ef.InputTypes.REDEEM_SCRIPT),witnessScript:yf.makeConverter(ef.InputTypes.WITNESS_SCRIPT),checkPubkey:pf.makeChecker([ef.InputTypes.PARTIAL_SIG,ef.InputTypes.BIP32_DERIVATION])};gf.inputs=vf;const wf={bip32Derivation:lf.makeConverter(ef.OutputTypes.BIP32_DERIVATION),redeemScript:bf.makeConverter(ef.OutputTypes.REDEEM_SCRIPT),witnessScript:yf.makeConverter(ef.OutputTypes.WITNESS_SCRIPT),checkPubkey:pf.makeChecker([ef.OutputTypes.BIP32_DERIVATION])};gf.outputs=wf;var _f={};(function(e){"use strict";function t(t,r,n){if(!r.equals(e.from([n])))throw new Error(`Format Error: Invalid ${t} key: ${r.toString("hex")}`)}function r(e,{globalMapKeyVals:r,inputKeyVals:n,outputKeyVals:i}){const o={unsignedTx:e};let a=0;for(const c of r)switch(c.key[0]){case ef.GlobalTypes.UNSIGNED_TX:if(t("global",c.key,ef.GlobalTypes.UNSIGNED_TX),a>0)throw new Error("Format Error: GlobalMap has multiple UNSIGNED_TX");a++;break;case ef.GlobalTypes.GLOBAL_XPUB:void 0===o.globalXpub&&(o.globalXpub=[]),o.globalXpub.push(gf.globals.globalXpub.decode(c));break;default:o.unknownKeyVals||(o.unknownKeyVals=[]),o.unknownKeyVals.push(c)}const s=n.length,f=i.length,u=[],h=[];for(const c of cf.range(s)){const e={};for(const r of n[c])switch(gf.inputs.checkPubkey(r),r.key[0]){case ef.InputTypes.NON_WITNESS_UTXO:if(t("input",r.key,ef.InputTypes.NON_WITNESS_UTXO),void 0!==e.nonWitnessUtxo||void 0!==e.witnessUtxo)throw new Error("Format Error: Input has multiple [NON_]WITNESS_UTXO");e.nonWitnessUtxo=gf.inputs.nonWitnessUtxo.decode(r);break;case ef.InputTypes.WITNESS_UTXO:if(t("input",r.key,ef.InputTypes.WITNESS_UTXO),void 0!==e.nonWitnessUtxo||void 0!==e.witnessUtxo)throw new Error("Format Error: Input has multiple [NON_]WITNESS_UTXO");e.witnessUtxo=gf.inputs.witnessUtxo.decode(r);break;case ef.InputTypes.PARTIAL_SIG:void 0===e.partialSig&&(e.partialSig=[]),e.partialSig.push(gf.inputs.partialSig.decode(r));break;case ef.InputTypes.SIGHASH_TYPE:if(t("input",r.key,ef.InputTypes.SIGHASH_TYPE),void 0!==e.sighashType)throw new Error("Format Error: Input has multiple SIGHASH_TYPE");e.sighashType=gf.inputs.sighashType.decode(r);break;case ef.InputTypes.REDEEM_SCRIPT:if(t("input",r.key,ef.InputTypes.REDEEM_SCRIPT),void 0!==e.redeemScript)throw new Error("Format Error: Input has multiple REDEEM_SCRIPT");e.redeemScript=gf.inputs.redeemScript.decode(r);break;case ef.InputTypes.WITNESS_SCRIPT:if(t("input",r.key,ef.InputTypes.WITNESS_SCRIPT),void 0!==e.witnessScript)throw new Error("Format Error: Input has multiple WITNESS_SCRIPT");e.witnessScript=gf.inputs.witnessScript.decode(r);break;case ef.InputTypes.BIP32_DERIVATION:void 0===e.bip32Derivation&&(e.bip32Derivation=[]),e.bip32Derivation.push(gf.inputs.bip32Derivation.decode(r));break;case ef.InputTypes.FINAL_SCRIPTSIG:t("input",r.key,ef.InputTypes.FINAL_SCRIPTSIG),e.finalScriptSig=gf.inputs.finalScriptSig.decode(r);break;case ef.InputTypes.FINAL_SCRIPTWITNESS:t("input",r.key,ef.InputTypes.FINAL_SCRIPTWITNESS),e.finalScriptWitness=gf.inputs.finalScriptWitness.decode(r);break;case ef.InputTypes.POR_COMMITMENT:t("input",r.key,ef.InputTypes.POR_COMMITMENT),e.porCommitment=gf.inputs.porCommitment.decode(r);break;default:e.unknownKeyVals||(e.unknownKeyVals=[]),e.unknownKeyVals.push(r)}u.push(e)}for(const c of cf.range(f)){const e={};for(const r of i[c])switch(gf.outputs.checkPubkey(r),r.key[0]){case ef.OutputTypes.REDEEM_SCRIPT:if(t("output",r.key,ef.OutputTypes.REDEEM_SCRIPT),void 0!==e.redeemScript)throw new Error("Format Error: Output has multiple REDEEM_SCRIPT");e.redeemScript=gf.outputs.redeemScript.decode(r);break;case ef.OutputTypes.WITNESS_SCRIPT:if(t("output",r.key,ef.OutputTypes.WITNESS_SCRIPT),void 0!==e.witnessScript)throw new Error("Format Error: Output has multiple WITNESS_SCRIPT");e.witnessScript=gf.outputs.witnessScript.decode(r);break;case ef.OutputTypes.BIP32_DERIVATION:void 0===e.bip32Derivation&&(e.bip32Derivation=[]),e.bip32Derivation.push(gf.outputs.bip32Derivation.decode(r));break;default:e.unknownKeyVals||(e.unknownKeyVals=[]),e.unknownKeyVals.push(r)}h.push(e)}return{globalMap:o,inputs:u,outputs:h}}Object.defineProperty(_f,"__esModule",{value:!0}),_f.psbtFromBuffer=function(e,t){let n=0;function i(){const t=hf.decode(e,n);n+=hf.encodingLength(t);const r=e.slice(n,n+t);return n+=t,r}function o(){return{key:i(),value:i()}}function a(){if(n>=e.length)throw new Error("Format Error: Unexpected End of PSBT");const t=0===e.readUInt8(n);return t&&n++,t}if(1886610036!==function(){const t=e.readUInt32BE(n);return n+=4,t}())throw new Error("Format Error: Invalid Magic Number");if(255!==function(){const t=e.readUInt8(n);return n+=1,t}())throw new Error("Format Error: Magic Number must be followed by 0xff separator");const s=[],f={};for(;!a();){const e=o(),t=e.key.toString("hex");if(f[t])throw new Error("Format Error: Keys must be unique for global keymap: key "+t);f[t]=1,s.push(e)}const u=s.filter(e=>e.key[0]===ef.GlobalTypes.UNSIGNED_TX);if(1!==u.length)throw new Error("Format Error: Only one UNSIGNED_TX allowed");const h=t(u[0].value),{inputCount:c,outputCount:d}=h.getInputOutputCounts(),l=[],p=[];for(const r of cf.range(c)){const e={},t=[];for(;!a();){const n=o(),i=n.key.toString("hex");if(e[i])throw new Error("Format Error: Keys must be unique for each input: input index "+r+" key "+i);e[i]=1,t.push(n)}l.push(t)}for(const r of cf.range(d)){const e={},t=[];for(;!a();){const n=o(),i=n.key.toString("hex");if(e[i])throw new Error("Format Error: Keys must be unique for each output: output index "+r+" key "+i);e[i]=1,t.push(n)}p.push(t)}return r(h,{globalMapKeyVals:s,inputKeyVals:l,outputKeyVals:p})},_f.checkKeyBuffer=t,_f.psbtFromKeyVals=r}).call(this,y({}).Buffer);var Sf={};(function(e){"use strict";Object.defineProperty(Sf,"__esModule",{value:!0}),Sf.psbtToBuffer=function({globalMap:t,inputs:r,outputs:i}){const{globalKeyVals:o,inputKeyVals:a,outputKeyVals:s}=n({globalMap:t,inputs:r,outputs:i}),f=cf.keyValsToBuffer(o),u=t=>0===t.length?[e.from([0])]:t.map(cf.keyValsToBuffer),h=u(a),c=u(s),d=e.allocUnsafe(5);return d.writeUIntBE(482972169471,0,5),e.concat([d,f].concat(h,c))};const t=(e,t)=>e.key.compare(t.key);function r(e,r){const n=new Set,i=Object.entries(e).reduce((e,[t,i])=>{if("unknownKeyVals"===t)return e;const o=r[t];if(void 0===o)return e;const a=(Array.isArray(i)?i:[i]).map(o.encode);return a.map(e=>e.key.toString("hex")).forEach(e=>{if(n.has(e))throw new Error("Serialize Error: Duplicate key: "+e);n.add(e)}),e.concat(a)},[]),o=e.unknownKeyVals?e.unknownKeyVals.filter(e=>!n.has(e.key.toString("hex"))):[];return i.concat(o).sort(t)}function n({globalMap:e,inputs:t,outputs:n}){return{globalKeyVals:r(e,gf.globals),inputKeyVals:t.map(e=>r(e,gf.inputs)),outputKeyVals:n.map(e=>r(e,gf.outputs))}}Sf.psbtToKeyVals=n}).call(this,y({}).Buffer);var Ef={};function Mf(e){for(var t in e)Ef.hasOwnProperty(t)||(Ef[t]=e[t])}Object.defineProperty(Ef,"__esModule",{value:!0}),Mf(_f),Mf(Sf);var kf={};function If(e,t,r){return n=>{if(e.has(n))return;const i=r.filter(e=>e.key.toString("hex")===n)[0];t.push(i),e.add(n)}}function Of(e){return e.globalMap.unsignedTx}function Tf(e){const t=new Set;return e.forEach(e=>{const r=e.key.toString("hex");if(t.has(r))throw new Error("Combine: KeyValue Map keys should be unique");t.add(r)}),t}Object.defineProperty(kf,"__esModule",{value:!0}),kf.combine=function(e){const t=e[0],r=Ef.psbtToKeyVals(t),n=e.slice(1);if(0===n.length)throw new Error("Combine: Nothing to combine");const i=Of(t);if(void 0===i)throw new Error("Combine: Self missing transaction");const o=Tf(r.globalKeyVals),a=r.inputKeyVals.map(Tf),s=r.outputKeyVals.map(Tf);for(const f of n){const e=Of(f);if(void 0===e||!e.toBuffer().equals(i.toBuffer()))throw new Error("Combine: One of the Psbts does not have the same transaction.");const t=Ef.psbtToKeyVals(f);Tf(t.globalKeyVals).forEach(If(o,r.globalKeyVals,t.globalKeyVals)),t.inputKeyVals.map(Tf).forEach((e,n)=>e.forEach(If(a[n],r.inputKeyVals[n],t.inputKeyVals[n]))),t.outputKeyVals.map(Tf).forEach((e,n)=>e.forEach(If(s[n],r.outputKeyVals[n],t.outputKeyVals[n])))}return Ef.psbtFromKeyVals(i,{globalMapKeyVals:r.globalKeyVals,inputKeyVals:r.inputKeyVals,outputKeyVals:r.outputKeyVals})};var Af={};(function(e){"use strict";function t(e,t){const r=e[t];if(void 0===r)throw new Error("No input #"+t);return r}function r(e,t,r,n){throw new Error(`Data for ${e} key ${t} is incorrect: Expected ${r} and got ${JSON.stringify(n)}`)}function n(e){return(t,n)=>{for(const i of Object.keys(t)){const o=t[i],{canAdd:a,canAddToArray:s,check:f,expected:u}=gf[e+"s"][i]||{},h=!!s;if(f)if(h){if(!Array.isArray(o)||n[i]&&!Array.isArray(n[i]))throw new Error(`Key type ${i} must be an array`);o.every(f)||r(e,i,u,o);const t=n[i]||[],a=new Set;if(!o.every(e=>s(t,e,a)))throw new Error("Can not add duplicate data to array");n[i]=t.concat(o)}else{if(f(o)||r(e,i,u,o),!a(n,o))throw new Error("Can not add duplicate data to "+e);n[i]=o}}}}Object.defineProperty(Af,"__esModule",{value:!0}),Af.checkForInput=t,Af.checkForOutput=function(e,t){const r=e[t];if(void 0===r)throw new Error("No output #"+t);return r},Af.checkHasKey=function(e,t,r){if(e.key[0]<r)throw new Error("Use the method for your specific key instead of addUnknownKeyVal*");if(t&&0!==t.filter(t=>t.key.equals(e.key)).length)throw new Error("Duplicate Key: "+e.key.toString("hex"))},Af.getEnumLength=function(e){let t=0;return Object.keys(e).forEach(e=>{Number(isNaN(Number(e)))&&t++}),t},Af.inputCheckUncleanFinalized=function(e,t){let r=!1;if(!t.nonWitnessUtxo!=!t.witnessUtxo){const e=!!t.redeemScript,n=!!t.witnessScript,i=!e||!!t.finalScriptSig,o=!n||!!t.finalScriptWitness,a=!!t.finalScriptSig||!!t.finalScriptWitness;r=i&&o&&a}if(!1===r)throw new Error(`Input #${e} has too much or too little data to clean`)},Af.updateGlobal=n("global"),Af.updateInput=n("input"),Af.updateOutput=n("output"),Af.addInputAttributes=function(e,r){const n=t(e,e.length-1);Af.updateInput(r,n)},Af.addOutputAttributes=function(e,r){const n=t(e,e.length-1);Af.updateOutput(r,n)}}).call(this,{isBuffer:ja});var Pf={};(function(e){"use strict";Object.defineProperty(Pf,"__esModule",{value:!0}),Pf.Psbt=class{constructor(e){this.inputs=[],this.outputs=[],this.globalMap={unsignedTx:e}}static fromBase64(t,r){const n=e.from(t,"base64");return this.fromBuffer(n,r)}static fromHex(t,r){const n=e.from(t,"hex");return this.fromBuffer(n,r)}static fromBuffer(e,t){const r=Ef.psbtFromBuffer(e,t),n=new this(r.globalMap.unsignedTx);return Object.assign(n,r),n}toBase64(){return this.toBuffer().toString("base64")}toHex(){return this.toBuffer().toString("hex")}toBuffer(){return Ef.psbtToBuffer(this)}updateGlobal(e){return Af.updateGlobal(e,this.globalMap),this}updateInput(e,t){const r=Af.checkForInput(this.inputs,e);return Af.updateInput(t,r),this}updateOutput(e,t){const r=Af.checkForOutput(this.outputs,e);return Af.updateOutput(t,r),this}addUnknownKeyValToGlobal(e){return Af.checkHasKey(e,this.globalMap.unknownKeyVals,Af.getEnumLength(ef.GlobalTypes)),this.globalMap.unknownKeyVals||(this.globalMap.unknownKeyVals=[]),this.globalMap.unknownKeyVals.push(e),this}addUnknownKeyValToInput(e,t){const r=Af.checkForInput(this.inputs,e);return Af.checkHasKey(t,r.unknownKeyVals,Af.getEnumLength(ef.InputTypes)),r.unknownKeyVals||(r.unknownKeyVals=[]),r.unknownKeyVals.push(t),this}addUnknownKeyValToOutput(e,t){const r=Af.checkForOutput(this.outputs,e);return Af.checkHasKey(t,r.unknownKeyVals,Af.getEnumLength(ef.OutputTypes)),r.unknownKeyVals||(r.unknownKeyVals=[]),r.unknownKeyVals.push(t),this}addInput(e){this.globalMap.unsignedTx.addInput(e),this.inputs.push({unknownKeyVals:[]});const t=e.unknownKeyVals||[],r=this.inputs.length-1;if(!Array.isArray(t))throw new Error("unknownKeyVals must be an Array");return t.forEach(e=>this.addUnknownKeyValToInput(r,e)),Af.addInputAttributes(this.inputs,e),this}addOutput(e){this.globalMap.unsignedTx.addOutput(e),this.outputs.push({unknownKeyVals:[]});const t=e.unknownKeyVals||[],r=this.outputs.length-1;if(!Array.isArray(t))throw new Error("unknownKeyVals must be an Array");return t.forEach(e=>this.addUnknownKeyValToInput(r,e)),Af.addOutputAttributes(this.outputs,e),this}clearFinalizedInput(e){const t=Af.checkForInput(this.inputs,e);Af.inputCheckUncleanFinalized(e,t);for(const r of Object.keys(t))["witnessUtxo","nonWitnessUtxo","finalScriptSig","finalScriptWitness","unknownKeyVals"].includes(r)||delete t[r];return this}combine(...e){const t=kf.combine([this].concat(e));return Object.assign(this,t),this}getTransaction(){return this.globalMap.unsignedTx.toBuffer()}}}).call(this,y({}).Buffer);var xf={};(function(e){"use strict";Object.defineProperty(xf,"__esModule",{value:!0});$a.bitcoin;function t(e){return t=>{try{return e({output:t}),!0}catch(_u){return!1}}}t(qs.p2ms),t(qs.p2pk),t(qs.p2pkh),t(qs.p2wpkh),t(qs.p2wsh);function r(e,t){return(r,n,i)=>{const o=e({redeem:{output:i}}).output;if(!n.equals(o))throw new Error(`${t} for input #${r} doesn't match the scriptPubKey in the prevout`)}}r(qs.p2sh,"Redeem script"),r(qs.p2wsh,"Witness script")}).call(this,y({}).Buffer);var Rf={};function Nf(e){return e===cs.OPS.OP_0||cs.isCanonicalScriptSignature(e)}function Bf(e,t){const r=cs.decompile(e);return!(r.length<2)&&r[0]===cs.OPS.OP_0&&(t?r.slice(1).every(Nf):r.slice(1).every(cs.isCanonicalScriptSignature))}Object.defineProperty(Rf,"__esModule",{value:!0}),Rf.check=Bf,Bf.toJSON=()=>"multisig 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2===t.length&&cs.isCanonicalPubKey(t[0])&&t[1]===cs.OPS.OP_CHECKSIG}Object.defineProperty(Vf,"__esModule",{value:!0}),Vf.check=zf,zf.toJSON=()=>"pubKey output";var Wf={};Object.defineProperty(Wf,"__esModule",{value:!0}),Wf.input=Kf,Wf.output=Vf;var Gf={};function Xf(e){const t=cs.decompile(e);return 2===t.length&&cs.isCanonicalScriptSignature(t[0])&&cs.isCanonicalPubKey(t[1])}Object.defineProperty(Gf,"__esModule",{value:!0}),Gf.check=Xf,Xf.toJSON=()=>"pubKeyHash input";var Jf={};function Yf(e){const t=cs.compile(e);return 25===t.length&&t[0]===cs.OPS.OP_DUP&&t[1]===cs.OPS.OP_HASH160&&20===t[2]&&t[23]===cs.OPS.OP_EQUALVERIFY&&t[24]===cs.OPS.OP_CHECKSIG}Object.defineProperty(Jf,"__esModule",{value:!0}),Jf.check=Yf,Yf.toJSON=()=>"pubKeyHash output";var Qf={};Object.defineProperty(Qf,"__esModule",{value:!0}),Qf.input=Gf,Qf.output=Jf;var Zf={};function $f(e){const t=cs.compile(e);return 22===t.length&&t[0]===cs.OPS.OP_0&&20===t[1]}Object.defineProperty(Zf,"__esModule",{value:!0}),Zf.check=$f,$f.toJSON=()=>"Witness pubKeyHash output";var eu={};function tu(e){const t=cs.compile(e);return 34===t.length&&t[0]===cs.OPS.OP_0&&32===t[1]}Object.defineProperty(eu,"__esModule",{value:!0}),eu.check=tu,tu.toJSON=()=>"Witness scriptHash output";var ru={};(function(e){"use strict";function t(t,r){const n=cs.decompile(t);if(n.length<1)return!1;const i=n[n.length-1];if(!e.isBuffer(i))return!1;const o=cs.decompile(cs.compile(n.slice(0,-1))),a=cs.decompile(i);return!!a&&!!cs.isPushOnly(o)&&(1===n.length?eu.check(a)||Zf.check(a):!(!Qf.input.check(o)||!Qf.output.check(a))||!(!jf.input.check(o,r)||!jf.output.check(a))||!(!Wf.input.check(o)||!Wf.output.check(a)))}Object.defineProperty(ru,"__esModule",{value:!0}),ru.check=t,t.toJSON=()=>"scriptHash input"}).call(this,{isBuffer:ja});var nu={};function iu(e){const t=cs.compile(e);return 23===t.length&&t[0]===cs.OPS.OP_HASH160&&20===t[1]&&t[22]===cs.OPS.OP_EQUAL}Object.defineProperty(nu,"__esModule",{value:!0}),nu.check=iu,iu.toJSON=()=>"scriptHash output";var ou={};Object.defineProperty(ou,"__esModule",{value:!0});var au={};(function(e){"use strict";Object.defineProperty(au,"__esModule",{value:!0});const t=e.from("aa21a9ed","hex");function r(e){const r=cs.compile(e);return r.length>37&&r[0]===cs.OPS.OP_RETURN&&36===r[1]&&r.slice(2,6).equals(t)}au.check=r,r.toJSON=()=>"Witness commitment output",au.encode=function(r){qa(ts.Hash256bit,r);const n=e.allocUnsafe(36);return t.copy(n,0),r.copy(n,4),cs.compile([cs.OPS.OP_RETURN,n])},au.decode=function(e){return qa(r,e),cs.decompile(e)[1].slice(4,36)}}).call(this,y({}).Buffer);var su={};Object.defineProperty(su,"__esModule",{value:!0});var fu={};function uu(e){const t=cs.decompile(e);return 2===t.length&&cs.isCanonicalScriptSignature(t[0])&&(r=t[1],cs.isCanonicalPubKey(r)&&33===r.length);var r}Object.defineProperty(fu,"__esModule",{value:!0}),fu.check=uu,uu.toJSON=()=>"witnessPubKeyHash input";var hu={};Object.defineProperty(hu,"__esModule",{value:!0}),hu.input=fu;var cu={};(function(e){"use strict";function t(t,r){if(qa(qa.Array,t),t.length<1)return!1;const n=t[t.length-1];if(!e.isBuffer(n))return!1;const i=cs.decompile(n);if(!i||0===i.length)return!1;const o=cs.compile(t.slice(0,-1));return!(!Qf.input.check(o)||!Qf.output.check(i))||!(!jf.input.check(o,r)||!jf.output.check(i))||!(!Wf.input.check(o)||!Wf.output.check(i))}Object.defineProperty(cu,"__esModule",{value:!0}),cu.check=t,t.toJSON=()=>"witnessScriptHash input"}).call(this,{isBuffer:ja});var du={};Object.defineProperty(du,"__esModule",{value:!0}),du.input=cu;var lu={};Object.defineProperty(lu,"__esModule",{value:!0});const pu={P2MS:"multisig",NONSTANDARD:"nonstandard",NULLDATA:"nulldata",P2PK:"pubkey",P2PKH:"pubkeyhash",P2SH:"scripthash",P2WPKH:"witnesspubkeyhash",P2WSH:"witnessscripthash",WITNESS_COMMITMENT:"witnesscommitment"};lu.types=pu,lu.output=function(e){if(hu.output.check(e))return pu.P2WPKH;if(du.output.check(e))return pu.P2WSH;if(Qf.output.check(e))return pu.P2PKH;if(ou.output.check(e))return pu.P2SH;const t=cs.decompile(e);if(!t)throw new TypeError("Invalid script");return jf.output.check(t)?pu.P2MS:Wf.output.check(t)?pu.P2PK:su.output.check(t)?pu.WITNESS_COMMITMENT:Df.output.check(t)?pu.NULLDATA:pu.NONSTANDARD},lu.input=function(e,t){const r=cs.decompile(e);if(!r)throw new TypeError("Invalid script");return Qf.input.check(r)?pu.P2PKH:ou.input.check(r,t)?pu.P2SH:jf.input.check(r,t)?pu.P2MS:Wf.input.check(r)?pu.P2PK:pu.NONSTANDARD},lu.witness=function(e,t){const r=cs.decompile(e);if(!r)throw new TypeError("Invalid script");return hu.input.check(r)?pu.P2WPKH:du.input.check(r,t)?pu.P2WSH:pu.NONSTANDARD};var bu={};(function(e){"use strict";Object.defineProperty(bu,"__esModule",{value:!0});lu.types,new Set(["p2pkh","p2pk","p2wpkh","p2ms","p2sh-p2pkh","p2sh-p2pk","p2sh-p2wpkh","p2sh-p2ms","p2wsh-p2pkh","p2wsh-p2pk","p2wsh-p2ms","p2sh-p2wsh-p2pkh","p2sh-p2wsh-p2pk","p2sh-p2wsh-p2ms"])}).call(this,y({}).Buffer);var yu={};Object.defineProperty(yu,"__esModule",{value:!0}),yu.crypto=_s,cs.OPS,Js.Transaction;var gu={};Object.defineProperty(gu,"__esModule",{value:!0}),gu.compose3=gu.sha256Hash=void 0,gu.sha256Hash=function(e){return yu.crypto.sha256(e)},gu.compose3=function(e,t,r){return function(n){return e(t(r(n)))}};var mu={};(function(e){"use strict";Object.defineProperty(mu,"__esModule",{value:!0}),mu.encodeUR=void 0;var t=p({}),r=function(e,t){return void 0===t&&(t="bytes"),"ur:"+t+"/"+e};mu.encodeUR=function(n,i){void 0===i&&(i=200);var o=O.encodeSimpleCBOR(n),a=t.encodeBc32Data(o),s=gu.sha256Hash(e.from(o,"hex")).toString("hex"),f=t.encodeBc32Data(s);return function(e,t,n){return void 0===n&&(n="bytes"),1===e.length?[r(e[0])]:e.map((function(i,o){return gu.compose3((function(e){return r(e,n)}),(function(t){return function(e,t,r){return t+1+"of"+r+"/"+e}(t,o,e.length)}),(function(e){return function(e,t){return t+"/"+e}(e,t)}))(i)}))}(a.match(new RegExp(".{1,"+i+"}","g")),f,"bytes")}}).call(this,y({}).Buffer);var vu={};(function(e){"use strict";Object.defineProperty(vu,"__esModule",{value:!0}),vu.extractSingleWorkload=vu.decodeUR=void 0;var t=p({}),r=function(e){var t=e.toUpperCase().split("OF");if(2!==t.length)throw new Error("invalid sequence: "+e);return[+t[0],+t[1]]},n=function(r,n){if(t.decodeBc32Data(r)!==gu.sha256Hash(e.from(t.decodeBc32Data(n),"hex")).toString("hex"))throw new Error("invalid digest: \n digest:"+r+" \n payload:"+n)},i=function(e,t){if(void 0===t&&(t="bytes"),e.toUpperCase()!==("ur:"+t).toUpperCase())throw new Error("invalid UR header: "+e)};vu.decodeUR=function(e,o){void 0===o&&(o="bytes");var a=function(e,t){void 0===t&&(t="bytes");try{return 1===e.length?function(e,t){void 0===t&&(t="bytes");var o=e.split("/");switch(o.length){case 2:return i(o[0],t),o[1];case 3:i(o[0],t);var a=o[1],s=o[2];return n(a,s),s;case 4:return i(o[0],t),r(o[1]),a=o[2],s=o[3],n(a,s),s;default:throw new Error("invalid workload pieces length: expect 2 / 3 / 4 bug got "+o.length)}}(e[0],t):function(e,t){void 0===t&&(t="bytes");var o=e.length,a=new Array(o).fill(""),s="";e.forEach((function(e){var n=e.split("/");i(n[0],t);var f=r(n[1]),u=f[0],h=f[1];if(h!==o)throw new Error("invalid workload: "+e+", total "+h+" not equal workloads length "+o);if(s&&s!==n[2])throw new Error("invalid workload: "+e+", checksum changed "+s+", "+n[2]);if(s=n[2],a[u-1])throw new Error("invalid workload: "+e+", index "+u+" has already been set");a[u-1]=n[3]}));var f=a.join("");return n(s,f),f}(e,t)}catch(Su){throw new Error("invalid workloads: "+e+"\n "+Su)}}(e,o),s=t.decodeBc32Data(a);return O.decodeSimpleCBOR(s)},vu.extractSingleWorkload=function(e){var t=e.toUpperCase().split("/");switch(t.length){case 2:case 3:return[1,1];case 4:return r(t[1]);default:throw new Error("invalid workload pieces length: expect 2 / 3 / 4 bug got "+t.length)}}}).call(this,y({}).Buffer);var wu={};return Object.defineProperty(wu,"__esModule",{value:!0}),Object.defineProperty(wu,"encodeUR",{enumerable:!0,get:function(){return mu.encodeUR}}),Object.defineProperty(wu,"decodeUR",{enumerable:!0,get:function(){return vu.decodeUR}}),Object.defineProperty(wu,"extractSingleWorkload",{enumerable:!0,get:function(){return vu.extractSingleWorkload}}),wu}));
\ No newline at end of file
diff --git a/BTCPayServer/wwwroot/vendor/vue-qrcode/vue-qrcode.common.js b/BTCPayServer/wwwroot/vendor/vue-qrcode/vue-qrcode.common.js
deleted file mode 100644
index 013f5d70b..000000000
--- a/BTCPayServer/wwwroot/vendor/vue-qrcode/vue-qrcode.common.js
+++ /dev/null
@@ -1,3468 +0,0 @@
-/*!
- * vue-qrcode v1.0.0
- * https://fengyuanchen.github.io/vue-qrcode
- *
- * Copyright 2018-present Chen Fengyuan
- * Released under the MIT license
- *
- * Date: 2018-10-21T13:04:02.951Z
- */
-
-'use strict';
-
-var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
-
-function commonjsRequire () {
-	throw new Error('Dynamic requires are not currently supported by rollup-plugin-commonjs');
-}
-
-function createCommonjsModule(fn, module) {
-	return module = { exports: {} }, fn(module, module.exports), module.exports;
-}
-
-var qrcode = createCommonjsModule(function (module, exports) {
-(function(f){{module.exports=f();}})(function(){return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof commonjsRequire&&commonjsRequire;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t);}return n[i].exports}for(var u="function"==typeof commonjsRequire&&commonjsRequire,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
-/**
- * Alignment pattern are fixed reference pattern in defined positions
- * in a matrix symbology, which enables the decode software to re-synchronise
- * the coordinate mapping of the image modules in the event of moderate amounts
- * of distortion of the image.
- *
- * Alignment patterns are present only in QR Code symbols of version 2 or larger
- * and their number depends on the symbol version.
- */
-
-var getSymbolSize = require('./utils').getSymbolSize;
-
-/**
- * Calculate the row/column coordinates of the center module of each alignment pattern
- * for the specified QR Code version.
- *
- * The alignment patterns are positioned symmetrically on either side of the diagonal
- * running from the top left corner of the symbol to the bottom right corner.
- *
- * Since positions are simmetrical only half of the coordinates are returned.
- * Each item of the array will represent in turn the x and y coordinate.
- * @see {@link getPositions}
- *
- * @param  {Number} version QR Code version
- * @return {Array}          Array of coordinate
- */
-exports.getRowColCoords = function getRowColCoords (version) {
-  if (version === 1) return []
-
-  var posCount = Math.floor(version / 7) + 2;
-  var size = getSymbolSize(version);
-  var intervals = size === 145 ? 26 : Math.ceil((size - 13) / (2 * posCount - 2)) * 2;
-  var positions = [size - 7]; // Last coord is always (size - 7)
-
-  for (var i = 1; i < posCount - 1; i++) {
-    positions[i] = positions[i - 1] - intervals;
-  }
-
-  positions.push(6); // First coord is always 6
-
-  return positions.reverse()
-};
-
-/**
- * Returns an array containing the positions of each alignment pattern.
- * Each array's element represent the center point of the pattern as (x, y) coordinates
- *
- * Coordinates are calculated expanding the row/column coordinates returned by {@link getRowColCoords}
- * and filtering out the items that overlaps with finder pattern
- *
- * @example
- * For a Version 7 symbol {@link getRowColCoords} returns values 6, 22 and 38.
- * The alignment patterns, therefore, are to be centered on (row, column)
- * positions (6,22), (22,6), (22,22), (22,38), (38,22), (38,38).
- * Note that the coordinates (6,6), (6,38), (38,6) are occupied by finder patterns
- * and are not therefore used for alignment patterns.
- *
- * var pos = getPositions(7)
- * // [[6,22], [22,6], [22,22], [22,38], [38,22], [38,38]]
- *
- * @param  {Number} version QR Code version
- * @return {Array}          Array of coordinates
- */
-exports.getPositions = function getPositions (version) {
-  var coords = [];
-  var pos = exports.getRowColCoords(version);
-  var posLength = pos.length;
-
-  for (var i = 0; i < posLength; i++) {
-    for (var j = 0; j < posLength; j++) {
-      // Skip if position is occupied by finder patterns
-      if ((i === 0 && j === 0) ||             // top-left
-          (i === 0 && j === posLength - 1) || // bottom-left
-          (i === posLength - 1 && j === 0)) { // top-right
-        continue
-      }
-
-      coords.push([pos[i], pos[j]]);
-    }
-  }
-
-  return coords
-};
-
-},{"./utils":20}],2:[function(require,module,exports){
-var Mode = require('./mode');
-
-/**
- * Array of characters available in alphanumeric mode
- *
- * As per QR Code specification, to each character
- * is assigned a value from 0 to 44 which in this case coincides
- * with the array index
- *
- * @type {Array}
- */
-var ALPHA_NUM_CHARS = [
-  '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
-  'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
-  'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
-  ' ', '$', '%', '*', '+', '-', '.', '/', ':'
-];
-
-function AlphanumericData (data) {
-  this.mode = Mode.ALPHANUMERIC;
-  this.data = data;
-}
-
-AlphanumericData.getBitsLength = function getBitsLength (length) {
-  return 11 * Math.floor(length / 2) + 6 * (length % 2)
-};
-
-AlphanumericData.prototype.getLength = function getLength () {
-  return this.data.length
-};
-
-AlphanumericData.prototype.getBitsLength = function getBitsLength () {
-  return AlphanumericData.getBitsLength(this.data.length)
-};
-
-AlphanumericData.prototype.write = function write (bitBuffer) {
-  var i;
-
-  // Input data characters are divided into groups of two characters
-  // and encoded as 11-bit binary codes.
-  for (i = 0; i + 2 <= this.data.length; i += 2) {
-    // The character value of the first character is multiplied by 45
-    var value = ALPHA_NUM_CHARS.indexOf(this.data[i]) * 45;
-
-    // The character value of the second digit is added to the product
-    value += ALPHA_NUM_CHARS.indexOf(this.data[i + 1]);
-
-    // The sum is then stored as 11-bit binary number
-    bitBuffer.put(value, 11);
-  }
-
-  // If the number of input data characters is not a multiple of two,
-  // the character value of the final character is encoded as a 6-bit binary number.
-  if (this.data.length % 2) {
-    bitBuffer.put(ALPHA_NUM_CHARS.indexOf(this.data[i]), 6);
-  }
-};
-
-module.exports = AlphanumericData;
-
-},{"./mode":13}],3:[function(require,module,exports){
-function BitBuffer () {
-  this.buffer = [];
-  this.length = 0;
-}
-
-BitBuffer.prototype = {
-
-  get: function (index) {
-    var bufIndex = Math.floor(index / 8);
-    return ((this.buffer[bufIndex] >>> (7 - index % 8)) & 1) === 1
-  },
-
-  put: function (num, length) {
-    for (var i = 0; i < length; i++) {
-      this.putBit(((num >>> (length - i - 1)) & 1) === 1);
-    }
-  },
-
-  getLengthInBits: function () {
-    return this.length
-  },
-
-  putBit: function (bit) {
-    var bufIndex = Math.floor(this.length / 8);
-    if (this.buffer.length <= bufIndex) {
-      this.buffer.push(0);
-    }
-
-    if (bit) {
-      this.buffer[bufIndex] |= (0x80 >>> (this.length % 8));
-    }
-
-    this.length++;
-  }
-};
-
-module.exports = BitBuffer;
-
-},{}],4:[function(require,module,exports){
-var Buffer = require('../utils/buffer');
-
-/**
- * Helper class to handle QR Code symbol modules
- *
- * @param {Number} size Symbol size
- */
-function BitMatrix (size) {
-  if (!size || size < 1) {
-    throw new Error('BitMatrix size must be defined and greater than 0')
-  }
-
-  this.size = size;
-  this.data = new Buffer(size * size);
-  this.data.fill(0);
-  this.reservedBit = new Buffer(size * size);
-  this.reservedBit.fill(0);
-}
-
-/**
- * Set bit value at specified location
- * If reserved flag is set, this bit will be ignored during masking process
- *
- * @param {Number}  row
- * @param {Number}  col
- * @param {Boolean} value
- * @param {Boolean} reserved
- */
-BitMatrix.prototype.set = function (row, col, value, reserved) {
-  var index = row * this.size + col;
-  this.data[index] = value;
-  if (reserved) this.reservedBit[index] = true;
-};
-
-/**
- * Returns bit value at specified location
- *
- * @param  {Number}  row
- * @param  {Number}  col
- * @return {Boolean}
- */
-BitMatrix.prototype.get = function (row, col) {
-  return this.data[row * this.size + col]
-};
-
-/**
- * Applies xor operator at specified location
- * (used during masking process)
- *
- * @param {Number}  row
- * @param {Number}  col
- * @param {Boolean} value
- */
-BitMatrix.prototype.xor = function (row, col, value) {
-  this.data[row * this.size + col] ^= value;
-};
-
-/**
- * Check if bit at specified location is reserved
- *
- * @param {Number}   row
- * @param {Number}   col
- * @return {Boolean}
- */
-BitMatrix.prototype.isReserved = function (row, col) {
-  return this.reservedBit[row * this.size + col]
-};
-
-module.exports = BitMatrix;
-
-},{"../utils/buffer":27}],5:[function(require,module,exports){
-var Buffer = require('../utils/buffer');
-var Mode = require('./mode');
-
-function ByteData (data) {
-  this.mode = Mode.BYTE;
-  this.data = new Buffer(data);
-}
-
-ByteData.getBitsLength = function getBitsLength (length) {
-  return length * 8
-};
-
-ByteData.prototype.getLength = function getLength () {
-  return this.data.length
-};
-
-ByteData.prototype.getBitsLength = function getBitsLength () {
-  return ByteData.getBitsLength(this.data.length)
-};
-
-ByteData.prototype.write = function (bitBuffer) {
-  for (var i = 0, l = this.data.length; i < l; i++) {
-    bitBuffer.put(this.data[i], 8);
-  }
-};
-
-module.exports = ByteData;
-
-},{"../utils/buffer":27,"./mode":13}],6:[function(require,module,exports){
-var ECLevel = require('./error-correction-level');
-
-var EC_BLOCKS_TABLE = [
-// L  M  Q  H
-  1, 1, 1, 1,
-  1, 1, 1, 1,
-  1, 1, 2, 2,
-  1, 2, 2, 4,
-  1, 2, 4, 4,
-  2, 4, 4, 4,
-  2, 4, 6, 5,
-  2, 4, 6, 6,
-  2, 5, 8, 8,
-  4, 5, 8, 8,
-  4, 5, 8, 11,
-  4, 8, 10, 11,
-  4, 9, 12, 16,
-  4, 9, 16, 16,
-  6, 10, 12, 18,
-  6, 10, 17, 16,
-  6, 11, 16, 19,
-  6, 13, 18, 21,
-  7, 14, 21, 25,
-  8, 16, 20, 25,
-  8, 17, 23, 25,
-  9, 17, 23, 34,
-  9, 18, 25, 30,
-  10, 20, 27, 32,
-  12, 21, 29, 35,
-  12, 23, 34, 37,
-  12, 25, 34, 40,
-  13, 26, 35, 42,
-  14, 28, 38, 45,
-  15, 29, 40, 48,
-  16, 31, 43, 51,
-  17, 33, 45, 54,
-  18, 35, 48, 57,
-  19, 37, 51, 60,
-  19, 38, 53, 63,
-  20, 40, 56, 66,
-  21, 43, 59, 70,
-  22, 45, 62, 74,
-  24, 47, 65, 77,
-  25, 49, 68, 81
-];
-
-var EC_CODEWORDS_TABLE = [
-// L  M  Q  H
-  7, 10, 13, 17,
-  10, 16, 22, 28,
-  15, 26, 36, 44,
-  20, 36, 52, 64,
-  26, 48, 72, 88,
-  36, 64, 96, 112,
-  40, 72, 108, 130,
-  48, 88, 132, 156,
-  60, 110, 160, 192,
-  72, 130, 192, 224,
-  80, 150, 224, 264,
-  96, 176, 260, 308,
-  104, 198, 288, 352,
-  120, 216, 320, 384,
-  132, 240, 360, 432,
-  144, 280, 408, 480,
-  168, 308, 448, 532,
-  180, 338, 504, 588,
-  196, 364, 546, 650,
-  224, 416, 600, 700,
-  224, 442, 644, 750,
-  252, 476, 690, 816,
-  270, 504, 750, 900,
-  300, 560, 810, 960,
-  312, 588, 870, 1050,
-  336, 644, 952, 1110,
-  360, 700, 1020, 1200,
-  390, 728, 1050, 1260,
-  420, 784, 1140, 1350,
-  450, 812, 1200, 1440,
-  480, 868, 1290, 1530,
-  510, 924, 1350, 1620,
-  540, 980, 1440, 1710,
-  570, 1036, 1530, 1800,
-  570, 1064, 1590, 1890,
-  600, 1120, 1680, 1980,
-  630, 1204, 1770, 2100,
-  660, 1260, 1860, 2220,
-  720, 1316, 1950, 2310,
-  750, 1372, 2040, 2430
-];
-
-/**
- * Returns the number of error correction block that the QR Code should contain
- * for the specified version and error correction level.
- *
- * @param  {Number} version              QR Code version
- * @param  {Number} errorCorrectionLevel Error correction level
- * @return {Number}                      Number of error correction blocks
- */
-exports.getBlocksCount = function getBlocksCount (version, errorCorrectionLevel) {
-  switch (errorCorrectionLevel) {
-    case ECLevel.L:
-      return EC_BLOCKS_TABLE[(version - 1) * 4 + 0]
-    case ECLevel.M:
-      return EC_BLOCKS_TABLE[(version - 1) * 4 + 1]
-    case ECLevel.Q:
-      return EC_BLOCKS_TABLE[(version - 1) * 4 + 2]
-    case ECLevel.H:
-      return EC_BLOCKS_TABLE[(version - 1) * 4 + 3]
-    default:
-      return undefined
-  }
-};
-
-/**
- * Returns the number of error correction codewords to use for the specified
- * version and error correction level.
- *
- * @param  {Number} version              QR Code version
- * @param  {Number} errorCorrectionLevel Error correction level
- * @return {Number}                      Number of error correction codewords
- */
-exports.getTotalCodewordsCount = function getTotalCodewordsCount (version, errorCorrectionLevel) {
-  switch (errorCorrectionLevel) {
-    case ECLevel.L:
-      return EC_CODEWORDS_TABLE[(version - 1) * 4 + 0]
-    case ECLevel.M:
-      return EC_CODEWORDS_TABLE[(version - 1) * 4 + 1]
-    case ECLevel.Q:
-      return EC_CODEWORDS_TABLE[(version - 1) * 4 + 2]
-    case ECLevel.H:
-      return EC_CODEWORDS_TABLE[(version - 1) * 4 + 3]
-    default:
-      return undefined
-  }
-};
-
-},{"./error-correction-level":7}],7:[function(require,module,exports){
-exports.L = { bit: 1 };
-exports.M = { bit: 0 };
-exports.Q = { bit: 3 };
-exports.H = { bit: 2 };
-
-function fromString (string) {
-  if (typeof string !== 'string') {
-    throw new Error('Param is not a string')
-  }
-
-  var lcStr = string.toLowerCase();
-
-  switch (lcStr) {
-    case 'l':
-    case 'low':
-      return exports.L
-
-    case 'm':
-    case 'medium':
-      return exports.M
-
-    case 'q':
-    case 'quartile':
-      return exports.Q
-
-    case 'h':
-    case 'high':
-      return exports.H
-
-    default:
-      throw new Error('Unknown EC Level: ' + string)
-  }
-}
-
-exports.isValid = function isValid (level) {
-  return level && typeof level.bit !== 'undefined' &&
-    level.bit >= 0 && level.bit < 4
-};
-
-exports.from = function from (value, defaultValue) {
-  if (exports.isValid(value)) {
-    return value
-  }
-
-  try {
-    return fromString(value)
-  } catch (e) {
-    return defaultValue
-  }
-};
-
-},{}],8:[function(require,module,exports){
-var getSymbolSize = require('./utils').getSymbolSize;
-var FINDER_PATTERN_SIZE = 7;
-
-/**
- * Returns an array containing the positions of each finder pattern.
- * Each array's element represent the top-left point of the pattern as (x, y) coordinates
- *
- * @param  {Number} version QR Code version
- * @return {Array}          Array of coordinates
- */
-exports.getPositions = function getPositions (version) {
-  var size = getSymbolSize(version);
-
-  return [
-    // top-left
-    [0, 0],
-    // top-right
-    [size - FINDER_PATTERN_SIZE, 0],
-    // bottom-left
-    [0, size - FINDER_PATTERN_SIZE]
-  ]
-};
-
-},{"./utils":20}],9:[function(require,module,exports){
-var Utils = require('./utils');
-
-var G15 = (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0);
-var G15_MASK = (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1);
-var G15_BCH = Utils.getBCHDigit(G15);
-
-/**
- * Returns format information with relative error correction bits
- *
- * The format information is a 15-bit sequence containing 5 data bits,
- * with 10 error correction bits calculated using the (15, 5) BCH code.
- *
- * @param  {Number} errorCorrectionLevel Error correction level
- * @param  {Number} mask                 Mask pattern
- * @return {Number}                      Encoded format information bits
- */
-exports.getEncodedBits = function getEncodedBits (errorCorrectionLevel, mask) {
-  var data = ((errorCorrectionLevel.bit << 3) | mask);
-  var d = data << 10;
-
-  while (Utils.getBCHDigit(d) - G15_BCH >= 0) {
-    d ^= (G15 << (Utils.getBCHDigit(d) - G15_BCH));
-  }
-
-  // xor final data with mask pattern in order to ensure that
-  // no combination of Error Correction Level and data mask pattern
-  // will result in an all-zero data string
-  return ((data << 10) | d) ^ G15_MASK
-};
-
-},{"./utils":20}],10:[function(require,module,exports){
-var Buffer = require('../utils/buffer');
-
-var EXP_TABLE = new Buffer(512);
-var LOG_TABLE = new Buffer(256)
-
-/**
- * Precompute the log and anti-log tables for faster computation later
- *
- * For each possible value in the galois field 2^8, we will pre-compute
- * the logarithm and anti-logarithm (exponential) of this value
- *
- * ref {@link https://en.wikiversity.org/wiki/Reed%E2%80%93Solomon_codes_for_coders#Introduction_to_mathematical_fields}
- */
-;(function initTables () {
-  var x = 1;
-  for (var i = 0; i < 255; i++) {
-    EXP_TABLE[i] = x;
-    LOG_TABLE[x] = i;
-
-    x <<= 1; // multiply by 2
-
-    // The QR code specification says to use byte-wise modulo 100011101 arithmetic.
-    // This means that when a number is 256 or larger, it should be XORed with 0x11D.
-    if (x & 0x100) { // similar to x >= 256, but a lot faster (because 0x100 == 256)
-      x ^= 0x11D;
-    }
-  }
-
-  // Optimization: double the size of the anti-log table so that we don't need to mod 255 to
-  // stay inside the bounds (because we will mainly use this table for the multiplication of
-  // two GF numbers, no more).
-  // @see {@link mul}
-  for (i = 255; i < 512; i++) {
-    EXP_TABLE[i] = EXP_TABLE[i - 255];
-  }
-}());
-
-/**
- * Returns log value of n inside Galois Field
- *
- * @param  {Number} n
- * @return {Number}
- */
-exports.log = function log (n) {
-  if (n < 1) throw new Error('log(' + n + ')')
-  return LOG_TABLE[n]
-};
-
-/**
- * Returns anti-log value of n inside Galois Field
- *
- * @param  {Number} n
- * @return {Number}
- */
-exports.exp = function exp (n) {
-  return EXP_TABLE[n]
-};
-
-/**
- * Multiplies two number inside Galois Field
- *
- * @param  {Number} x
- * @param  {Number} y
- * @return {Number}
- */
-exports.mul = function mul (x, y) {
-  if (x === 0 || y === 0) return 0
-
-  // should be EXP_TABLE[(LOG_TABLE[x] + LOG_TABLE[y]) % 255] if EXP_TABLE wasn't oversized
-  // @see {@link initTables}
-  return EXP_TABLE[LOG_TABLE[x] + LOG_TABLE[y]]
-};
-
-},{"../utils/buffer":27}],11:[function(require,module,exports){
-var Mode = require('./mode');
-var Utils = require('./utils');
-
-function KanjiData (data) {
-  this.mode = Mode.KANJI;
-  this.data = data;
-}
-
-KanjiData.getBitsLength = function getBitsLength (length) {
-  return length * 13
-};
-
-KanjiData.prototype.getLength = function getLength () {
-  return this.data.length
-};
-
-KanjiData.prototype.getBitsLength = function getBitsLength () {
-  return KanjiData.getBitsLength(this.data.length)
-};
-
-KanjiData.prototype.write = function (bitBuffer) {
-  var i;
-
-  // In the Shift JIS system, Kanji characters are represented by a two byte combination.
-  // These byte values are shifted from the JIS X 0208 values.
-  // JIS X 0208 gives details of the shift coded representation.
-  for (i = 0; i < this.data.length; i++) {
-    var value = Utils.toSJIS(this.data[i]);
-
-    // For characters with Shift JIS values from 0x8140 to 0x9FFC:
-    if (value >= 0x8140 && value <= 0x9FFC) {
-      // Subtract 0x8140 from Shift JIS value
-      value -= 0x8140;
-
-    // For characters with Shift JIS values from 0xE040 to 0xEBBF
-    } else if (value >= 0xE040 && value <= 0xEBBF) {
-      // Subtract 0xC140 from Shift JIS value
-      value -= 0xC140;
-    } else {
-      throw new Error(
-        'Invalid SJIS character: ' + this.data[i] + '\n' +
-        'Make sure your charset is UTF-8')
-    }
-
-    // Multiply most significant byte of result by 0xC0
-    // and add least significant byte to product
-    value = (((value >>> 8) & 0xff) * 0xC0) + (value & 0xff);
-
-    // Convert result to a 13-bit binary string
-    bitBuffer.put(value, 13);
-  }
-};
-
-module.exports = KanjiData;
-
-},{"./mode":13,"./utils":20}],12:[function(require,module,exports){
-/**
- * Data mask pattern reference
- * @type {Object}
- */
-exports.Patterns = {
-  PATTERN000: 0,
-  PATTERN001: 1,
-  PATTERN010: 2,
-  PATTERN011: 3,
-  PATTERN100: 4,
-  PATTERN101: 5,
-  PATTERN110: 6,
-  PATTERN111: 7
-};
-
-/**
- * Weighted penalty scores for the undesirable features
- * @type {Object}
- */
-var PenaltyScores = {
-  N1: 3,
-  N2: 3,
-  N3: 40,
-  N4: 10
-};
-
-/**
- * Check if mask pattern value is valid
- *
- * @param  {Number}  mask    Mask pattern
- * @return {Boolean}         true if valid, false otherwise
- */
-exports.isValid = function isValid (mask) {
-  return mask != null && mask !== '' && !isNaN(mask) && mask >= 0 && mask <= 7
-};
-
-/**
- * Returns mask pattern from a value.
- * If value is not valid, returns undefined
- *
- * @param  {Number|String} value        Mask pattern value
- * @return {Number}                     Valid mask pattern or undefined
- */
-exports.from = function from (value) {
-  return exports.isValid(value) ? parseInt(value, 10) : undefined
-};
-
-/**
-* Find adjacent modules in row/column with the same color
-* and assign a penalty value.
-*
-* Points: N1 + i
-* i is the amount by which the number of adjacent modules of the same color exceeds 5
-*/
-exports.getPenaltyN1 = function getPenaltyN1 (data) {
-  var size = data.size;
-  var points = 0;
-  var sameCountCol = 0;
-  var sameCountRow = 0;
-  var lastCol = null;
-  var lastRow = null;
-
-  for (var row = 0; row < size; row++) {
-    sameCountCol = sameCountRow = 0;
-    lastCol = lastRow = null;
-
-    for (var col = 0; col < size; col++) {
-      var module = data.get(row, col);
-      if (module === lastCol) {
-        sameCountCol++;
-      } else {
-        if (sameCountCol >= 5) points += PenaltyScores.N1 + (sameCountCol - 5);
-        lastCol = module;
-        sameCountCol = 1;
-      }
-
-      module = data.get(col, row);
-      if (module === lastRow) {
-        sameCountRow++;
-      } else {
-        if (sameCountRow >= 5) points += PenaltyScores.N1 + (sameCountRow - 5);
-        lastRow = module;
-        sameCountRow = 1;
-      }
-    }
-
-    if (sameCountCol >= 5) points += PenaltyScores.N1 + (sameCountCol - 5);
-    if (sameCountRow >= 5) points += PenaltyScores.N1 + (sameCountRow - 5);
-  }
-
-  return points
-};
-
-/**
- * Find 2x2 blocks with the same color and assign a penalty value
- *
- * Points: N2 * (m - 1) * (n - 1)
- */
-exports.getPenaltyN2 = function getPenaltyN2 (data) {
-  var size = data.size;
-  var points = 0;
-
-  for (var row = 0; row < size - 1; row++) {
-    for (var col = 0; col < size - 1; col++) {
-      var last = data.get(row, col) +
-        data.get(row, col + 1) +
-        data.get(row + 1, col) +
-        data.get(row + 1, col + 1);
-
-      if (last === 4 || last === 0) points++;
-    }
-  }
-
-  return points * PenaltyScores.N2
-};
-
-/**
- * Find 1:1:3:1:1 ratio (dark:light:dark:light:dark) pattern in row/column,
- * preceded or followed by light area 4 modules wide
- *
- * Points: N3 * number of pattern found
- */
-exports.getPenaltyN3 = function getPenaltyN3 (data) {
-  var size = data.size;
-  var points = 0;
-  var bitsCol = 0;
-  var bitsRow = 0;
-
-  for (var row = 0; row < size; row++) {
-    bitsCol = bitsRow = 0;
-    for (var col = 0; col < size; col++) {
-      bitsCol = ((bitsCol << 1) & 0x7FF) | data.get(row, col);
-      if (col >= 10 && (bitsCol === 0x5D0 || bitsCol === 0x05D)) points++;
-
-      bitsRow = ((bitsRow << 1) & 0x7FF) | data.get(col, row);
-      if (col >= 10 && (bitsRow === 0x5D0 || bitsRow === 0x05D)) points++;
-    }
-  }
-
-  return points * PenaltyScores.N3
-};
-
-/**
- * Calculate proportion of dark modules in entire symbol
- *
- * Points: N4 * k
- *
- * k is the rating of the deviation of the proportion of dark modules
- * in the symbol from 50% in steps of 5%
- */
-exports.getPenaltyN4 = function getPenaltyN4 (data) {
-  var darkCount = 0;
-  var modulesCount = data.data.length;
-
-  for (var i = 0; i < modulesCount; i++) darkCount += data.data[i];
-
-  var k = Math.abs(Math.ceil((darkCount * 100 / modulesCount) / 5) - 10);
-
-  return k * PenaltyScores.N4
-};
-
-/**
- * Return mask value at given position
- *
- * @param  {Number} maskPattern Pattern reference value
- * @param  {Number} i           Row
- * @param  {Number} j           Column
- * @return {Boolean}            Mask value
- */
-function getMaskAt (maskPattern, i, j) {
-  switch (maskPattern) {
-    case exports.Patterns.PATTERN000: return (i + j) % 2 === 0
-    case exports.Patterns.PATTERN001: return i % 2 === 0
-    case exports.Patterns.PATTERN010: return j % 3 === 0
-    case exports.Patterns.PATTERN011: return (i + j) % 3 === 0
-    case exports.Patterns.PATTERN100: return (Math.floor(i / 2) + Math.floor(j / 3)) % 2 === 0
-    case exports.Patterns.PATTERN101: return (i * j) % 2 + (i * j) % 3 === 0
-    case exports.Patterns.PATTERN110: return ((i * j) % 2 + (i * j) % 3) % 2 === 0
-    case exports.Patterns.PATTERN111: return ((i * j) % 3 + (i + j) % 2) % 2 === 0
-
-    default: throw new Error('bad maskPattern:' + maskPattern)
-  }
-}
-
-/**
- * Apply a mask pattern to a BitMatrix
- *
- * @param  {Number}    pattern Pattern reference number
- * @param  {BitMatrix} data    BitMatrix data
- */
-exports.applyMask = function applyMask (pattern, data) {
-  var size = data.size;
-
-  for (var col = 0; col < size; col++) {
-    for (var row = 0; row < size; row++) {
-      if (data.isReserved(row, col)) continue
-      data.xor(row, col, getMaskAt(pattern, row, col));
-    }
-  }
-};
-
-/**
- * Returns the best mask pattern for data
- *
- * @param  {BitMatrix} data
- * @return {Number} Mask pattern reference number
- */
-exports.getBestMask = function getBestMask (data, setupFormatFunc) {
-  var numPatterns = Object.keys(exports.Patterns).length;
-  var bestPattern = 0;
-  var lowerPenalty = Infinity;
-
-  for (var p = 0; p < numPatterns; p++) {
-    setupFormatFunc(p);
-    exports.applyMask(p, data);
-
-    // Calculate penalty
-    var penalty =
-      exports.getPenaltyN1(data) +
-      exports.getPenaltyN2(data) +
-      exports.getPenaltyN3(data) +
-      exports.getPenaltyN4(data);
-
-    // Undo previously applied mask
-    exports.applyMask(p, data);
-
-    if (penalty < lowerPenalty) {
-      lowerPenalty = penalty;
-      bestPattern = p;
-    }
-  }
-
-  return bestPattern
-};
-
-},{}],13:[function(require,module,exports){
-var VersionCheck = require('./version-check');
-var Regex = require('./regex');
-
-/**
- * Numeric mode encodes data from the decimal digit set (0 - 9)
- * (byte values 30HEX to 39HEX).
- * Normally, 3 data characters are represented by 10 bits.
- *
- * @type {Object}
- */
-exports.NUMERIC = {
-  id: 'Numeric',
-  bit: 1 << 0,
-  ccBits: [10, 12, 14]
-};
-
-/**
- * Alphanumeric mode encodes data from a set of 45 characters,
- * i.e. 10 numeric digits (0 - 9),
- *      26 alphabetic characters (A - Z),
- *   and 9 symbols (SP, $, %, *, +, -, ., /, :).
- * Normally, two input characters are represented by 11 bits.
- *
- * @type {Object}
- */
-exports.ALPHANUMERIC = {
-  id: 'Alphanumeric',
-  bit: 1 << 1,
-  ccBits: [9, 11, 13]
-};
-
-/**
- * In byte mode, data is encoded at 8 bits per character.
- *
- * @type {Object}
- */
-exports.BYTE = {
-  id: 'Byte',
-  bit: 1 << 2,
-  ccBits: [8, 16, 16]
-};
-
-/**
- * The Kanji mode efficiently encodes Kanji characters in accordance with
- * the Shift JIS system based on JIS X 0208.
- * The Shift JIS values are shifted from the JIS X 0208 values.
- * JIS X 0208 gives details of the shift coded representation.
- * Each two-byte character value is compacted to a 13-bit binary codeword.
- *
- * @type {Object}
- */
-exports.KANJI = {
-  id: 'Kanji',
-  bit: 1 << 3,
-  ccBits: [8, 10, 12]
-};
-
-/**
- * Mixed mode will contain a sequences of data in a combination of any of
- * the modes described above
- *
- * @type {Object}
- */
-exports.MIXED = {
-  bit: -1
-};
-
-/**
- * Returns the number of bits needed to store the data length
- * according to QR Code specifications.
- *
- * @param  {Mode}   mode    Data mode
- * @param  {Number} version QR Code version
- * @return {Number}         Number of bits
- */
-exports.getCharCountIndicator = function getCharCountIndicator (mode, version) {
-  if (!mode.ccBits) throw new Error('Invalid mode: ' + mode)
-
-  if (!VersionCheck.isValid(version)) {
-    throw new Error('Invalid version: ' + version)
-  }
-
-  if (version >= 1 && version < 10) return mode.ccBits[0]
-  else if (version < 27) return mode.ccBits[1]
-  return mode.ccBits[2]
-};
-
-/**
- * Returns the most efficient mode to store the specified data
- *
- * @param  {String} dataStr Input data string
- * @return {Mode}           Best mode
- */
-exports.getBestModeForData = function getBestModeForData (dataStr) {
-  if (Regex.testNumeric(dataStr)) return exports.NUMERIC
-  else if (Regex.testAlphanumeric(dataStr)) return exports.ALPHANUMERIC
-  else if (Regex.testKanji(dataStr)) return exports.KANJI
-  else return exports.BYTE
-};
-
-/**
- * Return mode name as string
- *
- * @param {Mode} mode Mode object
- * @returns {String}  Mode name
- */
-exports.toString = function toString (mode) {
-  if (mode && mode.id) return mode.id
-  throw new Error('Invalid mode')
-};
-
-/**
- * Check if input param is a valid mode object
- *
- * @param   {Mode}    mode Mode object
- * @returns {Boolean} True if valid mode, false otherwise
- */
-exports.isValid = function isValid (mode) {
-  return mode && mode.bit && mode.ccBits
-};
-
-/**
- * Get mode object from its name
- *
- * @param   {String} string Mode name
- * @returns {Mode}          Mode object
- */
-function fromString (string) {
-  if (typeof string !== 'string') {
-    throw new Error('Param is not a string')
-  }
-
-  var lcStr = string.toLowerCase();
-
-  switch (lcStr) {
-    case 'numeric':
-      return exports.NUMERIC
-    case 'alphanumeric':
-      return exports.ALPHANUMERIC
-    case 'kanji':
-      return exports.KANJI
-    case 'byte':
-      return exports.BYTE
-    default:
-      throw new Error('Unknown mode: ' + string)
-  }
-}
-
-/**
- * Returns mode from a value.
- * If value is not a valid mode, returns defaultValue
- *
- * @param  {Mode|String} value        Encoding mode
- * @param  {Mode}        defaultValue Fallback value
- * @return {Mode}                     Encoding mode
- */
-exports.from = function from (value, defaultValue) {
-  if (exports.isValid(value)) {
-    return value
-  }
-
-  try {
-    return fromString(value)
-  } catch (e) {
-    return defaultValue
-  }
-};
-
-},{"./regex":18,"./version-check":21}],14:[function(require,module,exports){
-var Mode = require('./mode');
-
-function NumericData (data) {
-  this.mode = Mode.NUMERIC;
-  this.data = data.toString();
-}
-
-NumericData.getBitsLength = function getBitsLength (length) {
-  return 10 * Math.floor(length / 3) + ((length % 3) ? ((length % 3) * 3 + 1) : 0)
-};
-
-NumericData.prototype.getLength = function getLength () {
-  return this.data.length
-};
-
-NumericData.prototype.getBitsLength = function getBitsLength () {
-  return NumericData.getBitsLength(this.data.length)
-};
-
-NumericData.prototype.write = function write (bitBuffer) {
-  var i, group, value;
-
-  // The input data string is divided into groups of three digits,
-  // and each group is converted to its 10-bit binary equivalent.
-  for (i = 0; i + 3 <= this.data.length; i += 3) {
-    group = this.data.substr(i, 3);
-    value = parseInt(group, 10);
-
-    bitBuffer.put(value, 10);
-  }
-
-  // If the number of input digits is not an exact multiple of three,
-  // the final one or two digits are converted to 4 or 7 bits respectively.
-  var remainingNum = this.data.length - i;
-  if (remainingNum > 0) {
-    group = this.data.substr(i);
-    value = parseInt(group, 10);
-
-    bitBuffer.put(value, remainingNum * 3 + 1);
-  }
-};
-
-module.exports = NumericData;
-
-},{"./mode":13}],15:[function(require,module,exports){
-var Buffer = require('../utils/buffer');
-var GF = require('./galois-field');
-
-/**
- * Multiplies two polynomials inside Galois Field
- *
- * @param  {Buffer} p1 Polynomial
- * @param  {Buffer} p2 Polynomial
- * @return {Buffer}    Product of p1 and p2
- */
-exports.mul = function mul (p1, p2) {
-  var coeff = new Buffer(p1.length + p2.length - 1);
-  coeff.fill(0);
-
-  for (var i = 0; i < p1.length; i++) {
-    for (var j = 0; j < p2.length; j++) {
-      coeff[i + j] ^= GF.mul(p1[i], p2[j]);
-    }
-  }
-
-  return coeff
-};
-
-/**
- * Calculate the remainder of polynomials division
- *
- * @param  {Buffer} divident Polynomial
- * @param  {Buffer} divisor  Polynomial
- * @return {Buffer}          Remainder
- */
-exports.mod = function mod (divident, divisor) {
-  var result = new Buffer(divident);
-
-  while ((result.length - divisor.length) >= 0) {
-    var coeff = result[0];
-
-    for (var i = 0; i < divisor.length; i++) {
-      result[i] ^= GF.mul(divisor[i], coeff);
-    }
-
-    // remove all zeros from buffer head
-    var offset = 0;
-    while (offset < result.length && result[offset] === 0) offset++;
-    result = result.slice(offset);
-  }
-
-  return result
-};
-
-/**
- * Generate an irreducible generator polynomial of specified degree
- * (used by Reed-Solomon encoder)
- *
- * @param  {Number} degree Degree of the generator polynomial
- * @return {Buffer}        Buffer containing polynomial coefficients
- */
-exports.generateECPolynomial = function generateECPolynomial (degree) {
-  var poly = new Buffer([1]);
-  for (var i = 0; i < degree; i++) {
-    poly = exports.mul(poly, [1, GF.exp(i)]);
-  }
-
-  return poly
-};
-
-},{"../utils/buffer":27,"./galois-field":10}],16:[function(require,module,exports){
-var Buffer = require('../utils/buffer');
-var Utils = require('./utils');
-var ECLevel = require('./error-correction-level');
-var BitBuffer = require('./bit-buffer');
-var BitMatrix = require('./bit-matrix');
-var AlignmentPattern = require('./alignment-pattern');
-var FinderPattern = require('./finder-pattern');
-var MaskPattern = require('./mask-pattern');
-var ECCode = require('./error-correction-code');
-var ReedSolomonEncoder = require('./reed-solomon-encoder');
-var Version = require('./version');
-var FormatInfo = require('./format-info');
-var Mode = require('./mode');
-var Segments = require('./segments');
-var isArray = require('isarray');
-
-/**
- * QRCode for JavaScript
- *
- * modified by Ryan Day for nodejs support
- * Copyright (c) 2011 Ryan Day
- *
- * Licensed under the MIT license:
- *   http://www.opensource.org/licenses/mit-license.php
- *
-//---------------------------------------------------------------------
-// QRCode for JavaScript
-//
-// Copyright (c) 2009 Kazuhiko Arase
-//
-// URL: http://www.d-project.com/
-//
-// Licensed under the MIT license:
-//   http://www.opensource.org/licenses/mit-license.php
-//
-// The word "QR Code" is registered trademark of
-// DENSO WAVE INCORPORATED
-//   http://www.denso-wave.com/qrcode/faqpatent-e.html
-//
-//---------------------------------------------------------------------
-*/
-
-/**
- * Add finder patterns bits to matrix
- *
- * @param  {BitMatrix} matrix  Modules matrix
- * @param  {Number}    version QR Code version
- */
-function setupFinderPattern (matrix, version) {
-  var size = matrix.size;
-  var pos = FinderPattern.getPositions(version);
-
-  for (var i = 0; i < pos.length; i++) {
-    var row = pos[i][0];
-    var col = pos[i][1];
-
-    for (var r = -1; r <= 7; r++) {
-      if (row + r <= -1 || size <= row + r) continue
-
-      for (var c = -1; c <= 7; c++) {
-        if (col + c <= -1 || size <= col + c) continue
-
-        if ((r >= 0 && r <= 6 && (c === 0 || c === 6)) ||
-          (c >= 0 && c <= 6 && (r === 0 || r === 6)) ||
-          (r >= 2 && r <= 4 && c >= 2 && c <= 4)) {
-          matrix.set(row + r, col + c, true, true);
-        } else {
-          matrix.set(row + r, col + c, false, true);
-        }
-      }
-    }
-  }
-}
-
-/**
- * Add timing pattern bits to matrix
- *
- * Note: this function must be called before {@link setupAlignmentPattern}
- *
- * @param  {BitMatrix} matrix Modules matrix
- */
-function setupTimingPattern (matrix) {
-  var size = matrix.size;
-
-  for (var r = 8; r < size - 8; r++) {
-    var value = r % 2 === 0;
-    matrix.set(r, 6, value, true);
-    matrix.set(6, r, value, true);
-  }
-}
-
-/**
- * Add alignment patterns bits to matrix
- *
- * Note: this function must be called after {@link setupTimingPattern}
- *
- * @param  {BitMatrix} matrix  Modules matrix
- * @param  {Number}    version QR Code version
- */
-function setupAlignmentPattern (matrix, version) {
-  var pos = AlignmentPattern.getPositions(version);
-
-  for (var i = 0; i < pos.length; i++) {
-    var row = pos[i][0];
-    var col = pos[i][1];
-
-    for (var r = -2; r <= 2; r++) {
-      for (var c = -2; c <= 2; c++) {
-        if (r === -2 || r === 2 || c === -2 || c === 2 ||
-          (r === 0 && c === 0)) {
-          matrix.set(row + r, col + c, true, true);
-        } else {
-          matrix.set(row + r, col + c, false, true);
-        }
-      }
-    }
-  }
-}
-
-/**
- * Add version info bits to matrix
- *
- * @param  {BitMatrix} matrix  Modules matrix
- * @param  {Number}    version QR Code version
- */
-function setupVersionInfo (matrix, version) {
-  var size = matrix.size;
-  var bits = Version.getEncodedBits(version);
-  var row, col, mod;
-
-  for (var i = 0; i < 18; i++) {
-    row = Math.floor(i / 3);
-    col = i % 3 + size - 8 - 3;
-    mod = ((bits >> i) & 1) === 1;
-
-    matrix.set(row, col, mod, true);
-    matrix.set(col, row, mod, true);
-  }
-}
-
-/**
- * Add format info bits to matrix
- *
- * @param  {BitMatrix} matrix               Modules matrix
- * @param  {ErrorCorrectionLevel}    errorCorrectionLevel Error correction level
- * @param  {Number}    maskPattern          Mask pattern reference value
- */
-function setupFormatInfo (matrix, errorCorrectionLevel, maskPattern) {
-  var size = matrix.size;
-  var bits = FormatInfo.getEncodedBits(errorCorrectionLevel, maskPattern);
-  var i, mod;
-
-  for (i = 0; i < 15; i++) {
-    mod = ((bits >> i) & 1) === 1;
-
-    // vertical
-    if (i < 6) {
-      matrix.set(i, 8, mod, true);
-    } else if (i < 8) {
-      matrix.set(i + 1, 8, mod, true);
-    } else {
-      matrix.set(size - 15 + i, 8, mod, true);
-    }
-
-    // horizontal
-    if (i < 8) {
-      matrix.set(8, size - i - 1, mod, true);
-    } else if (i < 9) {
-      matrix.set(8, 15 - i - 1 + 1, mod, true);
-    } else {
-      matrix.set(8, 15 - i - 1, mod, true);
-    }
-  }
-
-  // fixed module
-  matrix.set(size - 8, 8, 1, true);
-}
-
-/**
- * Add encoded data bits to matrix
- *
- * @param  {BitMatrix} matrix Modules matrix
- * @param  {Buffer}    data   Data codewords
- */
-function setupData (matrix, data) {
-  var size = matrix.size;
-  var inc = -1;
-  var row = size - 1;
-  var bitIndex = 7;
-  var byteIndex = 0;
-
-  for (var col = size - 1; col > 0; col -= 2) {
-    if (col === 6) col--;
-
-    while (true) {
-      for (var c = 0; c < 2; c++) {
-        if (!matrix.isReserved(row, col - c)) {
-          var dark = false;
-
-          if (byteIndex < data.length) {
-            dark = (((data[byteIndex] >>> bitIndex) & 1) === 1);
-          }
-
-          matrix.set(row, col - c, dark);
-          bitIndex--;
-
-          if (bitIndex === -1) {
-            byteIndex++;
-            bitIndex = 7;
-          }
-        }
-      }
-
-      row += inc;
-
-      if (row < 0 || size <= row) {
-        row -= inc;
-        inc = -inc;
-        break
-      }
-    }
-  }
-}
-
-/**
- * Create encoded codewords from data input
- *
- * @param  {Number}   version              QR Code version
- * @param  {ErrorCorrectionLevel}   errorCorrectionLevel Error correction level
- * @param  {ByteData} data                 Data input
- * @return {Buffer}                        Buffer containing encoded codewords
- */
-function createData (version, errorCorrectionLevel, segments) {
-  // Prepare data buffer
-  var buffer = new BitBuffer();
-
-  segments.forEach(function (data) {
-    // prefix data with mode indicator (4 bits)
-    buffer.put(data.mode.bit, 4);
-
-    // Prefix data with character count indicator.
-    // The character count indicator is a string of bits that represents the
-    // number of characters that are being encoded.
-    // The character count indicator must be placed after the mode indicator
-    // and must be a certain number of bits long, depending on the QR version
-    // and data mode
-    // @see {@link Mode.getCharCountIndicator}.
-    buffer.put(data.getLength(), Mode.getCharCountIndicator(data.mode, version));
-
-    // add binary data sequence to buffer
-    data.write(buffer);
-  });
-
-  // Calculate required number of bits
-  var totalCodewords = Utils.getSymbolTotalCodewords(version);
-  var ecTotalCodewords = ECCode.getTotalCodewordsCount(version, errorCorrectionLevel);
-  var dataTotalCodewordsBits = (totalCodewords - ecTotalCodewords) * 8;
-
-  // Add a terminator.
-  // If the bit string is shorter than the total number of required bits,
-  // a terminator of up to four 0s must be added to the right side of the string.
-  // If the bit string is more than four bits shorter than the required number of bits,
-  // add four 0s to the end.
-  if (buffer.getLengthInBits() + 4 <= dataTotalCodewordsBits) {
-    buffer.put(0, 4);
-  }
-
-  // If the bit string is fewer than four bits shorter, add only the number of 0s that
-  // are needed to reach the required number of bits.
-
-  // After adding the terminator, if the number of bits in the string is not a multiple of 8,
-  // pad the string on the right with 0s to make the string's length a multiple of 8.
-  while (buffer.getLengthInBits() % 8 !== 0) {
-    buffer.putBit(0);
-  }
-
-  // Add pad bytes if the string is still shorter than the total number of required bits.
-  // Extend the buffer to fill the data capacity of the symbol corresponding to
-  // the Version and Error Correction Level by adding the Pad Codewords 11101100 (0xEC)
-  // and 00010001 (0x11) alternately.
-  var remainingByte = (dataTotalCodewordsBits - buffer.getLengthInBits()) / 8;
-  for (var i = 0; i < remainingByte; i++) {
-    buffer.put(i % 2 ? 0x11 : 0xEC, 8);
-  }
-
-  return createCodewords(buffer, version, errorCorrectionLevel)
-}
-
-/**
- * Encode input data with Reed-Solomon and return codewords with
- * relative error correction bits
- *
- * @param  {BitBuffer} bitBuffer            Data to encode
- * @param  {Number}    version              QR Code version
- * @param  {ErrorCorrectionLevel} errorCorrectionLevel Error correction level
- * @return {Buffer}                         Buffer containing encoded codewords
- */
-function createCodewords (bitBuffer, version, errorCorrectionLevel) {
-  // Total codewords for this QR code version (Data + Error correction)
-  var totalCodewords = Utils.getSymbolTotalCodewords(version);
-
-  // Total number of error correction codewords
-  var ecTotalCodewords = ECCode.getTotalCodewordsCount(version, errorCorrectionLevel);
-
-  // Total number of data codewords
-  var dataTotalCodewords = totalCodewords - ecTotalCodewords;
-
-  // Total number of blocks
-  var ecTotalBlocks = ECCode.getBlocksCount(version, errorCorrectionLevel);
-
-  // Calculate how many blocks each group should contain
-  var blocksInGroup2 = totalCodewords % ecTotalBlocks;
-  var blocksInGroup1 = ecTotalBlocks - blocksInGroup2;
-
-  var totalCodewordsInGroup1 = Math.floor(totalCodewords / ecTotalBlocks);
-
-  var dataCodewordsInGroup1 = Math.floor(dataTotalCodewords / ecTotalBlocks);
-  var dataCodewordsInGroup2 = dataCodewordsInGroup1 + 1;
-
-  // Number of EC codewords is the same for both groups
-  var ecCount = totalCodewordsInGroup1 - dataCodewordsInGroup1;
-
-  // Initialize a Reed-Solomon encoder with a generator polynomial of degree ecCount
-  var rs = new ReedSolomonEncoder(ecCount);
-
-  var offset = 0;
-  var dcData = new Array(ecTotalBlocks);
-  var ecData = new Array(ecTotalBlocks);
-  var maxDataSize = 0;
-  var buffer = new Buffer(bitBuffer.buffer);
-
-  // Divide the buffer into the required number of blocks
-  for (var b = 0; b < ecTotalBlocks; b++) {
-    var dataSize = b < blocksInGroup1 ? dataCodewordsInGroup1 : dataCodewordsInGroup2;
-
-    // extract a block of data from buffer
-    dcData[b] = buffer.slice(offset, offset + dataSize);
-
-    // Calculate EC codewords for this data block
-    ecData[b] = rs.encode(dcData[b]);
-
-    offset += dataSize;
-    maxDataSize = Math.max(maxDataSize, dataSize);
-  }
-
-  // Create final data
-  // Interleave the data and error correction codewords from each block
-  var data = new Buffer(totalCodewords);
-  var index = 0;
-  var i, r;
-
-  // Add data codewords
-  for (i = 0; i < maxDataSize; i++) {
-    for (r = 0; r < ecTotalBlocks; r++) {
-      if (i < dcData[r].length) {
-        data[index++] = dcData[r][i];
-      }
-    }
-  }
-
-  // Apped EC codewords
-  for (i = 0; i < ecCount; i++) {
-    for (r = 0; r < ecTotalBlocks; r++) {
-      data[index++] = ecData[r][i];
-    }
-  }
-
-  return data
-}
-
-/**
- * Build QR Code symbol
- *
- * @param  {String} data                 Input string
- * @param  {Number} version              QR Code version
- * @param  {ErrorCorretionLevel} errorCorrectionLevel Error level
- * @param  {MaskPattern} maskPattern     Mask pattern
- * @return {Object}                      Object containing symbol data
- */
-function createSymbol (data, version, errorCorrectionLevel, maskPattern) {
-  var segments;
-
-  if (isArray(data)) {
-    segments = Segments.fromArray(data);
-  } else if (typeof data === 'string') {
-    var estimatedVersion = version;
-
-    if (!estimatedVersion) {
-      var rawSegments = Segments.rawSplit(data);
-
-      // Estimate best version that can contain raw splitted segments
-      estimatedVersion = Version.getBestVersionForData(rawSegments,
-        errorCorrectionLevel);
-    }
-
-    // Build optimized segments
-    // If estimated version is undefined, try with the highest version
-    segments = Segments.fromString(data, estimatedVersion || 40);
-  } else {
-    throw new Error('Invalid data')
-  }
-
-  // Get the min version that can contain data
-  var bestVersion = Version.getBestVersionForData(segments,
-      errorCorrectionLevel);
-
-  // If no version is found, data cannot be stored
-  if (!bestVersion) {
-    throw new Error('The amount of data is too big to be stored in a QR Code')
-  }
-
-  // If not specified, use min version as default
-  if (!version) {
-    version = bestVersion;
-
-  // Check if the specified version can contain the data
-  } else if (version < bestVersion) {
-    throw new Error('\n' +
-      'The chosen QR Code version cannot contain this amount of data.\n' +
-      'Minimum version required to store current data is: ' + bestVersion + '.\n'
-    )
-  }
-
-  var dataBits = createData(version, errorCorrectionLevel, segments);
-
-  // Allocate matrix buffer
-  var moduleCount = Utils.getSymbolSize(version);
-  var modules = new BitMatrix(moduleCount);
-
-  // Add function modules
-  setupFinderPattern(modules, version);
-  setupTimingPattern(modules);
-  setupAlignmentPattern(modules, version);
-
-  // Add temporary dummy bits for format info just to set them as reserved.
-  // This is needed to prevent these bits from being masked by {@link MaskPattern.applyMask}
-  // since the masking operation must be performed only on the encoding region.
-  // These blocks will be replaced with correct values later in code.
-  setupFormatInfo(modules, errorCorrectionLevel, 0);
-
-  if (version >= 7) {
-    setupVersionInfo(modules, version);
-  }
-
-  // Add data codewords
-  setupData(modules, dataBits);
-
-  if (isNaN(maskPattern)) {
-    // Find best mask pattern
-    maskPattern = MaskPattern.getBestMask(modules,
-      setupFormatInfo.bind(null, modules, errorCorrectionLevel));
-  }
-
-  // Apply mask pattern
-  MaskPattern.applyMask(maskPattern, modules);
-
-  // Replace format info bits with correct values
-  setupFormatInfo(modules, errorCorrectionLevel, maskPattern);
-
-  return {
-    modules: modules,
-    version: version,
-    errorCorrectionLevel: errorCorrectionLevel,
-    maskPattern: maskPattern,
-    segments: segments
-  }
-}
-
-/**
- * QR Code
- *
- * @param {String | Array} data                 Input data
- * @param {Object} options                      Optional configurations
- * @param {Number} options.version              QR Code version
- * @param {String} options.errorCorrectionLevel Error correction level
- * @param {Function} options.toSJISFunc         Helper func to convert utf8 to sjis
- */
-exports.create = function create (data, options) {
-  if (typeof data === 'undefined' || data === '') {
-    throw new Error('No input text')
-  }
-
-  var errorCorrectionLevel = ECLevel.M;
-  var version;
-  var mask;
-
-  if (typeof options !== 'undefined') {
-    // Use higher error correction level as default
-    errorCorrectionLevel = ECLevel.from(options.errorCorrectionLevel, ECLevel.M);
-    version = Version.from(options.version);
-    mask = MaskPattern.from(options.maskPattern);
-
-    if (options.toSJISFunc) {
-      Utils.setToSJISFunction(options.toSJISFunc);
-    }
-  }
-
-  return createSymbol(data, version, errorCorrectionLevel, mask)
-};
-
-},{"../utils/buffer":27,"./alignment-pattern":1,"./bit-buffer":3,"./bit-matrix":4,"./error-correction-code":6,"./error-correction-level":7,"./finder-pattern":8,"./format-info":9,"./mask-pattern":12,"./mode":13,"./reed-solomon-encoder":17,"./segments":19,"./utils":20,"./version":22,"isarray":30}],17:[function(require,module,exports){
-var Buffer = require('../utils/buffer');
-var Polynomial = require('./polynomial');
-
-function ReedSolomonEncoder (degree) {
-  this.genPoly = undefined;
-  this.degree = degree;
-
-  if (this.degree) this.initialize(this.degree);
-}
-
-/**
- * Initialize the encoder.
- * The input param should correspond to the number of error correction codewords.
- *
- * @param  {Number} degree
- */
-ReedSolomonEncoder.prototype.initialize = function initialize (degree) {
-  // create an irreducible generator polynomial
-  this.degree = degree;
-  this.genPoly = Polynomial.generateECPolynomial(this.degree);
-};
-
-/**
- * Encodes a chunk of data
- *
- * @param  {Buffer} data Buffer containing input data
- * @return {Buffer}      Buffer containing encoded data
- */
-ReedSolomonEncoder.prototype.encode = function encode (data) {
-  if (!this.genPoly) {
-    throw new Error('Encoder not initialized')
-  }
-
-  // Calculate EC for this data block
-  // extends data size to data+genPoly size
-  var pad = new Buffer(this.degree);
-  pad.fill(0);
-  var paddedData = Buffer.concat([data, pad], data.length + this.degree);
-
-  // The error correction codewords are the remainder after dividing the data codewords
-  // by a generator polynomial
-  var remainder = Polynomial.mod(paddedData, this.genPoly);
-
-  // return EC data blocks (last n byte, where n is the degree of genPoly)
-  // If coefficients number in remainder are less than genPoly degree,
-  // pad with 0s to the left to reach the needed number of coefficients
-  var start = this.degree - remainder.length;
-  if (start > 0) {
-    var buff = new Buffer(this.degree);
-    buff.fill(0);
-    remainder.copy(buff, start);
-
-    return buff
-  }
-
-  return remainder
-};
-
-module.exports = ReedSolomonEncoder;
-
-},{"../utils/buffer":27,"./polynomial":15}],18:[function(require,module,exports){
-var numeric = '[0-9]+';
-var alphanumeric = '[A-Z $%*+\\-./:]+';
-var kanji = '(?:[u3000-u303F]|[u3040-u309F]|[u30A0-u30FF]|' +
-  '[uFF00-uFFEF]|[u4E00-u9FAF]|[u2605-u2606]|[u2190-u2195]|u203B|' +
-  '[u2010u2015u2018u2019u2025u2026u201Cu201Du2225u2260]|' +
-  '[u0391-u0451]|[u00A7u00A8u00B1u00B4u00D7u00F7])+';
-kanji = kanji.replace(/u/g, '\\u');
-
-var byte = '(?:(?![A-Z0-9 $%*+\\-./:]|' + kanji + ')(?:.|[\r\n]))+';
-
-exports.KANJI = new RegExp(kanji, 'g');
-exports.BYTE_KANJI = new RegExp('[^A-Z0-9 $%*+\\-./:]+', 'g');
-exports.BYTE = new RegExp(byte, 'g');
-exports.NUMERIC = new RegExp(numeric, 'g');
-exports.ALPHANUMERIC = new RegExp(alphanumeric, 'g');
-
-var TEST_KANJI = new RegExp('^' + kanji + '$');
-var TEST_NUMERIC = new RegExp('^' + numeric + '$');
-var TEST_ALPHANUMERIC = new RegExp('^[A-Z0-9 $%*+\\-./:]+$');
-
-exports.testKanji = function testKanji (str) {
-  return TEST_KANJI.test(str)
-};
-
-exports.testNumeric = function testNumeric (str) {
-  return TEST_NUMERIC.test(str)
-};
-
-exports.testAlphanumeric = function testAlphanumeric (str) {
-  return TEST_ALPHANUMERIC.test(str)
-};
-
-},{}],19:[function(require,module,exports){
-var Mode = require('./mode');
-var NumericData = require('./numeric-data');
-var AlphanumericData = require('./alphanumeric-data');
-var ByteData = require('./byte-data');
-var KanjiData = require('./kanji-data');
-var Regex = require('./regex');
-var Utils = require('./utils');
-var dijkstra = require('dijkstrajs');
-
-/**
- * Returns UTF8 byte length
- *
- * @param  {String} str Input string
- * @return {Number}     Number of byte
- */
-function getStringByteLength (str) {
-  return unescape(encodeURIComponent(str)).length
-}
-
-/**
- * Get a list of segments of the specified mode
- * from a string
- *
- * @param  {Mode}   mode Segment mode
- * @param  {String} str  String to process
- * @return {Array}       Array of object with segments data
- */
-function getSegments (regex, mode, str) {
-  var segments = [];
-  var result;
-
-  while ((result = regex.exec(str)) !== null) {
-    segments.push({
-      data: result[0],
-      index: result.index,
-      mode: mode,
-      length: result[0].length
-    });
-  }
-
-  return segments
-}
-
-/**
- * Extracts a series of segments with the appropriate
- * modes from a string
- *
- * @param  {String} dataStr Input string
- * @return {Array}          Array of object with segments data
- */
-function getSegmentsFromString (dataStr) {
-  var numSegs = getSegments(Regex.NUMERIC, Mode.NUMERIC, dataStr);
-  var alphaNumSegs = getSegments(Regex.ALPHANUMERIC, Mode.ALPHANUMERIC, dataStr);
-  var byteSegs;
-  var kanjiSegs;
-
-  if (Utils.isKanjiModeEnabled()) {
-    byteSegs = getSegments(Regex.BYTE, Mode.BYTE, dataStr);
-    kanjiSegs = getSegments(Regex.KANJI, Mode.KANJI, dataStr);
-  } else {
-    byteSegs = getSegments(Regex.BYTE_KANJI, Mode.BYTE, dataStr);
-    kanjiSegs = [];
-  }
-
-  var segs = numSegs.concat(alphaNumSegs, byteSegs, kanjiSegs);
-
-  return segs
-    .sort(function (s1, s2) {
-      return s1.index - s2.index
-    })
-    .map(function (obj) {
-      return {
-        data: obj.data,
-        mode: obj.mode,
-        length: obj.length
-      }
-    })
-}
-
-/**
- * Returns how many bits are needed to encode a string of
- * specified length with the specified mode
- *
- * @param  {Number} length String length
- * @param  {Mode} mode     Segment mode
- * @return {Number}        Bit length
- */
-function getSegmentBitsLength (length, mode) {
-  switch (mode) {
-    case Mode.NUMERIC:
-      return NumericData.getBitsLength(length)
-    case Mode.ALPHANUMERIC:
-      return AlphanumericData.getBitsLength(length)
-    case Mode.KANJI:
-      return KanjiData.getBitsLength(length)
-    case Mode.BYTE:
-      return ByteData.getBitsLength(length)
-  }
-}
-
-/**
- * Merges adjacent segments which have the same mode
- *
- * @param  {Array} segs Array of object with segments data
- * @return {Array}      Array of object with segments data
- */
-function mergeSegments (segs) {
-  return segs.reduce(function (acc, curr) {
-    var prevSeg = acc.length - 1 >= 0 ? acc[acc.length - 1] : null;
-    if (prevSeg && prevSeg.mode === curr.mode) {
-      acc[acc.length - 1].data += curr.data;
-      return acc
-    }
-
-    acc.push(curr);
-    return acc
-  }, [])
-}
-
-/**
- * Generates a list of all possible nodes combination which
- * will be used to build a segments graph.
- *
- * Nodes are divided by groups. Each group will contain a list of all the modes
- * in which is possible to encode the given text.
- *
- * For example the text '12345' can be encoded as Numeric, Alphanumeric or Byte.
- * The group for '12345' will contain then 3 objects, one for each
- * possible encoding mode.
- *
- * Each node represents a possible segment.
- *
- * @param  {Array} segs Array of object with segments data
- * @return {Array}      Array of object with segments data
- */
-function buildNodes (segs) {
-  var nodes = [];
-  for (var i = 0; i < segs.length; i++) {
-    var seg = segs[i];
-
-    switch (seg.mode) {
-      case Mode.NUMERIC:
-        nodes.push([seg,
-          { data: seg.data, mode: Mode.ALPHANUMERIC, length: seg.length },
-          { data: seg.data, mode: Mode.BYTE, length: seg.length }
-        ]);
-        break
-      case Mode.ALPHANUMERIC:
-        nodes.push([seg,
-          { data: seg.data, mode: Mode.BYTE, length: seg.length }
-        ]);
-        break
-      case Mode.KANJI:
-        nodes.push([seg,
-          { data: seg.data, mode: Mode.BYTE, length: getStringByteLength(seg.data) }
-        ]);
-        break
-      case Mode.BYTE:
-        nodes.push([
-          { data: seg.data, mode: Mode.BYTE, length: getStringByteLength(seg.data) }
-        ]);
-    }
-  }
-
-  return nodes
-}
-
-/**
- * Builds a graph from a list of nodes.
- * All segments in each node group will be connected with all the segments of
- * the next group and so on.
- *
- * At each connection will be assigned a weight depending on the
- * segment's byte length.
- *
- * @param  {Array} nodes    Array of object with segments data
- * @param  {Number} version QR Code version
- * @return {Object}         Graph of all possible segments
- */
-function buildGraph (nodes, version) {
-  var table = {};
-  var graph = {'start': {}};
-  var prevNodeIds = ['start'];
-
-  for (var i = 0; i < nodes.length; i++) {
-    var nodeGroup = nodes[i];
-    var currentNodeIds = [];
-
-    for (var j = 0; j < nodeGroup.length; j++) {
-      var node = nodeGroup[j];
-      var key = '' + i + j;
-
-      currentNodeIds.push(key);
-      table[key] = { node: node, lastCount: 0 };
-      graph[key] = {};
-
-      for (var n = 0; n < prevNodeIds.length; n++) {
-        var prevNodeId = prevNodeIds[n];
-
-        if (table[prevNodeId] && table[prevNodeId].node.mode === node.mode) {
-          graph[prevNodeId][key] =
-            getSegmentBitsLength(table[prevNodeId].lastCount + node.length, node.mode) -
-            getSegmentBitsLength(table[prevNodeId].lastCount, node.mode);
-
-          table[prevNodeId].lastCount += node.length;
-        } else {
-          if (table[prevNodeId]) table[prevNodeId].lastCount = node.length;
-
-          graph[prevNodeId][key] = getSegmentBitsLength(node.length, node.mode) +
-            4 + Mode.getCharCountIndicator(node.mode, version); // switch cost
-        }
-      }
-    }
-
-    prevNodeIds = currentNodeIds;
-  }
-
-  for (n = 0; n < prevNodeIds.length; n++) {
-    graph[prevNodeIds[n]]['end'] = 0;
-  }
-
-  return { map: graph, table: table }
-}
-
-/**
- * Builds a segment from a specified data and mode.
- * If a mode is not specified, the more suitable will be used.
- *
- * @param  {String} data             Input data
- * @param  {Mode | String} modesHint Data mode
- * @return {Segment}                 Segment
- */
-function buildSingleSegment (data, modesHint) {
-  var mode;
-  var bestMode = Mode.getBestModeForData(data);
-
-  mode = Mode.from(modesHint, bestMode);
-
-  // Make sure data can be encoded
-  if (mode !== Mode.BYTE && mode.bit < bestMode.bit) {
-    throw new Error('"' + data + '"' +
-      ' cannot be encoded with mode ' + Mode.toString(mode) +
-      '.\n Suggested mode is: ' + Mode.toString(bestMode))
-  }
-
-  // Use Mode.BYTE if Kanji support is disabled
-  if (mode === Mode.KANJI && !Utils.isKanjiModeEnabled()) {
-    mode = Mode.BYTE;
-  }
-
-  switch (mode) {
-    case Mode.NUMERIC:
-      return new NumericData(data)
-
-    case Mode.ALPHANUMERIC:
-      return new AlphanumericData(data)
-
-    case Mode.KANJI:
-      return new KanjiData(data)
-
-    case Mode.BYTE:
-      return new ByteData(data)
-  }
-}
-
-/**
- * Builds a list of segments from an array.
- * Array can contain Strings or Objects with segment's info.
- *
- * For each item which is a string, will be generated a segment with the given
- * string and the more appropriate encoding mode.
- *
- * For each item which is an object, will be generated a segment with the given
- * data and mode.
- * Objects must contain at least the property "data".
- * If property "mode" is not present, the more suitable mode will be used.
- *
- * @param  {Array} array Array of objects with segments data
- * @return {Array}       Array of Segments
- */
-exports.fromArray = function fromArray (array) {
-  return array.reduce(function (acc, seg) {
-    if (typeof seg === 'string') {
-      acc.push(buildSingleSegment(seg, null));
-    } else if (seg.data) {
-      acc.push(buildSingleSegment(seg.data, seg.mode));
-    }
-
-    return acc
-  }, [])
-};
-
-/**
- * Builds an optimized sequence of segments from a string,
- * which will produce the shortest possible bitstream.
- *
- * @param  {String} data    Input string
- * @param  {Number} version QR Code version
- * @return {Array}          Array of segments
- */
-exports.fromString = function fromString (data, version) {
-  var segs = getSegmentsFromString(data, Utils.isKanjiModeEnabled());
-
-  var nodes = buildNodes(segs);
-  var graph = buildGraph(nodes, version);
-  var path = dijkstra.find_path(graph.map, 'start', 'end');
-
-  var optimizedSegs = [];
-  for (var i = 1; i < path.length - 1; i++) {
-    optimizedSegs.push(graph.table[path[i]].node);
-  }
-
-  return exports.fromArray(mergeSegments(optimizedSegs))
-};
-
-/**
- * Splits a string in various segments with the modes which
- * best represent their content.
- * The produced segments are far from being optimized.
- * The output of this function is only used to estimate a QR Code version
- * which may contain the data.
- *
- * @param  {string} data Input string
- * @return {Array}       Array of segments
- */
-exports.rawSplit = function rawSplit (data) {
-  return exports.fromArray(
-    getSegmentsFromString(data, Utils.isKanjiModeEnabled())
-  )
-};
-
-},{"./alphanumeric-data":2,"./byte-data":5,"./kanji-data":11,"./mode":13,"./numeric-data":14,"./regex":18,"./utils":20,"dijkstrajs":29}],20:[function(require,module,exports){
-var toSJISFunction;
-var CODEWORDS_COUNT = [
-  0, // Not used
-  26, 44, 70, 100, 134, 172, 196, 242, 292, 346,
-  404, 466, 532, 581, 655, 733, 815, 901, 991, 1085,
-  1156, 1258, 1364, 1474, 1588, 1706, 1828, 1921, 2051, 2185,
-  2323, 2465, 2611, 2761, 2876, 3034, 3196, 3362, 3532, 3706
-];
-
-/**
- * Returns the QR Code size for the specified version
- *
- * @param  {Number} version QR Code version
- * @return {Number}         size of QR code
- */
-exports.getSymbolSize = function getSymbolSize (version) {
-  if (!version) throw new Error('"version" cannot be null or undefined')
-  if (version < 1 || version > 40) throw new Error('"version" should be in range from 1 to 40')
-  return version * 4 + 17
-};
-
-/**
- * Returns the total number of codewords used to store data and EC information.
- *
- * @param  {Number} version QR Code version
- * @return {Number}         Data length in bits
- */
-exports.getSymbolTotalCodewords = function getSymbolTotalCodewords (version) {
-  return CODEWORDS_COUNT[version]
-};
-
-/**
- * Encode data with Bose-Chaudhuri-Hocquenghem
- *
- * @param  {Number} data Value to encode
- * @return {Number}      Encoded value
- */
-exports.getBCHDigit = function (data) {
-  var digit = 0;
-
-  while (data !== 0) {
-    digit++;
-    data >>>= 1;
-  }
-
-  return digit
-};
-
-exports.setToSJISFunction = function setToSJISFunction (f) {
-  if (typeof f !== 'function') {
-    throw new Error('"toSJISFunc" is not a valid function.')
-  }
-
-  toSJISFunction = f;
-};
-
-exports.isKanjiModeEnabled = function () {
-  return typeof toSJISFunction !== 'undefined'
-};
-
-exports.toSJIS = function toSJIS (kanji) {
-  return toSJISFunction(kanji)
-};
-
-},{}],21:[function(require,module,exports){
-/**
- * Check if QR Code version is valid
- *
- * @param  {Number}  version QR Code version
- * @return {Boolean}         true if valid version, false otherwise
- */
-exports.isValid = function isValid (version) {
-  return !isNaN(version) && version >= 1 && version <= 40
-};
-
-},{}],22:[function(require,module,exports){
-var Utils = require('./utils');
-var ECCode = require('./error-correction-code');
-var ECLevel = require('./error-correction-level');
-var Mode = require('./mode');
-var VersionCheck = require('./version-check');
-var isArray = require('isarray');
-
-// Generator polynomial used to encode version information
-var G18 = (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0);
-var G18_BCH = Utils.getBCHDigit(G18);
-
-function getBestVersionForDataLength (mode, length, errorCorrectionLevel) {
-  for (var currentVersion = 1; currentVersion <= 40; currentVersion++) {
-    if (length <= exports.getCapacity(currentVersion, errorCorrectionLevel, mode)) {
-      return currentVersion
-    }
-  }
-
-  return undefined
-}
-
-function getReservedBitsCount (mode, version) {
-  // Character count indicator + mode indicator bits
-  return Mode.getCharCountIndicator(mode, version) + 4
-}
-
-function getTotalBitsFromDataArray (segments, version) {
-  var totalBits = 0;
-
-  segments.forEach(function (data) {
-    var reservedBits = getReservedBitsCount(data.mode, version);
-    totalBits += reservedBits + data.getBitsLength();
-  });
-
-  return totalBits
-}
-
-function getBestVersionForMixedData (segments, errorCorrectionLevel) {
-  for (var currentVersion = 1; currentVersion <= 40; currentVersion++) {
-    var length = getTotalBitsFromDataArray(segments, currentVersion);
-    if (length <= exports.getCapacity(currentVersion, errorCorrectionLevel, Mode.MIXED)) {
-      return currentVersion
-    }
-  }
-
-  return undefined
-}
-
-/**
- * Returns version number from a value.
- * If value is not a valid version, returns defaultValue
- *
- * @param  {Number|String} value        QR Code version
- * @param  {Number}        defaultValue Fallback value
- * @return {Number}                     QR Code version number
- */
-exports.from = function from (value, defaultValue) {
-  if (VersionCheck.isValid(value)) {
-    return parseInt(value, 10)
-  }
-
-  return defaultValue
-};
-
-/**
- * Returns how much data can be stored with the specified QR code version
- * and error correction level
- *
- * @param  {Number} version              QR Code version (1-40)
- * @param  {Number} errorCorrectionLevel Error correction level
- * @param  {Mode}   mode                 Data mode
- * @return {Number}                      Quantity of storable data
- */
-exports.getCapacity = function getCapacity (version, errorCorrectionLevel, mode) {
-  if (!VersionCheck.isValid(version)) {
-    throw new Error('Invalid QR Code version')
-  }
-
-  // Use Byte mode as default
-  if (typeof mode === 'undefined') mode = Mode.BYTE;
-
-  // Total codewords for this QR code version (Data + Error correction)
-  var totalCodewords = Utils.getSymbolTotalCodewords(version);
-
-  // Total number of error correction codewords
-  var ecTotalCodewords = ECCode.getTotalCodewordsCount(version, errorCorrectionLevel);
-
-  // Total number of data codewords
-  var dataTotalCodewordsBits = (totalCodewords - ecTotalCodewords) * 8;
-
-  if (mode === Mode.MIXED) return dataTotalCodewordsBits
-
-  var usableBits = dataTotalCodewordsBits - getReservedBitsCount(mode, version);
-
-  // Return max number of storable codewords
-  switch (mode) {
-    case Mode.NUMERIC:
-      return Math.floor((usableBits / 10) * 3)
-
-    case Mode.ALPHANUMERIC:
-      return Math.floor((usableBits / 11) * 2)
-
-    case Mode.KANJI:
-      return Math.floor(usableBits / 13)
-
-    case Mode.BYTE:
-    default:
-      return Math.floor(usableBits / 8)
-  }
-};
-
-/**
- * Returns the minimum version needed to contain the amount of data
- *
- * @param  {Segment} data                    Segment of data
- * @param  {Number} [errorCorrectionLevel=H] Error correction level
- * @param  {Mode} mode                       Data mode
- * @return {Number}                          QR Code version
- */
-exports.getBestVersionForData = function getBestVersionForData (data, errorCorrectionLevel) {
-  var seg;
-
-  var ecl = ECLevel.from(errorCorrectionLevel, ECLevel.M);
-
-  if (isArray(data)) {
-    if (data.length > 1) {
-      return getBestVersionForMixedData(data, ecl)
-    }
-
-    if (data.length === 0) {
-      return 1
-    }
-
-    seg = data[0];
-  } else {
-    seg = data;
-  }
-
-  return getBestVersionForDataLength(seg.mode, seg.getLength(), ecl)
-};
-
-/**
- * Returns version information with relative error correction bits
- *
- * The version information is included in QR Code symbols of version 7 or larger.
- * It consists of an 18-bit sequence containing 6 data bits,
- * with 12 error correction bits calculated using the (18, 6) Golay code.
- *
- * @param  {Number} version QR Code version
- * @return {Number}         Encoded version info bits
- */
-exports.getEncodedBits = function getEncodedBits (version) {
-  if (!VersionCheck.isValid(version) || version < 7) {
-    throw new Error('Invalid QR Code version')
-  }
-
-  var d = version << 12;
-
-  while (Utils.getBCHDigit(d) - G18_BCH >= 0) {
-    d ^= (G18 << (Utils.getBCHDigit(d) - G18_BCH));
-  }
-
-  return (version << 12) | d
-};
-
-},{"./error-correction-code":6,"./error-correction-level":7,"./mode":13,"./utils":20,"./version-check":21,"isarray":30}],23:[function(require,module,exports){
-var canPromise = require('can-promise');
-var QRCode = require('./core/qrcode');
-var CanvasRenderer = require('./renderer/canvas');
-var SvgRenderer = require('./renderer/svg-tag.js');
-
-function renderCanvas (renderFunc, canvas, text, opts, cb) {
-  var args = [].slice.call(arguments, 1);
-  var argsNum = args.length;
-  var isLastArgCb = typeof args[argsNum - 1] === 'function';
-
-  if (!isLastArgCb && !canPromise()) {
-    throw new Error('Callback required as last argument')
-  }
-
-  if (isLastArgCb) {
-    if (argsNum < 2) {
-      throw new Error('Too few arguments provided')
-    }
-
-    if (argsNum === 2) {
-      cb = text;
-      text = canvas;
-      canvas = opts = undefined;
-    } else if (argsNum === 3) {
-      if (canvas.getContext && typeof cb === 'undefined') {
-        cb = opts;
-        opts = undefined;
-      } else {
-        cb = opts;
-        opts = text;
-        text = canvas;
-        canvas = undefined;
-      }
-    }
-  } else {
-    if (argsNum < 1) {
-      throw new Error('Too few arguments provided')
-    }
-
-    if (argsNum === 1) {
-      text = canvas;
-      canvas = opts = undefined;
-    } else if (argsNum === 2 && !canvas.getContext) {
-      opts = text;
-      text = canvas;
-      canvas = undefined;
-    }
-
-    return new Promise(function (resolve, reject) {
-      try {
-        var data = QRCode.create(text, opts);
-        resolve(renderFunc(data, canvas, opts));
-      } catch (e) {
-        reject(e);
-      }
-    })
-  }
-
-  try {
-    var data = QRCode.create(text, opts);
-    cb(null, renderFunc(data, canvas, opts));
-  } catch (e) {
-    cb(e);
-  }
-}
-
-exports.create = QRCode.create;
-exports.toCanvas = renderCanvas.bind(null, CanvasRenderer.render);
-exports.toDataURL = renderCanvas.bind(null, CanvasRenderer.renderToDataURL);
-
-// only svg for now.
-exports.toString = renderCanvas.bind(null, function (data, _, opts) {
-  return SvgRenderer.render(data, opts)
-});
-
-},{"./core/qrcode":16,"./renderer/canvas":24,"./renderer/svg-tag.js":25,"can-promise":28}],24:[function(require,module,exports){
-var Utils = require('./utils');
-
-function clearCanvas (ctx, canvas, size) {
-  ctx.clearRect(0, 0, canvas.width, canvas.height);
-
-  if (!canvas.style) canvas.style = {};
-  canvas.height = size;
-  canvas.width = size;
-  canvas.style.height = size + 'px';
-  canvas.style.width = size + 'px';
-}
-
-function getCanvasElement () {
-  try {
-    return document.createElement('canvas')
-  } catch (e) {
-    throw new Error('You need to specify a canvas element')
-  }
-}
-
-exports.render = function render (qrData, canvas, options) {
-  var opts = options;
-  var canvasEl = canvas;
-
-  if (typeof opts === 'undefined' && (!canvas || !canvas.getContext)) {
-    opts = canvas;
-    canvas = undefined;
-  }
-
-  if (!canvas) {
-    canvasEl = getCanvasElement();
-  }
-
-  opts = Utils.getOptions(opts);
-  var size = Utils.getImageWidth(qrData.modules.size, opts);
-
-  var ctx = canvasEl.getContext('2d');
-  var image = ctx.createImageData(size, size);
-  Utils.qrToImageData(image.data, qrData, opts);
-
-  clearCanvas(ctx, canvasEl, size);
-  ctx.putImageData(image, 0, 0);
-
-  return canvasEl
-};
-
-exports.renderToDataURL = function renderToDataURL (qrData, canvas, options) {
-  var opts = options;
-
-  if (typeof opts === 'undefined' && (!canvas || !canvas.getContext)) {
-    opts = canvas;
-    canvas = undefined;
-  }
-
-  if (!opts) opts = {};
-
-  var canvasEl = exports.render(qrData, canvas, opts);
-
-  var type = opts.type || 'image/png';
-  var rendererOpts = opts.rendererOpts || {};
-
-  return canvasEl.toDataURL(type, rendererOpts.quality)
-};
-
-},{"./utils":26}],25:[function(require,module,exports){
-var Utils = require('./utils');
-
-function getColorAttrib (color, attrib) {
-  var alpha = color.a / 255;
-  var str = attrib + '="' + color.hex + '"';
-
-  return alpha < 1
-    ? str + ' ' + attrib + '-opacity="' + alpha.toFixed(2).slice(1) + '"'
-    : str
-}
-
-function svgCmd (cmd, x, y) {
-  var str = cmd + x;
-  if (typeof y !== 'undefined') str += ' ' + y;
-
-  return str
-}
-
-function qrToPath (data, size, margin) {
-  var path = '';
-  var moveBy = 0;
-  var newRow = false;
-  var lineLength = 0;
-
-  for (var i = 0; i < data.length; i++) {
-    var col = Math.floor(i % size);
-    var row = Math.floor(i / size);
-
-    if (!col && !newRow) newRow = true;
-
-    if (data[i]) {
-      lineLength++;
-
-      if (!(i > 0 && col > 0 && data[i - 1])) {
-        path += newRow
-          ? svgCmd('M', col + margin, 0.5 + row + margin)
-          : svgCmd('m', moveBy, 0);
-
-        moveBy = 0;
-        newRow = false;
-      }
-
-      if (!(col + 1 < size && data[i + 1])) {
-        path += svgCmd('h', lineLength);
-        lineLength = 0;
-      }
-    } else {
-      moveBy++;
-    }
-  }
-
-  return path
-}
-
-exports.render = function render (qrData, options, cb) {
-  var opts = Utils.getOptions(options);
-  var size = qrData.modules.size;
-  var data = qrData.modules.data;
-  var qrcodesize = size + opts.margin * 2;
-
-  var bg = !opts.color.light.a
-    ? ''
-    : '<path ' + getColorAttrib(opts.color.light, 'fill') +
-      ' d="M0 0h' + qrcodesize + 'v' + qrcodesize + 'H0z"/>';
-
-  var path =
-    '<path ' + getColorAttrib(opts.color.dark, 'stroke') +
-    ' d="' + qrToPath(data, size, opts.margin) + '"/>';
-
-  var viewBox = 'viewBox="' + '0 0 ' + qrcodesize + ' ' + qrcodesize + '"';
-
-  var width = !opts.width ? '' : 'width="' + opts.width + '" height="' + opts.width + '" ';
-
-  var svgTag = '<svg xmlns="http://www.w3.org/2000/svg" ' + width + viewBox + ' shape-rendering="crispEdges">' + bg + path + '</svg>\n';
-
-  if (typeof cb === 'function') {
-    cb(null, svgTag);
-  }
-
-  return svgTag
-};
-
-},{"./utils":26}],26:[function(require,module,exports){
-function hex2rgba (hex) {
-  if (typeof hex !== 'string') {
-    throw new Error('Color should be defined as hex string')
-  }
-
-  var hexCode = hex.slice().replace('#', '').split('');
-  if (hexCode.length < 3 || hexCode.length === 5 || hexCode.length > 8) {
-    throw new Error('Invalid hex color: ' + hex)
-  }
-
-  // Convert from short to long form (fff -> ffffff)
-  if (hexCode.length === 3 || hexCode.length === 4) {
-    hexCode = Array.prototype.concat.apply([], hexCode.map(function (c) {
-      return [c, c]
-    }));
-  }
-
-  // Add default alpha value
-  if (hexCode.length === 6) hexCode.push('F', 'F');
-
-  var hexValue = parseInt(hexCode.join(''), 16);
-
-  return {
-    r: (hexValue >> 24) & 255,
-    g: (hexValue >> 16) & 255,
-    b: (hexValue >> 8) & 255,
-    a: hexValue & 255,
-    hex: '#' + hexCode.slice(0, 6).join('')
-  }
-}
-
-exports.getOptions = function getOptions (options) {
-  if (!options) options = {};
-  if (!options.color) options.color = {};
-
-  var margin = typeof options.margin === 'undefined' ||
-    options.margin === null ||
-    options.margin < 0 ? 4 : options.margin;
-
-  var width = options.width && options.width >= 21 ? options.width : undefined;
-  var scale = options.scale || 4;
-
-  return {
-    width: width,
-    scale: width ? 4 : scale,
-    margin: margin,
-    color: {
-      dark: hex2rgba(options.color.dark || '#000000ff'),
-      light: hex2rgba(options.color.light || '#ffffffff')
-    },
-    type: options.type,
-    rendererOpts: options.rendererOpts || {}
-  }
-};
-
-exports.getScale = function getScale (qrSize, opts) {
-  return opts.width && opts.width >= qrSize + opts.margin * 2
-    ? opts.width / (qrSize + opts.margin * 2)
-    : opts.scale
-};
-
-exports.getImageWidth = function getImageWidth (qrSize, opts) {
-  var scale = exports.getScale(qrSize, opts);
-  return Math.floor((qrSize + opts.margin * 2) * scale)
-};
-
-exports.qrToImageData = function qrToImageData (imgData, qr, opts) {
-  var size = qr.modules.size;
-  var data = qr.modules.data;
-  var scale = exports.getScale(size, opts);
-  var symbolSize = Math.floor((size + opts.margin * 2) * scale);
-  var scaledMargin = opts.margin * scale;
-  var palette = [opts.color.light, opts.color.dark];
-
-  for (var i = 0; i < symbolSize; i++) {
-    for (var j = 0; j < symbolSize; j++) {
-      var posDst = (i * symbolSize + j) * 4;
-      var pxColor = opts.color.light;
-
-      if (i >= scaledMargin && j >= scaledMargin &&
-        i < symbolSize - scaledMargin && j < symbolSize - scaledMargin) {
-        var iSrc = Math.floor((i - scaledMargin) / scale);
-        var jSrc = Math.floor((j - scaledMargin) / scale);
-        pxColor = palette[data[iSrc * size + jSrc] ? 1 : 0];
-      }
-
-      imgData[posDst++] = pxColor.r;
-      imgData[posDst++] = pxColor.g;
-      imgData[posDst++] = pxColor.b;
-      imgData[posDst] = pxColor.a;
-    }
-  }
-};
-
-},{}],27:[function(require,module,exports){
-
-var isArray = require('isarray');
-
-function typedArraySupport () {
-  // Can typed array instances be augmented?
-  try {
-    var arr = new Uint8Array(1);
-    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }};
-    return arr.foo() === 42
-  } catch (e) {
-    return false
-  }
-}
-
-Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport();
-
-var K_MAX_LENGTH = Buffer.TYPED_ARRAY_SUPPORT
-    ? 0x7fffffff
-    : 0x3fffffff;
-
-function Buffer (arg, offset, length) {
-  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
-    return new Buffer(arg, offset, length)
-  }
-
-  if (typeof arg === 'number') {
-    return allocUnsafe(this, arg)
-  }
-
-  return from(this, arg, offset, length)
-}
-
-if (Buffer.TYPED_ARRAY_SUPPORT) {
-  Buffer.prototype.__proto__ = Uint8Array.prototype;
-  Buffer.__proto__ = Uint8Array;
-
-  // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
-  if (typeof Symbol !== 'undefined' && Symbol.species &&
-      Buffer[Symbol.species] === Buffer) {
-    Object.defineProperty(Buffer, Symbol.species, {
-      value: null,
-      configurable: true,
-      enumerable: false,
-      writable: false
-    });
-  }
-}
-
-function checked (length) {
-  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
-  // length is NaN (which is otherwise coerced to zero.)
-  if (length >= K_MAX_LENGTH) {
-    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
-                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
-  }
-  return length | 0
-}
-
-function isnan (val) {
-  return val !== val // eslint-disable-line no-self-compare
-}
-
-function createBuffer (that, length) {
-  var buf;
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    buf = new Uint8Array(length);
-    buf.__proto__ = Buffer.prototype;
-  } else {
-    // Fallback: Return an object instance of the Buffer class
-    buf = that;
-    if (buf === null) {
-      buf = new Buffer(length);
-    }
-    buf.length = length;
-  }
-
-  return buf
-}
-
-function allocUnsafe (that, size) {
-  var buf = createBuffer(that, size < 0 ? 0 : checked(size) | 0);
-
-  if (!Buffer.TYPED_ARRAY_SUPPORT) {
-    for (var i = 0; i < size; ++i) {
-      buf[i] = 0;
-    }
-  }
-
-  return buf
-}
-
-function fromString (that, string) {
-  var length = byteLength(string) | 0;
-  var buf = createBuffer(that, length);
-
-  var actual = buf.write(string);
-
-  if (actual !== length) {
-    // Writing a hex string, for example, that contains invalid characters will
-    // cause everything after the first invalid character to be ignored. (e.g.
-    // 'abxxcd' will be treated as 'ab')
-    buf = buf.slice(0, actual);
-  }
-
-  return buf
-}
-
-function fromArrayLike (that, array) {
-  var length = array.length < 0 ? 0 : checked(array.length) | 0;
-  var buf = createBuffer(that, length);
-  for (var i = 0; i < length; i += 1) {
-    buf[i] = array[i] & 255;
-  }
-  return buf
-}
-
-function fromArrayBuffer (that, array, byteOffset, length) {
-  if (byteOffset < 0 || array.byteLength < byteOffset) {
-    throw new RangeError('\'offset\' is out of bounds')
-  }
-
-  if (array.byteLength < byteOffset + (length || 0)) {
-    throw new RangeError('\'length\' is out of bounds')
-  }
-
-  var buf;
-  if (byteOffset === undefined && length === undefined) {
-    buf = new Uint8Array(array);
-  } else if (length === undefined) {
-    buf = new Uint8Array(array, byteOffset);
-  } else {
-    buf = new Uint8Array(array, byteOffset, length);
-  }
-
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    // Return an augmented `Uint8Array` instance, for best performance
-    buf.__proto__ = Buffer.prototype;
-  } else {
-    // Fallback: Return an object instance of the Buffer class
-    buf = fromArrayLike(that, buf);
-  }
-
-  return buf
-}
-
-function fromObject (that, obj) {
-  if (Buffer.isBuffer(obj)) {
-    var len = checked(obj.length) | 0;
-    var buf = createBuffer(that, len);
-
-    if (buf.length === 0) {
-      return buf
-    }
-
-    obj.copy(buf, 0, 0, len);
-    return buf
-  }
-
-  if (obj) {
-    if ((typeof ArrayBuffer !== 'undefined' &&
-        obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
-      if (typeof obj.length !== 'number' || isnan(obj.length)) {
-        return createBuffer(that, 0)
-      }
-      return fromArrayLike(that, obj)
-    }
-
-    if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
-      return fromArrayLike(that, obj.data)
-    }
-  }
-
-  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
-}
-
-function utf8ToBytes (string, units) {
-  units = units || Infinity;
-  var codePoint;
-  var length = string.length;
-  var leadSurrogate = null;
-  var bytes = [];
-
-  for (var i = 0; i < length; ++i) {
-    codePoint = string.charCodeAt(i);
-
-    // is surrogate component
-    if (codePoint > 0xD7FF && codePoint < 0xE000) {
-      // last char was a lead
-      if (!leadSurrogate) {
-        // no lead yet
-        if (codePoint > 0xDBFF) {
-          // unexpected trail
-          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
-          continue
-        } else if (i + 1 === length) {
-          // unpaired lead
-          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
-          continue
-        }
-
-        // valid lead
-        leadSurrogate = codePoint;
-
-        continue
-      }
-
-      // 2 leads in a row
-      if (codePoint < 0xDC00) {
-        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
-        leadSurrogate = codePoint;
-        continue
-      }
-
-      // valid surrogate pair
-      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000;
-    } else if (leadSurrogate) {
-      // valid bmp char, but last char was a lead
-      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
-    }
-
-    leadSurrogate = null;
-
-    // encode utf8
-    if (codePoint < 0x80) {
-      if ((units -= 1) < 0) break
-      bytes.push(codePoint);
-    } else if (codePoint < 0x800) {
-      if ((units -= 2) < 0) break
-      bytes.push(
-        codePoint >> 0x6 | 0xC0,
-        codePoint & 0x3F | 0x80
-      );
-    } else if (codePoint < 0x10000) {
-      if ((units -= 3) < 0) break
-      bytes.push(
-        codePoint >> 0xC | 0xE0,
-        codePoint >> 0x6 & 0x3F | 0x80,
-        codePoint & 0x3F | 0x80
-      );
-    } else if (codePoint < 0x110000) {
-      if ((units -= 4) < 0) break
-      bytes.push(
-        codePoint >> 0x12 | 0xF0,
-        codePoint >> 0xC & 0x3F | 0x80,
-        codePoint >> 0x6 & 0x3F | 0x80,
-        codePoint & 0x3F | 0x80
-      );
-    } else {
-      throw new Error('Invalid code point')
-    }
-  }
-
-  return bytes
-}
-
-function byteLength (string) {
-  if (Buffer.isBuffer(string)) {
-    return string.length
-  }
-  if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
-      (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
-    return string.byteLength
-  }
-  if (typeof string !== 'string') {
-    string = '' + string;
-  }
-
-  var len = string.length;
-  if (len === 0) return 0
-
-  return utf8ToBytes(string).length
-}
-
-function blitBuffer (src, dst, offset, length) {
-  for (var i = 0; i < length; ++i) {
-    if ((i + offset >= dst.length) || (i >= src.length)) break
-    dst[i + offset] = src[i];
-  }
-  return i
-}
-
-function utf8Write (buf, string, offset, length) {
-  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
-}
-
-function from (that, value, offset, length) {
-  if (typeof value === 'number') {
-    throw new TypeError('"value" argument must not be a number')
-  }
-
-  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
-    return fromArrayBuffer(that, value, offset, length)
-  }
-
-  if (typeof value === 'string') {
-    return fromString(that, value, offset)
-  }
-
-  return fromObject(that, value)
-}
-
-Buffer.prototype.write = function write (string, offset, length) {
-  // Buffer#write(string)
-  if (offset === undefined) {
-    length = this.length;
-    offset = 0;
-  // Buffer#write(string, encoding)
-  } else if (length === undefined && typeof offset === 'string') {
-    length = this.length;
-    offset = 0;
-  // Buffer#write(string, offset[, length])
-  } else if (isFinite(offset)) {
-    offset = offset | 0;
-    if (isFinite(length)) {
-      length = length | 0;
-    } else {
-      length = undefined;
-    }
-  }
-
-  var remaining = this.length - offset;
-  if (length === undefined || length > remaining) length = remaining;
-
-  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
-    throw new RangeError('Attempt to write outside buffer bounds')
-  }
-
-  return utf8Write(this, string, offset, length)
-};
-
-Buffer.prototype.slice = function slice (start, end) {
-  var len = this.length;
-  start = ~~start;
-  end = end === undefined ? len : ~~end;
-
-  if (start < 0) {
-    start += len;
-    if (start < 0) start = 0;
-  } else if (start > len) {
-    start = len;
-  }
-
-  if (end < 0) {
-    end += len;
-    if (end < 0) end = 0;
-  } else if (end > len) {
-    end = len;
-  }
-
-  if (end < start) end = start;
-
-  var newBuf;
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    newBuf = this.subarray(start, end);
-    // Return an augmented `Uint8Array` instance
-    newBuf.__proto__ = Buffer.prototype;
-  } else {
-    var sliceLen = end - start;
-    newBuf = new Buffer(sliceLen, undefined);
-    for (var i = 0; i < sliceLen; ++i) {
-      newBuf[i] = this[i + start];
-    }
-  }
-
-  return newBuf
-};
-
-Buffer.prototype.copy = function copy (target, targetStart, start, end) {
-  if (!start) start = 0;
-  if (!end && end !== 0) end = this.length;
-  if (targetStart >= target.length) targetStart = target.length;
-  if (!targetStart) targetStart = 0;
-  if (end > 0 && end < start) end = start;
-
-  // Copy 0 bytes; we're done
-  if (end === start) return 0
-  if (target.length === 0 || this.length === 0) return 0
-
-  // Fatal error conditions
-  if (targetStart < 0) {
-    throw new RangeError('targetStart out of bounds')
-  }
-  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
-  if (end < 0) throw new RangeError('sourceEnd out of bounds')
-
-  // Are we oob?
-  if (end > this.length) end = this.length;
-  if (target.length - targetStart < end - start) {
-    end = target.length - targetStart + start;
-  }
-
-  var len = end - start;
-  var i;
-
-  if (this === target && start < targetStart && targetStart < end) {
-    // descending copy from end
-    for (i = len - 1; i >= 0; --i) {
-      target[i + targetStart] = this[i + start];
-    }
-  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
-    // ascending copy from start
-    for (i = 0; i < len; ++i) {
-      target[i + targetStart] = this[i + start];
-    }
-  } else {
-    Uint8Array.prototype.set.call(
-      target,
-      this.subarray(start, start + len),
-      targetStart
-    );
-  }
-
-  return len
-};
-
-Buffer.prototype.fill = function fill (val, start, end) {
-  // Handle string cases:
-  if (typeof val === 'string') {
-    if (typeof start === 'string') {
-      start = 0;
-      end = this.length;
-    } else if (typeof end === 'string') {
-      end = this.length;
-    }
-    if (val.length === 1) {
-      var code = val.charCodeAt(0);
-      if (code < 256) {
-        val = code;
-      }
-    }
-  } else if (typeof val === 'number') {
-    val = val & 255;
-  }
-
-  // Invalid ranges are not set to a default, so can range check early.
-  if (start < 0 || this.length < start || this.length < end) {
-    throw new RangeError('Out of range index')
-  }
-
-  if (end <= start) {
-    return this
-  }
-
-  start = start >>> 0;
-  end = end === undefined ? this.length : end >>> 0;
-
-  if (!val) val = 0;
-
-  var i;
-  if (typeof val === 'number') {
-    for (i = start; i < end; ++i) {
-      this[i] = val;
-    }
-  } else {
-    var bytes = Buffer.isBuffer(val)
-      ? val
-      : new Buffer(val);
-    var len = bytes.length;
-    for (i = 0; i < end - start; ++i) {
-      this[i + start] = bytes[i % len];
-    }
-  }
-
-  return this
-};
-
-Buffer.concat = function concat (list, length) {
-  if (!isArray(list)) {
-    throw new TypeError('"list" argument must be an Array of Buffers')
-  }
-
-  if (list.length === 0) {
-    return createBuffer(null, 0)
-  }
-
-  var i;
-  if (length === undefined) {
-    length = 0;
-    for (i = 0; i < list.length; ++i) {
-      length += list[i].length;
-    }
-  }
-
-  var buffer = allocUnsafe(null, length);
-  var pos = 0;
-  for (i = 0; i < list.length; ++i) {
-    var buf = list[i];
-    if (!Buffer.isBuffer(buf)) {
-      throw new TypeError('"list" argument must be an Array of Buffers')
-    }
-    buf.copy(buffer, pos);
-    pos += buf.length;
-  }
-  return buffer
-};
-
-Buffer.byteLength = byteLength;
-
-Buffer.prototype._isBuffer = true;
-Buffer.isBuffer = function isBuffer (b) {
-  return !!(b != null && b._isBuffer)
-};
-
-module.exports = Buffer;
-
-},{"isarray":30}],28:[function(require,module,exports){
-
-var G = require('window-or-global');
-
-module.exports = function() {
-  return (
-    typeof G.Promise === 'function' &&
-    typeof G.Promise.prototype.then === 'function'
-  )
-};
-
-},{"window-or-global":31}],29:[function(require,module,exports){
-
-/******************************************************************************
- * Created 2008-08-19.
- *
- * Dijkstra path-finding functions. Adapted from the Dijkstar Python project.
- *
- * Copyright (C) 2008
- *   Wyatt Baldwin <self@wyattbaldwin.com>
- *   All rights reserved
- *
- * Licensed under the MIT license.
- *
- *   http://www.opensource.org/licenses/mit-license.php
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *****************************************************************************/
-var dijkstra = {
-  single_source_shortest_paths: function(graph, s, d) {
-    // Predecessor map for each node that has been encountered.
-    // node ID => predecessor node ID
-    var predecessors = {};
-
-    // Costs of shortest paths from s to all nodes encountered.
-    // node ID => cost
-    var costs = {};
-    costs[s] = 0;
-
-    // Costs of shortest paths from s to all nodes encountered; differs from
-    // `costs` in that it provides easy access to the node that currently has
-    // the known shortest path from s.
-    // XXX: Do we actually need both `costs` and `open`?
-    var open = dijkstra.PriorityQueue.make();
-    open.push(s, 0);
-
-    var closest,
-        u, v,
-        cost_of_s_to_u,
-        adjacent_nodes,
-        cost_of_e,
-        cost_of_s_to_u_plus_cost_of_e,
-        cost_of_s_to_v,
-        first_visit;
-    while (!open.empty()) {
-      // In the nodes remaining in graph that have a known cost from s,
-      // find the node, u, that currently has the shortest path from s.
-      closest = open.pop();
-      u = closest.value;
-      cost_of_s_to_u = closest.cost;
-
-      // Get nodes adjacent to u...
-      adjacent_nodes = graph[u] || {};
-
-      // ...and explore the edges that connect u to those nodes, updating
-      // the cost of the shortest paths to any or all of those nodes as
-      // necessary. v is the node across the current edge from u.
-      for (v in adjacent_nodes) {
-        if (adjacent_nodes.hasOwnProperty(v)) {
-          // Get the cost of the edge running from u to v.
-          cost_of_e = adjacent_nodes[v];
-
-          // Cost of s to u plus the cost of u to v across e--this is *a*
-          // cost from s to v that may or may not be less than the current
-          // known cost to v.
-          cost_of_s_to_u_plus_cost_of_e = cost_of_s_to_u + cost_of_e;
-
-          // If we haven't visited v yet OR if the current known cost from s to
-          // v is greater than the new cost we just found (cost of s to u plus
-          // cost of u to v across e), update v's cost in the cost list and
-          // update v's predecessor in the predecessor list (it's now u).
-          cost_of_s_to_v = costs[v];
-          first_visit = (typeof costs[v] === 'undefined');
-          if (first_visit || cost_of_s_to_v > cost_of_s_to_u_plus_cost_of_e) {
-            costs[v] = cost_of_s_to_u_plus_cost_of_e;
-            open.push(v, cost_of_s_to_u_plus_cost_of_e);
-            predecessors[v] = u;
-          }
-        }
-      }
-    }
-
-    if (typeof d !== 'undefined' && typeof costs[d] === 'undefined') {
-      var msg = ['Could not find a path from ', s, ' to ', d, '.'].join('');
-      throw new Error(msg);
-    }
-
-    return predecessors;
-  },
-
-  extract_shortest_path_from_predecessor_list: function(predecessors, d) {
-    var nodes = [];
-    var u = d;
-    var predecessor;
-    while (u) {
-      nodes.push(u);
-      predecessor = predecessors[u];
-      u = predecessors[u];
-    }
-    nodes.reverse();
-    return nodes;
-  },
-
-  find_path: function(graph, s, d) {
-    var predecessors = dijkstra.single_source_shortest_paths(graph, s, d);
-    return dijkstra.extract_shortest_path_from_predecessor_list(
-      predecessors, d);
-  },
-
-  /**
-   * A very naive priority queue implementation.
-   */
-  PriorityQueue: {
-    make: function (opts) {
-      var T = dijkstra.PriorityQueue,
-          t = {},
-          key;
-      opts = opts || {};
-      for (key in T) {
-        if (T.hasOwnProperty(key)) {
-          t[key] = T[key];
-        }
-      }
-      t.queue = [];
-      t.sorter = opts.sorter || T.default_sorter;
-      return t;
-    },
-
-    default_sorter: function (a, b) {
-      return a.cost - b.cost;
-    },
-
-    /**
-     * Add a new item to the queue and ensure the highest priority element
-     * is at the front of the queue.
-     */
-    push: function (value, cost) {
-      var item = {value: value, cost: cost};
-      this.queue.push(item);
-      this.queue.sort(this.sorter);
-    },
-
-    /**
-     * Return the highest priority element in the queue.
-     */
-    pop: function () {
-      return this.queue.shift();
-    },
-
-    empty: function () {
-      return this.queue.length === 0;
-    }
-  }
-};
-
-
-// node.js module exports
-if (typeof module !== 'undefined') {
-  module.exports = dijkstra;
-}
-
-},{}],30:[function(require,module,exports){
-var toString = {}.toString;
-
-module.exports = Array.isArray || function (arr) {
-  return toString.call(arr) == '[object Array]';
-};
-
-},{}],31:[function(require,module,exports){
-(function (global){
-module.exports = (typeof self === 'object' && self.self === self && self) ||
-  (typeof global === 'object' && global.global === global && global) ||
-  this;
-
-}).call(this,typeof commonjsGlobal !== "undefined" ? commonjsGlobal : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {});
-
-},{}]},{},[23])(23)
-});
-
-
-});
-
-var index = {
-  name: 'qrcode',
-  props: {
-    /**
-     * The options for the QR code generator.
-     * {@link https://github.com/soldair/node-qrcode#qr-code-options}
-     */
-    options: Object,
-
-    /**
-     * The tag name of the component's root element.
-     */
-    tag: {
-      type: String,
-      default: 'canvas'
-    },
-
-    /**
-     * The value of the QR code.
-     */
-    value: null
-  },
-  render: function render(createElement) {
-    return createElement(this.tag, this.$slots.default);
-  },
-  watch: {
-    $props: {
-      deep: true,
-      immediate: true,
-      handler: function handler() {
-        if (this.$el) {
-          this.generate();
-        }
-      }
-    }
-  },
-  methods: {
-    /**
-     * Generate QR code.
-     */
-    generate: function generate() {
-      var _this = this;
-
-      var options = this.options,
-          tag = this.tag;
-      var value = String(this.value);
-
-      if (tag === 'canvas') {
-        qrcode.toCanvas(this.$el, value, options, function (error) {
-          if (error) {
-            throw error;
-          }
-        });
-      } else if (tag === 'img') {
-        qrcode.toDataURL(value, options, function (error, url) {
-          if (error) {
-            throw error;
-          }
-
-          _this.$el.src = url;
-        });
-      } else {
-        qrcode.toString(value, options, function (error, string) {
-          if (error) {
-            throw error;
-          }
-
-          _this.$el.innerHTML = string;
-        });
-      }
-    }
-  },
-  mounted: function mounted() {
-    this.generate();
-  }
-};
-
-module.exports = index;
diff --git a/BTCPayServer/wwwroot/vendor/vue-qrcode/vue-qrcode.esm.js b/BTCPayServer/wwwroot/vendor/vue-qrcode/vue-qrcode.esm.js
deleted file mode 100644
index 5bac0f9be..000000000
--- a/BTCPayServer/wwwroot/vendor/vue-qrcode/vue-qrcode.esm.js
+++ /dev/null
@@ -1,3466 +0,0 @@
-/*!
- * vue-qrcode v1.0.0
- * https://fengyuanchen.github.io/vue-qrcode
- *
- * Copyright 2018-present Chen Fengyuan
- * Released under the MIT license
- *
- * Date: 2018-10-21T13:04:02.951Z
- */
-
-var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
-
-function commonjsRequire () {
-	throw new Error('Dynamic requires are not currently supported by rollup-plugin-commonjs');
-}
-
-function createCommonjsModule(fn, module) {
-	return module = { exports: {} }, fn(module, module.exports), module.exports;
-}
-
-var qrcode = createCommonjsModule(function (module, exports) {
-(function(f){{module.exports=f();}})(function(){return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof commonjsRequire&&commonjsRequire;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t);}return n[i].exports}for(var u="function"==typeof commonjsRequire&&commonjsRequire,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
-/**
- * Alignment pattern are fixed reference pattern in defined positions
- * in a matrix symbology, which enables the decode software to re-synchronise
- * the coordinate mapping of the image modules in the event of moderate amounts
- * of distortion of the image.
- *
- * Alignment patterns are present only in QR Code symbols of version 2 or larger
- * and their number depends on the symbol version.
- */
-
-var getSymbolSize = require('./utils').getSymbolSize;
-
-/**
- * Calculate the row/column coordinates of the center module of each alignment pattern
- * for the specified QR Code version.
- *
- * The alignment patterns are positioned symmetrically on either side of the diagonal
- * running from the top left corner of the symbol to the bottom right corner.
- *
- * Since positions are simmetrical only half of the coordinates are returned.
- * Each item of the array will represent in turn the x and y coordinate.
- * @see {@link getPositions}
- *
- * @param  {Number} version QR Code version
- * @return {Array}          Array of coordinate
- */
-exports.getRowColCoords = function getRowColCoords (version) {
-  if (version === 1) return []
-
-  var posCount = Math.floor(version / 7) + 2;
-  var size = getSymbolSize(version);
-  var intervals = size === 145 ? 26 : Math.ceil((size - 13) / (2 * posCount - 2)) * 2;
-  var positions = [size - 7]; // Last coord is always (size - 7)
-
-  for (var i = 1; i < posCount - 1; i++) {
-    positions[i] = positions[i - 1] - intervals;
-  }
-
-  positions.push(6); // First coord is always 6
-
-  return positions.reverse()
-};
-
-/**
- * Returns an array containing the positions of each alignment pattern.
- * Each array's element represent the center point of the pattern as (x, y) coordinates
- *
- * Coordinates are calculated expanding the row/column coordinates returned by {@link getRowColCoords}
- * and filtering out the items that overlaps with finder pattern
- *
- * @example
- * For a Version 7 symbol {@link getRowColCoords} returns values 6, 22 and 38.
- * The alignment patterns, therefore, are to be centered on (row, column)
- * positions (6,22), (22,6), (22,22), (22,38), (38,22), (38,38).
- * Note that the coordinates (6,6), (6,38), (38,6) are occupied by finder patterns
- * and are not therefore used for alignment patterns.
- *
- * var pos = getPositions(7)
- * // [[6,22], [22,6], [22,22], [22,38], [38,22], [38,38]]
- *
- * @param  {Number} version QR Code version
- * @return {Array}          Array of coordinates
- */
-exports.getPositions = function getPositions (version) {
-  var coords = [];
-  var pos = exports.getRowColCoords(version);
-  var posLength = pos.length;
-
-  for (var i = 0; i < posLength; i++) {
-    for (var j = 0; j < posLength; j++) {
-      // Skip if position is occupied by finder patterns
-      if ((i === 0 && j === 0) ||             // top-left
-          (i === 0 && j === posLength - 1) || // bottom-left
-          (i === posLength - 1 && j === 0)) { // top-right
-        continue
-      }
-
-      coords.push([pos[i], pos[j]]);
-    }
-  }
-
-  return coords
-};
-
-},{"./utils":20}],2:[function(require,module,exports){
-var Mode = require('./mode');
-
-/**
- * Array of characters available in alphanumeric mode
- *
- * As per QR Code specification, to each character
- * is assigned a value from 0 to 44 which in this case coincides
- * with the array index
- *
- * @type {Array}
- */
-var ALPHA_NUM_CHARS = [
-  '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
-  'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
-  'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
-  ' ', '$', '%', '*', '+', '-', '.', '/', ':'
-];
-
-function AlphanumericData (data) {
-  this.mode = Mode.ALPHANUMERIC;
-  this.data = data;
-}
-
-AlphanumericData.getBitsLength = function getBitsLength (length) {
-  return 11 * Math.floor(length / 2) + 6 * (length % 2)
-};
-
-AlphanumericData.prototype.getLength = function getLength () {
-  return this.data.length
-};
-
-AlphanumericData.prototype.getBitsLength = function getBitsLength () {
-  return AlphanumericData.getBitsLength(this.data.length)
-};
-
-AlphanumericData.prototype.write = function write (bitBuffer) {
-  var i;
-
-  // Input data characters are divided into groups of two characters
-  // and encoded as 11-bit binary codes.
-  for (i = 0; i + 2 <= this.data.length; i += 2) {
-    // The character value of the first character is multiplied by 45
-    var value = ALPHA_NUM_CHARS.indexOf(this.data[i]) * 45;
-
-    // The character value of the second digit is added to the product
-    value += ALPHA_NUM_CHARS.indexOf(this.data[i + 1]);
-
-    // The sum is then stored as 11-bit binary number
-    bitBuffer.put(value, 11);
-  }
-
-  // If the number of input data characters is not a multiple of two,
-  // the character value of the final character is encoded as a 6-bit binary number.
-  if (this.data.length % 2) {
-    bitBuffer.put(ALPHA_NUM_CHARS.indexOf(this.data[i]), 6);
-  }
-};
-
-module.exports = AlphanumericData;
-
-},{"./mode":13}],3:[function(require,module,exports){
-function BitBuffer () {
-  this.buffer = [];
-  this.length = 0;
-}
-
-BitBuffer.prototype = {
-
-  get: function (index) {
-    var bufIndex = Math.floor(index / 8);
-    return ((this.buffer[bufIndex] >>> (7 - index % 8)) & 1) === 1
-  },
-
-  put: function (num, length) {
-    for (var i = 0; i < length; i++) {
-      this.putBit(((num >>> (length - i - 1)) & 1) === 1);
-    }
-  },
-
-  getLengthInBits: function () {
-    return this.length
-  },
-
-  putBit: function (bit) {
-    var bufIndex = Math.floor(this.length / 8);
-    if (this.buffer.length <= bufIndex) {
-      this.buffer.push(0);
-    }
-
-    if (bit) {
-      this.buffer[bufIndex] |= (0x80 >>> (this.length % 8));
-    }
-
-    this.length++;
-  }
-};
-
-module.exports = BitBuffer;
-
-},{}],4:[function(require,module,exports){
-var Buffer = require('../utils/buffer');
-
-/**
- * Helper class to handle QR Code symbol modules
- *
- * @param {Number} size Symbol size
- */
-function BitMatrix (size) {
-  if (!size || size < 1) {
-    throw new Error('BitMatrix size must be defined and greater than 0')
-  }
-
-  this.size = size;
-  this.data = new Buffer(size * size);
-  this.data.fill(0);
-  this.reservedBit = new Buffer(size * size);
-  this.reservedBit.fill(0);
-}
-
-/**
- * Set bit value at specified location
- * If reserved flag is set, this bit will be ignored during masking process
- *
- * @param {Number}  row
- * @param {Number}  col
- * @param {Boolean} value
- * @param {Boolean} reserved
- */
-BitMatrix.prototype.set = function (row, col, value, reserved) {
-  var index = row * this.size + col;
-  this.data[index] = value;
-  if (reserved) this.reservedBit[index] = true;
-};
-
-/**
- * Returns bit value at specified location
- *
- * @param  {Number}  row
- * @param  {Number}  col
- * @return {Boolean}
- */
-BitMatrix.prototype.get = function (row, col) {
-  return this.data[row * this.size + col]
-};
-
-/**
- * Applies xor operator at specified location
- * (used during masking process)
- *
- * @param {Number}  row
- * @param {Number}  col
- * @param {Boolean} value
- */
-BitMatrix.prototype.xor = function (row, col, value) {
-  this.data[row * this.size + col] ^= value;
-};
-
-/**
- * Check if bit at specified location is reserved
- *
- * @param {Number}   row
- * @param {Number}   col
- * @return {Boolean}
- */
-BitMatrix.prototype.isReserved = function (row, col) {
-  return this.reservedBit[row * this.size + col]
-};
-
-module.exports = BitMatrix;
-
-},{"../utils/buffer":27}],5:[function(require,module,exports){
-var Buffer = require('../utils/buffer');
-var Mode = require('./mode');
-
-function ByteData (data) {
-  this.mode = Mode.BYTE;
-  this.data = new Buffer(data);
-}
-
-ByteData.getBitsLength = function getBitsLength (length) {
-  return length * 8
-};
-
-ByteData.prototype.getLength = function getLength () {
-  return this.data.length
-};
-
-ByteData.prototype.getBitsLength = function getBitsLength () {
-  return ByteData.getBitsLength(this.data.length)
-};
-
-ByteData.prototype.write = function (bitBuffer) {
-  for (var i = 0, l = this.data.length; i < l; i++) {
-    bitBuffer.put(this.data[i], 8);
-  }
-};
-
-module.exports = ByteData;
-
-},{"../utils/buffer":27,"./mode":13}],6:[function(require,module,exports){
-var ECLevel = require('./error-correction-level');
-
-var EC_BLOCKS_TABLE = [
-// L  M  Q  H
-  1, 1, 1, 1,
-  1, 1, 1, 1,
-  1, 1, 2, 2,
-  1, 2, 2, 4,
-  1, 2, 4, 4,
-  2, 4, 4, 4,
-  2, 4, 6, 5,
-  2, 4, 6, 6,
-  2, 5, 8, 8,
-  4, 5, 8, 8,
-  4, 5, 8, 11,
-  4, 8, 10, 11,
-  4, 9, 12, 16,
-  4, 9, 16, 16,
-  6, 10, 12, 18,
-  6, 10, 17, 16,
-  6, 11, 16, 19,
-  6, 13, 18, 21,
-  7, 14, 21, 25,
-  8, 16, 20, 25,
-  8, 17, 23, 25,
-  9, 17, 23, 34,
-  9, 18, 25, 30,
-  10, 20, 27, 32,
-  12, 21, 29, 35,
-  12, 23, 34, 37,
-  12, 25, 34, 40,
-  13, 26, 35, 42,
-  14, 28, 38, 45,
-  15, 29, 40, 48,
-  16, 31, 43, 51,
-  17, 33, 45, 54,
-  18, 35, 48, 57,
-  19, 37, 51, 60,
-  19, 38, 53, 63,
-  20, 40, 56, 66,
-  21, 43, 59, 70,
-  22, 45, 62, 74,
-  24, 47, 65, 77,
-  25, 49, 68, 81
-];
-
-var EC_CODEWORDS_TABLE = [
-// L  M  Q  H
-  7, 10, 13, 17,
-  10, 16, 22, 28,
-  15, 26, 36, 44,
-  20, 36, 52, 64,
-  26, 48, 72, 88,
-  36, 64, 96, 112,
-  40, 72, 108, 130,
-  48, 88, 132, 156,
-  60, 110, 160, 192,
-  72, 130, 192, 224,
-  80, 150, 224, 264,
-  96, 176, 260, 308,
-  104, 198, 288, 352,
-  120, 216, 320, 384,
-  132, 240, 360, 432,
-  144, 280, 408, 480,
-  168, 308, 448, 532,
-  180, 338, 504, 588,
-  196, 364, 546, 650,
-  224, 416, 600, 700,
-  224, 442, 644, 750,
-  252, 476, 690, 816,
-  270, 504, 750, 900,
-  300, 560, 810, 960,
-  312, 588, 870, 1050,
-  336, 644, 952, 1110,
-  360, 700, 1020, 1200,
-  390, 728, 1050, 1260,
-  420, 784, 1140, 1350,
-  450, 812, 1200, 1440,
-  480, 868, 1290, 1530,
-  510, 924, 1350, 1620,
-  540, 980, 1440, 1710,
-  570, 1036, 1530, 1800,
-  570, 1064, 1590, 1890,
-  600, 1120, 1680, 1980,
-  630, 1204, 1770, 2100,
-  660, 1260, 1860, 2220,
-  720, 1316, 1950, 2310,
-  750, 1372, 2040, 2430
-];
-
-/**
- * Returns the number of error correction block that the QR Code should contain
- * for the specified version and error correction level.
- *
- * @param  {Number} version              QR Code version
- * @param  {Number} errorCorrectionLevel Error correction level
- * @return {Number}                      Number of error correction blocks
- */
-exports.getBlocksCount = function getBlocksCount (version, errorCorrectionLevel) {
-  switch (errorCorrectionLevel) {
-    case ECLevel.L:
-      return EC_BLOCKS_TABLE[(version - 1) * 4 + 0]
-    case ECLevel.M:
-      return EC_BLOCKS_TABLE[(version - 1) * 4 + 1]
-    case ECLevel.Q:
-      return EC_BLOCKS_TABLE[(version - 1) * 4 + 2]
-    case ECLevel.H:
-      return EC_BLOCKS_TABLE[(version - 1) * 4 + 3]
-    default:
-      return undefined
-  }
-};
-
-/**
- * Returns the number of error correction codewords to use for the specified
- * version and error correction level.
- *
- * @param  {Number} version              QR Code version
- * @param  {Number} errorCorrectionLevel Error correction level
- * @return {Number}                      Number of error correction codewords
- */
-exports.getTotalCodewordsCount = function getTotalCodewordsCount (version, errorCorrectionLevel) {
-  switch (errorCorrectionLevel) {
-    case ECLevel.L:
-      return EC_CODEWORDS_TABLE[(version - 1) * 4 + 0]
-    case ECLevel.M:
-      return EC_CODEWORDS_TABLE[(version - 1) * 4 + 1]
-    case ECLevel.Q:
-      return EC_CODEWORDS_TABLE[(version - 1) * 4 + 2]
-    case ECLevel.H:
-      return EC_CODEWORDS_TABLE[(version - 1) * 4 + 3]
-    default:
-      return undefined
-  }
-};
-
-},{"./error-correction-level":7}],7:[function(require,module,exports){
-exports.L = { bit: 1 };
-exports.M = { bit: 0 };
-exports.Q = { bit: 3 };
-exports.H = { bit: 2 };
-
-function fromString (string) {
-  if (typeof string !== 'string') {
-    throw new Error('Param is not a string')
-  }
-
-  var lcStr = string.toLowerCase();
-
-  switch (lcStr) {
-    case 'l':
-    case 'low':
-      return exports.L
-
-    case 'm':
-    case 'medium':
-      return exports.M
-
-    case 'q':
-    case 'quartile':
-      return exports.Q
-
-    case 'h':
-    case 'high':
-      return exports.H
-
-    default:
-      throw new Error('Unknown EC Level: ' + string)
-  }
-}
-
-exports.isValid = function isValid (level) {
-  return level && typeof level.bit !== 'undefined' &&
-    level.bit >= 0 && level.bit < 4
-};
-
-exports.from = function from (value, defaultValue) {
-  if (exports.isValid(value)) {
-    return value
-  }
-
-  try {
-    return fromString(value)
-  } catch (e) {
-    return defaultValue
-  }
-};
-
-},{}],8:[function(require,module,exports){
-var getSymbolSize = require('./utils').getSymbolSize;
-var FINDER_PATTERN_SIZE = 7;
-
-/**
- * Returns an array containing the positions of each finder pattern.
- * Each array's element represent the top-left point of the pattern as (x, y) coordinates
- *
- * @param  {Number} version QR Code version
- * @return {Array}          Array of coordinates
- */
-exports.getPositions = function getPositions (version) {
-  var size = getSymbolSize(version);
-
-  return [
-    // top-left
-    [0, 0],
-    // top-right
-    [size - FINDER_PATTERN_SIZE, 0],
-    // bottom-left
-    [0, size - FINDER_PATTERN_SIZE]
-  ]
-};
-
-},{"./utils":20}],9:[function(require,module,exports){
-var Utils = require('./utils');
-
-var G15 = (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0);
-var G15_MASK = (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1);
-var G15_BCH = Utils.getBCHDigit(G15);
-
-/**
- * Returns format information with relative error correction bits
- *
- * The format information is a 15-bit sequence containing 5 data bits,
- * with 10 error correction bits calculated using the (15, 5) BCH code.
- *
- * @param  {Number} errorCorrectionLevel Error correction level
- * @param  {Number} mask                 Mask pattern
- * @return {Number}                      Encoded format information bits
- */
-exports.getEncodedBits = function getEncodedBits (errorCorrectionLevel, mask) {
-  var data = ((errorCorrectionLevel.bit << 3) | mask);
-  var d = data << 10;
-
-  while (Utils.getBCHDigit(d) - G15_BCH >= 0) {
-    d ^= (G15 << (Utils.getBCHDigit(d) - G15_BCH));
-  }
-
-  // xor final data with mask pattern in order to ensure that
-  // no combination of Error Correction Level and data mask pattern
-  // will result in an all-zero data string
-  return ((data << 10) | d) ^ G15_MASK
-};
-
-},{"./utils":20}],10:[function(require,module,exports){
-var Buffer = require('../utils/buffer');
-
-var EXP_TABLE = new Buffer(512);
-var LOG_TABLE = new Buffer(256)
-
-/**
- * Precompute the log and anti-log tables for faster computation later
- *
- * For each possible value in the galois field 2^8, we will pre-compute
- * the logarithm and anti-logarithm (exponential) of this value
- *
- * ref {@link https://en.wikiversity.org/wiki/Reed%E2%80%93Solomon_codes_for_coders#Introduction_to_mathematical_fields}
- */
-;(function initTables () {
-  var x = 1;
-  for (var i = 0; i < 255; i++) {
-    EXP_TABLE[i] = x;
-    LOG_TABLE[x] = i;
-
-    x <<= 1; // multiply by 2
-
-    // The QR code specification says to use byte-wise modulo 100011101 arithmetic.
-    // This means that when a number is 256 or larger, it should be XORed with 0x11D.
-    if (x & 0x100) { // similar to x >= 256, but a lot faster (because 0x100 == 256)
-      x ^= 0x11D;
-    }
-  }
-
-  // Optimization: double the size of the anti-log table so that we don't need to mod 255 to
-  // stay inside the bounds (because we will mainly use this table for the multiplication of
-  // two GF numbers, no more).
-  // @see {@link mul}
-  for (i = 255; i < 512; i++) {
-    EXP_TABLE[i] = EXP_TABLE[i - 255];
-  }
-}());
-
-/**
- * Returns log value of n inside Galois Field
- *
- * @param  {Number} n
- * @return {Number}
- */
-exports.log = function log (n) {
-  if (n < 1) throw new Error('log(' + n + ')')
-  return LOG_TABLE[n]
-};
-
-/**
- * Returns anti-log value of n inside Galois Field
- *
- * @param  {Number} n
- * @return {Number}
- */
-exports.exp = function exp (n) {
-  return EXP_TABLE[n]
-};
-
-/**
- * Multiplies two number inside Galois Field
- *
- * @param  {Number} x
- * @param  {Number} y
- * @return {Number}
- */
-exports.mul = function mul (x, y) {
-  if (x === 0 || y === 0) return 0
-
-  // should be EXP_TABLE[(LOG_TABLE[x] + LOG_TABLE[y]) % 255] if EXP_TABLE wasn't oversized
-  // @see {@link initTables}
-  return EXP_TABLE[LOG_TABLE[x] + LOG_TABLE[y]]
-};
-
-},{"../utils/buffer":27}],11:[function(require,module,exports){
-var Mode = require('./mode');
-var Utils = require('./utils');
-
-function KanjiData (data) {
-  this.mode = Mode.KANJI;
-  this.data = data;
-}
-
-KanjiData.getBitsLength = function getBitsLength (length) {
-  return length * 13
-};
-
-KanjiData.prototype.getLength = function getLength () {
-  return this.data.length
-};
-
-KanjiData.prototype.getBitsLength = function getBitsLength () {
-  return KanjiData.getBitsLength(this.data.length)
-};
-
-KanjiData.prototype.write = function (bitBuffer) {
-  var i;
-
-  // In the Shift JIS system, Kanji characters are represented by a two byte combination.
-  // These byte values are shifted from the JIS X 0208 values.
-  // JIS X 0208 gives details of the shift coded representation.
-  for (i = 0; i < this.data.length; i++) {
-    var value = Utils.toSJIS(this.data[i]);
-
-    // For characters with Shift JIS values from 0x8140 to 0x9FFC:
-    if (value >= 0x8140 && value <= 0x9FFC) {
-      // Subtract 0x8140 from Shift JIS value
-      value -= 0x8140;
-
-    // For characters with Shift JIS values from 0xE040 to 0xEBBF
-    } else if (value >= 0xE040 && value <= 0xEBBF) {
-      // Subtract 0xC140 from Shift JIS value
-      value -= 0xC140;
-    } else {
-      throw new Error(
-        'Invalid SJIS character: ' + this.data[i] + '\n' +
-        'Make sure your charset is UTF-8')
-    }
-
-    // Multiply most significant byte of result by 0xC0
-    // and add least significant byte to product
-    value = (((value >>> 8) & 0xff) * 0xC0) + (value & 0xff);
-
-    // Convert result to a 13-bit binary string
-    bitBuffer.put(value, 13);
-  }
-};
-
-module.exports = KanjiData;
-
-},{"./mode":13,"./utils":20}],12:[function(require,module,exports){
-/**
- * Data mask pattern reference
- * @type {Object}
- */
-exports.Patterns = {
-  PATTERN000: 0,
-  PATTERN001: 1,
-  PATTERN010: 2,
-  PATTERN011: 3,
-  PATTERN100: 4,
-  PATTERN101: 5,
-  PATTERN110: 6,
-  PATTERN111: 7
-};
-
-/**
- * Weighted penalty scores for the undesirable features
- * @type {Object}
- */
-var PenaltyScores = {
-  N1: 3,
-  N2: 3,
-  N3: 40,
-  N4: 10
-};
-
-/**
- * Check if mask pattern value is valid
- *
- * @param  {Number}  mask    Mask pattern
- * @return {Boolean}         true if valid, false otherwise
- */
-exports.isValid = function isValid (mask) {
-  return mask != null && mask !== '' && !isNaN(mask) && mask >= 0 && mask <= 7
-};
-
-/**
- * Returns mask pattern from a value.
- * If value is not valid, returns undefined
- *
- * @param  {Number|String} value        Mask pattern value
- * @return {Number}                     Valid mask pattern or undefined
- */
-exports.from = function from (value) {
-  return exports.isValid(value) ? parseInt(value, 10) : undefined
-};
-
-/**
-* Find adjacent modules in row/column with the same color
-* and assign a penalty value.
-*
-* Points: N1 + i
-* i is the amount by which the number of adjacent modules of the same color exceeds 5
-*/
-exports.getPenaltyN1 = function getPenaltyN1 (data) {
-  var size = data.size;
-  var points = 0;
-  var sameCountCol = 0;
-  var sameCountRow = 0;
-  var lastCol = null;
-  var lastRow = null;
-
-  for (var row = 0; row < size; row++) {
-    sameCountCol = sameCountRow = 0;
-    lastCol = lastRow = null;
-
-    for (var col = 0; col < size; col++) {
-      var module = data.get(row, col);
-      if (module === lastCol) {
-        sameCountCol++;
-      } else {
-        if (sameCountCol >= 5) points += PenaltyScores.N1 + (sameCountCol - 5);
-        lastCol = module;
-        sameCountCol = 1;
-      }
-
-      module = data.get(col, row);
-      if (module === lastRow) {
-        sameCountRow++;
-      } else {
-        if (sameCountRow >= 5) points += PenaltyScores.N1 + (sameCountRow - 5);
-        lastRow = module;
-        sameCountRow = 1;
-      }
-    }
-
-    if (sameCountCol >= 5) points += PenaltyScores.N1 + (sameCountCol - 5);
-    if (sameCountRow >= 5) points += PenaltyScores.N1 + (sameCountRow - 5);
-  }
-
-  return points
-};
-
-/**
- * Find 2x2 blocks with the same color and assign a penalty value
- *
- * Points: N2 * (m - 1) * (n - 1)
- */
-exports.getPenaltyN2 = function getPenaltyN2 (data) {
-  var size = data.size;
-  var points = 0;
-
-  for (var row = 0; row < size - 1; row++) {
-    for (var col = 0; col < size - 1; col++) {
-      var last = data.get(row, col) +
-        data.get(row, col + 1) +
-        data.get(row + 1, col) +
-        data.get(row + 1, col + 1);
-
-      if (last === 4 || last === 0) points++;
-    }
-  }
-
-  return points * PenaltyScores.N2
-};
-
-/**
- * Find 1:1:3:1:1 ratio (dark:light:dark:light:dark) pattern in row/column,
- * preceded or followed by light area 4 modules wide
- *
- * Points: N3 * number of pattern found
- */
-exports.getPenaltyN3 = function getPenaltyN3 (data) {
-  var size = data.size;
-  var points = 0;
-  var bitsCol = 0;
-  var bitsRow = 0;
-
-  for (var row = 0; row < size; row++) {
-    bitsCol = bitsRow = 0;
-    for (var col = 0; col < size; col++) {
-      bitsCol = ((bitsCol << 1) & 0x7FF) | data.get(row, col);
-      if (col >= 10 && (bitsCol === 0x5D0 || bitsCol === 0x05D)) points++;
-
-      bitsRow = ((bitsRow << 1) & 0x7FF) | data.get(col, row);
-      if (col >= 10 && (bitsRow === 0x5D0 || bitsRow === 0x05D)) points++;
-    }
-  }
-
-  return points * PenaltyScores.N3
-};
-
-/**
- * Calculate proportion of dark modules in entire symbol
- *
- * Points: N4 * k
- *
- * k is the rating of the deviation of the proportion of dark modules
- * in the symbol from 50% in steps of 5%
- */
-exports.getPenaltyN4 = function getPenaltyN4 (data) {
-  var darkCount = 0;
-  var modulesCount = data.data.length;
-
-  for (var i = 0; i < modulesCount; i++) darkCount += data.data[i];
-
-  var k = Math.abs(Math.ceil((darkCount * 100 / modulesCount) / 5) - 10);
-
-  return k * PenaltyScores.N4
-};
-
-/**
- * Return mask value at given position
- *
- * @param  {Number} maskPattern Pattern reference value
- * @param  {Number} i           Row
- * @param  {Number} j           Column
- * @return {Boolean}            Mask value
- */
-function getMaskAt (maskPattern, i, j) {
-  switch (maskPattern) {
-    case exports.Patterns.PATTERN000: return (i + j) % 2 === 0
-    case exports.Patterns.PATTERN001: return i % 2 === 0
-    case exports.Patterns.PATTERN010: return j % 3 === 0
-    case exports.Patterns.PATTERN011: return (i + j) % 3 === 0
-    case exports.Patterns.PATTERN100: return (Math.floor(i / 2) + Math.floor(j / 3)) % 2 === 0
-    case exports.Patterns.PATTERN101: return (i * j) % 2 + (i * j) % 3 === 0
-    case exports.Patterns.PATTERN110: return ((i * j) % 2 + (i * j) % 3) % 2 === 0
-    case exports.Patterns.PATTERN111: return ((i * j) % 3 + (i + j) % 2) % 2 === 0
-
-    default: throw new Error('bad maskPattern:' + maskPattern)
-  }
-}
-
-/**
- * Apply a mask pattern to a BitMatrix
- *
- * @param  {Number}    pattern Pattern reference number
- * @param  {BitMatrix} data    BitMatrix data
- */
-exports.applyMask = function applyMask (pattern, data) {
-  var size = data.size;
-
-  for (var col = 0; col < size; col++) {
-    for (var row = 0; row < size; row++) {
-      if (data.isReserved(row, col)) continue
-      data.xor(row, col, getMaskAt(pattern, row, col));
-    }
-  }
-};
-
-/**
- * Returns the best mask pattern for data
- *
- * @param  {BitMatrix} data
- * @return {Number} Mask pattern reference number
- */
-exports.getBestMask = function getBestMask (data, setupFormatFunc) {
-  var numPatterns = Object.keys(exports.Patterns).length;
-  var bestPattern = 0;
-  var lowerPenalty = Infinity;
-
-  for (var p = 0; p < numPatterns; p++) {
-    setupFormatFunc(p);
-    exports.applyMask(p, data);
-
-    // Calculate penalty
-    var penalty =
-      exports.getPenaltyN1(data) +
-      exports.getPenaltyN2(data) +
-      exports.getPenaltyN3(data) +
-      exports.getPenaltyN4(data);
-
-    // Undo previously applied mask
-    exports.applyMask(p, data);
-
-    if (penalty < lowerPenalty) {
-      lowerPenalty = penalty;
-      bestPattern = p;
-    }
-  }
-
-  return bestPattern
-};
-
-},{}],13:[function(require,module,exports){
-var VersionCheck = require('./version-check');
-var Regex = require('./regex');
-
-/**
- * Numeric mode encodes data from the decimal digit set (0 - 9)
- * (byte values 30HEX to 39HEX).
- * Normally, 3 data characters are represented by 10 bits.
- *
- * @type {Object}
- */
-exports.NUMERIC = {
-  id: 'Numeric',
-  bit: 1 << 0,
-  ccBits: [10, 12, 14]
-};
-
-/**
- * Alphanumeric mode encodes data from a set of 45 characters,
- * i.e. 10 numeric digits (0 - 9),
- *      26 alphabetic characters (A - Z),
- *   and 9 symbols (SP, $, %, *, +, -, ., /, :).
- * Normally, two input characters are represented by 11 bits.
- *
- * @type {Object}
- */
-exports.ALPHANUMERIC = {
-  id: 'Alphanumeric',
-  bit: 1 << 1,
-  ccBits: [9, 11, 13]
-};
-
-/**
- * In byte mode, data is encoded at 8 bits per character.
- *
- * @type {Object}
- */
-exports.BYTE = {
-  id: 'Byte',
-  bit: 1 << 2,
-  ccBits: [8, 16, 16]
-};
-
-/**
- * The Kanji mode efficiently encodes Kanji characters in accordance with
- * the Shift JIS system based on JIS X 0208.
- * The Shift JIS values are shifted from the JIS X 0208 values.
- * JIS X 0208 gives details of the shift coded representation.
- * Each two-byte character value is compacted to a 13-bit binary codeword.
- *
- * @type {Object}
- */
-exports.KANJI = {
-  id: 'Kanji',
-  bit: 1 << 3,
-  ccBits: [8, 10, 12]
-};
-
-/**
- * Mixed mode will contain a sequences of data in a combination of any of
- * the modes described above
- *
- * @type {Object}
- */
-exports.MIXED = {
-  bit: -1
-};
-
-/**
- * Returns the number of bits needed to store the data length
- * according to QR Code specifications.
- *
- * @param  {Mode}   mode    Data mode
- * @param  {Number} version QR Code version
- * @return {Number}         Number of bits
- */
-exports.getCharCountIndicator = function getCharCountIndicator (mode, version) {
-  if (!mode.ccBits) throw new Error('Invalid mode: ' + mode)
-
-  if (!VersionCheck.isValid(version)) {
-    throw new Error('Invalid version: ' + version)
-  }
-
-  if (version >= 1 && version < 10) return mode.ccBits[0]
-  else if (version < 27) return mode.ccBits[1]
-  return mode.ccBits[2]
-};
-
-/**
- * Returns the most efficient mode to store the specified data
- *
- * @param  {String} dataStr Input data string
- * @return {Mode}           Best mode
- */
-exports.getBestModeForData = function getBestModeForData (dataStr) {
-  if (Regex.testNumeric(dataStr)) return exports.NUMERIC
-  else if (Regex.testAlphanumeric(dataStr)) return exports.ALPHANUMERIC
-  else if (Regex.testKanji(dataStr)) return exports.KANJI
-  else return exports.BYTE
-};
-
-/**
- * Return mode name as string
- *
- * @param {Mode} mode Mode object
- * @returns {String}  Mode name
- */
-exports.toString = function toString (mode) {
-  if (mode && mode.id) return mode.id
-  throw new Error('Invalid mode')
-};
-
-/**
- * Check if input param is a valid mode object
- *
- * @param   {Mode}    mode Mode object
- * @returns {Boolean} True if valid mode, false otherwise
- */
-exports.isValid = function isValid (mode) {
-  return mode && mode.bit && mode.ccBits
-};
-
-/**
- * Get mode object from its name
- *
- * @param   {String} string Mode name
- * @returns {Mode}          Mode object
- */
-function fromString (string) {
-  if (typeof string !== 'string') {
-    throw new Error('Param is not a string')
-  }
-
-  var lcStr = string.toLowerCase();
-
-  switch (lcStr) {
-    case 'numeric':
-      return exports.NUMERIC
-    case 'alphanumeric':
-      return exports.ALPHANUMERIC
-    case 'kanji':
-      return exports.KANJI
-    case 'byte':
-      return exports.BYTE
-    default:
-      throw new Error('Unknown mode: ' + string)
-  }
-}
-
-/**
- * Returns mode from a value.
- * If value is not a valid mode, returns defaultValue
- *
- * @param  {Mode|String} value        Encoding mode
- * @param  {Mode}        defaultValue Fallback value
- * @return {Mode}                     Encoding mode
- */
-exports.from = function from (value, defaultValue) {
-  if (exports.isValid(value)) {
-    return value
-  }
-
-  try {
-    return fromString(value)
-  } catch (e) {
-    return defaultValue
-  }
-};
-
-},{"./regex":18,"./version-check":21}],14:[function(require,module,exports){
-var Mode = require('./mode');
-
-function NumericData (data) {
-  this.mode = Mode.NUMERIC;
-  this.data = data.toString();
-}
-
-NumericData.getBitsLength = function getBitsLength (length) {
-  return 10 * Math.floor(length / 3) + ((length % 3) ? ((length % 3) * 3 + 1) : 0)
-};
-
-NumericData.prototype.getLength = function getLength () {
-  return this.data.length
-};
-
-NumericData.prototype.getBitsLength = function getBitsLength () {
-  return NumericData.getBitsLength(this.data.length)
-};
-
-NumericData.prototype.write = function write (bitBuffer) {
-  var i, group, value;
-
-  // The input data string is divided into groups of three digits,
-  // and each group is converted to its 10-bit binary equivalent.
-  for (i = 0; i + 3 <= this.data.length; i += 3) {
-    group = this.data.substr(i, 3);
-    value = parseInt(group, 10);
-
-    bitBuffer.put(value, 10);
-  }
-
-  // If the number of input digits is not an exact multiple of three,
-  // the final one or two digits are converted to 4 or 7 bits respectively.
-  var remainingNum = this.data.length - i;
-  if (remainingNum > 0) {
-    group = this.data.substr(i);
-    value = parseInt(group, 10);
-
-    bitBuffer.put(value, remainingNum * 3 + 1);
-  }
-};
-
-module.exports = NumericData;
-
-},{"./mode":13}],15:[function(require,module,exports){
-var Buffer = require('../utils/buffer');
-var GF = require('./galois-field');
-
-/**
- * Multiplies two polynomials inside Galois Field
- *
- * @param  {Buffer} p1 Polynomial
- * @param  {Buffer} p2 Polynomial
- * @return {Buffer}    Product of p1 and p2
- */
-exports.mul = function mul (p1, p2) {
-  var coeff = new Buffer(p1.length + p2.length - 1);
-  coeff.fill(0);
-
-  for (var i = 0; i < p1.length; i++) {
-    for (var j = 0; j < p2.length; j++) {
-      coeff[i + j] ^= GF.mul(p1[i], p2[j]);
-    }
-  }
-
-  return coeff
-};
-
-/**
- * Calculate the remainder of polynomials division
- *
- * @param  {Buffer} divident Polynomial
- * @param  {Buffer} divisor  Polynomial
- * @return {Buffer}          Remainder
- */
-exports.mod = function mod (divident, divisor) {
-  var result = new Buffer(divident);
-
-  while ((result.length - divisor.length) >= 0) {
-    var coeff = result[0];
-
-    for (var i = 0; i < divisor.length; i++) {
-      result[i] ^= GF.mul(divisor[i], coeff);
-    }
-
-    // remove all zeros from buffer head
-    var offset = 0;
-    while (offset < result.length && result[offset] === 0) offset++;
-    result = result.slice(offset);
-  }
-
-  return result
-};
-
-/**
- * Generate an irreducible generator polynomial of specified degree
- * (used by Reed-Solomon encoder)
- *
- * @param  {Number} degree Degree of the generator polynomial
- * @return {Buffer}        Buffer containing polynomial coefficients
- */
-exports.generateECPolynomial = function generateECPolynomial (degree) {
-  var poly = new Buffer([1]);
-  for (var i = 0; i < degree; i++) {
-    poly = exports.mul(poly, [1, GF.exp(i)]);
-  }
-
-  return poly
-};
-
-},{"../utils/buffer":27,"./galois-field":10}],16:[function(require,module,exports){
-var Buffer = require('../utils/buffer');
-var Utils = require('./utils');
-var ECLevel = require('./error-correction-level');
-var BitBuffer = require('./bit-buffer');
-var BitMatrix = require('./bit-matrix');
-var AlignmentPattern = require('./alignment-pattern');
-var FinderPattern = require('./finder-pattern');
-var MaskPattern = require('./mask-pattern');
-var ECCode = require('./error-correction-code');
-var ReedSolomonEncoder = require('./reed-solomon-encoder');
-var Version = require('./version');
-var FormatInfo = require('./format-info');
-var Mode = require('./mode');
-var Segments = require('./segments');
-var isArray = require('isarray');
-
-/**
- * QRCode for JavaScript
- *
- * modified by Ryan Day for nodejs support
- * Copyright (c) 2011 Ryan Day
- *
- * Licensed under the MIT license:
- *   http://www.opensource.org/licenses/mit-license.php
- *
-//---------------------------------------------------------------------
-// QRCode for JavaScript
-//
-// Copyright (c) 2009 Kazuhiko Arase
-//
-// URL: http://www.d-project.com/
-//
-// Licensed under the MIT license:
-//   http://www.opensource.org/licenses/mit-license.php
-//
-// The word "QR Code" is registered trademark of
-// DENSO WAVE INCORPORATED
-//   http://www.denso-wave.com/qrcode/faqpatent-e.html
-//
-//---------------------------------------------------------------------
-*/
-
-/**
- * Add finder patterns bits to matrix
- *
- * @param  {BitMatrix} matrix  Modules matrix
- * @param  {Number}    version QR Code version
- */
-function setupFinderPattern (matrix, version) {
-  var size = matrix.size;
-  var pos = FinderPattern.getPositions(version);
-
-  for (var i = 0; i < pos.length; i++) {
-    var row = pos[i][0];
-    var col = pos[i][1];
-
-    for (var r = -1; r <= 7; r++) {
-      if (row + r <= -1 || size <= row + r) continue
-
-      for (var c = -1; c <= 7; c++) {
-        if (col + c <= -1 || size <= col + c) continue
-
-        if ((r >= 0 && r <= 6 && (c === 0 || c === 6)) ||
-          (c >= 0 && c <= 6 && (r === 0 || r === 6)) ||
-          (r >= 2 && r <= 4 && c >= 2 && c <= 4)) {
-          matrix.set(row + r, col + c, true, true);
-        } else {
-          matrix.set(row + r, col + c, false, true);
-        }
-      }
-    }
-  }
-}
-
-/**
- * Add timing pattern bits to matrix
- *
- * Note: this function must be called before {@link setupAlignmentPattern}
- *
- * @param  {BitMatrix} matrix Modules matrix
- */
-function setupTimingPattern (matrix) {
-  var size = matrix.size;
-
-  for (var r = 8; r < size - 8; r++) {
-    var value = r % 2 === 0;
-    matrix.set(r, 6, value, true);
-    matrix.set(6, r, value, true);
-  }
-}
-
-/**
- * Add alignment patterns bits to matrix
- *
- * Note: this function must be called after {@link setupTimingPattern}
- *
- * @param  {BitMatrix} matrix  Modules matrix
- * @param  {Number}    version QR Code version
- */
-function setupAlignmentPattern (matrix, version) {
-  var pos = AlignmentPattern.getPositions(version);
-
-  for (var i = 0; i < pos.length; i++) {
-    var row = pos[i][0];
-    var col = pos[i][1];
-
-    for (var r = -2; r <= 2; r++) {
-      for (var c = -2; c <= 2; c++) {
-        if (r === -2 || r === 2 || c === -2 || c === 2 ||
-          (r === 0 && c === 0)) {
-          matrix.set(row + r, col + c, true, true);
-        } else {
-          matrix.set(row + r, col + c, false, true);
-        }
-      }
-    }
-  }
-}
-
-/**
- * Add version info bits to matrix
- *
- * @param  {BitMatrix} matrix  Modules matrix
- * @param  {Number}    version QR Code version
- */
-function setupVersionInfo (matrix, version) {
-  var size = matrix.size;
-  var bits = Version.getEncodedBits(version);
-  var row, col, mod;
-
-  for (var i = 0; i < 18; i++) {
-    row = Math.floor(i / 3);
-    col = i % 3 + size - 8 - 3;
-    mod = ((bits >> i) & 1) === 1;
-
-    matrix.set(row, col, mod, true);
-    matrix.set(col, row, mod, true);
-  }
-}
-
-/**
- * Add format info bits to matrix
- *
- * @param  {BitMatrix} matrix               Modules matrix
- * @param  {ErrorCorrectionLevel}    errorCorrectionLevel Error correction level
- * @param  {Number}    maskPattern          Mask pattern reference value
- */
-function setupFormatInfo (matrix, errorCorrectionLevel, maskPattern) {
-  var size = matrix.size;
-  var bits = FormatInfo.getEncodedBits(errorCorrectionLevel, maskPattern);
-  var i, mod;
-
-  for (i = 0; i < 15; i++) {
-    mod = ((bits >> i) & 1) === 1;
-
-    // vertical
-    if (i < 6) {
-      matrix.set(i, 8, mod, true);
-    } else if (i < 8) {
-      matrix.set(i + 1, 8, mod, true);
-    } else {
-      matrix.set(size - 15 + i, 8, mod, true);
-    }
-
-    // horizontal
-    if (i < 8) {
-      matrix.set(8, size - i - 1, mod, true);
-    } else if (i < 9) {
-      matrix.set(8, 15 - i - 1 + 1, mod, true);
-    } else {
-      matrix.set(8, 15 - i - 1, mod, true);
-    }
-  }
-
-  // fixed module
-  matrix.set(size - 8, 8, 1, true);
-}
-
-/**
- * Add encoded data bits to matrix
- *
- * @param  {BitMatrix} matrix Modules matrix
- * @param  {Buffer}    data   Data codewords
- */
-function setupData (matrix, data) {
-  var size = matrix.size;
-  var inc = -1;
-  var row = size - 1;
-  var bitIndex = 7;
-  var byteIndex = 0;
-
-  for (var col = size - 1; col > 0; col -= 2) {
-    if (col === 6) col--;
-
-    while (true) {
-      for (var c = 0; c < 2; c++) {
-        if (!matrix.isReserved(row, col - c)) {
-          var dark = false;
-
-          if (byteIndex < data.length) {
-            dark = (((data[byteIndex] >>> bitIndex) & 1) === 1);
-          }
-
-          matrix.set(row, col - c, dark);
-          bitIndex--;
-
-          if (bitIndex === -1) {
-            byteIndex++;
-            bitIndex = 7;
-          }
-        }
-      }
-
-      row += inc;
-
-      if (row < 0 || size <= row) {
-        row -= inc;
-        inc = -inc;
-        break
-      }
-    }
-  }
-}
-
-/**
- * Create encoded codewords from data input
- *
- * @param  {Number}   version              QR Code version
- * @param  {ErrorCorrectionLevel}   errorCorrectionLevel Error correction level
- * @param  {ByteData} data                 Data input
- * @return {Buffer}                        Buffer containing encoded codewords
- */
-function createData (version, errorCorrectionLevel, segments) {
-  // Prepare data buffer
-  var buffer = new BitBuffer();
-
-  segments.forEach(function (data) {
-    // prefix data with mode indicator (4 bits)
-    buffer.put(data.mode.bit, 4);
-
-    // Prefix data with character count indicator.
-    // The character count indicator is a string of bits that represents the
-    // number of characters that are being encoded.
-    // The character count indicator must be placed after the mode indicator
-    // and must be a certain number of bits long, depending on the QR version
-    // and data mode
-    // @see {@link Mode.getCharCountIndicator}.
-    buffer.put(data.getLength(), Mode.getCharCountIndicator(data.mode, version));
-
-    // add binary data sequence to buffer
-    data.write(buffer);
-  });
-
-  // Calculate required number of bits
-  var totalCodewords = Utils.getSymbolTotalCodewords(version);
-  var ecTotalCodewords = ECCode.getTotalCodewordsCount(version, errorCorrectionLevel);
-  var dataTotalCodewordsBits = (totalCodewords - ecTotalCodewords) * 8;
-
-  // Add a terminator.
-  // If the bit string is shorter than the total number of required bits,
-  // a terminator of up to four 0s must be added to the right side of the string.
-  // If the bit string is more than four bits shorter than the required number of bits,
-  // add four 0s to the end.
-  if (buffer.getLengthInBits() + 4 <= dataTotalCodewordsBits) {
-    buffer.put(0, 4);
-  }
-
-  // If the bit string is fewer than four bits shorter, add only the number of 0s that
-  // are needed to reach the required number of bits.
-
-  // After adding the terminator, if the number of bits in the string is not a multiple of 8,
-  // pad the string on the right with 0s to make the string's length a multiple of 8.
-  while (buffer.getLengthInBits() % 8 !== 0) {
-    buffer.putBit(0);
-  }
-
-  // Add pad bytes if the string is still shorter than the total number of required bits.
-  // Extend the buffer to fill the data capacity of the symbol corresponding to
-  // the Version and Error Correction Level by adding the Pad Codewords 11101100 (0xEC)
-  // and 00010001 (0x11) alternately.
-  var remainingByte = (dataTotalCodewordsBits - buffer.getLengthInBits()) / 8;
-  for (var i = 0; i < remainingByte; i++) {
-    buffer.put(i % 2 ? 0x11 : 0xEC, 8);
-  }
-
-  return createCodewords(buffer, version, errorCorrectionLevel)
-}
-
-/**
- * Encode input data with Reed-Solomon and return codewords with
- * relative error correction bits
- *
- * @param  {BitBuffer} bitBuffer            Data to encode
- * @param  {Number}    version              QR Code version
- * @param  {ErrorCorrectionLevel} errorCorrectionLevel Error correction level
- * @return {Buffer}                         Buffer containing encoded codewords
- */
-function createCodewords (bitBuffer, version, errorCorrectionLevel) {
-  // Total codewords for this QR code version (Data + Error correction)
-  var totalCodewords = Utils.getSymbolTotalCodewords(version);
-
-  // Total number of error correction codewords
-  var ecTotalCodewords = ECCode.getTotalCodewordsCount(version, errorCorrectionLevel);
-
-  // Total number of data codewords
-  var dataTotalCodewords = totalCodewords - ecTotalCodewords;
-
-  // Total number of blocks
-  var ecTotalBlocks = ECCode.getBlocksCount(version, errorCorrectionLevel);
-
-  // Calculate how many blocks each group should contain
-  var blocksInGroup2 = totalCodewords % ecTotalBlocks;
-  var blocksInGroup1 = ecTotalBlocks - blocksInGroup2;
-
-  var totalCodewordsInGroup1 = Math.floor(totalCodewords / ecTotalBlocks);
-
-  var dataCodewordsInGroup1 = Math.floor(dataTotalCodewords / ecTotalBlocks);
-  var dataCodewordsInGroup2 = dataCodewordsInGroup1 + 1;
-
-  // Number of EC codewords is the same for both groups
-  var ecCount = totalCodewordsInGroup1 - dataCodewordsInGroup1;
-
-  // Initialize a Reed-Solomon encoder with a generator polynomial of degree ecCount
-  var rs = new ReedSolomonEncoder(ecCount);
-
-  var offset = 0;
-  var dcData = new Array(ecTotalBlocks);
-  var ecData = new Array(ecTotalBlocks);
-  var maxDataSize = 0;
-  var buffer = new Buffer(bitBuffer.buffer);
-
-  // Divide the buffer into the required number of blocks
-  for (var b = 0; b < ecTotalBlocks; b++) {
-    var dataSize = b < blocksInGroup1 ? dataCodewordsInGroup1 : dataCodewordsInGroup2;
-
-    // extract a block of data from buffer
-    dcData[b] = buffer.slice(offset, offset + dataSize);
-
-    // Calculate EC codewords for this data block
-    ecData[b] = rs.encode(dcData[b]);
-
-    offset += dataSize;
-    maxDataSize = Math.max(maxDataSize, dataSize);
-  }
-
-  // Create final data
-  // Interleave the data and error correction codewords from each block
-  var data = new Buffer(totalCodewords);
-  var index = 0;
-  var i, r;
-
-  // Add data codewords
-  for (i = 0; i < maxDataSize; i++) {
-    for (r = 0; r < ecTotalBlocks; r++) {
-      if (i < dcData[r].length) {
-        data[index++] = dcData[r][i];
-      }
-    }
-  }
-
-  // Apped EC codewords
-  for (i = 0; i < ecCount; i++) {
-    for (r = 0; r < ecTotalBlocks; r++) {
-      data[index++] = ecData[r][i];
-    }
-  }
-
-  return data
-}
-
-/**
- * Build QR Code symbol
- *
- * @param  {String} data                 Input string
- * @param  {Number} version              QR Code version
- * @param  {ErrorCorretionLevel} errorCorrectionLevel Error level
- * @param  {MaskPattern} maskPattern     Mask pattern
- * @return {Object}                      Object containing symbol data
- */
-function createSymbol (data, version, errorCorrectionLevel, maskPattern) {
-  var segments;
-
-  if (isArray(data)) {
-    segments = Segments.fromArray(data);
-  } else if (typeof data === 'string') {
-    var estimatedVersion = version;
-
-    if (!estimatedVersion) {
-      var rawSegments = Segments.rawSplit(data);
-
-      // Estimate best version that can contain raw splitted segments
-      estimatedVersion = Version.getBestVersionForData(rawSegments,
-        errorCorrectionLevel);
-    }
-
-    // Build optimized segments
-    // If estimated version is undefined, try with the highest version
-    segments = Segments.fromString(data, estimatedVersion || 40);
-  } else {
-    throw new Error('Invalid data')
-  }
-
-  // Get the min version that can contain data
-  var bestVersion = Version.getBestVersionForData(segments,
-      errorCorrectionLevel);
-
-  // If no version is found, data cannot be stored
-  if (!bestVersion) {
-    throw new Error('The amount of data is too big to be stored in a QR Code')
-  }
-
-  // If not specified, use min version as default
-  if (!version) {
-    version = bestVersion;
-
-  // Check if the specified version can contain the data
-  } else if (version < bestVersion) {
-    throw new Error('\n' +
-      'The chosen QR Code version cannot contain this amount of data.\n' +
-      'Minimum version required to store current data is: ' + bestVersion + '.\n'
-    )
-  }
-
-  var dataBits = createData(version, errorCorrectionLevel, segments);
-
-  // Allocate matrix buffer
-  var moduleCount = Utils.getSymbolSize(version);
-  var modules = new BitMatrix(moduleCount);
-
-  // Add function modules
-  setupFinderPattern(modules, version);
-  setupTimingPattern(modules);
-  setupAlignmentPattern(modules, version);
-
-  // Add temporary dummy bits for format info just to set them as reserved.
-  // This is needed to prevent these bits from being masked by {@link MaskPattern.applyMask}
-  // since the masking operation must be performed only on the encoding region.
-  // These blocks will be replaced with correct values later in code.
-  setupFormatInfo(modules, errorCorrectionLevel, 0);
-
-  if (version >= 7) {
-    setupVersionInfo(modules, version);
-  }
-
-  // Add data codewords
-  setupData(modules, dataBits);
-
-  if (isNaN(maskPattern)) {
-    // Find best mask pattern
-    maskPattern = MaskPattern.getBestMask(modules,
-      setupFormatInfo.bind(null, modules, errorCorrectionLevel));
-  }
-
-  // Apply mask pattern
-  MaskPattern.applyMask(maskPattern, modules);
-
-  // Replace format info bits with correct values
-  setupFormatInfo(modules, errorCorrectionLevel, maskPattern);
-
-  return {
-    modules: modules,
-    version: version,
-    errorCorrectionLevel: errorCorrectionLevel,
-    maskPattern: maskPattern,
-    segments: segments
-  }
-}
-
-/**
- * QR Code
- *
- * @param {String | Array} data                 Input data
- * @param {Object} options                      Optional configurations
- * @param {Number} options.version              QR Code version
- * @param {String} options.errorCorrectionLevel Error correction level
- * @param {Function} options.toSJISFunc         Helper func to convert utf8 to sjis
- */
-exports.create = function create (data, options) {
-  if (typeof data === 'undefined' || data === '') {
-    throw new Error('No input text')
-  }
-
-  var errorCorrectionLevel = ECLevel.M;
-  var version;
-  var mask;
-
-  if (typeof options !== 'undefined') {
-    // Use higher error correction level as default
-    errorCorrectionLevel = ECLevel.from(options.errorCorrectionLevel, ECLevel.M);
-    version = Version.from(options.version);
-    mask = MaskPattern.from(options.maskPattern);
-
-    if (options.toSJISFunc) {
-      Utils.setToSJISFunction(options.toSJISFunc);
-    }
-  }
-
-  return createSymbol(data, version, errorCorrectionLevel, mask)
-};
-
-},{"../utils/buffer":27,"./alignment-pattern":1,"./bit-buffer":3,"./bit-matrix":4,"./error-correction-code":6,"./error-correction-level":7,"./finder-pattern":8,"./format-info":9,"./mask-pattern":12,"./mode":13,"./reed-solomon-encoder":17,"./segments":19,"./utils":20,"./version":22,"isarray":30}],17:[function(require,module,exports){
-var Buffer = require('../utils/buffer');
-var Polynomial = require('./polynomial');
-
-function ReedSolomonEncoder (degree) {
-  this.genPoly = undefined;
-  this.degree = degree;
-
-  if (this.degree) this.initialize(this.degree);
-}
-
-/**
- * Initialize the encoder.
- * The input param should correspond to the number of error correction codewords.
- *
- * @param  {Number} degree
- */
-ReedSolomonEncoder.prototype.initialize = function initialize (degree) {
-  // create an irreducible generator polynomial
-  this.degree = degree;
-  this.genPoly = Polynomial.generateECPolynomial(this.degree);
-};
-
-/**
- * Encodes a chunk of data
- *
- * @param  {Buffer} data Buffer containing input data
- * @return {Buffer}      Buffer containing encoded data
- */
-ReedSolomonEncoder.prototype.encode = function encode (data) {
-  if (!this.genPoly) {
-    throw new Error('Encoder not initialized')
-  }
-
-  // Calculate EC for this data block
-  // extends data size to data+genPoly size
-  var pad = new Buffer(this.degree);
-  pad.fill(0);
-  var paddedData = Buffer.concat([data, pad], data.length + this.degree);
-
-  // The error correction codewords are the remainder after dividing the data codewords
-  // by a generator polynomial
-  var remainder = Polynomial.mod(paddedData, this.genPoly);
-
-  // return EC data blocks (last n byte, where n is the degree of genPoly)
-  // If coefficients number in remainder are less than genPoly degree,
-  // pad with 0s to the left to reach the needed number of coefficients
-  var start = this.degree - remainder.length;
-  if (start > 0) {
-    var buff = new Buffer(this.degree);
-    buff.fill(0);
-    remainder.copy(buff, start);
-
-    return buff
-  }
-
-  return remainder
-};
-
-module.exports = ReedSolomonEncoder;
-
-},{"../utils/buffer":27,"./polynomial":15}],18:[function(require,module,exports){
-var numeric = '[0-9]+';
-var alphanumeric = '[A-Z $%*+\\-./:]+';
-var kanji = '(?:[u3000-u303F]|[u3040-u309F]|[u30A0-u30FF]|' +
-  '[uFF00-uFFEF]|[u4E00-u9FAF]|[u2605-u2606]|[u2190-u2195]|u203B|' +
-  '[u2010u2015u2018u2019u2025u2026u201Cu201Du2225u2260]|' +
-  '[u0391-u0451]|[u00A7u00A8u00B1u00B4u00D7u00F7])+';
-kanji = kanji.replace(/u/g, '\\u');
-
-var byte = '(?:(?![A-Z0-9 $%*+\\-./:]|' + kanji + ')(?:.|[\r\n]))+';
-
-exports.KANJI = new RegExp(kanji, 'g');
-exports.BYTE_KANJI = new RegExp('[^A-Z0-9 $%*+\\-./:]+', 'g');
-exports.BYTE = new RegExp(byte, 'g');
-exports.NUMERIC = new RegExp(numeric, 'g');
-exports.ALPHANUMERIC = new RegExp(alphanumeric, 'g');
-
-var TEST_KANJI = new RegExp('^' + kanji + '$');
-var TEST_NUMERIC = new RegExp('^' + numeric + '$');
-var TEST_ALPHANUMERIC = new RegExp('^[A-Z0-9 $%*+\\-./:]+$');
-
-exports.testKanji = function testKanji (str) {
-  return TEST_KANJI.test(str)
-};
-
-exports.testNumeric = function testNumeric (str) {
-  return TEST_NUMERIC.test(str)
-};
-
-exports.testAlphanumeric = function testAlphanumeric (str) {
-  return TEST_ALPHANUMERIC.test(str)
-};
-
-},{}],19:[function(require,module,exports){
-var Mode = require('./mode');
-var NumericData = require('./numeric-data');
-var AlphanumericData = require('./alphanumeric-data');
-var ByteData = require('./byte-data');
-var KanjiData = require('./kanji-data');
-var Regex = require('./regex');
-var Utils = require('./utils');
-var dijkstra = require('dijkstrajs');
-
-/**
- * Returns UTF8 byte length
- *
- * @param  {String} str Input string
- * @return {Number}     Number of byte
- */
-function getStringByteLength (str) {
-  return unescape(encodeURIComponent(str)).length
-}
-
-/**
- * Get a list of segments of the specified mode
- * from a string
- *
- * @param  {Mode}   mode Segment mode
- * @param  {String} str  String to process
- * @return {Array}       Array of object with segments data
- */
-function getSegments (regex, mode, str) {
-  var segments = [];
-  var result;
-
-  while ((result = regex.exec(str)) !== null) {
-    segments.push({
-      data: result[0],
-      index: result.index,
-      mode: mode,
-      length: result[0].length
-    });
-  }
-
-  return segments
-}
-
-/**
- * Extracts a series of segments with the appropriate
- * modes from a string
- *
- * @param  {String} dataStr Input string
- * @return {Array}          Array of object with segments data
- */
-function getSegmentsFromString (dataStr) {
-  var numSegs = getSegments(Regex.NUMERIC, Mode.NUMERIC, dataStr);
-  var alphaNumSegs = getSegments(Regex.ALPHANUMERIC, Mode.ALPHANUMERIC, dataStr);
-  var byteSegs;
-  var kanjiSegs;
-
-  if (Utils.isKanjiModeEnabled()) {
-    byteSegs = getSegments(Regex.BYTE, Mode.BYTE, dataStr);
-    kanjiSegs = getSegments(Regex.KANJI, Mode.KANJI, dataStr);
-  } else {
-    byteSegs = getSegments(Regex.BYTE_KANJI, Mode.BYTE, dataStr);
-    kanjiSegs = [];
-  }
-
-  var segs = numSegs.concat(alphaNumSegs, byteSegs, kanjiSegs);
-
-  return segs
-    .sort(function (s1, s2) {
-      return s1.index - s2.index
-    })
-    .map(function (obj) {
-      return {
-        data: obj.data,
-        mode: obj.mode,
-        length: obj.length
-      }
-    })
-}
-
-/**
- * Returns how many bits are needed to encode a string of
- * specified length with the specified mode
- *
- * @param  {Number} length String length
- * @param  {Mode} mode     Segment mode
- * @return {Number}        Bit length
- */
-function getSegmentBitsLength (length, mode) {
-  switch (mode) {
-    case Mode.NUMERIC:
-      return NumericData.getBitsLength(length)
-    case Mode.ALPHANUMERIC:
-      return AlphanumericData.getBitsLength(length)
-    case Mode.KANJI:
-      return KanjiData.getBitsLength(length)
-    case Mode.BYTE:
-      return ByteData.getBitsLength(length)
-  }
-}
-
-/**
- * Merges adjacent segments which have the same mode
- *
- * @param  {Array} segs Array of object with segments data
- * @return {Array}      Array of object with segments data
- */
-function mergeSegments (segs) {
-  return segs.reduce(function (acc, curr) {
-    var prevSeg = acc.length - 1 >= 0 ? acc[acc.length - 1] : null;
-    if (prevSeg && prevSeg.mode === curr.mode) {
-      acc[acc.length - 1].data += curr.data;
-      return acc
-    }
-
-    acc.push(curr);
-    return acc
-  }, [])
-}
-
-/**
- * Generates a list of all possible nodes combination which
- * will be used to build a segments graph.
- *
- * Nodes are divided by groups. Each group will contain a list of all the modes
- * in which is possible to encode the given text.
- *
- * For example the text '12345' can be encoded as Numeric, Alphanumeric or Byte.
- * The group for '12345' will contain then 3 objects, one for each
- * possible encoding mode.
- *
- * Each node represents a possible segment.
- *
- * @param  {Array} segs Array of object with segments data
- * @return {Array}      Array of object with segments data
- */
-function buildNodes (segs) {
-  var nodes = [];
-  for (var i = 0; i < segs.length; i++) {
-    var seg = segs[i];
-
-    switch (seg.mode) {
-      case Mode.NUMERIC:
-        nodes.push([seg,
-          { data: seg.data, mode: Mode.ALPHANUMERIC, length: seg.length },
-          { data: seg.data, mode: Mode.BYTE, length: seg.length }
-        ]);
-        break
-      case Mode.ALPHANUMERIC:
-        nodes.push([seg,
-          { data: seg.data, mode: Mode.BYTE, length: seg.length }
-        ]);
-        break
-      case Mode.KANJI:
-        nodes.push([seg,
-          { data: seg.data, mode: Mode.BYTE, length: getStringByteLength(seg.data) }
-        ]);
-        break
-      case Mode.BYTE:
-        nodes.push([
-          { data: seg.data, mode: Mode.BYTE, length: getStringByteLength(seg.data) }
-        ]);
-    }
-  }
-
-  return nodes
-}
-
-/**
- * Builds a graph from a list of nodes.
- * All segments in each node group will be connected with all the segments of
- * the next group and so on.
- *
- * At each connection will be assigned a weight depending on the
- * segment's byte length.
- *
- * @param  {Array} nodes    Array of object with segments data
- * @param  {Number} version QR Code version
- * @return {Object}         Graph of all possible segments
- */
-function buildGraph (nodes, version) {
-  var table = {};
-  var graph = {'start': {}};
-  var prevNodeIds = ['start'];
-
-  for (var i = 0; i < nodes.length; i++) {
-    var nodeGroup = nodes[i];
-    var currentNodeIds = [];
-
-    for (var j = 0; j < nodeGroup.length; j++) {
-      var node = nodeGroup[j];
-      var key = '' + i + j;
-
-      currentNodeIds.push(key);
-      table[key] = { node: node, lastCount: 0 };
-      graph[key] = {};
-
-      for (var n = 0; n < prevNodeIds.length; n++) {
-        var prevNodeId = prevNodeIds[n];
-
-        if (table[prevNodeId] && table[prevNodeId].node.mode === node.mode) {
-          graph[prevNodeId][key] =
-            getSegmentBitsLength(table[prevNodeId].lastCount + node.length, node.mode) -
-            getSegmentBitsLength(table[prevNodeId].lastCount, node.mode);
-
-          table[prevNodeId].lastCount += node.length;
-        } else {
-          if (table[prevNodeId]) table[prevNodeId].lastCount = node.length;
-
-          graph[prevNodeId][key] = getSegmentBitsLength(node.length, node.mode) +
-            4 + Mode.getCharCountIndicator(node.mode, version); // switch cost
-        }
-      }
-    }
-
-    prevNodeIds = currentNodeIds;
-  }
-
-  for (n = 0; n < prevNodeIds.length; n++) {
-    graph[prevNodeIds[n]]['end'] = 0;
-  }
-
-  return { map: graph, table: table }
-}
-
-/**
- * Builds a segment from a specified data and mode.
- * If a mode is not specified, the more suitable will be used.
- *
- * @param  {String} data             Input data
- * @param  {Mode | String} modesHint Data mode
- * @return {Segment}                 Segment
- */
-function buildSingleSegment (data, modesHint) {
-  var mode;
-  var bestMode = Mode.getBestModeForData(data);
-
-  mode = Mode.from(modesHint, bestMode);
-
-  // Make sure data can be encoded
-  if (mode !== Mode.BYTE && mode.bit < bestMode.bit) {
-    throw new Error('"' + data + '"' +
-      ' cannot be encoded with mode ' + Mode.toString(mode) +
-      '.\n Suggested mode is: ' + Mode.toString(bestMode))
-  }
-
-  // Use Mode.BYTE if Kanji support is disabled
-  if (mode === Mode.KANJI && !Utils.isKanjiModeEnabled()) {
-    mode = Mode.BYTE;
-  }
-
-  switch (mode) {
-    case Mode.NUMERIC:
-      return new NumericData(data)
-
-    case Mode.ALPHANUMERIC:
-      return new AlphanumericData(data)
-
-    case Mode.KANJI:
-      return new KanjiData(data)
-
-    case Mode.BYTE:
-      return new ByteData(data)
-  }
-}
-
-/**
- * Builds a list of segments from an array.
- * Array can contain Strings or Objects with segment's info.
- *
- * For each item which is a string, will be generated a segment with the given
- * string and the more appropriate encoding mode.
- *
- * For each item which is an object, will be generated a segment with the given
- * data and mode.
- * Objects must contain at least the property "data".
- * If property "mode" is not present, the more suitable mode will be used.
- *
- * @param  {Array} array Array of objects with segments data
- * @return {Array}       Array of Segments
- */
-exports.fromArray = function fromArray (array) {
-  return array.reduce(function (acc, seg) {
-    if (typeof seg === 'string') {
-      acc.push(buildSingleSegment(seg, null));
-    } else if (seg.data) {
-      acc.push(buildSingleSegment(seg.data, seg.mode));
-    }
-
-    return acc
-  }, [])
-};
-
-/**
- * Builds an optimized sequence of segments from a string,
- * which will produce the shortest possible bitstream.
- *
- * @param  {String} data    Input string
- * @param  {Number} version QR Code version
- * @return {Array}          Array of segments
- */
-exports.fromString = function fromString (data, version) {
-  var segs = getSegmentsFromString(data, Utils.isKanjiModeEnabled());
-
-  var nodes = buildNodes(segs);
-  var graph = buildGraph(nodes, version);
-  var path = dijkstra.find_path(graph.map, 'start', 'end');
-
-  var optimizedSegs = [];
-  for (var i = 1; i < path.length - 1; i++) {
-    optimizedSegs.push(graph.table[path[i]].node);
-  }
-
-  return exports.fromArray(mergeSegments(optimizedSegs))
-};
-
-/**
- * Splits a string in various segments with the modes which
- * best represent their content.
- * The produced segments are far from being optimized.
- * The output of this function is only used to estimate a QR Code version
- * which may contain the data.
- *
- * @param  {string} data Input string
- * @return {Array}       Array of segments
- */
-exports.rawSplit = function rawSplit (data) {
-  return exports.fromArray(
-    getSegmentsFromString(data, Utils.isKanjiModeEnabled())
-  )
-};
-
-},{"./alphanumeric-data":2,"./byte-data":5,"./kanji-data":11,"./mode":13,"./numeric-data":14,"./regex":18,"./utils":20,"dijkstrajs":29}],20:[function(require,module,exports){
-var toSJISFunction;
-var CODEWORDS_COUNT = [
-  0, // Not used
-  26, 44, 70, 100, 134, 172, 196, 242, 292, 346,
-  404, 466, 532, 581, 655, 733, 815, 901, 991, 1085,
-  1156, 1258, 1364, 1474, 1588, 1706, 1828, 1921, 2051, 2185,
-  2323, 2465, 2611, 2761, 2876, 3034, 3196, 3362, 3532, 3706
-];
-
-/**
- * Returns the QR Code size for the specified version
- *
- * @param  {Number} version QR Code version
- * @return {Number}         size of QR code
- */
-exports.getSymbolSize = function getSymbolSize (version) {
-  if (!version) throw new Error('"version" cannot be null or undefined')
-  if (version < 1 || version > 40) throw new Error('"version" should be in range from 1 to 40')
-  return version * 4 + 17
-};
-
-/**
- * Returns the total number of codewords used to store data and EC information.
- *
- * @param  {Number} version QR Code version
- * @return {Number}         Data length in bits
- */
-exports.getSymbolTotalCodewords = function getSymbolTotalCodewords (version) {
-  return CODEWORDS_COUNT[version]
-};
-
-/**
- * Encode data with Bose-Chaudhuri-Hocquenghem
- *
- * @param  {Number} data Value to encode
- * @return {Number}      Encoded value
- */
-exports.getBCHDigit = function (data) {
-  var digit = 0;
-
-  while (data !== 0) {
-    digit++;
-    data >>>= 1;
-  }
-
-  return digit
-};
-
-exports.setToSJISFunction = function setToSJISFunction (f) {
-  if (typeof f !== 'function') {
-    throw new Error('"toSJISFunc" is not a valid function.')
-  }
-
-  toSJISFunction = f;
-};
-
-exports.isKanjiModeEnabled = function () {
-  return typeof toSJISFunction !== 'undefined'
-};
-
-exports.toSJIS = function toSJIS (kanji) {
-  return toSJISFunction(kanji)
-};
-
-},{}],21:[function(require,module,exports){
-/**
- * Check if QR Code version is valid
- *
- * @param  {Number}  version QR Code version
- * @return {Boolean}         true if valid version, false otherwise
- */
-exports.isValid = function isValid (version) {
-  return !isNaN(version) && version >= 1 && version <= 40
-};
-
-},{}],22:[function(require,module,exports){
-var Utils = require('./utils');
-var ECCode = require('./error-correction-code');
-var ECLevel = require('./error-correction-level');
-var Mode = require('./mode');
-var VersionCheck = require('./version-check');
-var isArray = require('isarray');
-
-// Generator polynomial used to encode version information
-var G18 = (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0);
-var G18_BCH = Utils.getBCHDigit(G18);
-
-function getBestVersionForDataLength (mode, length, errorCorrectionLevel) {
-  for (var currentVersion = 1; currentVersion <= 40; currentVersion++) {
-    if (length <= exports.getCapacity(currentVersion, errorCorrectionLevel, mode)) {
-      return currentVersion
-    }
-  }
-
-  return undefined
-}
-
-function getReservedBitsCount (mode, version) {
-  // Character count indicator + mode indicator bits
-  return Mode.getCharCountIndicator(mode, version) + 4
-}
-
-function getTotalBitsFromDataArray (segments, version) {
-  var totalBits = 0;
-
-  segments.forEach(function (data) {
-    var reservedBits = getReservedBitsCount(data.mode, version);
-    totalBits += reservedBits + data.getBitsLength();
-  });
-
-  return totalBits
-}
-
-function getBestVersionForMixedData (segments, errorCorrectionLevel) {
-  for (var currentVersion = 1; currentVersion <= 40; currentVersion++) {
-    var length = getTotalBitsFromDataArray(segments, currentVersion);
-    if (length <= exports.getCapacity(currentVersion, errorCorrectionLevel, Mode.MIXED)) {
-      return currentVersion
-    }
-  }
-
-  return undefined
-}
-
-/**
- * Returns version number from a value.
- * If value is not a valid version, returns defaultValue
- *
- * @param  {Number|String} value        QR Code version
- * @param  {Number}        defaultValue Fallback value
- * @return {Number}                     QR Code version number
- */
-exports.from = function from (value, defaultValue) {
-  if (VersionCheck.isValid(value)) {
-    return parseInt(value, 10)
-  }
-
-  return defaultValue
-};
-
-/**
- * Returns how much data can be stored with the specified QR code version
- * and error correction level
- *
- * @param  {Number} version              QR Code version (1-40)
- * @param  {Number} errorCorrectionLevel Error correction level
- * @param  {Mode}   mode                 Data mode
- * @return {Number}                      Quantity of storable data
- */
-exports.getCapacity = function getCapacity (version, errorCorrectionLevel, mode) {
-  if (!VersionCheck.isValid(version)) {
-    throw new Error('Invalid QR Code version')
-  }
-
-  // Use Byte mode as default
-  if (typeof mode === 'undefined') mode = Mode.BYTE;
-
-  // Total codewords for this QR code version (Data + Error correction)
-  var totalCodewords = Utils.getSymbolTotalCodewords(version);
-
-  // Total number of error correction codewords
-  var ecTotalCodewords = ECCode.getTotalCodewordsCount(version, errorCorrectionLevel);
-
-  // Total number of data codewords
-  var dataTotalCodewordsBits = (totalCodewords - ecTotalCodewords) * 8;
-
-  if (mode === Mode.MIXED) return dataTotalCodewordsBits
-
-  var usableBits = dataTotalCodewordsBits - getReservedBitsCount(mode, version);
-
-  // Return max number of storable codewords
-  switch (mode) {
-    case Mode.NUMERIC:
-      return Math.floor((usableBits / 10) * 3)
-
-    case Mode.ALPHANUMERIC:
-      return Math.floor((usableBits / 11) * 2)
-
-    case Mode.KANJI:
-      return Math.floor(usableBits / 13)
-
-    case Mode.BYTE:
-    default:
-      return Math.floor(usableBits / 8)
-  }
-};
-
-/**
- * Returns the minimum version needed to contain the amount of data
- *
- * @param  {Segment} data                    Segment of data
- * @param  {Number} [errorCorrectionLevel=H] Error correction level
- * @param  {Mode} mode                       Data mode
- * @return {Number}                          QR Code version
- */
-exports.getBestVersionForData = function getBestVersionForData (data, errorCorrectionLevel) {
-  var seg;
-
-  var ecl = ECLevel.from(errorCorrectionLevel, ECLevel.M);
-
-  if (isArray(data)) {
-    if (data.length > 1) {
-      return getBestVersionForMixedData(data, ecl)
-    }
-
-    if (data.length === 0) {
-      return 1
-    }
-
-    seg = data[0];
-  } else {
-    seg = data;
-  }
-
-  return getBestVersionForDataLength(seg.mode, seg.getLength(), ecl)
-};
-
-/**
- * Returns version information with relative error correction bits
- *
- * The version information is included in QR Code symbols of version 7 or larger.
- * It consists of an 18-bit sequence containing 6 data bits,
- * with 12 error correction bits calculated using the (18, 6) Golay code.
- *
- * @param  {Number} version QR Code version
- * @return {Number}         Encoded version info bits
- */
-exports.getEncodedBits = function getEncodedBits (version) {
-  if (!VersionCheck.isValid(version) || version < 7) {
-    throw new Error('Invalid QR Code version')
-  }
-
-  var d = version << 12;
-
-  while (Utils.getBCHDigit(d) - G18_BCH >= 0) {
-    d ^= (G18 << (Utils.getBCHDigit(d) - G18_BCH));
-  }
-
-  return (version << 12) | d
-};
-
-},{"./error-correction-code":6,"./error-correction-level":7,"./mode":13,"./utils":20,"./version-check":21,"isarray":30}],23:[function(require,module,exports){
-var canPromise = require('can-promise');
-var QRCode = require('./core/qrcode');
-var CanvasRenderer = require('./renderer/canvas');
-var SvgRenderer = require('./renderer/svg-tag.js');
-
-function renderCanvas (renderFunc, canvas, text, opts, cb) {
-  var args = [].slice.call(arguments, 1);
-  var argsNum = args.length;
-  var isLastArgCb = typeof args[argsNum - 1] === 'function';
-
-  if (!isLastArgCb && !canPromise()) {
-    throw new Error('Callback required as last argument')
-  }
-
-  if (isLastArgCb) {
-    if (argsNum < 2) {
-      throw new Error('Too few arguments provided')
-    }
-
-    if (argsNum === 2) {
-      cb = text;
-      text = canvas;
-      canvas = opts = undefined;
-    } else if (argsNum === 3) {
-      if (canvas.getContext && typeof cb === 'undefined') {
-        cb = opts;
-        opts = undefined;
-      } else {
-        cb = opts;
-        opts = text;
-        text = canvas;
-        canvas = undefined;
-      }
-    }
-  } else {
-    if (argsNum < 1) {
-      throw new Error('Too few arguments provided')
-    }
-
-    if (argsNum === 1) {
-      text = canvas;
-      canvas = opts = undefined;
-    } else if (argsNum === 2 && !canvas.getContext) {
-      opts = text;
-      text = canvas;
-      canvas = undefined;
-    }
-
-    return new Promise(function (resolve, reject) {
-      try {
-        var data = QRCode.create(text, opts);
-        resolve(renderFunc(data, canvas, opts));
-      } catch (e) {
-        reject(e);
-      }
-    })
-  }
-
-  try {
-    var data = QRCode.create(text, opts);
-    cb(null, renderFunc(data, canvas, opts));
-  } catch (e) {
-    cb(e);
-  }
-}
-
-exports.create = QRCode.create;
-exports.toCanvas = renderCanvas.bind(null, CanvasRenderer.render);
-exports.toDataURL = renderCanvas.bind(null, CanvasRenderer.renderToDataURL);
-
-// only svg for now.
-exports.toString = renderCanvas.bind(null, function (data, _, opts) {
-  return SvgRenderer.render(data, opts)
-});
-
-},{"./core/qrcode":16,"./renderer/canvas":24,"./renderer/svg-tag.js":25,"can-promise":28}],24:[function(require,module,exports){
-var Utils = require('./utils');
-
-function clearCanvas (ctx, canvas, size) {
-  ctx.clearRect(0, 0, canvas.width, canvas.height);
-
-  if (!canvas.style) canvas.style = {};
-  canvas.height = size;
-  canvas.width = size;
-  canvas.style.height = size + 'px';
-  canvas.style.width = size + 'px';
-}
-
-function getCanvasElement () {
-  try {
-    return document.createElement('canvas')
-  } catch (e) {
-    throw new Error('You need to specify a canvas element')
-  }
-}
-
-exports.render = function render (qrData, canvas, options) {
-  var opts = options;
-  var canvasEl = canvas;
-
-  if (typeof opts === 'undefined' && (!canvas || !canvas.getContext)) {
-    opts = canvas;
-    canvas = undefined;
-  }
-
-  if (!canvas) {
-    canvasEl = getCanvasElement();
-  }
-
-  opts = Utils.getOptions(opts);
-  var size = Utils.getImageWidth(qrData.modules.size, opts);
-
-  var ctx = canvasEl.getContext('2d');
-  var image = ctx.createImageData(size, size);
-  Utils.qrToImageData(image.data, qrData, opts);
-
-  clearCanvas(ctx, canvasEl, size);
-  ctx.putImageData(image, 0, 0);
-
-  return canvasEl
-};
-
-exports.renderToDataURL = function renderToDataURL (qrData, canvas, options) {
-  var opts = options;
-
-  if (typeof opts === 'undefined' && (!canvas || !canvas.getContext)) {
-    opts = canvas;
-    canvas = undefined;
-  }
-
-  if (!opts) opts = {};
-
-  var canvasEl = exports.render(qrData, canvas, opts);
-
-  var type = opts.type || 'image/png';
-  var rendererOpts = opts.rendererOpts || {};
-
-  return canvasEl.toDataURL(type, rendererOpts.quality)
-};
-
-},{"./utils":26}],25:[function(require,module,exports){
-var Utils = require('./utils');
-
-function getColorAttrib (color, attrib) {
-  var alpha = color.a / 255;
-  var str = attrib + '="' + color.hex + '"';
-
-  return alpha < 1
-    ? str + ' ' + attrib + '-opacity="' + alpha.toFixed(2).slice(1) + '"'
-    : str
-}
-
-function svgCmd (cmd, x, y) {
-  var str = cmd + x;
-  if (typeof y !== 'undefined') str += ' ' + y;
-
-  return str
-}
-
-function qrToPath (data, size, margin) {
-  var path = '';
-  var moveBy = 0;
-  var newRow = false;
-  var lineLength = 0;
-
-  for (var i = 0; i < data.length; i++) {
-    var col = Math.floor(i % size);
-    var row = Math.floor(i / size);
-
-    if (!col && !newRow) newRow = true;
-
-    if (data[i]) {
-      lineLength++;
-
-      if (!(i > 0 && col > 0 && data[i - 1])) {
-        path += newRow
-          ? svgCmd('M', col + margin, 0.5 + row + margin)
-          : svgCmd('m', moveBy, 0);
-
-        moveBy = 0;
-        newRow = false;
-      }
-
-      if (!(col + 1 < size && data[i + 1])) {
-        path += svgCmd('h', lineLength);
-        lineLength = 0;
-      }
-    } else {
-      moveBy++;
-    }
-  }
-
-  return path
-}
-
-exports.render = function render (qrData, options, cb) {
-  var opts = Utils.getOptions(options);
-  var size = qrData.modules.size;
-  var data = qrData.modules.data;
-  var qrcodesize = size + opts.margin * 2;
-
-  var bg = !opts.color.light.a
-    ? ''
-    : '<path ' + getColorAttrib(opts.color.light, 'fill') +
-      ' d="M0 0h' + qrcodesize + 'v' + qrcodesize + 'H0z"/>';
-
-  var path =
-    '<path ' + getColorAttrib(opts.color.dark, 'stroke') +
-    ' d="' + qrToPath(data, size, opts.margin) + '"/>';
-
-  var viewBox = 'viewBox="' + '0 0 ' + qrcodesize + ' ' + qrcodesize + '"';
-
-  var width = !opts.width ? '' : 'width="' + opts.width + '" height="' + opts.width + '" ';
-
-  var svgTag = '<svg xmlns="http://www.w3.org/2000/svg" ' + width + viewBox + ' shape-rendering="crispEdges">' + bg + path + '</svg>\n';
-
-  if (typeof cb === 'function') {
-    cb(null, svgTag);
-  }
-
-  return svgTag
-};
-
-},{"./utils":26}],26:[function(require,module,exports){
-function hex2rgba (hex) {
-  if (typeof hex !== 'string') {
-    throw new Error('Color should be defined as hex string')
-  }
-
-  var hexCode = hex.slice().replace('#', '').split('');
-  if (hexCode.length < 3 || hexCode.length === 5 || hexCode.length > 8) {
-    throw new Error('Invalid hex color: ' + hex)
-  }
-
-  // Convert from short to long form (fff -> ffffff)
-  if (hexCode.length === 3 || hexCode.length === 4) {
-    hexCode = Array.prototype.concat.apply([], hexCode.map(function (c) {
-      return [c, c]
-    }));
-  }
-
-  // Add default alpha value
-  if (hexCode.length === 6) hexCode.push('F', 'F');
-
-  var hexValue = parseInt(hexCode.join(''), 16);
-
-  return {
-    r: (hexValue >> 24) & 255,
-    g: (hexValue >> 16) & 255,
-    b: (hexValue >> 8) & 255,
-    a: hexValue & 255,
-    hex: '#' + hexCode.slice(0, 6).join('')
-  }
-}
-
-exports.getOptions = function getOptions (options) {
-  if (!options) options = {};
-  if (!options.color) options.color = {};
-
-  var margin = typeof options.margin === 'undefined' ||
-    options.margin === null ||
-    options.margin < 0 ? 4 : options.margin;
-
-  var width = options.width && options.width >= 21 ? options.width : undefined;
-  var scale = options.scale || 4;
-
-  return {
-    width: width,
-    scale: width ? 4 : scale,
-    margin: margin,
-    color: {
-      dark: hex2rgba(options.color.dark || '#000000ff'),
-      light: hex2rgba(options.color.light || '#ffffffff')
-    },
-    type: options.type,
-    rendererOpts: options.rendererOpts || {}
-  }
-};
-
-exports.getScale = function getScale (qrSize, opts) {
-  return opts.width && opts.width >= qrSize + opts.margin * 2
-    ? opts.width / (qrSize + opts.margin * 2)
-    : opts.scale
-};
-
-exports.getImageWidth = function getImageWidth (qrSize, opts) {
-  var scale = exports.getScale(qrSize, opts);
-  return Math.floor((qrSize + opts.margin * 2) * scale)
-};
-
-exports.qrToImageData = function qrToImageData (imgData, qr, opts) {
-  var size = qr.modules.size;
-  var data = qr.modules.data;
-  var scale = exports.getScale(size, opts);
-  var symbolSize = Math.floor((size + opts.margin * 2) * scale);
-  var scaledMargin = opts.margin * scale;
-  var palette = [opts.color.light, opts.color.dark];
-
-  for (var i = 0; i < symbolSize; i++) {
-    for (var j = 0; j < symbolSize; j++) {
-      var posDst = (i * symbolSize + j) * 4;
-      var pxColor = opts.color.light;
-
-      if (i >= scaledMargin && j >= scaledMargin &&
-        i < symbolSize - scaledMargin && j < symbolSize - scaledMargin) {
-        var iSrc = Math.floor((i - scaledMargin) / scale);
-        var jSrc = Math.floor((j - scaledMargin) / scale);
-        pxColor = palette[data[iSrc * size + jSrc] ? 1 : 0];
-      }
-
-      imgData[posDst++] = pxColor.r;
-      imgData[posDst++] = pxColor.g;
-      imgData[posDst++] = pxColor.b;
-      imgData[posDst] = pxColor.a;
-    }
-  }
-};
-
-},{}],27:[function(require,module,exports){
-
-var isArray = require('isarray');
-
-function typedArraySupport () {
-  // Can typed array instances be augmented?
-  try {
-    var arr = new Uint8Array(1);
-    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }};
-    return arr.foo() === 42
-  } catch (e) {
-    return false
-  }
-}
-
-Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport();
-
-var K_MAX_LENGTH = Buffer.TYPED_ARRAY_SUPPORT
-    ? 0x7fffffff
-    : 0x3fffffff;
-
-function Buffer (arg, offset, length) {
-  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
-    return new Buffer(arg, offset, length)
-  }
-
-  if (typeof arg === 'number') {
-    return allocUnsafe(this, arg)
-  }
-
-  return from(this, arg, offset, length)
-}
-
-if (Buffer.TYPED_ARRAY_SUPPORT) {
-  Buffer.prototype.__proto__ = Uint8Array.prototype;
-  Buffer.__proto__ = Uint8Array;
-
-  // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
-  if (typeof Symbol !== 'undefined' && Symbol.species &&
-      Buffer[Symbol.species] === Buffer) {
-    Object.defineProperty(Buffer, Symbol.species, {
-      value: null,
-      configurable: true,
-      enumerable: false,
-      writable: false
-    });
-  }
-}
-
-function checked (length) {
-  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
-  // length is NaN (which is otherwise coerced to zero.)
-  if (length >= K_MAX_LENGTH) {
-    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
-                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
-  }
-  return length | 0
-}
-
-function isnan (val) {
-  return val !== val // eslint-disable-line no-self-compare
-}
-
-function createBuffer (that, length) {
-  var buf;
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    buf = new Uint8Array(length);
-    buf.__proto__ = Buffer.prototype;
-  } else {
-    // Fallback: Return an object instance of the Buffer class
-    buf = that;
-    if (buf === null) {
-      buf = new Buffer(length);
-    }
-    buf.length = length;
-  }
-
-  return buf
-}
-
-function allocUnsafe (that, size) {
-  var buf = createBuffer(that, size < 0 ? 0 : checked(size) | 0);
-
-  if (!Buffer.TYPED_ARRAY_SUPPORT) {
-    for (var i = 0; i < size; ++i) {
-      buf[i] = 0;
-    }
-  }
-
-  return buf
-}
-
-function fromString (that, string) {
-  var length = byteLength(string) | 0;
-  var buf = createBuffer(that, length);
-
-  var actual = buf.write(string);
-
-  if (actual !== length) {
-    // Writing a hex string, for example, that contains invalid characters will
-    // cause everything after the first invalid character to be ignored. (e.g.
-    // 'abxxcd' will be treated as 'ab')
-    buf = buf.slice(0, actual);
-  }
-
-  return buf
-}
-
-function fromArrayLike (that, array) {
-  var length = array.length < 0 ? 0 : checked(array.length) | 0;
-  var buf = createBuffer(that, length);
-  for (var i = 0; i < length; i += 1) {
-    buf[i] = array[i] & 255;
-  }
-  return buf
-}
-
-function fromArrayBuffer (that, array, byteOffset, length) {
-  if (byteOffset < 0 || array.byteLength < byteOffset) {
-    throw new RangeError('\'offset\' is out of bounds')
-  }
-
-  if (array.byteLength < byteOffset + (length || 0)) {
-    throw new RangeError('\'length\' is out of bounds')
-  }
-
-  var buf;
-  if (byteOffset === undefined && length === undefined) {
-    buf = new Uint8Array(array);
-  } else if (length === undefined) {
-    buf = new Uint8Array(array, byteOffset);
-  } else {
-    buf = new Uint8Array(array, byteOffset, length);
-  }
-
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    // Return an augmented `Uint8Array` instance, for best performance
-    buf.__proto__ = Buffer.prototype;
-  } else {
-    // Fallback: Return an object instance of the Buffer class
-    buf = fromArrayLike(that, buf);
-  }
-
-  return buf
-}
-
-function fromObject (that, obj) {
-  if (Buffer.isBuffer(obj)) {
-    var len = checked(obj.length) | 0;
-    var buf = createBuffer(that, len);
-
-    if (buf.length === 0) {
-      return buf
-    }
-
-    obj.copy(buf, 0, 0, len);
-    return buf
-  }
-
-  if (obj) {
-    if ((typeof ArrayBuffer !== 'undefined' &&
-        obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
-      if (typeof obj.length !== 'number' || isnan(obj.length)) {
-        return createBuffer(that, 0)
-      }
-      return fromArrayLike(that, obj)
-    }
-
-    if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
-      return fromArrayLike(that, obj.data)
-    }
-  }
-
-  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
-}
-
-function utf8ToBytes (string, units) {
-  units = units || Infinity;
-  var codePoint;
-  var length = string.length;
-  var leadSurrogate = null;
-  var bytes = [];
-
-  for (var i = 0; i < length; ++i) {
-    codePoint = string.charCodeAt(i);
-
-    // is surrogate component
-    if (codePoint > 0xD7FF && codePoint < 0xE000) {
-      // last char was a lead
-      if (!leadSurrogate) {
-        // no lead yet
-        if (codePoint > 0xDBFF) {
-          // unexpected trail
-          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
-          continue
-        } else if (i + 1 === length) {
-          // unpaired lead
-          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
-          continue
-        }
-
-        // valid lead
-        leadSurrogate = codePoint;
-
-        continue
-      }
-
-      // 2 leads in a row
-      if (codePoint < 0xDC00) {
-        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
-        leadSurrogate = codePoint;
-        continue
-      }
-
-      // valid surrogate pair
-      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000;
-    } else if (leadSurrogate) {
-      // valid bmp char, but last char was a lead
-      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
-    }
-
-    leadSurrogate = null;
-
-    // encode utf8
-    if (codePoint < 0x80) {
-      if ((units -= 1) < 0) break
-      bytes.push(codePoint);
-    } else if (codePoint < 0x800) {
-      if ((units -= 2) < 0) break
-      bytes.push(
-        codePoint >> 0x6 | 0xC0,
-        codePoint & 0x3F | 0x80
-      );
-    } else if (codePoint < 0x10000) {
-      if ((units -= 3) < 0) break
-      bytes.push(
-        codePoint >> 0xC | 0xE0,
-        codePoint >> 0x6 & 0x3F | 0x80,
-        codePoint & 0x3F | 0x80
-      );
-    } else if (codePoint < 0x110000) {
-      if ((units -= 4) < 0) break
-      bytes.push(
-        codePoint >> 0x12 | 0xF0,
-        codePoint >> 0xC & 0x3F | 0x80,
-        codePoint >> 0x6 & 0x3F | 0x80,
-        codePoint & 0x3F | 0x80
-      );
-    } else {
-      throw new Error('Invalid code point')
-    }
-  }
-
-  return bytes
-}
-
-function byteLength (string) {
-  if (Buffer.isBuffer(string)) {
-    return string.length
-  }
-  if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
-      (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
-    return string.byteLength
-  }
-  if (typeof string !== 'string') {
-    string = '' + string;
-  }
-
-  var len = string.length;
-  if (len === 0) return 0
-
-  return utf8ToBytes(string).length
-}
-
-function blitBuffer (src, dst, offset, length) {
-  for (var i = 0; i < length; ++i) {
-    if ((i + offset >= dst.length) || (i >= src.length)) break
-    dst[i + offset] = src[i];
-  }
-  return i
-}
-
-function utf8Write (buf, string, offset, length) {
-  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
-}
-
-function from (that, value, offset, length) {
-  if (typeof value === 'number') {
-    throw new TypeError('"value" argument must not be a number')
-  }
-
-  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
-    return fromArrayBuffer(that, value, offset, length)
-  }
-
-  if (typeof value === 'string') {
-    return fromString(that, value, offset)
-  }
-
-  return fromObject(that, value)
-}
-
-Buffer.prototype.write = function write (string, offset, length) {
-  // Buffer#write(string)
-  if (offset === undefined) {
-    length = this.length;
-    offset = 0;
-  // Buffer#write(string, encoding)
-  } else if (length === undefined && typeof offset === 'string') {
-    length = this.length;
-    offset = 0;
-  // Buffer#write(string, offset[, length])
-  } else if (isFinite(offset)) {
-    offset = offset | 0;
-    if (isFinite(length)) {
-      length = length | 0;
-    } else {
-      length = undefined;
-    }
-  }
-
-  var remaining = this.length - offset;
-  if (length === undefined || length > remaining) length = remaining;
-
-  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
-    throw new RangeError('Attempt to write outside buffer bounds')
-  }
-
-  return utf8Write(this, string, offset, length)
-};
-
-Buffer.prototype.slice = function slice (start, end) {
-  var len = this.length;
-  start = ~~start;
-  end = end === undefined ? len : ~~end;
-
-  if (start < 0) {
-    start += len;
-    if (start < 0) start = 0;
-  } else if (start > len) {
-    start = len;
-  }
-
-  if (end < 0) {
-    end += len;
-    if (end < 0) end = 0;
-  } else if (end > len) {
-    end = len;
-  }
-
-  if (end < start) end = start;
-
-  var newBuf;
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    newBuf = this.subarray(start, end);
-    // Return an augmented `Uint8Array` instance
-    newBuf.__proto__ = Buffer.prototype;
-  } else {
-    var sliceLen = end - start;
-    newBuf = new Buffer(sliceLen, undefined);
-    for (var i = 0; i < sliceLen; ++i) {
-      newBuf[i] = this[i + start];
-    }
-  }
-
-  return newBuf
-};
-
-Buffer.prototype.copy = function copy (target, targetStart, start, end) {
-  if (!start) start = 0;
-  if (!end && end !== 0) end = this.length;
-  if (targetStart >= target.length) targetStart = target.length;
-  if (!targetStart) targetStart = 0;
-  if (end > 0 && end < start) end = start;
-
-  // Copy 0 bytes; we're done
-  if (end === start) return 0
-  if (target.length === 0 || this.length === 0) return 0
-
-  // Fatal error conditions
-  if (targetStart < 0) {
-    throw new RangeError('targetStart out of bounds')
-  }
-  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
-  if (end < 0) throw new RangeError('sourceEnd out of bounds')
-
-  // Are we oob?
-  if (end > this.length) end = this.length;
-  if (target.length - targetStart < end - start) {
-    end = target.length - targetStart + start;
-  }
-
-  var len = end - start;
-  var i;
-
-  if (this === target && start < targetStart && targetStart < end) {
-    // descending copy from end
-    for (i = len - 1; i >= 0; --i) {
-      target[i + targetStart] = this[i + start];
-    }
-  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
-    // ascending copy from start
-    for (i = 0; i < len; ++i) {
-      target[i + targetStart] = this[i + start];
-    }
-  } else {
-    Uint8Array.prototype.set.call(
-      target,
-      this.subarray(start, start + len),
-      targetStart
-    );
-  }
-
-  return len
-};
-
-Buffer.prototype.fill = function fill (val, start, end) {
-  // Handle string cases:
-  if (typeof val === 'string') {
-    if (typeof start === 'string') {
-      start = 0;
-      end = this.length;
-    } else if (typeof end === 'string') {
-      end = this.length;
-    }
-    if (val.length === 1) {
-      var code = val.charCodeAt(0);
-      if (code < 256) {
-        val = code;
-      }
-    }
-  } else if (typeof val === 'number') {
-    val = val & 255;
-  }
-
-  // Invalid ranges are not set to a default, so can range check early.
-  if (start < 0 || this.length < start || this.length < end) {
-    throw new RangeError('Out of range index')
-  }
-
-  if (end <= start) {
-    return this
-  }
-
-  start = start >>> 0;
-  end = end === undefined ? this.length : end >>> 0;
-
-  if (!val) val = 0;
-
-  var i;
-  if (typeof val === 'number') {
-    for (i = start; i < end; ++i) {
-      this[i] = val;
-    }
-  } else {
-    var bytes = Buffer.isBuffer(val)
-      ? val
-      : new Buffer(val);
-    var len = bytes.length;
-    for (i = 0; i < end - start; ++i) {
-      this[i + start] = bytes[i % len];
-    }
-  }
-
-  return this
-};
-
-Buffer.concat = function concat (list, length) {
-  if (!isArray(list)) {
-    throw new TypeError('"list" argument must be an Array of Buffers')
-  }
-
-  if (list.length === 0) {
-    return createBuffer(null, 0)
-  }
-
-  var i;
-  if (length === undefined) {
-    length = 0;
-    for (i = 0; i < list.length; ++i) {
-      length += list[i].length;
-    }
-  }
-
-  var buffer = allocUnsafe(null, length);
-  var pos = 0;
-  for (i = 0; i < list.length; ++i) {
-    var buf = list[i];
-    if (!Buffer.isBuffer(buf)) {
-      throw new TypeError('"list" argument must be an Array of Buffers')
-    }
-    buf.copy(buffer, pos);
-    pos += buf.length;
-  }
-  return buffer
-};
-
-Buffer.byteLength = byteLength;
-
-Buffer.prototype._isBuffer = true;
-Buffer.isBuffer = function isBuffer (b) {
-  return !!(b != null && b._isBuffer)
-};
-
-module.exports = Buffer;
-
-},{"isarray":30}],28:[function(require,module,exports){
-
-var G = require('window-or-global');
-
-module.exports = function() {
-  return (
-    typeof G.Promise === 'function' &&
-    typeof G.Promise.prototype.then === 'function'
-  )
-};
-
-},{"window-or-global":31}],29:[function(require,module,exports){
-
-/******************************************************************************
- * Created 2008-08-19.
- *
- * Dijkstra path-finding functions. Adapted from the Dijkstar Python project.
- *
- * Copyright (C) 2008
- *   Wyatt Baldwin <self@wyattbaldwin.com>
- *   All rights reserved
- *
- * Licensed under the MIT license.
- *
- *   http://www.opensource.org/licenses/mit-license.php
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *****************************************************************************/
-var dijkstra = {
-  single_source_shortest_paths: function(graph, s, d) {
-    // Predecessor map for each node that has been encountered.
-    // node ID => predecessor node ID
-    var predecessors = {};
-
-    // Costs of shortest paths from s to all nodes encountered.
-    // node ID => cost
-    var costs = {};
-    costs[s] = 0;
-
-    // Costs of shortest paths from s to all nodes encountered; differs from
-    // `costs` in that it provides easy access to the node that currently has
-    // the known shortest path from s.
-    // XXX: Do we actually need both `costs` and `open`?
-    var open = dijkstra.PriorityQueue.make();
-    open.push(s, 0);
-
-    var closest,
-        u, v,
-        cost_of_s_to_u,
-        adjacent_nodes,
-        cost_of_e,
-        cost_of_s_to_u_plus_cost_of_e,
-        cost_of_s_to_v,
-        first_visit;
-    while (!open.empty()) {
-      // In the nodes remaining in graph that have a known cost from s,
-      // find the node, u, that currently has the shortest path from s.
-      closest = open.pop();
-      u = closest.value;
-      cost_of_s_to_u = closest.cost;
-
-      // Get nodes adjacent to u...
-      adjacent_nodes = graph[u] || {};
-
-      // ...and explore the edges that connect u to those nodes, updating
-      // the cost of the shortest paths to any or all of those nodes as
-      // necessary. v is the node across the current edge from u.
-      for (v in adjacent_nodes) {
-        if (adjacent_nodes.hasOwnProperty(v)) {
-          // Get the cost of the edge running from u to v.
-          cost_of_e = adjacent_nodes[v];
-
-          // Cost of s to u plus the cost of u to v across e--this is *a*
-          // cost from s to v that may or may not be less than the current
-          // known cost to v.
-          cost_of_s_to_u_plus_cost_of_e = cost_of_s_to_u + cost_of_e;
-
-          // If we haven't visited v yet OR if the current known cost from s to
-          // v is greater than the new cost we just found (cost of s to u plus
-          // cost of u to v across e), update v's cost in the cost list and
-          // update v's predecessor in the predecessor list (it's now u).
-          cost_of_s_to_v = costs[v];
-          first_visit = (typeof costs[v] === 'undefined');
-          if (first_visit || cost_of_s_to_v > cost_of_s_to_u_plus_cost_of_e) {
-            costs[v] = cost_of_s_to_u_plus_cost_of_e;
-            open.push(v, cost_of_s_to_u_plus_cost_of_e);
-            predecessors[v] = u;
-          }
-        }
-      }
-    }
-
-    if (typeof d !== 'undefined' && typeof costs[d] === 'undefined') {
-      var msg = ['Could not find a path from ', s, ' to ', d, '.'].join('');
-      throw new Error(msg);
-    }
-
-    return predecessors;
-  },
-
-  extract_shortest_path_from_predecessor_list: function(predecessors, d) {
-    var nodes = [];
-    var u = d;
-    var predecessor;
-    while (u) {
-      nodes.push(u);
-      predecessor = predecessors[u];
-      u = predecessors[u];
-    }
-    nodes.reverse();
-    return nodes;
-  },
-
-  find_path: function(graph, s, d) {
-    var predecessors = dijkstra.single_source_shortest_paths(graph, s, d);
-    return dijkstra.extract_shortest_path_from_predecessor_list(
-      predecessors, d);
-  },
-
-  /**
-   * A very naive priority queue implementation.
-   */
-  PriorityQueue: {
-    make: function (opts) {
-      var T = dijkstra.PriorityQueue,
-          t = {},
-          key;
-      opts = opts || {};
-      for (key in T) {
-        if (T.hasOwnProperty(key)) {
-          t[key] = T[key];
-        }
-      }
-      t.queue = [];
-      t.sorter = opts.sorter || T.default_sorter;
-      return t;
-    },
-
-    default_sorter: function (a, b) {
-      return a.cost - b.cost;
-    },
-
-    /**
-     * Add a new item to the queue and ensure the highest priority element
-     * is at the front of the queue.
-     */
-    push: function (value, cost) {
-      var item = {value: value, cost: cost};
-      this.queue.push(item);
-      this.queue.sort(this.sorter);
-    },
-
-    /**
-     * Return the highest priority element in the queue.
-     */
-    pop: function () {
-      return this.queue.shift();
-    },
-
-    empty: function () {
-      return this.queue.length === 0;
-    }
-  }
-};
-
-
-// node.js module exports
-if (typeof module !== 'undefined') {
-  module.exports = dijkstra;
-}
-
-},{}],30:[function(require,module,exports){
-var toString = {}.toString;
-
-module.exports = Array.isArray || function (arr) {
-  return toString.call(arr) == '[object Array]';
-};
-
-},{}],31:[function(require,module,exports){
-(function (global){
-module.exports = (typeof self === 'object' && self.self === self && self) ||
-  (typeof global === 'object' && global.global === global && global) ||
-  this;
-
-}).call(this,typeof commonjsGlobal !== "undefined" ? commonjsGlobal : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {});
-
-},{}]},{},[23])(23)
-});
-
-
-});
-
-var index = {
-  name: 'qrcode',
-  props: {
-    /**
-     * The options for the QR code generator.
-     * {@link https://github.com/soldair/node-qrcode#qr-code-options}
-     */
-    options: Object,
-
-    /**
-     * The tag name of the component's root element.
-     */
-    tag: {
-      type: String,
-      default: 'canvas'
-    },
-
-    /**
-     * The value of the QR code.
-     */
-    value: null
-  },
-  render: function render(createElement) {
-    return createElement(this.tag, this.$slots.default);
-  },
-  watch: {
-    $props: {
-      deep: true,
-      immediate: true,
-      handler: function handler() {
-        if (this.$el) {
-          this.generate();
-        }
-      }
-    }
-  },
-  methods: {
-    /**
-     * Generate QR code.
-     */
-    generate: function generate() {
-      var _this = this;
-
-      var options = this.options,
-          tag = this.tag;
-      var value = String(this.value);
-
-      if (tag === 'canvas') {
-        qrcode.toCanvas(this.$el, value, options, function (error) {
-          if (error) {
-            throw error;
-          }
-        });
-      } else if (tag === 'img') {
-        qrcode.toDataURL(value, options, function (error, url) {
-          if (error) {
-            throw error;
-          }
-
-          _this.$el.src = url;
-        });
-      } else {
-        qrcode.toString(value, options, function (error, string) {
-          if (error) {
-            throw error;
-          }
-
-          _this.$el.innerHTML = string;
-        });
-      }
-    }
-  },
-  mounted: function mounted() {
-    this.generate();
-  }
-};
-
-export default index;
diff --git a/BTCPayServer/wwwroot/vendor/vue-qrcode/vue-qrcode.js b/BTCPayServer/wwwroot/vendor/vue-qrcode/vue-qrcode.js
deleted file mode 100644
index 1e5a28c54..000000000
--- a/BTCPayServer/wwwroot/vendor/vue-qrcode/vue-qrcode.js
+++ /dev/null
@@ -1,3474 +0,0 @@
-/*!
- * vue-qrcode v1.0.0
- * https://fengyuanchen.github.io/vue-qrcode
- *
- * Copyright 2018-present Chen Fengyuan
- * Released under the MIT license
- *
- * Date: 2018-10-21T13:04:02.951Z
- */
-
-(function (global, factory) {
-	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
-	typeof define === 'function' && define.amd ? define(factory) :
-	(global.VueQrcode = factory());
-}(this, (function () { 'use strict';
-
-	var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
-
-	function commonjsRequire () {
-		throw new Error('Dynamic requires are not currently supported by rollup-plugin-commonjs');
-	}
-
-	function createCommonjsModule(fn, module) {
-		return module = { exports: {} }, fn(module, module.exports), module.exports;
-	}
-
-	var qrcode = createCommonjsModule(function (module, exports) {
-	(function(f){{module.exports=f();}})(function(){return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof commonjsRequire&&commonjsRequire;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t);}return n[i].exports}for(var u="function"==typeof commonjsRequire&&commonjsRequire,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
-	/**
-	 * Alignment pattern are fixed reference pattern in defined positions
-	 * in a matrix symbology, which enables the decode software to re-synchronise
-	 * the coordinate mapping of the image modules in the event of moderate amounts
-	 * of distortion of the image.
-	 *
-	 * Alignment patterns are present only in QR Code symbols of version 2 or larger
-	 * and their number depends on the symbol version.
-	 */
-
-	var getSymbolSize = require('./utils').getSymbolSize;
-
-	/**
-	 * Calculate the row/column coordinates of the center module of each alignment pattern
-	 * for the specified QR Code version.
-	 *
-	 * The alignment patterns are positioned symmetrically on either side of the diagonal
-	 * running from the top left corner of the symbol to the bottom right corner.
-	 *
-	 * Since positions are simmetrical only half of the coordinates are returned.
-	 * Each item of the array will represent in turn the x and y coordinate.
-	 * @see {@link getPositions}
-	 *
-	 * @param  {Number} version QR Code version
-	 * @return {Array}          Array of coordinate
-	 */
-	exports.getRowColCoords = function getRowColCoords (version) {
-	  if (version === 1) return []
-
-	  var posCount = Math.floor(version / 7) + 2;
-	  var size = getSymbolSize(version);
-	  var intervals = size === 145 ? 26 : Math.ceil((size - 13) / (2 * posCount - 2)) * 2;
-	  var positions = [size - 7]; // Last coord is always (size - 7)
-
-	  for (var i = 1; i < posCount - 1; i++) {
-	    positions[i] = positions[i - 1] - intervals;
-	  }
-
-	  positions.push(6); // First coord is always 6
-
-	  return positions.reverse()
-	};
-
-	/**
-	 * Returns an array containing the positions of each alignment pattern.
-	 * Each array's element represent the center point of the pattern as (x, y) coordinates
-	 *
-	 * Coordinates are calculated expanding the row/column coordinates returned by {@link getRowColCoords}
-	 * and filtering out the items that overlaps with finder pattern
-	 *
-	 * @example
-	 * For a Version 7 symbol {@link getRowColCoords} returns values 6, 22 and 38.
-	 * The alignment patterns, therefore, are to be centered on (row, column)
-	 * positions (6,22), (22,6), (22,22), (22,38), (38,22), (38,38).
-	 * Note that the coordinates (6,6), (6,38), (38,6) are occupied by finder patterns
-	 * and are not therefore used for alignment patterns.
-	 *
-	 * var pos = getPositions(7)
-	 * // [[6,22], [22,6], [22,22], [22,38], [38,22], [38,38]]
-	 *
-	 * @param  {Number} version QR Code version
-	 * @return {Array}          Array of coordinates
-	 */
-	exports.getPositions = function getPositions (version) {
-	  var coords = [];
-	  var pos = exports.getRowColCoords(version);
-	  var posLength = pos.length;
-
-	  for (var i = 0; i < posLength; i++) {
-	    for (var j = 0; j < posLength; j++) {
-	      // Skip if position is occupied by finder patterns
-	      if ((i === 0 && j === 0) ||             // top-left
-	          (i === 0 && j === posLength - 1) || // bottom-left
-	          (i === posLength - 1 && j === 0)) { // top-right
-	        continue
-	      }
-
-	      coords.push([pos[i], pos[j]]);
-	    }
-	  }
-
-	  return coords
-	};
-
-	},{"./utils":20}],2:[function(require,module,exports){
-	var Mode = require('./mode');
-
-	/**
-	 * Array of characters available in alphanumeric mode
-	 *
-	 * As per QR Code specification, to each character
-	 * is assigned a value from 0 to 44 which in this case coincides
-	 * with the array index
-	 *
-	 * @type {Array}
-	 */
-	var ALPHA_NUM_CHARS = [
-	  '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
-	  'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
-	  'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
-	  ' ', '$', '%', '*', '+', '-', '.', '/', ':'
-	];
-
-	function AlphanumericData (data) {
-	  this.mode = Mode.ALPHANUMERIC;
-	  this.data = data;
-	}
-
-	AlphanumericData.getBitsLength = function getBitsLength (length) {
-	  return 11 * Math.floor(length / 2) + 6 * (length % 2)
-	};
-
-	AlphanumericData.prototype.getLength = function getLength () {
-	  return this.data.length
-	};
-
-	AlphanumericData.prototype.getBitsLength = function getBitsLength () {
-	  return AlphanumericData.getBitsLength(this.data.length)
-	};
-
-	AlphanumericData.prototype.write = function write (bitBuffer) {
-	  var i;
-
-	  // Input data characters are divided into groups of two characters
-	  // and encoded as 11-bit binary codes.
-	  for (i = 0; i + 2 <= this.data.length; i += 2) {
-	    // The character value of the first character is multiplied by 45
-	    var value = ALPHA_NUM_CHARS.indexOf(this.data[i]) * 45;
-
-	    // The character value of the second digit is added to the product
-	    value += ALPHA_NUM_CHARS.indexOf(this.data[i + 1]);
-
-	    // The sum is then stored as 11-bit binary number
-	    bitBuffer.put(value, 11);
-	  }
-
-	  // If the number of input data characters is not a multiple of two,
-	  // the character value of the final character is encoded as a 6-bit binary number.
-	  if (this.data.length % 2) {
-	    bitBuffer.put(ALPHA_NUM_CHARS.indexOf(this.data[i]), 6);
-	  }
-	};
-
-	module.exports = AlphanumericData;
-
-	},{"./mode":13}],3:[function(require,module,exports){
-	function BitBuffer () {
-	  this.buffer = [];
-	  this.length = 0;
-	}
-
-	BitBuffer.prototype = {
-
-	  get: function (index) {
-	    var bufIndex = Math.floor(index / 8);
-	    return ((this.buffer[bufIndex] >>> (7 - index % 8)) & 1) === 1
-	  },
-
-	  put: function (num, length) {
-	    for (var i = 0; i < length; i++) {
-	      this.putBit(((num >>> (length - i - 1)) & 1) === 1);
-	    }
-	  },
-
-	  getLengthInBits: function () {
-	    return this.length
-	  },
-
-	  putBit: function (bit) {
-	    var bufIndex = Math.floor(this.length / 8);
-	    if (this.buffer.length <= bufIndex) {
-	      this.buffer.push(0);
-	    }
-
-	    if (bit) {
-	      this.buffer[bufIndex] |= (0x80 >>> (this.length % 8));
-	    }
-
-	    this.length++;
-	  }
-	};
-
-	module.exports = BitBuffer;
-
-	},{}],4:[function(require,module,exports){
-	var Buffer = require('../utils/buffer');
-
-	/**
-	 * Helper class to handle QR Code symbol modules
-	 *
-	 * @param {Number} size Symbol size
-	 */
-	function BitMatrix (size) {
-	  if (!size || size < 1) {
-	    throw new Error('BitMatrix size must be defined and greater than 0')
-	  }
-
-	  this.size = size;
-	  this.data = new Buffer(size * size);
-	  this.data.fill(0);
-	  this.reservedBit = new Buffer(size * size);
-	  this.reservedBit.fill(0);
-	}
-
-	/**
-	 * Set bit value at specified location
-	 * If reserved flag is set, this bit will be ignored during masking process
-	 *
-	 * @param {Number}  row
-	 * @param {Number}  col
-	 * @param {Boolean} value
-	 * @param {Boolean} reserved
-	 */
-	BitMatrix.prototype.set = function (row, col, value, reserved) {
-	  var index = row * this.size + col;
-	  this.data[index] = value;
-	  if (reserved) this.reservedBit[index] = true;
-	};
-
-	/**
-	 * Returns bit value at specified location
-	 *
-	 * @param  {Number}  row
-	 * @param  {Number}  col
-	 * @return {Boolean}
-	 */
-	BitMatrix.prototype.get = function (row, col) {
-	  return this.data[row * this.size + col]
-	};
-
-	/**
-	 * Applies xor operator at specified location
-	 * (used during masking process)
-	 *
-	 * @param {Number}  row
-	 * @param {Number}  col
-	 * @param {Boolean} value
-	 */
-	BitMatrix.prototype.xor = function (row, col, value) {
-	  this.data[row * this.size + col] ^= value;
-	};
-
-	/**
-	 * Check if bit at specified location is reserved
-	 *
-	 * @param {Number}   row
-	 * @param {Number}   col
-	 * @return {Boolean}
-	 */
-	BitMatrix.prototype.isReserved = function (row, col) {
-	  return this.reservedBit[row * this.size + col]
-	};
-
-	module.exports = BitMatrix;
-
-	},{"../utils/buffer":27}],5:[function(require,module,exports){
-	var Buffer = require('../utils/buffer');
-	var Mode = require('./mode');
-
-	function ByteData (data) {
-	  this.mode = Mode.BYTE;
-	  this.data = new Buffer(data);
-	}
-
-	ByteData.getBitsLength = function getBitsLength (length) {
-	  return length * 8
-	};
-
-	ByteData.prototype.getLength = function getLength () {
-	  return this.data.length
-	};
-
-	ByteData.prototype.getBitsLength = function getBitsLength () {
-	  return ByteData.getBitsLength(this.data.length)
-	};
-
-	ByteData.prototype.write = function (bitBuffer) {
-	  for (var i = 0, l = this.data.length; i < l; i++) {
-	    bitBuffer.put(this.data[i], 8);
-	  }
-	};
-
-	module.exports = ByteData;
-
-	},{"../utils/buffer":27,"./mode":13}],6:[function(require,module,exports){
-	var ECLevel = require('./error-correction-level');
-
-	var EC_BLOCKS_TABLE = [
-	// L  M  Q  H
-	  1, 1, 1, 1,
-	  1, 1, 1, 1,
-	  1, 1, 2, 2,
-	  1, 2, 2, 4,
-	  1, 2, 4, 4,
-	  2, 4, 4, 4,
-	  2, 4, 6, 5,
-	  2, 4, 6, 6,
-	  2, 5, 8, 8,
-	  4, 5, 8, 8,
-	  4, 5, 8, 11,
-	  4, 8, 10, 11,
-	  4, 9, 12, 16,
-	  4, 9, 16, 16,
-	  6, 10, 12, 18,
-	  6, 10, 17, 16,
-	  6, 11, 16, 19,
-	  6, 13, 18, 21,
-	  7, 14, 21, 25,
-	  8, 16, 20, 25,
-	  8, 17, 23, 25,
-	  9, 17, 23, 34,
-	  9, 18, 25, 30,
-	  10, 20, 27, 32,
-	  12, 21, 29, 35,
-	  12, 23, 34, 37,
-	  12, 25, 34, 40,
-	  13, 26, 35, 42,
-	  14, 28, 38, 45,
-	  15, 29, 40, 48,
-	  16, 31, 43, 51,
-	  17, 33, 45, 54,
-	  18, 35, 48, 57,
-	  19, 37, 51, 60,
-	  19, 38, 53, 63,
-	  20, 40, 56, 66,
-	  21, 43, 59, 70,
-	  22, 45, 62, 74,
-	  24, 47, 65, 77,
-	  25, 49, 68, 81
-	];
-
-	var EC_CODEWORDS_TABLE = [
-	// L  M  Q  H
-	  7, 10, 13, 17,
-	  10, 16, 22, 28,
-	  15, 26, 36, 44,
-	  20, 36, 52, 64,
-	  26, 48, 72, 88,
-	  36, 64, 96, 112,
-	  40, 72, 108, 130,
-	  48, 88, 132, 156,
-	  60, 110, 160, 192,
-	  72, 130, 192, 224,
-	  80, 150, 224, 264,
-	  96, 176, 260, 308,
-	  104, 198, 288, 352,
-	  120, 216, 320, 384,
-	  132, 240, 360, 432,
-	  144, 280, 408, 480,
-	  168, 308, 448, 532,
-	  180, 338, 504, 588,
-	  196, 364, 546, 650,
-	  224, 416, 600, 700,
-	  224, 442, 644, 750,
-	  252, 476, 690, 816,
-	  270, 504, 750, 900,
-	  300, 560, 810, 960,
-	  312, 588, 870, 1050,
-	  336, 644, 952, 1110,
-	  360, 700, 1020, 1200,
-	  390, 728, 1050, 1260,
-	  420, 784, 1140, 1350,
-	  450, 812, 1200, 1440,
-	  480, 868, 1290, 1530,
-	  510, 924, 1350, 1620,
-	  540, 980, 1440, 1710,
-	  570, 1036, 1530, 1800,
-	  570, 1064, 1590, 1890,
-	  600, 1120, 1680, 1980,
-	  630, 1204, 1770, 2100,
-	  660, 1260, 1860, 2220,
-	  720, 1316, 1950, 2310,
-	  750, 1372, 2040, 2430
-	];
-
-	/**
-	 * Returns the number of error correction block that the QR Code should contain
-	 * for the specified version and error correction level.
-	 *
-	 * @param  {Number} version              QR Code version
-	 * @param  {Number} errorCorrectionLevel Error correction level
-	 * @return {Number}                      Number of error correction blocks
-	 */
-	exports.getBlocksCount = function getBlocksCount (version, errorCorrectionLevel) {
-	  switch (errorCorrectionLevel) {
-	    case ECLevel.L:
-	      return EC_BLOCKS_TABLE[(version - 1) * 4 + 0]
-	    case ECLevel.M:
-	      return EC_BLOCKS_TABLE[(version - 1) * 4 + 1]
-	    case ECLevel.Q:
-	      return EC_BLOCKS_TABLE[(version - 1) * 4 + 2]
-	    case ECLevel.H:
-	      return EC_BLOCKS_TABLE[(version - 1) * 4 + 3]
-	    default:
-	      return undefined
-	  }
-	};
-
-	/**
-	 * Returns the number of error correction codewords to use for the specified
-	 * version and error correction level.
-	 *
-	 * @param  {Number} version              QR Code version
-	 * @param  {Number} errorCorrectionLevel Error correction level
-	 * @return {Number}                      Number of error correction codewords
-	 */
-	exports.getTotalCodewordsCount = function getTotalCodewordsCount (version, errorCorrectionLevel) {
-	  switch (errorCorrectionLevel) {
-	    case ECLevel.L:
-	      return EC_CODEWORDS_TABLE[(version - 1) * 4 + 0]
-	    case ECLevel.M:
-	      return EC_CODEWORDS_TABLE[(version - 1) * 4 + 1]
-	    case ECLevel.Q:
-	      return EC_CODEWORDS_TABLE[(version - 1) * 4 + 2]
-	    case ECLevel.H:
-	      return EC_CODEWORDS_TABLE[(version - 1) * 4 + 3]
-	    default:
-	      return undefined
-	  }
-	};
-
-	},{"./error-correction-level":7}],7:[function(require,module,exports){
-	exports.L = { bit: 1 };
-	exports.M = { bit: 0 };
-	exports.Q = { bit: 3 };
-	exports.H = { bit: 2 };
-
-	function fromString (string) {
-	  if (typeof string !== 'string') {
-	    throw new Error('Param is not a string')
-	  }
-
-	  var lcStr = string.toLowerCase();
-
-	  switch (lcStr) {
-	    case 'l':
-	    case 'low':
-	      return exports.L
-
-	    case 'm':
-	    case 'medium':
-	      return exports.M
-
-	    case 'q':
-	    case 'quartile':
-	      return exports.Q
-
-	    case 'h':
-	    case 'high':
-	      return exports.H
-
-	    default:
-	      throw new Error('Unknown EC Level: ' + string)
-	  }
-	}
-
-	exports.isValid = function isValid (level) {
-	  return level && typeof level.bit !== 'undefined' &&
-	    level.bit >= 0 && level.bit < 4
-	};
-
-	exports.from = function from (value, defaultValue) {
-	  if (exports.isValid(value)) {
-	    return value
-	  }
-
-	  try {
-	    return fromString(value)
-	  } catch (e) {
-	    return defaultValue
-	  }
-	};
-
-	},{}],8:[function(require,module,exports){
-	var getSymbolSize = require('./utils').getSymbolSize;
-	var FINDER_PATTERN_SIZE = 7;
-
-	/**
-	 * Returns an array containing the positions of each finder pattern.
-	 * Each array's element represent the top-left point of the pattern as (x, y) coordinates
-	 *
-	 * @param  {Number} version QR Code version
-	 * @return {Array}          Array of coordinates
-	 */
-	exports.getPositions = function getPositions (version) {
-	  var size = getSymbolSize(version);
-
-	  return [
-	    // top-left
-	    [0, 0],
-	    // top-right
-	    [size - FINDER_PATTERN_SIZE, 0],
-	    // bottom-left
-	    [0, size - FINDER_PATTERN_SIZE]
-	  ]
-	};
-
-	},{"./utils":20}],9:[function(require,module,exports){
-	var Utils = require('./utils');
-
-	var G15 = (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0);
-	var G15_MASK = (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1);
-	var G15_BCH = Utils.getBCHDigit(G15);
-
-	/**
-	 * Returns format information with relative error correction bits
-	 *
-	 * The format information is a 15-bit sequence containing 5 data bits,
-	 * with 10 error correction bits calculated using the (15, 5) BCH code.
-	 *
-	 * @param  {Number} errorCorrectionLevel Error correction level
-	 * @param  {Number} mask                 Mask pattern
-	 * @return {Number}                      Encoded format information bits
-	 */
-	exports.getEncodedBits = function getEncodedBits (errorCorrectionLevel, mask) {
-	  var data = ((errorCorrectionLevel.bit << 3) | mask);
-	  var d = data << 10;
-
-	  while (Utils.getBCHDigit(d) - G15_BCH >= 0) {
-	    d ^= (G15 << (Utils.getBCHDigit(d) - G15_BCH));
-	  }
-
-	  // xor final data with mask pattern in order to ensure that
-	  // no combination of Error Correction Level and data mask pattern
-	  // will result in an all-zero data string
-	  return ((data << 10) | d) ^ G15_MASK
-	};
-
-	},{"./utils":20}],10:[function(require,module,exports){
-	var Buffer = require('../utils/buffer');
-
-	var EXP_TABLE = new Buffer(512);
-	var LOG_TABLE = new Buffer(256)
-
-	/**
-	 * Precompute the log and anti-log tables for faster computation later
-	 *
-	 * For each possible value in the galois field 2^8, we will pre-compute
-	 * the logarithm and anti-logarithm (exponential) of this value
-	 *
-	 * ref {@link https://en.wikiversity.org/wiki/Reed%E2%80%93Solomon_codes_for_coders#Introduction_to_mathematical_fields}
-	 */
-	;(function initTables () {
-	  var x = 1;
-	  for (var i = 0; i < 255; i++) {
-	    EXP_TABLE[i] = x;
-	    LOG_TABLE[x] = i;
-
-	    x <<= 1; // multiply by 2
-
-	    // The QR code specification says to use byte-wise modulo 100011101 arithmetic.
-	    // This means that when a number is 256 or larger, it should be XORed with 0x11D.
-	    if (x & 0x100) { // similar to x >= 256, but a lot faster (because 0x100 == 256)
-	      x ^= 0x11D;
-	    }
-	  }
-
-	  // Optimization: double the size of the anti-log table so that we don't need to mod 255 to
-	  // stay inside the bounds (because we will mainly use this table for the multiplication of
-	  // two GF numbers, no more).
-	  // @see {@link mul}
-	  for (i = 255; i < 512; i++) {
-	    EXP_TABLE[i] = EXP_TABLE[i - 255];
-	  }
-	}());
-
-	/**
-	 * Returns log value of n inside Galois Field
-	 *
-	 * @param  {Number} n
-	 * @return {Number}
-	 */
-	exports.log = function log (n) {
-	  if (n < 1) throw new Error('log(' + n + ')')
-	  return LOG_TABLE[n]
-	};
-
-	/**
-	 * Returns anti-log value of n inside Galois Field
-	 *
-	 * @param  {Number} n
-	 * @return {Number}
-	 */
-	exports.exp = function exp (n) {
-	  return EXP_TABLE[n]
-	};
-
-	/**
-	 * Multiplies two number inside Galois Field
-	 *
-	 * @param  {Number} x
-	 * @param  {Number} y
-	 * @return {Number}
-	 */
-	exports.mul = function mul (x, y) {
-	  if (x === 0 || y === 0) return 0
-
-	  // should be EXP_TABLE[(LOG_TABLE[x] + LOG_TABLE[y]) % 255] if EXP_TABLE wasn't oversized
-	  // @see {@link initTables}
-	  return EXP_TABLE[LOG_TABLE[x] + LOG_TABLE[y]]
-	};
-
-	},{"../utils/buffer":27}],11:[function(require,module,exports){
-	var Mode = require('./mode');
-	var Utils = require('./utils');
-
-	function KanjiData (data) {
-	  this.mode = Mode.KANJI;
-	  this.data = data;
-	}
-
-	KanjiData.getBitsLength = function getBitsLength (length) {
-	  return length * 13
-	};
-
-	KanjiData.prototype.getLength = function getLength () {
-	  return this.data.length
-	};
-
-	KanjiData.prototype.getBitsLength = function getBitsLength () {
-	  return KanjiData.getBitsLength(this.data.length)
-	};
-
-	KanjiData.prototype.write = function (bitBuffer) {
-	  var i;
-
-	  // In the Shift JIS system, Kanji characters are represented by a two byte combination.
-	  // These byte values are shifted from the JIS X 0208 values.
-	  // JIS X 0208 gives details of the shift coded representation.
-	  for (i = 0; i < this.data.length; i++) {
-	    var value = Utils.toSJIS(this.data[i]);
-
-	    // For characters with Shift JIS values from 0x8140 to 0x9FFC:
-	    if (value >= 0x8140 && value <= 0x9FFC) {
-	      // Subtract 0x8140 from Shift JIS value
-	      value -= 0x8140;
-
-	    // For characters with Shift JIS values from 0xE040 to 0xEBBF
-	    } else if (value >= 0xE040 && value <= 0xEBBF) {
-	      // Subtract 0xC140 from Shift JIS value
-	      value -= 0xC140;
-	    } else {
-	      throw new Error(
-	        'Invalid SJIS character: ' + this.data[i] + '\n' +
-	        'Make sure your charset is UTF-8')
-	    }
-
-	    // Multiply most significant byte of result by 0xC0
-	    // and add least significant byte to product
-	    value = (((value >>> 8) & 0xff) * 0xC0) + (value & 0xff);
-
-	    // Convert result to a 13-bit binary string
-	    bitBuffer.put(value, 13);
-	  }
-	};
-
-	module.exports = KanjiData;
-
-	},{"./mode":13,"./utils":20}],12:[function(require,module,exports){
-	/**
-	 * Data mask pattern reference
-	 * @type {Object}
-	 */
-	exports.Patterns = {
-	  PATTERN000: 0,
-	  PATTERN001: 1,
-	  PATTERN010: 2,
-	  PATTERN011: 3,
-	  PATTERN100: 4,
-	  PATTERN101: 5,
-	  PATTERN110: 6,
-	  PATTERN111: 7
-	};
-
-	/**
-	 * Weighted penalty scores for the undesirable features
-	 * @type {Object}
-	 */
-	var PenaltyScores = {
-	  N1: 3,
-	  N2: 3,
-	  N3: 40,
-	  N4: 10
-	};
-
-	/**
-	 * Check if mask pattern value is valid
-	 *
-	 * @param  {Number}  mask    Mask pattern
-	 * @return {Boolean}         true if valid, false otherwise
-	 */
-	exports.isValid = function isValid (mask) {
-	  return mask != null && mask !== '' && !isNaN(mask) && mask >= 0 && mask <= 7
-	};
-
-	/**
-	 * Returns mask pattern from a value.
-	 * If value is not valid, returns undefined
-	 *
-	 * @param  {Number|String} value        Mask pattern value
-	 * @return {Number}                     Valid mask pattern or undefined
-	 */
-	exports.from = function from (value) {
-	  return exports.isValid(value) ? parseInt(value, 10) : undefined
-	};
-
-	/**
-	* Find adjacent modules in row/column with the same color
-	* and assign a penalty value.
-	*
-	* Points: N1 + i
-	* i is the amount by which the number of adjacent modules of the same color exceeds 5
-	*/
-	exports.getPenaltyN1 = function getPenaltyN1 (data) {
-	  var size = data.size;
-	  var points = 0;
-	  var sameCountCol = 0;
-	  var sameCountRow = 0;
-	  var lastCol = null;
-	  var lastRow = null;
-
-	  for (var row = 0; row < size; row++) {
-	    sameCountCol = sameCountRow = 0;
-	    lastCol = lastRow = null;
-
-	    for (var col = 0; col < size; col++) {
-	      var module = data.get(row, col);
-	      if (module === lastCol) {
-	        sameCountCol++;
-	      } else {
-	        if (sameCountCol >= 5) points += PenaltyScores.N1 + (sameCountCol - 5);
-	        lastCol = module;
-	        sameCountCol = 1;
-	      }
-
-	      module = data.get(col, row);
-	      if (module === lastRow) {
-	        sameCountRow++;
-	      } else {
-	        if (sameCountRow >= 5) points += PenaltyScores.N1 + (sameCountRow - 5);
-	        lastRow = module;
-	        sameCountRow = 1;
-	      }
-	    }
-
-	    if (sameCountCol >= 5) points += PenaltyScores.N1 + (sameCountCol - 5);
-	    if (sameCountRow >= 5) points += PenaltyScores.N1 + (sameCountRow - 5);
-	  }
-
-	  return points
-	};
-
-	/**
-	 * Find 2x2 blocks with the same color and assign a penalty value
-	 *
-	 * Points: N2 * (m - 1) * (n - 1)
-	 */
-	exports.getPenaltyN2 = function getPenaltyN2 (data) {
-	  var size = data.size;
-	  var points = 0;
-
-	  for (var row = 0; row < size - 1; row++) {
-	    for (var col = 0; col < size - 1; col++) {
-	      var last = data.get(row, col) +
-	        data.get(row, col + 1) +
-	        data.get(row + 1, col) +
-	        data.get(row + 1, col + 1);
-
-	      if (last === 4 || last === 0) points++;
-	    }
-	  }
-
-	  return points * PenaltyScores.N2
-	};
-
-	/**
-	 * Find 1:1:3:1:1 ratio (dark:light:dark:light:dark) pattern in row/column,
-	 * preceded or followed by light area 4 modules wide
-	 *
-	 * Points: N3 * number of pattern found
-	 */
-	exports.getPenaltyN3 = function getPenaltyN3 (data) {
-	  var size = data.size;
-	  var points = 0;
-	  var bitsCol = 0;
-	  var bitsRow = 0;
-
-	  for (var row = 0; row < size; row++) {
-	    bitsCol = bitsRow = 0;
-	    for (var col = 0; col < size; col++) {
-	      bitsCol = ((bitsCol << 1) & 0x7FF) | data.get(row, col);
-	      if (col >= 10 && (bitsCol === 0x5D0 || bitsCol === 0x05D)) points++;
-
-	      bitsRow = ((bitsRow << 1) & 0x7FF) | data.get(col, row);
-	      if (col >= 10 && (bitsRow === 0x5D0 || bitsRow === 0x05D)) points++;
-	    }
-	  }
-
-	  return points * PenaltyScores.N3
-	};
-
-	/**
-	 * Calculate proportion of dark modules in entire symbol
-	 *
-	 * Points: N4 * k
-	 *
-	 * k is the rating of the deviation of the proportion of dark modules
-	 * in the symbol from 50% in steps of 5%
-	 */
-	exports.getPenaltyN4 = function getPenaltyN4 (data) {
-	  var darkCount = 0;
-	  var modulesCount = data.data.length;
-
-	  for (var i = 0; i < modulesCount; i++) darkCount += data.data[i];
-
-	  var k = Math.abs(Math.ceil((darkCount * 100 / modulesCount) / 5) - 10);
-
-	  return k * PenaltyScores.N4
-	};
-
-	/**
-	 * Return mask value at given position
-	 *
-	 * @param  {Number} maskPattern Pattern reference value
-	 * @param  {Number} i           Row
-	 * @param  {Number} j           Column
-	 * @return {Boolean}            Mask value
-	 */
-	function getMaskAt (maskPattern, i, j) {
-	  switch (maskPattern) {
-	    case exports.Patterns.PATTERN000: return (i + j) % 2 === 0
-	    case exports.Patterns.PATTERN001: return i % 2 === 0
-	    case exports.Patterns.PATTERN010: return j % 3 === 0
-	    case exports.Patterns.PATTERN011: return (i + j) % 3 === 0
-	    case exports.Patterns.PATTERN100: return (Math.floor(i / 2) + Math.floor(j / 3)) % 2 === 0
-	    case exports.Patterns.PATTERN101: return (i * j) % 2 + (i * j) % 3 === 0
-	    case exports.Patterns.PATTERN110: return ((i * j) % 2 + (i * j) % 3) % 2 === 0
-	    case exports.Patterns.PATTERN111: return ((i * j) % 3 + (i + j) % 2) % 2 === 0
-
-	    default: throw new Error('bad maskPattern:' + maskPattern)
-	  }
-	}
-
-	/**
-	 * Apply a mask pattern to a BitMatrix
-	 *
-	 * @param  {Number}    pattern Pattern reference number
-	 * @param  {BitMatrix} data    BitMatrix data
-	 */
-	exports.applyMask = function applyMask (pattern, data) {
-	  var size = data.size;
-
-	  for (var col = 0; col < size; col++) {
-	    for (var row = 0; row < size; row++) {
-	      if (data.isReserved(row, col)) continue
-	      data.xor(row, col, getMaskAt(pattern, row, col));
-	    }
-	  }
-	};
-
-	/**
-	 * Returns the best mask pattern for data
-	 *
-	 * @param  {BitMatrix} data
-	 * @return {Number} Mask pattern reference number
-	 */
-	exports.getBestMask = function getBestMask (data, setupFormatFunc) {
-	  var numPatterns = Object.keys(exports.Patterns).length;
-	  var bestPattern = 0;
-	  var lowerPenalty = Infinity;
-
-	  for (var p = 0; p < numPatterns; p++) {
-	    setupFormatFunc(p);
-	    exports.applyMask(p, data);
-
-	    // Calculate penalty
-	    var penalty =
-	      exports.getPenaltyN1(data) +
-	      exports.getPenaltyN2(data) +
-	      exports.getPenaltyN3(data) +
-	      exports.getPenaltyN4(data);
-
-	    // Undo previously applied mask
-	    exports.applyMask(p, data);
-
-	    if (penalty < lowerPenalty) {
-	      lowerPenalty = penalty;
-	      bestPattern = p;
-	    }
-	  }
-
-	  return bestPattern
-	};
-
-	},{}],13:[function(require,module,exports){
-	var VersionCheck = require('./version-check');
-	var Regex = require('./regex');
-
-	/**
-	 * Numeric mode encodes data from the decimal digit set (0 - 9)
-	 * (byte values 30HEX to 39HEX).
-	 * Normally, 3 data characters are represented by 10 bits.
-	 *
-	 * @type {Object}
-	 */
-	exports.NUMERIC = {
-	  id: 'Numeric',
-	  bit: 1 << 0,
-	  ccBits: [10, 12, 14]
-	};
-
-	/**
-	 * Alphanumeric mode encodes data from a set of 45 characters,
-	 * i.e. 10 numeric digits (0 - 9),
-	 *      26 alphabetic characters (A - Z),
-	 *   and 9 symbols (SP, $, %, *, +, -, ., /, :).
-	 * Normally, two input characters are represented by 11 bits.
-	 *
-	 * @type {Object}
-	 */
-	exports.ALPHANUMERIC = {
-	  id: 'Alphanumeric',
-	  bit: 1 << 1,
-	  ccBits: [9, 11, 13]
-	};
-
-	/**
-	 * In byte mode, data is encoded at 8 bits per character.
-	 *
-	 * @type {Object}
-	 */
-	exports.BYTE = {
-	  id: 'Byte',
-	  bit: 1 << 2,
-	  ccBits: [8, 16, 16]
-	};
-
-	/**
-	 * The Kanji mode efficiently encodes Kanji characters in accordance with
-	 * the Shift JIS system based on JIS X 0208.
-	 * The Shift JIS values are shifted from the JIS X 0208 values.
-	 * JIS X 0208 gives details of the shift coded representation.
-	 * Each two-byte character value is compacted to a 13-bit binary codeword.
-	 *
-	 * @type {Object}
-	 */
-	exports.KANJI = {
-	  id: 'Kanji',
-	  bit: 1 << 3,
-	  ccBits: [8, 10, 12]
-	};
-
-	/**
-	 * Mixed mode will contain a sequences of data in a combination of any of
-	 * the modes described above
-	 *
-	 * @type {Object}
-	 */
-	exports.MIXED = {
-	  bit: -1
-	};
-
-	/**
-	 * Returns the number of bits needed to store the data length
-	 * according to QR Code specifications.
-	 *
-	 * @param  {Mode}   mode    Data mode
-	 * @param  {Number} version QR Code version
-	 * @return {Number}         Number of bits
-	 */
-	exports.getCharCountIndicator = function getCharCountIndicator (mode, version) {
-	  if (!mode.ccBits) throw new Error('Invalid mode: ' + mode)
-
-	  if (!VersionCheck.isValid(version)) {
-	    throw new Error('Invalid version: ' + version)
-	  }
-
-	  if (version >= 1 && version < 10) return mode.ccBits[0]
-	  else if (version < 27) return mode.ccBits[1]
-	  return mode.ccBits[2]
-	};
-
-	/**
-	 * Returns the most efficient mode to store the specified data
-	 *
-	 * @param  {String} dataStr Input data string
-	 * @return {Mode}           Best mode
-	 */
-	exports.getBestModeForData = function getBestModeForData (dataStr) {
-	  if (Regex.testNumeric(dataStr)) return exports.NUMERIC
-	  else if (Regex.testAlphanumeric(dataStr)) return exports.ALPHANUMERIC
-	  else if (Regex.testKanji(dataStr)) return exports.KANJI
-	  else return exports.BYTE
-	};
-
-	/**
-	 * Return mode name as string
-	 *
-	 * @param {Mode} mode Mode object
-	 * @returns {String}  Mode name
-	 */
-	exports.toString = function toString (mode) {
-	  if (mode && mode.id) return mode.id
-	  throw new Error('Invalid mode')
-	};
-
-	/**
-	 * Check if input param is a valid mode object
-	 *
-	 * @param   {Mode}    mode Mode object
-	 * @returns {Boolean} True if valid mode, false otherwise
-	 */
-	exports.isValid = function isValid (mode) {
-	  return mode && mode.bit && mode.ccBits
-	};
-
-	/**
-	 * Get mode object from its name
-	 *
-	 * @param   {String} string Mode name
-	 * @returns {Mode}          Mode object
-	 */
-	function fromString (string) {
-	  if (typeof string !== 'string') {
-	    throw new Error('Param is not a string')
-	  }
-
-	  var lcStr = string.toLowerCase();
-
-	  switch (lcStr) {
-	    case 'numeric':
-	      return exports.NUMERIC
-	    case 'alphanumeric':
-	      return exports.ALPHANUMERIC
-	    case 'kanji':
-	      return exports.KANJI
-	    case 'byte':
-	      return exports.BYTE
-	    default:
-	      throw new Error('Unknown mode: ' + string)
-	  }
-	}
-
-	/**
-	 * Returns mode from a value.
-	 * If value is not a valid mode, returns defaultValue
-	 *
-	 * @param  {Mode|String} value        Encoding mode
-	 * @param  {Mode}        defaultValue Fallback value
-	 * @return {Mode}                     Encoding mode
-	 */
-	exports.from = function from (value, defaultValue) {
-	  if (exports.isValid(value)) {
-	    return value
-	  }
-
-	  try {
-	    return fromString(value)
-	  } catch (e) {
-	    return defaultValue
-	  }
-	};
-
-	},{"./regex":18,"./version-check":21}],14:[function(require,module,exports){
-	var Mode = require('./mode');
-
-	function NumericData (data) {
-	  this.mode = Mode.NUMERIC;
-	  this.data = data.toString();
-	}
-
-	NumericData.getBitsLength = function getBitsLength (length) {
-	  return 10 * Math.floor(length / 3) + ((length % 3) ? ((length % 3) * 3 + 1) : 0)
-	};
-
-	NumericData.prototype.getLength = function getLength () {
-	  return this.data.length
-	};
-
-	NumericData.prototype.getBitsLength = function getBitsLength () {
-	  return NumericData.getBitsLength(this.data.length)
-	};
-
-	NumericData.prototype.write = function write (bitBuffer) {
-	  var i, group, value;
-
-	  // The input data string is divided into groups of three digits,
-	  // and each group is converted to its 10-bit binary equivalent.
-	  for (i = 0; i + 3 <= this.data.length; i += 3) {
-	    group = this.data.substr(i, 3);
-	    value = parseInt(group, 10);
-
-	    bitBuffer.put(value, 10);
-	  }
-
-	  // If the number of input digits is not an exact multiple of three,
-	  // the final one or two digits are converted to 4 or 7 bits respectively.
-	  var remainingNum = this.data.length - i;
-	  if (remainingNum > 0) {
-	    group = this.data.substr(i);
-	    value = parseInt(group, 10);
-
-	    bitBuffer.put(value, remainingNum * 3 + 1);
-	  }
-	};
-
-	module.exports = NumericData;
-
-	},{"./mode":13}],15:[function(require,module,exports){
-	var Buffer = require('../utils/buffer');
-	var GF = require('./galois-field');
-
-	/**
-	 * Multiplies two polynomials inside Galois Field
-	 *
-	 * @param  {Buffer} p1 Polynomial
-	 * @param  {Buffer} p2 Polynomial
-	 * @return {Buffer}    Product of p1 and p2
-	 */
-	exports.mul = function mul (p1, p2) {
-	  var coeff = new Buffer(p1.length + p2.length - 1);
-	  coeff.fill(0);
-
-	  for (var i = 0; i < p1.length; i++) {
-	    for (var j = 0; j < p2.length; j++) {
-	      coeff[i + j] ^= GF.mul(p1[i], p2[j]);
-	    }
-	  }
-
-	  return coeff
-	};
-
-	/**
-	 * Calculate the remainder of polynomials division
-	 *
-	 * @param  {Buffer} divident Polynomial
-	 * @param  {Buffer} divisor  Polynomial
-	 * @return {Buffer}          Remainder
-	 */
-	exports.mod = function mod (divident, divisor) {
-	  var result = new Buffer(divident);
-
-	  while ((result.length - divisor.length) >= 0) {
-	    var coeff = result[0];
-
-	    for (var i = 0; i < divisor.length; i++) {
-	      result[i] ^= GF.mul(divisor[i], coeff);
-	    }
-
-	    // remove all zeros from buffer head
-	    var offset = 0;
-	    while (offset < result.length && result[offset] === 0) offset++;
-	    result = result.slice(offset);
-	  }
-
-	  return result
-	};
-
-	/**
-	 * Generate an irreducible generator polynomial of specified degree
-	 * (used by Reed-Solomon encoder)
-	 *
-	 * @param  {Number} degree Degree of the generator polynomial
-	 * @return {Buffer}        Buffer containing polynomial coefficients
-	 */
-	exports.generateECPolynomial = function generateECPolynomial (degree) {
-	  var poly = new Buffer([1]);
-	  for (var i = 0; i < degree; i++) {
-	    poly = exports.mul(poly, [1, GF.exp(i)]);
-	  }
-
-	  return poly
-	};
-
-	},{"../utils/buffer":27,"./galois-field":10}],16:[function(require,module,exports){
-	var Buffer = require('../utils/buffer');
-	var Utils = require('./utils');
-	var ECLevel = require('./error-correction-level');
-	var BitBuffer = require('./bit-buffer');
-	var BitMatrix = require('./bit-matrix');
-	var AlignmentPattern = require('./alignment-pattern');
-	var FinderPattern = require('./finder-pattern');
-	var MaskPattern = require('./mask-pattern');
-	var ECCode = require('./error-correction-code');
-	var ReedSolomonEncoder = require('./reed-solomon-encoder');
-	var Version = require('./version');
-	var FormatInfo = require('./format-info');
-	var Mode = require('./mode');
-	var Segments = require('./segments');
-	var isArray = require('isarray');
-
-	/**
-	 * QRCode for JavaScript
-	 *
-	 * modified by Ryan Day for nodejs support
-	 * Copyright (c) 2011 Ryan Day
-	 *
-	 * Licensed under the MIT license:
-	 *   http://www.opensource.org/licenses/mit-license.php
-	 *
-	//---------------------------------------------------------------------
-	// QRCode for JavaScript
-	//
-	// Copyright (c) 2009 Kazuhiko Arase
-	//
-	// URL: http://www.d-project.com/
-	//
-	// Licensed under the MIT license:
-	//   http://www.opensource.org/licenses/mit-license.php
-	//
-	// The word "QR Code" is registered trademark of
-	// DENSO WAVE INCORPORATED
-	//   http://www.denso-wave.com/qrcode/faqpatent-e.html
-	//
-	//---------------------------------------------------------------------
-	*/
-
-	/**
-	 * Add finder patterns bits to matrix
-	 *
-	 * @param  {BitMatrix} matrix  Modules matrix
-	 * @param  {Number}    version QR Code version
-	 */
-	function setupFinderPattern (matrix, version) {
-	  var size = matrix.size;
-	  var pos = FinderPattern.getPositions(version);
-
-	  for (var i = 0; i < pos.length; i++) {
-	    var row = pos[i][0];
-	    var col = pos[i][1];
-
-	    for (var r = -1; r <= 7; r++) {
-	      if (row + r <= -1 || size <= row + r) continue
-
-	      for (var c = -1; c <= 7; c++) {
-	        if (col + c <= -1 || size <= col + c) continue
-
-	        if ((r >= 0 && r <= 6 && (c === 0 || c === 6)) ||
-	          (c >= 0 && c <= 6 && (r === 0 || r === 6)) ||
-	          (r >= 2 && r <= 4 && c >= 2 && c <= 4)) {
-	          matrix.set(row + r, col + c, true, true);
-	        } else {
-	          matrix.set(row + r, col + c, false, true);
-	        }
-	      }
-	    }
-	  }
-	}
-
-	/**
-	 * Add timing pattern bits to matrix
-	 *
-	 * Note: this function must be called before {@link setupAlignmentPattern}
-	 *
-	 * @param  {BitMatrix} matrix Modules matrix
-	 */
-	function setupTimingPattern (matrix) {
-	  var size = matrix.size;
-
-	  for (var r = 8; r < size - 8; r++) {
-	    var value = r % 2 === 0;
-	    matrix.set(r, 6, value, true);
-	    matrix.set(6, r, value, true);
-	  }
-	}
-
-	/**
-	 * Add alignment patterns bits to matrix
-	 *
-	 * Note: this function must be called after {@link setupTimingPattern}
-	 *
-	 * @param  {BitMatrix} matrix  Modules matrix
-	 * @param  {Number}    version QR Code version
-	 */
-	function setupAlignmentPattern (matrix, version) {
-	  var pos = AlignmentPattern.getPositions(version);
-
-	  for (var i = 0; i < pos.length; i++) {
-	    var row = pos[i][0];
-	    var col = pos[i][1];
-
-	    for (var r = -2; r <= 2; r++) {
-	      for (var c = -2; c <= 2; c++) {
-	        if (r === -2 || r === 2 || c === -2 || c === 2 ||
-	          (r === 0 && c === 0)) {
-	          matrix.set(row + r, col + c, true, true);
-	        } else {
-	          matrix.set(row + r, col + c, false, true);
-	        }
-	      }
-	    }
-	  }
-	}
-
-	/**
-	 * Add version info bits to matrix
-	 *
-	 * @param  {BitMatrix} matrix  Modules matrix
-	 * @param  {Number}    version QR Code version
-	 */
-	function setupVersionInfo (matrix, version) {
-	  var size = matrix.size;
-	  var bits = Version.getEncodedBits(version);
-	  var row, col, mod;
-
-	  for (var i = 0; i < 18; i++) {
-	    row = Math.floor(i / 3);
-	    col = i % 3 + size - 8 - 3;
-	    mod = ((bits >> i) & 1) === 1;
-
-	    matrix.set(row, col, mod, true);
-	    matrix.set(col, row, mod, true);
-	  }
-	}
-
-	/**
-	 * Add format info bits to matrix
-	 *
-	 * @param  {BitMatrix} matrix               Modules matrix
-	 * @param  {ErrorCorrectionLevel}    errorCorrectionLevel Error correction level
-	 * @param  {Number}    maskPattern          Mask pattern reference value
-	 */
-	function setupFormatInfo (matrix, errorCorrectionLevel, maskPattern) {
-	  var size = matrix.size;
-	  var bits = FormatInfo.getEncodedBits(errorCorrectionLevel, maskPattern);
-	  var i, mod;
-
-	  for (i = 0; i < 15; i++) {
-	    mod = ((bits >> i) & 1) === 1;
-
-	    // vertical
-	    if (i < 6) {
-	      matrix.set(i, 8, mod, true);
-	    } else if (i < 8) {
-	      matrix.set(i + 1, 8, mod, true);
-	    } else {
-	      matrix.set(size - 15 + i, 8, mod, true);
-	    }
-
-	    // horizontal
-	    if (i < 8) {
-	      matrix.set(8, size - i - 1, mod, true);
-	    } else if (i < 9) {
-	      matrix.set(8, 15 - i - 1 + 1, mod, true);
-	    } else {
-	      matrix.set(8, 15 - i - 1, mod, true);
-	    }
-	  }
-
-	  // fixed module
-	  matrix.set(size - 8, 8, 1, true);
-	}
-
-	/**
-	 * Add encoded data bits to matrix
-	 *
-	 * @param  {BitMatrix} matrix Modules matrix
-	 * @param  {Buffer}    data   Data codewords
-	 */
-	function setupData (matrix, data) {
-	  var size = matrix.size;
-	  var inc = -1;
-	  var row = size - 1;
-	  var bitIndex = 7;
-	  var byteIndex = 0;
-
-	  for (var col = size - 1; col > 0; col -= 2) {
-	    if (col === 6) col--;
-
-	    while (true) {
-	      for (var c = 0; c < 2; c++) {
-	        if (!matrix.isReserved(row, col - c)) {
-	          var dark = false;
-
-	          if (byteIndex < data.length) {
-	            dark = (((data[byteIndex] >>> bitIndex) & 1) === 1);
-	          }
-
-	          matrix.set(row, col - c, dark);
-	          bitIndex--;
-
-	          if (bitIndex === -1) {
-	            byteIndex++;
-	            bitIndex = 7;
-	          }
-	        }
-	      }
-
-	      row += inc;
-
-	      if (row < 0 || size <= row) {
-	        row -= inc;
-	        inc = -inc;
-	        break
-	      }
-	    }
-	  }
-	}
-
-	/**
-	 * Create encoded codewords from data input
-	 *
-	 * @param  {Number}   version              QR Code version
-	 * @param  {ErrorCorrectionLevel}   errorCorrectionLevel Error correction level
-	 * @param  {ByteData} data                 Data input
-	 * @return {Buffer}                        Buffer containing encoded codewords
-	 */
-	function createData (version, errorCorrectionLevel, segments) {
-	  // Prepare data buffer
-	  var buffer = new BitBuffer();
-
-	  segments.forEach(function (data) {
-	    // prefix data with mode indicator (4 bits)
-	    buffer.put(data.mode.bit, 4);
-
-	    // Prefix data with character count indicator.
-	    // The character count indicator is a string of bits that represents the
-	    // number of characters that are being encoded.
-	    // The character count indicator must be placed after the mode indicator
-	    // and must be a certain number of bits long, depending on the QR version
-	    // and data mode
-	    // @see {@link Mode.getCharCountIndicator}.
-	    buffer.put(data.getLength(), Mode.getCharCountIndicator(data.mode, version));
-
-	    // add binary data sequence to buffer
-	    data.write(buffer);
-	  });
-
-	  // Calculate required number of bits
-	  var totalCodewords = Utils.getSymbolTotalCodewords(version);
-	  var ecTotalCodewords = ECCode.getTotalCodewordsCount(version, errorCorrectionLevel);
-	  var dataTotalCodewordsBits = (totalCodewords - ecTotalCodewords) * 8;
-
-	  // Add a terminator.
-	  // If the bit string is shorter than the total number of required bits,
-	  // a terminator of up to four 0s must be added to the right side of the string.
-	  // If the bit string is more than four bits shorter than the required number of bits,
-	  // add four 0s to the end.
-	  if (buffer.getLengthInBits() + 4 <= dataTotalCodewordsBits) {
-	    buffer.put(0, 4);
-	  }
-
-	  // If the bit string is fewer than four bits shorter, add only the number of 0s that
-	  // are needed to reach the required number of bits.
-
-	  // After adding the terminator, if the number of bits in the string is not a multiple of 8,
-	  // pad the string on the right with 0s to make the string's length a multiple of 8.
-	  while (buffer.getLengthInBits() % 8 !== 0) {
-	    buffer.putBit(0);
-	  }
-
-	  // Add pad bytes if the string is still shorter than the total number of required bits.
-	  // Extend the buffer to fill the data capacity of the symbol corresponding to
-	  // the Version and Error Correction Level by adding the Pad Codewords 11101100 (0xEC)
-	  // and 00010001 (0x11) alternately.
-	  var remainingByte = (dataTotalCodewordsBits - buffer.getLengthInBits()) / 8;
-	  for (var i = 0; i < remainingByte; i++) {
-	    buffer.put(i % 2 ? 0x11 : 0xEC, 8);
-	  }
-
-	  return createCodewords(buffer, version, errorCorrectionLevel)
-	}
-
-	/**
-	 * Encode input data with Reed-Solomon and return codewords with
-	 * relative error correction bits
-	 *
-	 * @param  {BitBuffer} bitBuffer            Data to encode
-	 * @param  {Number}    version              QR Code version
-	 * @param  {ErrorCorrectionLevel} errorCorrectionLevel Error correction level
-	 * @return {Buffer}                         Buffer containing encoded codewords
-	 */
-	function createCodewords (bitBuffer, version, errorCorrectionLevel) {
-	  // Total codewords for this QR code version (Data + Error correction)
-	  var totalCodewords = Utils.getSymbolTotalCodewords(version);
-
-	  // Total number of error correction codewords
-	  var ecTotalCodewords = ECCode.getTotalCodewordsCount(version, errorCorrectionLevel);
-
-	  // Total number of data codewords
-	  var dataTotalCodewords = totalCodewords - ecTotalCodewords;
-
-	  // Total number of blocks
-	  var ecTotalBlocks = ECCode.getBlocksCount(version, errorCorrectionLevel);
-
-	  // Calculate how many blocks each group should contain
-	  var blocksInGroup2 = totalCodewords % ecTotalBlocks;
-	  var blocksInGroup1 = ecTotalBlocks - blocksInGroup2;
-
-	  var totalCodewordsInGroup1 = Math.floor(totalCodewords / ecTotalBlocks);
-
-	  var dataCodewordsInGroup1 = Math.floor(dataTotalCodewords / ecTotalBlocks);
-	  var dataCodewordsInGroup2 = dataCodewordsInGroup1 + 1;
-
-	  // Number of EC codewords is the same for both groups
-	  var ecCount = totalCodewordsInGroup1 - dataCodewordsInGroup1;
-
-	  // Initialize a Reed-Solomon encoder with a generator polynomial of degree ecCount
-	  var rs = new ReedSolomonEncoder(ecCount);
-
-	  var offset = 0;
-	  var dcData = new Array(ecTotalBlocks);
-	  var ecData = new Array(ecTotalBlocks);
-	  var maxDataSize = 0;
-	  var buffer = new Buffer(bitBuffer.buffer);
-
-	  // Divide the buffer into the required number of blocks
-	  for (var b = 0; b < ecTotalBlocks; b++) {
-	    var dataSize = b < blocksInGroup1 ? dataCodewordsInGroup1 : dataCodewordsInGroup2;
-
-	    // extract a block of data from buffer
-	    dcData[b] = buffer.slice(offset, offset + dataSize);
-
-	    // Calculate EC codewords for this data block
-	    ecData[b] = rs.encode(dcData[b]);
-
-	    offset += dataSize;
-	    maxDataSize = Math.max(maxDataSize, dataSize);
-	  }
-
-	  // Create final data
-	  // Interleave the data and error correction codewords from each block
-	  var data = new Buffer(totalCodewords);
-	  var index = 0;
-	  var i, r;
-
-	  // Add data codewords
-	  for (i = 0; i < maxDataSize; i++) {
-	    for (r = 0; r < ecTotalBlocks; r++) {
-	      if (i < dcData[r].length) {
-	        data[index++] = dcData[r][i];
-	      }
-	    }
-	  }
-
-	  // Apped EC codewords
-	  for (i = 0; i < ecCount; i++) {
-	    for (r = 0; r < ecTotalBlocks; r++) {
-	      data[index++] = ecData[r][i];
-	    }
-	  }
-
-	  return data
-	}
-
-	/**
-	 * Build QR Code symbol
-	 *
-	 * @param  {String} data                 Input string
-	 * @param  {Number} version              QR Code version
-	 * @param  {ErrorCorretionLevel} errorCorrectionLevel Error level
-	 * @param  {MaskPattern} maskPattern     Mask pattern
-	 * @return {Object}                      Object containing symbol data
-	 */
-	function createSymbol (data, version, errorCorrectionLevel, maskPattern) {
-	  var segments;
-
-	  if (isArray(data)) {
-	    segments = Segments.fromArray(data);
-	  } else if (typeof data === 'string') {
-	    var estimatedVersion = version;
-
-	    if (!estimatedVersion) {
-	      var rawSegments = Segments.rawSplit(data);
-
-	      // Estimate best version that can contain raw splitted segments
-	      estimatedVersion = Version.getBestVersionForData(rawSegments,
-	        errorCorrectionLevel);
-	    }
-
-	    // Build optimized segments
-	    // If estimated version is undefined, try with the highest version
-	    segments = Segments.fromString(data, estimatedVersion || 40);
-	  } else {
-	    throw new Error('Invalid data')
-	  }
-
-	  // Get the min version that can contain data
-	  var bestVersion = Version.getBestVersionForData(segments,
-	      errorCorrectionLevel);
-
-	  // If no version is found, data cannot be stored
-	  if (!bestVersion) {
-	    throw new Error('The amount of data is too big to be stored in a QR Code')
-	  }
-
-	  // If not specified, use min version as default
-	  if (!version) {
-	    version = bestVersion;
-
-	  // Check if the specified version can contain the data
-	  } else if (version < bestVersion) {
-	    throw new Error('\n' +
-	      'The chosen QR Code version cannot contain this amount of data.\n' +
-	      'Minimum version required to store current data is: ' + bestVersion + '.\n'
-	    )
-	  }
-
-	  var dataBits = createData(version, errorCorrectionLevel, segments);
-
-	  // Allocate matrix buffer
-	  var moduleCount = Utils.getSymbolSize(version);
-	  var modules = new BitMatrix(moduleCount);
-
-	  // Add function modules
-	  setupFinderPattern(modules, version);
-	  setupTimingPattern(modules);
-	  setupAlignmentPattern(modules, version);
-
-	  // Add temporary dummy bits for format info just to set them as reserved.
-	  // This is needed to prevent these bits from being masked by {@link MaskPattern.applyMask}
-	  // since the masking operation must be performed only on the encoding region.
-	  // These blocks will be replaced with correct values later in code.
-	  setupFormatInfo(modules, errorCorrectionLevel, 0);
-
-	  if (version >= 7) {
-	    setupVersionInfo(modules, version);
-	  }
-
-	  // Add data codewords
-	  setupData(modules, dataBits);
-
-	  if (isNaN(maskPattern)) {
-	    // Find best mask pattern
-	    maskPattern = MaskPattern.getBestMask(modules,
-	      setupFormatInfo.bind(null, modules, errorCorrectionLevel));
-	  }
-
-	  // Apply mask pattern
-	  MaskPattern.applyMask(maskPattern, modules);
-
-	  // Replace format info bits with correct values
-	  setupFormatInfo(modules, errorCorrectionLevel, maskPattern);
-
-	  return {
-	    modules: modules,
-	    version: version,
-	    errorCorrectionLevel: errorCorrectionLevel,
-	    maskPattern: maskPattern,
-	    segments: segments
-	  }
-	}
-
-	/**
-	 * QR Code
-	 *
-	 * @param {String | Array} data                 Input data
-	 * @param {Object} options                      Optional configurations
-	 * @param {Number} options.version              QR Code version
-	 * @param {String} options.errorCorrectionLevel Error correction level
-	 * @param {Function} options.toSJISFunc         Helper func to convert utf8 to sjis
-	 */
-	exports.create = function create (data, options) {
-	  if (typeof data === 'undefined' || data === '') {
-	    throw new Error('No input text')
-	  }
-
-	  var errorCorrectionLevel = ECLevel.M;
-	  var version;
-	  var mask;
-
-	  if (typeof options !== 'undefined') {
-	    // Use higher error correction level as default
-	    errorCorrectionLevel = ECLevel.from(options.errorCorrectionLevel, ECLevel.M);
-	    version = Version.from(options.version);
-	    mask = MaskPattern.from(options.maskPattern);
-
-	    if (options.toSJISFunc) {
-	      Utils.setToSJISFunction(options.toSJISFunc);
-	    }
-	  }
-
-	  return createSymbol(data, version, errorCorrectionLevel, mask)
-	};
-
-	},{"../utils/buffer":27,"./alignment-pattern":1,"./bit-buffer":3,"./bit-matrix":4,"./error-correction-code":6,"./error-correction-level":7,"./finder-pattern":8,"./format-info":9,"./mask-pattern":12,"./mode":13,"./reed-solomon-encoder":17,"./segments":19,"./utils":20,"./version":22,"isarray":30}],17:[function(require,module,exports){
-	var Buffer = require('../utils/buffer');
-	var Polynomial = require('./polynomial');
-
-	function ReedSolomonEncoder (degree) {
-	  this.genPoly = undefined;
-	  this.degree = degree;
-
-	  if (this.degree) this.initialize(this.degree);
-	}
-
-	/**
-	 * Initialize the encoder.
-	 * The input param should correspond to the number of error correction codewords.
-	 *
-	 * @param  {Number} degree
-	 */
-	ReedSolomonEncoder.prototype.initialize = function initialize (degree) {
-	  // create an irreducible generator polynomial
-	  this.degree = degree;
-	  this.genPoly = Polynomial.generateECPolynomial(this.degree);
-	};
-
-	/**
-	 * Encodes a chunk of data
-	 *
-	 * @param  {Buffer} data Buffer containing input data
-	 * @return {Buffer}      Buffer containing encoded data
-	 */
-	ReedSolomonEncoder.prototype.encode = function encode (data) {
-	  if (!this.genPoly) {
-	    throw new Error('Encoder not initialized')
-	  }
-
-	  // Calculate EC for this data block
-	  // extends data size to data+genPoly size
-	  var pad = new Buffer(this.degree);
-	  pad.fill(0);
-	  var paddedData = Buffer.concat([data, pad], data.length + this.degree);
-
-	  // The error correction codewords are the remainder after dividing the data codewords
-	  // by a generator polynomial
-	  var remainder = Polynomial.mod(paddedData, this.genPoly);
-
-	  // return EC data blocks (last n byte, where n is the degree of genPoly)
-	  // If coefficients number in remainder are less than genPoly degree,
-	  // pad with 0s to the left to reach the needed number of coefficients
-	  var start = this.degree - remainder.length;
-	  if (start > 0) {
-	    var buff = new Buffer(this.degree);
-	    buff.fill(0);
-	    remainder.copy(buff, start);
-
-	    return buff
-	  }
-
-	  return remainder
-	};
-
-	module.exports = ReedSolomonEncoder;
-
-	},{"../utils/buffer":27,"./polynomial":15}],18:[function(require,module,exports){
-	var numeric = '[0-9]+';
-	var alphanumeric = '[A-Z $%*+\\-./:]+';
-	var kanji = '(?:[u3000-u303F]|[u3040-u309F]|[u30A0-u30FF]|' +
-	  '[uFF00-uFFEF]|[u4E00-u9FAF]|[u2605-u2606]|[u2190-u2195]|u203B|' +
-	  '[u2010u2015u2018u2019u2025u2026u201Cu201Du2225u2260]|' +
-	  '[u0391-u0451]|[u00A7u00A8u00B1u00B4u00D7u00F7])+';
-	kanji = kanji.replace(/u/g, '\\u');
-
-	var byte = '(?:(?![A-Z0-9 $%*+\\-./:]|' + kanji + ')(?:.|[\r\n]))+';
-
-	exports.KANJI = new RegExp(kanji, 'g');
-	exports.BYTE_KANJI = new RegExp('[^A-Z0-9 $%*+\\-./:]+', 'g');
-	exports.BYTE = new RegExp(byte, 'g');
-	exports.NUMERIC = new RegExp(numeric, 'g');
-	exports.ALPHANUMERIC = new RegExp(alphanumeric, 'g');
-
-	var TEST_KANJI = new RegExp('^' + kanji + '$');
-	var TEST_NUMERIC = new RegExp('^' + numeric + '$');
-	var TEST_ALPHANUMERIC = new RegExp('^[A-Z0-9 $%*+\\-./:]+$');
-
-	exports.testKanji = function testKanji (str) {
-	  return TEST_KANJI.test(str)
-	};
-
-	exports.testNumeric = function testNumeric (str) {
-	  return TEST_NUMERIC.test(str)
-	};
-
-	exports.testAlphanumeric = function testAlphanumeric (str) {
-	  return TEST_ALPHANUMERIC.test(str)
-	};
-
-	},{}],19:[function(require,module,exports){
-	var Mode = require('./mode');
-	var NumericData = require('./numeric-data');
-	var AlphanumericData = require('./alphanumeric-data');
-	var ByteData = require('./byte-data');
-	var KanjiData = require('./kanji-data');
-	var Regex = require('./regex');
-	var Utils = require('./utils');
-	var dijkstra = require('dijkstrajs');
-
-	/**
-	 * Returns UTF8 byte length
-	 *
-	 * @param  {String} str Input string
-	 * @return {Number}     Number of byte
-	 */
-	function getStringByteLength (str) {
-	  return unescape(encodeURIComponent(str)).length
-	}
-
-	/**
-	 * Get a list of segments of the specified mode
-	 * from a string
-	 *
-	 * @param  {Mode}   mode Segment mode
-	 * @param  {String} str  String to process
-	 * @return {Array}       Array of object with segments data
-	 */
-	function getSegments (regex, mode, str) {
-	  var segments = [];
-	  var result;
-
-	  while ((result = regex.exec(str)) !== null) {
-	    segments.push({
-	      data: result[0],
-	      index: result.index,
-	      mode: mode,
-	      length: result[0].length
-	    });
-	  }
-
-	  return segments
-	}
-
-	/**
-	 * Extracts a series of segments with the appropriate
-	 * modes from a string
-	 *
-	 * @param  {String} dataStr Input string
-	 * @return {Array}          Array of object with segments data
-	 */
-	function getSegmentsFromString (dataStr) {
-	  var numSegs = getSegments(Regex.NUMERIC, Mode.NUMERIC, dataStr);
-	  var alphaNumSegs = getSegments(Regex.ALPHANUMERIC, Mode.ALPHANUMERIC, dataStr);
-	  var byteSegs;
-	  var kanjiSegs;
-
-	  if (Utils.isKanjiModeEnabled()) {
-	    byteSegs = getSegments(Regex.BYTE, Mode.BYTE, dataStr);
-	    kanjiSegs = getSegments(Regex.KANJI, Mode.KANJI, dataStr);
-	  } else {
-	    byteSegs = getSegments(Regex.BYTE_KANJI, Mode.BYTE, dataStr);
-	    kanjiSegs = [];
-	  }
-
-	  var segs = numSegs.concat(alphaNumSegs, byteSegs, kanjiSegs);
-
-	  return segs
-	    .sort(function (s1, s2) {
-	      return s1.index - s2.index
-	    })
-	    .map(function (obj) {
-	      return {
-	        data: obj.data,
-	        mode: obj.mode,
-	        length: obj.length
-	      }
-	    })
-	}
-
-	/**
-	 * Returns how many bits are needed to encode a string of
-	 * specified length with the specified mode
-	 *
-	 * @param  {Number} length String length
-	 * @param  {Mode} mode     Segment mode
-	 * @return {Number}        Bit length
-	 */
-	function getSegmentBitsLength (length, mode) {
-	  switch (mode) {
-	    case Mode.NUMERIC:
-	      return NumericData.getBitsLength(length)
-	    case Mode.ALPHANUMERIC:
-	      return AlphanumericData.getBitsLength(length)
-	    case Mode.KANJI:
-	      return KanjiData.getBitsLength(length)
-	    case Mode.BYTE:
-	      return ByteData.getBitsLength(length)
-	  }
-	}
-
-	/**
-	 * Merges adjacent segments which have the same mode
-	 *
-	 * @param  {Array} segs Array of object with segments data
-	 * @return {Array}      Array of object with segments data
-	 */
-	function mergeSegments (segs) {
-	  return segs.reduce(function (acc, curr) {
-	    var prevSeg = acc.length - 1 >= 0 ? acc[acc.length - 1] : null;
-	    if (prevSeg && prevSeg.mode === curr.mode) {
-	      acc[acc.length - 1].data += curr.data;
-	      return acc
-	    }
-
-	    acc.push(curr);
-	    return acc
-	  }, [])
-	}
-
-	/**
-	 * Generates a list of all possible nodes combination which
-	 * will be used to build a segments graph.
-	 *
-	 * Nodes are divided by groups. Each group will contain a list of all the modes
-	 * in which is possible to encode the given text.
-	 *
-	 * For example the text '12345' can be encoded as Numeric, Alphanumeric or Byte.
-	 * The group for '12345' will contain then 3 objects, one for each
-	 * possible encoding mode.
-	 *
-	 * Each node represents a possible segment.
-	 *
-	 * @param  {Array} segs Array of object with segments data
-	 * @return {Array}      Array of object with segments data
-	 */
-	function buildNodes (segs) {
-	  var nodes = [];
-	  for (var i = 0; i < segs.length; i++) {
-	    var seg = segs[i];
-
-	    switch (seg.mode) {
-	      case Mode.NUMERIC:
-	        nodes.push([seg,
-	          { data: seg.data, mode: Mode.ALPHANUMERIC, length: seg.length },
-	          { data: seg.data, mode: Mode.BYTE, length: seg.length }
-	        ]);
-	        break
-	      case Mode.ALPHANUMERIC:
-	        nodes.push([seg,
-	          { data: seg.data, mode: Mode.BYTE, length: seg.length }
-	        ]);
-	        break
-	      case Mode.KANJI:
-	        nodes.push([seg,
-	          { data: seg.data, mode: Mode.BYTE, length: getStringByteLength(seg.data) }
-	        ]);
-	        break
-	      case Mode.BYTE:
-	        nodes.push([
-	          { data: seg.data, mode: Mode.BYTE, length: getStringByteLength(seg.data) }
-	        ]);
-	    }
-	  }
-
-	  return nodes
-	}
-
-	/**
-	 * Builds a graph from a list of nodes.
-	 * All segments in each node group will be connected with all the segments of
-	 * the next group and so on.
-	 *
-	 * At each connection will be assigned a weight depending on the
-	 * segment's byte length.
-	 *
-	 * @param  {Array} nodes    Array of object with segments data
-	 * @param  {Number} version QR Code version
-	 * @return {Object}         Graph of all possible segments
-	 */
-	function buildGraph (nodes, version) {
-	  var table = {};
-	  var graph = {'start': {}};
-	  var prevNodeIds = ['start'];
-
-	  for (var i = 0; i < nodes.length; i++) {
-	    var nodeGroup = nodes[i];
-	    var currentNodeIds = [];
-
-	    for (var j = 0; j < nodeGroup.length; j++) {
-	      var node = nodeGroup[j];
-	      var key = '' + i + j;
-
-	      currentNodeIds.push(key);
-	      table[key] = { node: node, lastCount: 0 };
-	      graph[key] = {};
-
-	      for (var n = 0; n < prevNodeIds.length; n++) {
-	        var prevNodeId = prevNodeIds[n];
-
-	        if (table[prevNodeId] && table[prevNodeId].node.mode === node.mode) {
-	          graph[prevNodeId][key] =
-	            getSegmentBitsLength(table[prevNodeId].lastCount + node.length, node.mode) -
-	            getSegmentBitsLength(table[prevNodeId].lastCount, node.mode);
-
-	          table[prevNodeId].lastCount += node.length;
-	        } else {
-	          if (table[prevNodeId]) table[prevNodeId].lastCount = node.length;
-
-	          graph[prevNodeId][key] = getSegmentBitsLength(node.length, node.mode) +
-	            4 + Mode.getCharCountIndicator(node.mode, version); // switch cost
-	        }
-	      }
-	    }
-
-	    prevNodeIds = currentNodeIds;
-	  }
-
-	  for (n = 0; n < prevNodeIds.length; n++) {
-	    graph[prevNodeIds[n]]['end'] = 0;
-	  }
-
-	  return { map: graph, table: table }
-	}
-
-	/**
-	 * Builds a segment from a specified data and mode.
-	 * If a mode is not specified, the more suitable will be used.
-	 *
-	 * @param  {String} data             Input data
-	 * @param  {Mode | String} modesHint Data mode
-	 * @return {Segment}                 Segment
-	 */
-	function buildSingleSegment (data, modesHint) {
-	  var mode;
-	  var bestMode = Mode.getBestModeForData(data);
-
-	  mode = Mode.from(modesHint, bestMode);
-
-	  // Make sure data can be encoded
-	  if (mode !== Mode.BYTE && mode.bit < bestMode.bit) {
-	    throw new Error('"' + data + '"' +
-	      ' cannot be encoded with mode ' + Mode.toString(mode) +
-	      '.\n Suggested mode is: ' + Mode.toString(bestMode))
-	  }
-
-	  // Use Mode.BYTE if Kanji support is disabled
-	  if (mode === Mode.KANJI && !Utils.isKanjiModeEnabled()) {
-	    mode = Mode.BYTE;
-	  }
-
-	  switch (mode) {
-	    case Mode.NUMERIC:
-	      return new NumericData(data)
-
-	    case Mode.ALPHANUMERIC:
-	      return new AlphanumericData(data)
-
-	    case Mode.KANJI:
-	      return new KanjiData(data)
-
-	    case Mode.BYTE:
-	      return new ByteData(data)
-	  }
-	}
-
-	/**
-	 * Builds a list of segments from an array.
-	 * Array can contain Strings or Objects with segment's info.
-	 *
-	 * For each item which is a string, will be generated a segment with the given
-	 * string and the more appropriate encoding mode.
-	 *
-	 * For each item which is an object, will be generated a segment with the given
-	 * data and mode.
-	 * Objects must contain at least the property "data".
-	 * If property "mode" is not present, the more suitable mode will be used.
-	 *
-	 * @param  {Array} array Array of objects with segments data
-	 * @return {Array}       Array of Segments
-	 */
-	exports.fromArray = function fromArray (array) {
-	  return array.reduce(function (acc, seg) {
-	    if (typeof seg === 'string') {
-	      acc.push(buildSingleSegment(seg, null));
-	    } else if (seg.data) {
-	      acc.push(buildSingleSegment(seg.data, seg.mode));
-	    }
-
-	    return acc
-	  }, [])
-	};
-
-	/**
-	 * Builds an optimized sequence of segments from a string,
-	 * which will produce the shortest possible bitstream.
-	 *
-	 * @param  {String} data    Input string
-	 * @param  {Number} version QR Code version
-	 * @return {Array}          Array of segments
-	 */
-	exports.fromString = function fromString (data, version) {
-	  var segs = getSegmentsFromString(data, Utils.isKanjiModeEnabled());
-
-	  var nodes = buildNodes(segs);
-	  var graph = buildGraph(nodes, version);
-	  var path = dijkstra.find_path(graph.map, 'start', 'end');
-
-	  var optimizedSegs = [];
-	  for (var i = 1; i < path.length - 1; i++) {
-	    optimizedSegs.push(graph.table[path[i]].node);
-	  }
-
-	  return exports.fromArray(mergeSegments(optimizedSegs))
-	};
-
-	/**
-	 * Splits a string in various segments with the modes which
-	 * best represent their content.
-	 * The produced segments are far from being optimized.
-	 * The output of this function is only used to estimate a QR Code version
-	 * which may contain the data.
-	 *
-	 * @param  {string} data Input string
-	 * @return {Array}       Array of segments
-	 */
-	exports.rawSplit = function rawSplit (data) {
-	  return exports.fromArray(
-	    getSegmentsFromString(data, Utils.isKanjiModeEnabled())
-	  )
-	};
-
-	},{"./alphanumeric-data":2,"./byte-data":5,"./kanji-data":11,"./mode":13,"./numeric-data":14,"./regex":18,"./utils":20,"dijkstrajs":29}],20:[function(require,module,exports){
-	var toSJISFunction;
-	var CODEWORDS_COUNT = [
-	  0, // Not used
-	  26, 44, 70, 100, 134, 172, 196, 242, 292, 346,
-	  404, 466, 532, 581, 655, 733, 815, 901, 991, 1085,
-	  1156, 1258, 1364, 1474, 1588, 1706, 1828, 1921, 2051, 2185,
-	  2323, 2465, 2611, 2761, 2876, 3034, 3196, 3362, 3532, 3706
-	];
-
-	/**
-	 * Returns the QR Code size for the specified version
-	 *
-	 * @param  {Number} version QR Code version
-	 * @return {Number}         size of QR code
-	 */
-	exports.getSymbolSize = function getSymbolSize (version) {
-	  if (!version) throw new Error('"version" cannot be null or undefined')
-	  if (version < 1 || version > 40) throw new Error('"version" should be in range from 1 to 40')
-	  return version * 4 + 17
-	};
-
-	/**
-	 * Returns the total number of codewords used to store data and EC information.
-	 *
-	 * @param  {Number} version QR Code version
-	 * @return {Number}         Data length in bits
-	 */
-	exports.getSymbolTotalCodewords = function getSymbolTotalCodewords (version) {
-	  return CODEWORDS_COUNT[version]
-	};
-
-	/**
-	 * Encode data with Bose-Chaudhuri-Hocquenghem
-	 *
-	 * @param  {Number} data Value to encode
-	 * @return {Number}      Encoded value
-	 */
-	exports.getBCHDigit = function (data) {
-	  var digit = 0;
-
-	  while (data !== 0) {
-	    digit++;
-	    data >>>= 1;
-	  }
-
-	  return digit
-	};
-
-	exports.setToSJISFunction = function setToSJISFunction (f) {
-	  if (typeof f !== 'function') {
-	    throw new Error('"toSJISFunc" is not a valid function.')
-	  }
-
-	  toSJISFunction = f;
-	};
-
-	exports.isKanjiModeEnabled = function () {
-	  return typeof toSJISFunction !== 'undefined'
-	};
-
-	exports.toSJIS = function toSJIS (kanji) {
-	  return toSJISFunction(kanji)
-	};
-
-	},{}],21:[function(require,module,exports){
-	/**
-	 * Check if QR Code version is valid
-	 *
-	 * @param  {Number}  version QR Code version
-	 * @return {Boolean}         true if valid version, false otherwise
-	 */
-	exports.isValid = function isValid (version) {
-	  return !isNaN(version) && version >= 1 && version <= 40
-	};
-
-	},{}],22:[function(require,module,exports){
-	var Utils = require('./utils');
-	var ECCode = require('./error-correction-code');
-	var ECLevel = require('./error-correction-level');
-	var Mode = require('./mode');
-	var VersionCheck = require('./version-check');
-	var isArray = require('isarray');
-
-	// Generator polynomial used to encode version information
-	var G18 = (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0);
-	var G18_BCH = Utils.getBCHDigit(G18);
-
-	function getBestVersionForDataLength (mode, length, errorCorrectionLevel) {
-	  for (var currentVersion = 1; currentVersion <= 40; currentVersion++) {
-	    if (length <= exports.getCapacity(currentVersion, errorCorrectionLevel, mode)) {
-	      return currentVersion
-	    }
-	  }
-
-	  return undefined
-	}
-
-	function getReservedBitsCount (mode, version) {
-	  // Character count indicator + mode indicator bits
-	  return Mode.getCharCountIndicator(mode, version) + 4
-	}
-
-	function getTotalBitsFromDataArray (segments, version) {
-	  var totalBits = 0;
-
-	  segments.forEach(function (data) {
-	    var reservedBits = getReservedBitsCount(data.mode, version);
-	    totalBits += reservedBits + data.getBitsLength();
-	  });
-
-	  return totalBits
-	}
-
-	function getBestVersionForMixedData (segments, errorCorrectionLevel) {
-	  for (var currentVersion = 1; currentVersion <= 40; currentVersion++) {
-	    var length = getTotalBitsFromDataArray(segments, currentVersion);
-	    if (length <= exports.getCapacity(currentVersion, errorCorrectionLevel, Mode.MIXED)) {
-	      return currentVersion
-	    }
-	  }
-
-	  return undefined
-	}
-
-	/**
-	 * Returns version number from a value.
-	 * If value is not a valid version, returns defaultValue
-	 *
-	 * @param  {Number|String} value        QR Code version
-	 * @param  {Number}        defaultValue Fallback value
-	 * @return {Number}                     QR Code version number
-	 */
-	exports.from = function from (value, defaultValue) {
-	  if (VersionCheck.isValid(value)) {
-	    return parseInt(value, 10)
-	  }
-
-	  return defaultValue
-	};
-
-	/**
-	 * Returns how much data can be stored with the specified QR code version
-	 * and error correction level
-	 *
-	 * @param  {Number} version              QR Code version (1-40)
-	 * @param  {Number} errorCorrectionLevel Error correction level
-	 * @param  {Mode}   mode                 Data mode
-	 * @return {Number}                      Quantity of storable data
-	 */
-	exports.getCapacity = function getCapacity (version, errorCorrectionLevel, mode) {
-	  if (!VersionCheck.isValid(version)) {
-	    throw new Error('Invalid QR Code version')
-	  }
-
-	  // Use Byte mode as default
-	  if (typeof mode === 'undefined') mode = Mode.BYTE;
-
-	  // Total codewords for this QR code version (Data + Error correction)
-	  var totalCodewords = Utils.getSymbolTotalCodewords(version);
-
-	  // Total number of error correction codewords
-	  var ecTotalCodewords = ECCode.getTotalCodewordsCount(version, errorCorrectionLevel);
-
-	  // Total number of data codewords
-	  var dataTotalCodewordsBits = (totalCodewords - ecTotalCodewords) * 8;
-
-	  if (mode === Mode.MIXED) return dataTotalCodewordsBits
-
-	  var usableBits = dataTotalCodewordsBits - getReservedBitsCount(mode, version);
-
-	  // Return max number of storable codewords
-	  switch (mode) {
-	    case Mode.NUMERIC:
-	      return Math.floor((usableBits / 10) * 3)
-
-	    case Mode.ALPHANUMERIC:
-	      return Math.floor((usableBits / 11) * 2)
-
-	    case Mode.KANJI:
-	      return Math.floor(usableBits / 13)
-
-	    case Mode.BYTE:
-	    default:
-	      return Math.floor(usableBits / 8)
-	  }
-	};
-
-	/**
-	 * Returns the minimum version needed to contain the amount of data
-	 *
-	 * @param  {Segment} data                    Segment of data
-	 * @param  {Number} [errorCorrectionLevel=H] Error correction level
-	 * @param  {Mode} mode                       Data mode
-	 * @return {Number}                          QR Code version
-	 */
-	exports.getBestVersionForData = function getBestVersionForData (data, errorCorrectionLevel) {
-	  var seg;
-
-	  var ecl = ECLevel.from(errorCorrectionLevel, ECLevel.M);
-
-	  if (isArray(data)) {
-	    if (data.length > 1) {
-	      return getBestVersionForMixedData(data, ecl)
-	    }
-
-	    if (data.length === 0) {
-	      return 1
-	    }
-
-	    seg = data[0];
-	  } else {
-	    seg = data;
-	  }
-
-	  return getBestVersionForDataLength(seg.mode, seg.getLength(), ecl)
-	};
-
-	/**
-	 * Returns version information with relative error correction bits
-	 *
-	 * The version information is included in QR Code symbols of version 7 or larger.
-	 * It consists of an 18-bit sequence containing 6 data bits,
-	 * with 12 error correction bits calculated using the (18, 6) Golay code.
-	 *
-	 * @param  {Number} version QR Code version
-	 * @return {Number}         Encoded version info bits
-	 */
-	exports.getEncodedBits = function getEncodedBits (version) {
-	  if (!VersionCheck.isValid(version) || version < 7) {
-	    throw new Error('Invalid QR Code version')
-	  }
-
-	  var d = version << 12;
-
-	  while (Utils.getBCHDigit(d) - G18_BCH >= 0) {
-	    d ^= (G18 << (Utils.getBCHDigit(d) - G18_BCH));
-	  }
-
-	  return (version << 12) | d
-	};
-
-	},{"./error-correction-code":6,"./error-correction-level":7,"./mode":13,"./utils":20,"./version-check":21,"isarray":30}],23:[function(require,module,exports){
-	var canPromise = require('can-promise');
-	var QRCode = require('./core/qrcode');
-	var CanvasRenderer = require('./renderer/canvas');
-	var SvgRenderer = require('./renderer/svg-tag.js');
-
-	function renderCanvas (renderFunc, canvas, text, opts, cb) {
-	  var args = [].slice.call(arguments, 1);
-	  var argsNum = args.length;
-	  var isLastArgCb = typeof args[argsNum - 1] === 'function';
-
-	  if (!isLastArgCb && !canPromise()) {
-	    throw new Error('Callback required as last argument')
-	  }
-
-	  if (isLastArgCb) {
-	    if (argsNum < 2) {
-	      throw new Error('Too few arguments provided')
-	    }
-
-	    if (argsNum === 2) {
-	      cb = text;
-	      text = canvas;
-	      canvas = opts = undefined;
-	    } else if (argsNum === 3) {
-	      if (canvas.getContext && typeof cb === 'undefined') {
-	        cb = opts;
-	        opts = undefined;
-	      } else {
-	        cb = opts;
-	        opts = text;
-	        text = canvas;
-	        canvas = undefined;
-	      }
-	    }
-	  } else {
-	    if (argsNum < 1) {
-	      throw new Error('Too few arguments provided')
-	    }
-
-	    if (argsNum === 1) {
-	      text = canvas;
-	      canvas = opts = undefined;
-	    } else if (argsNum === 2 && !canvas.getContext) {
-	      opts = text;
-	      text = canvas;
-	      canvas = undefined;
-	    }
-
-	    return new Promise(function (resolve, reject) {
-	      try {
-	        var data = QRCode.create(text, opts);
-	        resolve(renderFunc(data, canvas, opts));
-	      } catch (e) {
-	        reject(e);
-	      }
-	    })
-	  }
-
-	  try {
-	    var data = QRCode.create(text, opts);
-	    cb(null, renderFunc(data, canvas, opts));
-	  } catch (e) {
-	    cb(e);
-	  }
-	}
-
-	exports.create = QRCode.create;
-	exports.toCanvas = renderCanvas.bind(null, CanvasRenderer.render);
-	exports.toDataURL = renderCanvas.bind(null, CanvasRenderer.renderToDataURL);
-
-	// only svg for now.
-	exports.toString = renderCanvas.bind(null, function (data, _, opts) {
-	  return SvgRenderer.render(data, opts)
-	});
-
-	},{"./core/qrcode":16,"./renderer/canvas":24,"./renderer/svg-tag.js":25,"can-promise":28}],24:[function(require,module,exports){
-	var Utils = require('./utils');
-
-	function clearCanvas (ctx, canvas, size) {
-	  ctx.clearRect(0, 0, canvas.width, canvas.height);
-
-	  if (!canvas.style) canvas.style = {};
-	  canvas.height = size;
-	  canvas.width = size;
-	  canvas.style.height = size + 'px';
-	  canvas.style.width = size + 'px';
-	}
-
-	function getCanvasElement () {
-	  try {
-	    return document.createElement('canvas')
-	  } catch (e) {
-	    throw new Error('You need to specify a canvas element')
-	  }
-	}
-
-	exports.render = function render (qrData, canvas, options) {
-	  var opts = options;
-	  var canvasEl = canvas;
-
-	  if (typeof opts === 'undefined' && (!canvas || !canvas.getContext)) {
-	    opts = canvas;
-	    canvas = undefined;
-	  }
-
-	  if (!canvas) {
-	    canvasEl = getCanvasElement();
-	  }
-
-	  opts = Utils.getOptions(opts);
-	  var size = Utils.getImageWidth(qrData.modules.size, opts);
-
-	  var ctx = canvasEl.getContext('2d');
-	  var image = ctx.createImageData(size, size);
-	  Utils.qrToImageData(image.data, qrData, opts);
-
-	  clearCanvas(ctx, canvasEl, size);
-	  ctx.putImageData(image, 0, 0);
-
-	  return canvasEl
-	};
-
-	exports.renderToDataURL = function renderToDataURL (qrData, canvas, options) {
-	  var opts = options;
-
-	  if (typeof opts === 'undefined' && (!canvas || !canvas.getContext)) {
-	    opts = canvas;
-	    canvas = undefined;
-	  }
-
-	  if (!opts) opts = {};
-
-	  var canvasEl = exports.render(qrData, canvas, opts);
-
-	  var type = opts.type || 'image/png';
-	  var rendererOpts = opts.rendererOpts || {};
-
-	  return canvasEl.toDataURL(type, rendererOpts.quality)
-	};
-
-	},{"./utils":26}],25:[function(require,module,exports){
-	var Utils = require('./utils');
-
-	function getColorAttrib (color, attrib) {
-	  var alpha = color.a / 255;
-	  var str = attrib + '="' + color.hex + '"';
-
-	  return alpha < 1
-	    ? str + ' ' + attrib + '-opacity="' + alpha.toFixed(2).slice(1) + '"'
-	    : str
-	}
-
-	function svgCmd (cmd, x, y) {
-	  var str = cmd + x;
-	  if (typeof y !== 'undefined') str += ' ' + y;
-
-	  return str
-	}
-
-	function qrToPath (data, size, margin) {
-	  var path = '';
-	  var moveBy = 0;
-	  var newRow = false;
-	  var lineLength = 0;
-
-	  for (var i = 0; i < data.length; i++) {
-	    var col = Math.floor(i % size);
-	    var row = Math.floor(i / size);
-
-	    if (!col && !newRow) newRow = true;
-
-	    if (data[i]) {
-	      lineLength++;
-
-	      if (!(i > 0 && col > 0 && data[i - 1])) {
-	        path += newRow
-	          ? svgCmd('M', col + margin, 0.5 + row + margin)
-	          : svgCmd('m', moveBy, 0);
-
-	        moveBy = 0;
-	        newRow = false;
-	      }
-
-	      if (!(col + 1 < size && data[i + 1])) {
-	        path += svgCmd('h', lineLength);
-	        lineLength = 0;
-	      }
-	    } else {
-	      moveBy++;
-	    }
-	  }
-
-	  return path
-	}
-
-	exports.render = function render (qrData, options, cb) {
-	  var opts = Utils.getOptions(options);
-	  var size = qrData.modules.size;
-	  var data = qrData.modules.data;
-	  var qrcodesize = size + opts.margin * 2;
-
-	  var bg = !opts.color.light.a
-	    ? ''
-	    : '<path ' + getColorAttrib(opts.color.light, 'fill') +
-	      ' d="M0 0h' + qrcodesize + 'v' + qrcodesize + 'H0z"/>';
-
-	  var path =
-	    '<path ' + getColorAttrib(opts.color.dark, 'stroke') +
-	    ' d="' + qrToPath(data, size, opts.margin) + '"/>';
-
-	  var viewBox = 'viewBox="' + '0 0 ' + qrcodesize + ' ' + qrcodesize + '"';
-
-	  var width = !opts.width ? '' : 'width="' + opts.width + '" height="' + opts.width + '" ';
-
-	  var svgTag = '<svg xmlns="http://www.w3.org/2000/svg" ' + width + viewBox + ' shape-rendering="crispEdges">' + bg + path + '</svg>\n';
-
-	  if (typeof cb === 'function') {
-	    cb(null, svgTag);
-	  }
-
-	  return svgTag
-	};
-
-	},{"./utils":26}],26:[function(require,module,exports){
-	function hex2rgba (hex) {
-	  if (typeof hex !== 'string') {
-	    throw new Error('Color should be defined as hex string')
-	  }
-
-	  var hexCode = hex.slice().replace('#', '').split('');
-	  if (hexCode.length < 3 || hexCode.length === 5 || hexCode.length > 8) {
-	    throw new Error('Invalid hex color: ' + hex)
-	  }
-
-	  // Convert from short to long form (fff -> ffffff)
-	  if (hexCode.length === 3 || hexCode.length === 4) {
-	    hexCode = Array.prototype.concat.apply([], hexCode.map(function (c) {
-	      return [c, c]
-	    }));
-	  }
-
-	  // Add default alpha value
-	  if (hexCode.length === 6) hexCode.push('F', 'F');
-
-	  var hexValue = parseInt(hexCode.join(''), 16);
-
-	  return {
-	    r: (hexValue >> 24) & 255,
-	    g: (hexValue >> 16) & 255,
-	    b: (hexValue >> 8) & 255,
-	    a: hexValue & 255,
-	    hex: '#' + hexCode.slice(0, 6).join('')
-	  }
-	}
-
-	exports.getOptions = function getOptions (options) {
-	  if (!options) options = {};
-	  if (!options.color) options.color = {};
-
-	  var margin = typeof options.margin === 'undefined' ||
-	    options.margin === null ||
-	    options.margin < 0 ? 4 : options.margin;
-
-	  var width = options.width && options.width >= 21 ? options.width : undefined;
-	  var scale = options.scale || 4;
-
-	  return {
-	    width: width,
-	    scale: width ? 4 : scale,
-	    margin: margin,
-	    color: {
-	      dark: hex2rgba(options.color.dark || '#000000ff'),
-	      light: hex2rgba(options.color.light || '#ffffffff')
-	    },
-	    type: options.type,
-	    rendererOpts: options.rendererOpts || {}
-	  }
-	};
-
-	exports.getScale = function getScale (qrSize, opts) {
-	  return opts.width && opts.width >= qrSize + opts.margin * 2
-	    ? opts.width / (qrSize + opts.margin * 2)
-	    : opts.scale
-	};
-
-	exports.getImageWidth = function getImageWidth (qrSize, opts) {
-	  var scale = exports.getScale(qrSize, opts);
-	  return Math.floor((qrSize + opts.margin * 2) * scale)
-	};
-
-	exports.qrToImageData = function qrToImageData (imgData, qr, opts) {
-	  var size = qr.modules.size;
-	  var data = qr.modules.data;
-	  var scale = exports.getScale(size, opts);
-	  var symbolSize = Math.floor((size + opts.margin * 2) * scale);
-	  var scaledMargin = opts.margin * scale;
-	  var palette = [opts.color.light, opts.color.dark];
-
-	  for (var i = 0; i < symbolSize; i++) {
-	    for (var j = 0; j < symbolSize; j++) {
-	      var posDst = (i * symbolSize + j) * 4;
-	      var pxColor = opts.color.light;
-
-	      if (i >= scaledMargin && j >= scaledMargin &&
-	        i < symbolSize - scaledMargin && j < symbolSize - scaledMargin) {
-	        var iSrc = Math.floor((i - scaledMargin) / scale);
-	        var jSrc = Math.floor((j - scaledMargin) / scale);
-	        pxColor = palette[data[iSrc * size + jSrc] ? 1 : 0];
-	      }
-
-	      imgData[posDst++] = pxColor.r;
-	      imgData[posDst++] = pxColor.g;
-	      imgData[posDst++] = pxColor.b;
-	      imgData[posDst] = pxColor.a;
-	    }
-	  }
-	};
-
-	},{}],27:[function(require,module,exports){
-
-	var isArray = require('isarray');
-
-	function typedArraySupport () {
-	  // Can typed array instances be augmented?
-	  try {
-	    var arr = new Uint8Array(1);
-	    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }};
-	    return arr.foo() === 42
-	  } catch (e) {
-	    return false
-	  }
-	}
-
-	Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport();
-
-	var K_MAX_LENGTH = Buffer.TYPED_ARRAY_SUPPORT
-	    ? 0x7fffffff
-	    : 0x3fffffff;
-
-	function Buffer (arg, offset, length) {
-	  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
-	    return new Buffer(arg, offset, length)
-	  }
-
-	  if (typeof arg === 'number') {
-	    return allocUnsafe(this, arg)
-	  }
-
-	  return from(this, arg, offset, length)
-	}
-
-	if (Buffer.TYPED_ARRAY_SUPPORT) {
-	  Buffer.prototype.__proto__ = Uint8Array.prototype;
-	  Buffer.__proto__ = Uint8Array;
-
-	  // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
-	  if (typeof Symbol !== 'undefined' && Symbol.species &&
-	      Buffer[Symbol.species] === Buffer) {
-	    Object.defineProperty(Buffer, Symbol.species, {
-	      value: null,
-	      configurable: true,
-	      enumerable: false,
-	      writable: false
-	    });
-	  }
-	}
-
-	function checked (length) {
-	  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
-	  // length is NaN (which is otherwise coerced to zero.)
-	  if (length >= K_MAX_LENGTH) {
-	    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
-	                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
-	  }
-	  return length | 0
-	}
-
-	function isnan (val) {
-	  return val !== val // eslint-disable-line no-self-compare
-	}
-
-	function createBuffer (that, length) {
-	  var buf;
-	  if (Buffer.TYPED_ARRAY_SUPPORT) {
-	    buf = new Uint8Array(length);
-	    buf.__proto__ = Buffer.prototype;
-	  } else {
-	    // Fallback: Return an object instance of the Buffer class
-	    buf = that;
-	    if (buf === null) {
-	      buf = new Buffer(length);
-	    }
-	    buf.length = length;
-	  }
-
-	  return buf
-	}
-
-	function allocUnsafe (that, size) {
-	  var buf = createBuffer(that, size < 0 ? 0 : checked(size) | 0);
-
-	  if (!Buffer.TYPED_ARRAY_SUPPORT) {
-	    for (var i = 0; i < size; ++i) {
-	      buf[i] = 0;
-	    }
-	  }
-
-	  return buf
-	}
-
-	function fromString (that, string) {
-	  var length = byteLength(string) | 0;
-	  var buf = createBuffer(that, length);
-
-	  var actual = buf.write(string);
-
-	  if (actual !== length) {
-	    // Writing a hex string, for example, that contains invalid characters will
-	    // cause everything after the first invalid character to be ignored. (e.g.
-	    // 'abxxcd' will be treated as 'ab')
-	    buf = buf.slice(0, actual);
-	  }
-
-	  return buf
-	}
-
-	function fromArrayLike (that, array) {
-	  var length = array.length < 0 ? 0 : checked(array.length) | 0;
-	  var buf = createBuffer(that, length);
-	  for (var i = 0; i < length; i += 1) {
-	    buf[i] = array[i] & 255;
-	  }
-	  return buf
-	}
-
-	function fromArrayBuffer (that, array, byteOffset, length) {
-	  if (byteOffset < 0 || array.byteLength < byteOffset) {
-	    throw new RangeError('\'offset\' is out of bounds')
-	  }
-
-	  if (array.byteLength < byteOffset + (length || 0)) {
-	    throw new RangeError('\'length\' is out of bounds')
-	  }
-
-	  var buf;
-	  if (byteOffset === undefined && length === undefined) {
-	    buf = new Uint8Array(array);
-	  } else if (length === undefined) {
-	    buf = new Uint8Array(array, byteOffset);
-	  } else {
-	    buf = new Uint8Array(array, byteOffset, length);
-	  }
-
-	  if (Buffer.TYPED_ARRAY_SUPPORT) {
-	    // Return an augmented `Uint8Array` instance, for best performance
-	    buf.__proto__ = Buffer.prototype;
-	  } else {
-	    // Fallback: Return an object instance of the Buffer class
-	    buf = fromArrayLike(that, buf);
-	  }
-
-	  return buf
-	}
-
-	function fromObject (that, obj) {
-	  if (Buffer.isBuffer(obj)) {
-	    var len = checked(obj.length) | 0;
-	    var buf = createBuffer(that, len);
-
-	    if (buf.length === 0) {
-	      return buf
-	    }
-
-	    obj.copy(buf, 0, 0, len);
-	    return buf
-	  }
-
-	  if (obj) {
-	    if ((typeof ArrayBuffer !== 'undefined' &&
-	        obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
-	      if (typeof obj.length !== 'number' || isnan(obj.length)) {
-	        return createBuffer(that, 0)
-	      }
-	      return fromArrayLike(that, obj)
-	    }
-
-	    if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
-	      return fromArrayLike(that, obj.data)
-	    }
-	  }
-
-	  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
-	}
-
-	function utf8ToBytes (string, units) {
-	  units = units || Infinity;
-	  var codePoint;
-	  var length = string.length;
-	  var leadSurrogate = null;
-	  var bytes = [];
-
-	  for (var i = 0; i < length; ++i) {
-	    codePoint = string.charCodeAt(i);
-
-	    // is surrogate component
-	    if (codePoint > 0xD7FF && codePoint < 0xE000) {
-	      // last char was a lead
-	      if (!leadSurrogate) {
-	        // no lead yet
-	        if (codePoint > 0xDBFF) {
-	          // unexpected trail
-	          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
-	          continue
-	        } else if (i + 1 === length) {
-	          // unpaired lead
-	          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
-	          continue
-	        }
-
-	        // valid lead
-	        leadSurrogate = codePoint;
-
-	        continue
-	      }
-
-	      // 2 leads in a row
-	      if (codePoint < 0xDC00) {
-	        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
-	        leadSurrogate = codePoint;
-	        continue
-	      }
-
-	      // valid surrogate pair
-	      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000;
-	    } else if (leadSurrogate) {
-	      // valid bmp char, but last char was a lead
-	      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);
-	    }
-
-	    leadSurrogate = null;
-
-	    // encode utf8
-	    if (codePoint < 0x80) {
-	      if ((units -= 1) < 0) break
-	      bytes.push(codePoint);
-	    } else if (codePoint < 0x800) {
-	      if ((units -= 2) < 0) break
-	      bytes.push(
-	        codePoint >> 0x6 | 0xC0,
-	        codePoint & 0x3F | 0x80
-	      );
-	    } else if (codePoint < 0x10000) {
-	      if ((units -= 3) < 0) break
-	      bytes.push(
-	        codePoint >> 0xC | 0xE0,
-	        codePoint >> 0x6 & 0x3F | 0x80,
-	        codePoint & 0x3F | 0x80
-	      );
-	    } else if (codePoint < 0x110000) {
-	      if ((units -= 4) < 0) break
-	      bytes.push(
-	        codePoint >> 0x12 | 0xF0,
-	        codePoint >> 0xC & 0x3F | 0x80,
-	        codePoint >> 0x6 & 0x3F | 0x80,
-	        codePoint & 0x3F | 0x80
-	      );
-	    } else {
-	      throw new Error('Invalid code point')
-	    }
-	  }
-
-	  return bytes
-	}
-
-	function byteLength (string) {
-	  if (Buffer.isBuffer(string)) {
-	    return string.length
-	  }
-	  if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
-	      (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
-	    return string.byteLength
-	  }
-	  if (typeof string !== 'string') {
-	    string = '' + string;
-	  }
-
-	  var len = string.length;
-	  if (len === 0) return 0
-
-	  return utf8ToBytes(string).length
-	}
-
-	function blitBuffer (src, dst, offset, length) {
-	  for (var i = 0; i < length; ++i) {
-	    if ((i + offset >= dst.length) || (i >= src.length)) break
-	    dst[i + offset] = src[i];
-	  }
-	  return i
-	}
-
-	function utf8Write (buf, string, offset, length) {
-	  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
-	}
-
-	function from (that, value, offset, length) {
-	  if (typeof value === 'number') {
-	    throw new TypeError('"value" argument must not be a number')
-	  }
-
-	  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
-	    return fromArrayBuffer(that, value, offset, length)
-	  }
-
-	  if (typeof value === 'string') {
-	    return fromString(that, value, offset)
-	  }
-
-	  return fromObject(that, value)
-	}
-
-	Buffer.prototype.write = function write (string, offset, length) {
-	  // Buffer#write(string)
-	  if (offset === undefined) {
-	    length = this.length;
-	    offset = 0;
-	  // Buffer#write(string, encoding)
-	  } else if (length === undefined && typeof offset === 'string') {
-	    length = this.length;
-	    offset = 0;
-	  // Buffer#write(string, offset[, length])
-	  } else if (isFinite(offset)) {
-	    offset = offset | 0;
-	    if (isFinite(length)) {
-	      length = length | 0;
-	    } else {
-	      length = undefined;
-	    }
-	  }
-
-	  var remaining = this.length - offset;
-	  if (length === undefined || length > remaining) length = remaining;
-
-	  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
-	    throw new RangeError('Attempt to write outside buffer bounds')
-	  }
-
-	  return utf8Write(this, string, offset, length)
-	};
-
-	Buffer.prototype.slice = function slice (start, end) {
-	  var len = this.length;
-	  start = ~~start;
-	  end = end === undefined ? len : ~~end;
-
-	  if (start < 0) {
-	    start += len;
-	    if (start < 0) start = 0;
-	  } else if (start > len) {
-	    start = len;
-	  }
-
-	  if (end < 0) {
-	    end += len;
-	    if (end < 0) end = 0;
-	  } else if (end > len) {
-	    end = len;
-	  }
-
-	  if (end < start) end = start;
-
-	  var newBuf;
-	  if (Buffer.TYPED_ARRAY_SUPPORT) {
-	    newBuf = this.subarray(start, end);
-	    // Return an augmented `Uint8Array` instance
-	    newBuf.__proto__ = Buffer.prototype;
-	  } else {
-	    var sliceLen = end - start;
-	    newBuf = new Buffer(sliceLen, undefined);
-	    for (var i = 0; i < sliceLen; ++i) {
-	      newBuf[i] = this[i + start];
-	    }
-	  }
-
-	  return newBuf
-	};
-
-	Buffer.prototype.copy = function copy (target, targetStart, start, end) {
-	  if (!start) start = 0;
-	  if (!end && end !== 0) end = this.length;
-	  if (targetStart >= target.length) targetStart = target.length;
-	  if (!targetStart) targetStart = 0;
-	  if (end > 0 && end < start) end = start;
-
-	  // Copy 0 bytes; we're done
-	  if (end === start) return 0
-	  if (target.length === 0 || this.length === 0) return 0
-
-	  // Fatal error conditions
-	  if (targetStart < 0) {
-	    throw new RangeError('targetStart out of bounds')
-	  }
-	  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
-	  if (end < 0) throw new RangeError('sourceEnd out of bounds')
-
-	  // Are we oob?
-	  if (end > this.length) end = this.length;
-	  if (target.length - targetStart < end - start) {
-	    end = target.length - targetStart + start;
-	  }
-
-	  var len = end - start;
-	  var i;
-
-	  if (this === target && start < targetStart && targetStart < end) {
-	    // descending copy from end
-	    for (i = len - 1; i >= 0; --i) {
-	      target[i + targetStart] = this[i + start];
-	    }
-	  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
-	    // ascending copy from start
-	    for (i = 0; i < len; ++i) {
-	      target[i + targetStart] = this[i + start];
-	    }
-	  } else {
-	    Uint8Array.prototype.set.call(
-	      target,
-	      this.subarray(start, start + len),
-	      targetStart
-	    );
-	  }
-
-	  return len
-	};
-
-	Buffer.prototype.fill = function fill (val, start, end) {
-	  // Handle string cases:
-	  if (typeof val === 'string') {
-	    if (typeof start === 'string') {
-	      start = 0;
-	      end = this.length;
-	    } else if (typeof end === 'string') {
-	      end = this.length;
-	    }
-	    if (val.length === 1) {
-	      var code = val.charCodeAt(0);
-	      if (code < 256) {
-	        val = code;
-	      }
-	    }
-	  } else if (typeof val === 'number') {
-	    val = val & 255;
-	  }
-
-	  // Invalid ranges are not set to a default, so can range check early.
-	  if (start < 0 || this.length < start || this.length < end) {
-	    throw new RangeError('Out of range index')
-	  }
-
-	  if (end <= start) {
-	    return this
-	  }
-
-	  start = start >>> 0;
-	  end = end === undefined ? this.length : end >>> 0;
-
-	  if (!val) val = 0;
-
-	  var i;
-	  if (typeof val === 'number') {
-	    for (i = start; i < end; ++i) {
-	      this[i] = val;
-	    }
-	  } else {
-	    var bytes = Buffer.isBuffer(val)
-	      ? val
-	      : new Buffer(val);
-	    var len = bytes.length;
-	    for (i = 0; i < end - start; ++i) {
-	      this[i + start] = bytes[i % len];
-	    }
-	  }
-
-	  return this
-	};
-
-	Buffer.concat = function concat (list, length) {
-	  if (!isArray(list)) {
-	    throw new TypeError('"list" argument must be an Array of Buffers')
-	  }
-
-	  if (list.length === 0) {
-	    return createBuffer(null, 0)
-	  }
-
-	  var i;
-	  if (length === undefined) {
-	    length = 0;
-	    for (i = 0; i < list.length; ++i) {
-	      length += list[i].length;
-	    }
-	  }
-
-	  var buffer = allocUnsafe(null, length);
-	  var pos = 0;
-	  for (i = 0; i < list.length; ++i) {
-	    var buf = list[i];
-	    if (!Buffer.isBuffer(buf)) {
-	      throw new TypeError('"list" argument must be an Array of Buffers')
-	    }
-	    buf.copy(buffer, pos);
-	    pos += buf.length;
-	  }
-	  return buffer
-	};
-
-	Buffer.byteLength = byteLength;
-
-	Buffer.prototype._isBuffer = true;
-	Buffer.isBuffer = function isBuffer (b) {
-	  return !!(b != null && b._isBuffer)
-	};
-
-	module.exports = Buffer;
-
-	},{"isarray":30}],28:[function(require,module,exports){
-
-	var G = require('window-or-global');
-
-	module.exports = function() {
-	  return (
-	    typeof G.Promise === 'function' &&
-	    typeof G.Promise.prototype.then === 'function'
-	  )
-	};
-
-	},{"window-or-global":31}],29:[function(require,module,exports){
-
-	/******************************************************************************
-	 * Created 2008-08-19.
-	 *
-	 * Dijkstra path-finding functions. Adapted from the Dijkstar Python project.
-	 *
-	 * Copyright (C) 2008
-	 *   Wyatt Baldwin <self@wyattbaldwin.com>
-	 *   All rights reserved
-	 *
-	 * Licensed under the MIT license.
-	 *
-	 *   http://www.opensource.org/licenses/mit-license.php
-	 *
-	 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-	 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-	 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-	 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-	 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-	 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-	 * THE SOFTWARE.
-	 *****************************************************************************/
-	var dijkstra = {
-	  single_source_shortest_paths: function(graph, s, d) {
-	    // Predecessor map for each node that has been encountered.
-	    // node ID => predecessor node ID
-	    var predecessors = {};
-
-	    // Costs of shortest paths from s to all nodes encountered.
-	    // node ID => cost
-	    var costs = {};
-	    costs[s] = 0;
-
-	    // Costs of shortest paths from s to all nodes encountered; differs from
-	    // `costs` in that it provides easy access to the node that currently has
-	    // the known shortest path from s.
-	    // XXX: Do we actually need both `costs` and `open`?
-	    var open = dijkstra.PriorityQueue.make();
-	    open.push(s, 0);
-
-	    var closest,
-	        u, v,
-	        cost_of_s_to_u,
-	        adjacent_nodes,
-	        cost_of_e,
-	        cost_of_s_to_u_plus_cost_of_e,
-	        cost_of_s_to_v,
-	        first_visit;
-	    while (!open.empty()) {
-	      // In the nodes remaining in graph that have a known cost from s,
-	      // find the node, u, that currently has the shortest path from s.
-	      closest = open.pop();
-	      u = closest.value;
-	      cost_of_s_to_u = closest.cost;
-
-	      // Get nodes adjacent to u...
-	      adjacent_nodes = graph[u] || {};
-
-	      // ...and explore the edges that connect u to those nodes, updating
-	      // the cost of the shortest paths to any or all of those nodes as
-	      // necessary. v is the node across the current edge from u.
-	      for (v in adjacent_nodes) {
-	        if (adjacent_nodes.hasOwnProperty(v)) {
-	          // Get the cost of the edge running from u to v.
-	          cost_of_e = adjacent_nodes[v];
-
-	          // Cost of s to u plus the cost of u to v across e--this is *a*
-	          // cost from s to v that may or may not be less than the current
-	          // known cost to v.
-	          cost_of_s_to_u_plus_cost_of_e = cost_of_s_to_u + cost_of_e;
-
-	          // If we haven't visited v yet OR if the current known cost from s to
-	          // v is greater than the new cost we just found (cost of s to u plus
-	          // cost of u to v across e), update v's cost in the cost list and
-	          // update v's predecessor in the predecessor list (it's now u).
-	          cost_of_s_to_v = costs[v];
-	          first_visit = (typeof costs[v] === 'undefined');
-	          if (first_visit || cost_of_s_to_v > cost_of_s_to_u_plus_cost_of_e) {
-	            costs[v] = cost_of_s_to_u_plus_cost_of_e;
-	            open.push(v, cost_of_s_to_u_plus_cost_of_e);
-	            predecessors[v] = u;
-	          }
-	        }
-	      }
-	    }
-
-	    if (typeof d !== 'undefined' && typeof costs[d] === 'undefined') {
-	      var msg = ['Could not find a path from ', s, ' to ', d, '.'].join('');
-	      throw new Error(msg);
-	    }
-
-	    return predecessors;
-	  },
-
-	  extract_shortest_path_from_predecessor_list: function(predecessors, d) {
-	    var nodes = [];
-	    var u = d;
-	    var predecessor;
-	    while (u) {
-	      nodes.push(u);
-	      predecessor = predecessors[u];
-	      u = predecessors[u];
-	    }
-	    nodes.reverse();
-	    return nodes;
-	  },
-
-	  find_path: function(graph, s, d) {
-	    var predecessors = dijkstra.single_source_shortest_paths(graph, s, d);
-	    return dijkstra.extract_shortest_path_from_predecessor_list(
-	      predecessors, d);
-	  },
-
-	  /**
-	   * A very naive priority queue implementation.
-	   */
-	  PriorityQueue: {
-	    make: function (opts) {
-	      var T = dijkstra.PriorityQueue,
-	          t = {},
-	          key;
-	      opts = opts || {};
-	      for (key in T) {
-	        if (T.hasOwnProperty(key)) {
-	          t[key] = T[key];
-	        }
-	      }
-	      t.queue = [];
-	      t.sorter = opts.sorter || T.default_sorter;
-	      return t;
-	    },
-
-	    default_sorter: function (a, b) {
-	      return a.cost - b.cost;
-	    },
-
-	    /**
-	     * Add a new item to the queue and ensure the highest priority element
-	     * is at the front of the queue.
-	     */
-	    push: function (value, cost) {
-	      var item = {value: value, cost: cost};
-	      this.queue.push(item);
-	      this.queue.sort(this.sorter);
-	    },
-
-	    /**
-	     * Return the highest priority element in the queue.
-	     */
-	    pop: function () {
-	      return this.queue.shift();
-	    },
-
-	    empty: function () {
-	      return this.queue.length === 0;
-	    }
-	  }
-	};
-
-
-	// node.js module exports
-	if (typeof module !== 'undefined') {
-	  module.exports = dijkstra;
-	}
-
-	},{}],30:[function(require,module,exports){
-	var toString = {}.toString;
-
-	module.exports = Array.isArray || function (arr) {
-	  return toString.call(arr) == '[object Array]';
-	};
-
-	},{}],31:[function(require,module,exports){
-	(function (global){
-	module.exports = (typeof self === 'object' && self.self === self && self) ||
-	  (typeof global === 'object' && global.global === global && global) ||
-	  this;
-
-	}).call(this,typeof commonjsGlobal !== "undefined" ? commonjsGlobal : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {});
-
-	},{}]},{},[23])(23)
-	});
-
-
-	});
-
-	var index = {
-	  name: 'qrcode',
-	  props: {
-	    /**
-	     * The options for the QR code generator.
-	     * {@link https://github.com/soldair/node-qrcode#qr-code-options}
-	     */
-	    options: Object,
-
-	    /**
-	     * The tag name of the component's root element.
-	     */
-	    tag: {
-	      type: String,
-	      default: 'canvas'
-	    },
-
-	    /**
-	     * The value of the QR code.
-	     */
-	    value: null
-	  },
-	  render: function render(createElement) {
-	    return createElement(this.tag, this.$slots.default);
-	  },
-	  watch: {
-	    $props: {
-	      deep: true,
-	      immediate: true,
-	      handler: function handler() {
-	        if (this.$el) {
-	          this.generate();
-	        }
-	      }
-	    }
-	  },
-	  methods: {
-	    /**
-	     * Generate QR code.
-	     */
-	    generate: function generate() {
-	      var _this = this;
-
-	      var options = this.options,
-	          tag = this.tag;
-	      var value = String(this.value);
-
-	      if (tag === 'canvas') {
-	        qrcode.toCanvas(this.$el, value, options, function (error) {
-	          if (error) {
-	            throw error;
-	          }
-	        });
-	      } else if (tag === 'img') {
-	        qrcode.toDataURL(value, options, function (error, url) {
-	          if (error) {
-	            throw error;
-	          }
-
-	          _this.$el.src = url;
-	        });
-	      } else {
-	        qrcode.toString(value, options, function (error, string) {
-	          if (error) {
-	            throw error;
-	          }
-
-	          _this.$el.innerHTML = string;
-	        });
-	      }
-	    }
-	  },
-	  mounted: function mounted() {
-	    this.generate();
-	  }
-	};
-
-	return index;
-
-})));
diff --git a/BTCPayServer/wwwroot/vendor/vue-qrcode/vue-qrcode.min.js b/BTCPayServer/wwwroot/vendor/vue-qrcode/vue-qrcode.min.js
index f2958a784..720736d68 100644
--- a/BTCPayServer/wwwroot/vendor/vue-qrcode/vue-qrcode.min.js
+++ b/BTCPayServer/wwwroot/vendor/vue-qrcode/vue-qrcode.min.js
@@ -1,10 +1,10 @@
 /*!
- * vue-qrcode v1.0.0
+ * vue-qrcode v1.0.2
  * https://fengyuanchen.github.io/vue-qrcode
  *
  * Copyright 2018-present Chen Fengyuan
  * Released under the MIT license
  *
- * Date: 2018-10-21T13:04:02.951Z
+ * Date: 2020-01-18T06:04:33.222Z
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.VueQrcode=e()}(this,function(){"use strict";var n="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:{};function c(){throw new Error("Dynamic requires are not currently supported by rollup-plugin-commonjs")}var t,o=(function(t,e){t.exports=function i(a,u,s){function f(r,t){if(!u[r]){if(!a[r]){var e=c;if(!t&&e)return e(r,!0);if(l)return l(r,!0);var n=new Error("Cannot find module '"+r+"'");throw n.code="MODULE_NOT_FOUND",n}var o=u[r]={exports:{}};a[r][0].call(o.exports,function(t){var e=a[r][1][t];return f(e||t)},o,o.exports,i,a,u,s)}return u[r].exports}for(var l=c,t=0;t<s.length;t++)f(s[t]);return f}({1:[function(t,e,a){var u=t("./utils").getSymbolSize;a.getRowColCoords=function(t){if(1===t)return[];for(var e=Math.floor(t/7)+2,r=u(t),n=145===r?26:2*Math.ceil((r-13)/(2*e-2)),o=[r-7],i=1;i<e-1;i++)o[i]=o[i-1]-n;return o.push(6),o.reverse()},a.getPositions=function(t){for(var e=[],r=a.getRowColCoords(t),n=r.length,o=0;o<n;o++)for(var i=0;i<n;i++)0===o&&0===i||0===o&&i===n-1||o===n-1&&0===i||e.push([r[o],r[i]]);return e}},{"./utils":20}],2:[function(t,e,r){var n=t("./mode"),o=["0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"," ","$","%","*","+","-",".","/",":"];function i(t){this.mode=n.ALPHANUMERIC,this.data=t}i.getBitsLength=function(t){return 11*Math.floor(t/2)+t%2*6},i.prototype.getLength=function(){return this.data.length},i.prototype.getBitsLength=function(){return i.getBitsLength(this.data.length)},i.prototype.write=function(t){var e;for(e=0;e+2<=this.data.length;e+=2){var r=45*o.indexOf(this.data[e]);r+=o.indexOf(this.data[e+1]),t.put(r,11)}this.data.length%2&&t.put(o.indexOf(this.data[e]),6)},e.exports=i},{"./mode":13}],3:[function(t,e,r){function n(){this.buffer=[],this.length=0}n.prototype={get:function(t){var e=Math.floor(t/8);return 1==(this.buffer[e]>>>7-t%8&1)},put:function(t,e){for(var r=0;r<e;r++)this.putBit(1==(t>>>e-r-1&1))},getLengthInBits:function(){return this.length},putBit:function(t){var e=Math.floor(this.length/8);this.buffer.length<=e&&this.buffer.push(0),t&&(this.buffer[e]|=128>>>this.length%8),this.length++}},e.exports=n},{}],4:[function(t,e,r){var n=t("../utils/buffer");function o(t){if(!t||t<1)throw new Error("BitMatrix size must be defined and greater than 0");this.size=t,this.data=new n(t*t),this.data.fill(0),this.reservedBit=new n(t*t),this.reservedBit.fill(0)}o.prototype.set=function(t,e,r,n){var o=t*this.size+e;this.data[o]=r,n&&(this.reservedBit[o]=!0)},o.prototype.get=function(t,e){return this.data[t*this.size+e]},o.prototype.xor=function(t,e,r){this.data[t*this.size+e]^=r},o.prototype.isReserved=function(t,e){return this.reservedBit[t*this.size+e]},e.exports=o},{"../utils/buffer":27}],5:[function(t,e,r){var n=t("../utils/buffer"),o=t("./mode");function i(t){this.mode=o.BYTE,this.data=new n(t)}i.getBitsLength=function(t){return 8*t},i.prototype.getLength=function(){return this.data.length},i.prototype.getBitsLength=function(){return i.getBitsLength(this.data.length)},i.prototype.write=function(t){for(var e=0,r=this.data.length;e<r;e++)t.put(this.data[e],8)},e.exports=i},{"../utils/buffer":27,"./mode":13}],6:[function(t,e,r){var n=t("./error-correction-level"),o=[1,1,1,1,1,1,1,1,1,1,2,2,1,2,2,4,1,2,4,4,2,4,4,4,2,4,6,5,2,4,6,6,2,5,8,8,4,5,8,8,4,5,8,11,4,8,10,11,4,9,12,16,4,9,16,16,6,10,12,18,6,10,17,16,6,11,16,19,6,13,18,21,7,14,21,25,8,16,20,25,8,17,23,25,9,17,23,34,9,18,25,30,10,20,27,32,12,21,29,35,12,23,34,37,12,25,34,40,13,26,35,42,14,28,38,45,15,29,40,48,16,31,43,51,17,33,45,54,18,35,48,57,19,37,51,60,19,38,53,63,20,40,56,66,21,43,59,70,22,45,62,74,24,47,65,77,25,49,68,81],i=[7,10,13,17,10,16,22,28,15,26,36,44,20,36,52,64,26,48,72,88,36,64,96,112,40,72,108,130,48,88,132,156,60,110,160,192,72,130,192,224,80,150,224,264,96,176,260,308,104,198,288,352,120,216,320,384,132,240,360,432,144,280,408,480,168,308,448,532,180,338,504,588,196,364,546,650,224,416,600,700,224,442,644,750,252,476,690,816,270,504,750,900,300,560,810,960,312,588,870,1050,336,644,952,1110,360,700,1020,1200,390,728,1050,1260,420,784,1140,1350,450,812,1200,1440,480,868,1290,1530,510,924,1350,1620,540,980,1440,1710,570,1036,1530,1800,570,1064,1590,1890,600,1120,1680,1980,630,1204,1770,2100,660,1260,1860,2220,720,1316,1950,2310,750,1372,2040,2430];r.getBlocksCount=function(t,e){switch(e){case n.L:return o[4*(t-1)+0];case n.M:return o[4*(t-1)+1];case n.Q:return o[4*(t-1)+2];case n.H:return o[4*(t-1)+3];default:return}},r.getTotalCodewordsCount=function(t,e){switch(e){case n.L:return i[4*(t-1)+0];case n.M:return i[4*(t-1)+1];case n.Q:return i[4*(t-1)+2];case n.H:return i[4*(t-1)+3];default:return}}},{"./error-correction-level":7}],7:[function(t,e,r){r.L={bit:1},r.M={bit:0},r.Q={bit:3},r.H={bit:2},r.isValid=function(t){return t&&void 0!==t.bit&&0<=t.bit&&t.bit<4},r.from=function(t,e){if(r.isValid(t))return t;try{return function(t){if("string"!=typeof t)throw new Error("Param is not a string");switch(t.toLowerCase()){case"l":case"low":return r.L;case"m":case"medium":return r.M;case"q":case"quartile":return r.Q;case"h":case"high":return r.H;default:throw new Error("Unknown EC Level: "+t)}}(t)}catch(t){return e}}},{}],8:[function(t,e,r){var n=t("./utils").getSymbolSize;r.getPositions=function(t){var e=n(t);return[[0,0],[e-7,0],[0,e-7]]}},{"./utils":20}],9:[function(t,e,r){var o=t("./utils"),i=o.getBCHDigit(1335);r.getEncodedBits=function(t,e){for(var r=t.bit<<3|e,n=r<<10;0<=o.getBCHDigit(n)-i;)n^=1335<<o.getBCHDigit(n)-i;return 21522^(r<<10|n)}},{"./utils":20}],10:[function(t,e,r){var n=t("../utils/buffer"),o=new n(512),i=new n(256);!function(){for(var t=1,e=0;e<255;e++)o[e]=t,i[t]=e,256&(t<<=1)&&(t^=285);for(e=255;e<512;e++)o[e]=o[e-255]}(),r.log=function(t){if(t<1)throw new Error("log("+t+")");return i[t]},r.exp=function(t){return o[t]},r.mul=function(t,e){return 0===t||0===e?0:o[i[t]+i[e]]}},{"../utils/buffer":27}],11:[function(t,e,r){var n=t("./mode"),o=t("./utils");function i(t){this.mode=n.KANJI,this.data=t}i.getBitsLength=function(t){return 13*t},i.prototype.getLength=function(){return this.data.length},i.prototype.getBitsLength=function(){return i.getBitsLength(this.data.length)},i.prototype.write=function(t){var e;for(e=0;e<this.data.length;e++){var r=o.toSJIS(this.data[e]);if(33088<=r&&r<=40956)r-=33088;else{if(!(57408<=r&&r<=60351))throw new Error("Invalid SJIS character: "+this.data[e]+"\nMake sure your charset is UTF-8");r-=49472}r=192*(r>>>8&255)+(255&r),t.put(r,13)}},e.exports=i},{"./mode":13,"./utils":20}],12:[function(t,e,u){u.Patterns={PATTERN000:0,PATTERN001:1,PATTERN010:2,PATTERN011:3,PATTERN100:4,PATTERN101:5,PATTERN110:6,PATTERN111:7};var l={N1:3,N2:3,N3:40,N4:10};function i(t,e,r){switch(t){case u.Patterns.PATTERN000:return(e+r)%2==0;case u.Patterns.PATTERN001:return e%2==0;case u.Patterns.PATTERN010:return r%3==0;case u.Patterns.PATTERN011:return(e+r)%3==0;case u.Patterns.PATTERN100:return(Math.floor(e/2)+Math.floor(r/3))%2==0;case u.Patterns.PATTERN101:return e*r%2+e*r%3==0;case u.Patterns.PATTERN110:return(e*r%2+e*r%3)%2==0;case u.Patterns.PATTERN111:return(e*r%3+(e+r)%2)%2==0;default:throw new Error("bad maskPattern:"+t)}}u.isValid=function(t){return null!=t&&""!==t&&!isNaN(t)&&0<=t&&t<=7},u.from=function(t){return u.isValid(t)?parseInt(t,10):void 0},u.getPenaltyN1=function(t){for(var e=t.size,r=0,n=0,o=0,i=null,a=null,u=0;u<e;u++){n=o=0,i=a=null;for(var s=0;s<e;s++){var f=t.get(u,s);f===i?n++:(5<=n&&(r+=l.N1+(n-5)),i=f,n=1),(f=t.get(s,u))===a?o++:(5<=o&&(r+=l.N1+(o-5)),a=f,o=1)}5<=n&&(r+=l.N1+(n-5)),5<=o&&(r+=l.N1+(o-5))}return r},u.getPenaltyN2=function(t){for(var e=t.size,r=0,n=0;n<e-1;n++)for(var o=0;o<e-1;o++){var i=t.get(n,o)+t.get(n,o+1)+t.get(n+1,o)+t.get(n+1,o+1);4!==i&&0!==i||r++}return r*l.N2},u.getPenaltyN3=function(t){for(var e=t.size,r=0,n=0,o=0,i=0;i<e;i++){n=o=0;for(var a=0;a<e;a++)n=n<<1&2047|t.get(i,a),10<=a&&(1488===n||93===n)&&r++,o=o<<1&2047|t.get(a,i),10<=a&&(1488===o||93===o)&&r++}return r*l.N3},u.getPenaltyN4=function(t){for(var e=0,r=t.data.length,n=0;n<r;n++)e+=t.data[n];var o=Math.abs(Math.ceil(100*e/r/5)-10);return o*l.N4},u.applyMask=function(t,e){for(var r=e.size,n=0;n<r;n++)for(var o=0;o<r;o++)e.isReserved(o,n)||e.xor(o,n,i(t,o,n))},u.getBestMask=function(t,e){for(var r=Object.keys(u.Patterns).length,n=0,o=1/0,i=0;i<r;i++){e(i),u.applyMask(i,t);var a=u.getPenaltyN1(t)+u.getPenaltyN2(t)+u.getPenaltyN3(t)+u.getPenaltyN4(t);u.applyMask(i,t),a<o&&(o=a,n=i)}return n}},{}],13:[function(t,e,r){var n=t("./version-check"),o=t("./regex");r.NUMERIC={id:"Numeric",bit:1,ccBits:[10,12,14]},r.ALPHANUMERIC={id:"Alphanumeric",bit:2,ccBits:[9,11,13]},r.BYTE={id:"Byte",bit:4,ccBits:[8,16,16]},r.KANJI={id:"Kanji",bit:8,ccBits:[8,10,12]},r.MIXED={bit:-1},r.getCharCountIndicator=function(t,e){if(!t.ccBits)throw new Error("Invalid mode: "+t);if(!n.isValid(e))throw new Error("Invalid version: "+e);return 1<=e&&e<10?t.ccBits[0]:e<27?t.ccBits[1]:t.ccBits[2]},r.getBestModeForData=function(t){return o.testNumeric(t)?r.NUMERIC:o.testAlphanumeric(t)?r.ALPHANUMERIC:o.testKanji(t)?r.KANJI:r.BYTE},r.toString=function(t){if(t&&t.id)return t.id;throw new Error("Invalid mode")},r.isValid=function(t){return t&&t.bit&&t.ccBits},r.from=function(t,e){if(r.isValid(t))return t;try{return function(t){if("string"!=typeof t)throw new Error("Param is not a string");switch(t.toLowerCase()){case"numeric":return r.NUMERIC;case"alphanumeric":return r.ALPHANUMERIC;case"kanji":return r.KANJI;case"byte":return r.BYTE;default:throw new Error("Unknown mode: "+t)}}(t)}catch(t){return e}}},{"./regex":18,"./version-check":21}],14:[function(t,e,r){var n=t("./mode");function o(t){this.mode=n.NUMERIC,this.data=t.toString()}o.getBitsLength=function(t){return 10*Math.floor(t/3)+(t%3?t%3*3+1:0)},o.prototype.getLength=function(){return this.data.length},o.prototype.getBitsLength=function(){return o.getBitsLength(this.data.length)},o.prototype.write=function(t){var e,r,n;for(e=0;e+3<=this.data.length;e+=3)r=this.data.substr(e,3),n=parseInt(r,10),t.put(n,10);var o=this.data.length-e;0<o&&(r=this.data.substr(e),n=parseInt(r,10),t.put(n,3*o+1))},e.exports=o},{"./mode":13}],15:[function(t,e,n){var a=t("../utils/buffer"),u=t("./galois-field");n.mul=function(t,e){var r=new a(t.length+e.length-1);r.fill(0);for(var n=0;n<t.length;n++)for(var o=0;o<e.length;o++)r[n+o]^=u.mul(t[n],e[o]);return r},n.mod=function(t,e){for(var r=new a(t);0<=r.length-e.length;){for(var n=r[0],o=0;o<e.length;o++)r[o]^=u.mul(e[o],n);for(var i=0;i<r.length&&0===r[i];)i++;r=r.slice(i)}return r},n.generateECPolynomial=function(t){for(var e=new a([1]),r=0;r<t;r++)e=n.mul(e,[1,u.exp(r)]);return e}},{"../utils/buffer":27,"./galois-field":10}],16:[function(t,e,r){var R=t("../utils/buffer"),P=t("./utils"),i=t("./error-correction-level"),f=t("./bit-buffer"),c=t("./bit-matrix"),h=t("./alignment-pattern"),d=t("./finder-pattern"),g=t("./mask-pattern"),T=t("./error-correction-code"),C=t("./reed-solomon-encoder"),p=t("./version"),u=t("./format-info"),l=t("./mode"),v=t("./segments"),m=t("isarray");function w(t,e,r){var n,o,i=t.size,a=u.getEncodedBits(e,r);for(n=0;n<15;n++)o=1==(a>>n&1),n<6?t.set(n,8,o,!0):n<8?t.set(n+1,8,o,!0):t.set(i-15+n,8,o,!0),n<8?t.set(8,i-n-1,o,!0):n<9?t.set(8,15-n-1+1,o,!0):t.set(8,15-n-1,o,!0);t.set(i-8,8,1,!0)}function y(e,t,r){var n=new f;r.forEach(function(t){n.put(t.mode.bit,4),n.put(t.getLength(),l.getCharCountIndicator(t.mode,e)),t.write(n)});var o=P.getSymbolTotalCodewords(e),i=T.getTotalCodewordsCount(e,t),a=8*(o-i);for(n.getLengthInBits()+4<=a&&n.put(0,4);n.getLengthInBits()%8!=0;)n.putBit(0);for(var u=(a-n.getLengthInBits())/8,s=0;s<u;s++)n.put(s%2?17:236,8);return function(t,e,r){for(var n=P.getSymbolTotalCodewords(e),o=T.getTotalCodewordsCount(e,r),i=n-o,a=T.getBlocksCount(e,r),u=a-n%a,s=Math.floor(n/a),f=Math.floor(i/a),l=f+1,c=s-f,h=new C(c),d=0,g=new Array(a),p=new Array(a),v=0,m=new R(t.buffer),w=0;w<a;w++){var y=w<u?f:l;g[w]=m.slice(d,d+y),p[w]=h.encode(g[w]),d+=y,v=Math.max(v,y)}var E,b,A=new R(n),B=0;for(E=0;E<v;E++)for(b=0;b<a;b++)E<g[b].length&&(A[B++]=g[b][E]);for(E=0;E<c;E++)for(b=0;b<a;b++)A[B++]=p[b][E];return A}(n,e,t)}function a(t,e,r,n){var o;if(m(t))o=v.fromArray(t);else{if("string"!=typeof t)throw new Error("Invalid data");var i=e;if(!i){var a=v.rawSplit(t);i=p.getBestVersionForData(a,r)}o=v.fromString(t,i||40)}var u=p.getBestVersionForData(o,r);if(!u)throw new Error("The amount of data is too big to be stored in a QR Code");if(e){if(e<u)throw new Error("\nThe chosen QR Code version cannot contain this amount of data.\nMinimum version required to store current data is: "+u+".\n")}else e=u;var s=y(e,r,o),f=P.getSymbolSize(e),l=new c(f);return function(t,e){for(var r=t.size,n=d.getPositions(e),o=0;o<n.length;o++)for(var i=n[o][0],a=n[o][1],u=-1;u<=7;u++)if(!(i+u<=-1||r<=i+u))for(var s=-1;s<=7;s++)a+s<=-1||r<=a+s||(0<=u&&u<=6&&(0===s||6===s)||0<=s&&s<=6&&(0===u||6===u)||2<=u&&u<=4&&2<=s&&s<=4?t.set(i+u,a+s,!0,!0):t.set(i+u,a+s,!1,!0))}(l,e),function(t){for(var e=t.size,r=8;r<e-8;r++){var n=r%2==0;t.set(r,6,n,!0),t.set(6,r,n,!0)}}(l),function(t,e){for(var r=h.getPositions(e),n=0;n<r.length;n++)for(var o=r[n][0],i=r[n][1],a=-2;a<=2;a++)for(var u=-2;u<=2;u++)-2===a||2===a||-2===u||2===u||0===a&&0===u?t.set(o+a,i+u,!0,!0):t.set(o+a,i+u,!1,!0)}(l,e),w(l,r,0),7<=e&&function(t,e){for(var r,n,o,i=t.size,a=p.getEncodedBits(e),u=0;u<18;u++)r=Math.floor(u/3),n=u%3+i-8-3,o=1==(a>>u&1),t.set(r,n,o,!0),t.set(n,r,o,!0)}(l,e),function(t,e){for(var r=t.size,n=-1,o=r-1,i=7,a=0,u=r-1;0<u;u-=2)for(6===u&&u--;;){for(var s=0;s<2;s++)if(!t.isReserved(o,u-s)){var f=!1;a<e.length&&(f=1==(e[a]>>>i&1)),t.set(o,u-s,f),-1==--i&&(a++,i=7)}if((o+=n)<0||r<=o){o-=n,n=-n;break}}}(l,s),isNaN(n)&&(n=g.getBestMask(l,w.bind(null,l,r))),g.applyMask(n,l),w(l,r,n),{modules:l,version:e,errorCorrectionLevel:r,maskPattern:n,segments:o}}r.create=function(t,e){if(void 0===t||""===t)throw new Error("No input text");var r,n,o=i.M;return void 0!==e&&(o=i.from(e.errorCorrectionLevel,i.M),r=p.from(e.version),n=g.from(e.maskPattern),e.toSJISFunc&&P.setToSJISFunction(e.toSJISFunc)),a(t,r,o,n)}},{"../utils/buffer":27,"./alignment-pattern":1,"./bit-buffer":3,"./bit-matrix":4,"./error-correction-code":6,"./error-correction-level":7,"./finder-pattern":8,"./format-info":9,"./mask-pattern":12,"./mode":13,"./reed-solomon-encoder":17,"./segments":19,"./utils":20,"./version":22,isarray:30}],17:[function(t,e,r){var a=t("../utils/buffer"),u=t("./polynomial");function n(t){this.genPoly=void 0,this.degree=t,this.degree&&this.initialize(this.degree)}n.prototype.initialize=function(t){this.degree=t,this.genPoly=u.generateECPolynomial(this.degree)},n.prototype.encode=function(t){if(!this.genPoly)throw new Error("Encoder not initialized");var e=new a(this.degree);e.fill(0);var r=a.concat([t,e],t.length+this.degree),n=u.mod(r,this.genPoly),o=this.degree-n.length;if(0<o){var i=new a(this.degree);return i.fill(0),n.copy(i,o),i}return n},e.exports=n},{"../utils/buffer":27,"./polynomial":15}],18:[function(t,e,r){var n="(?:[u3000-u303F]|[u3040-u309F]|[u30A0-u30FF]|[uFF00-uFFEF]|[u4E00-u9FAF]|[u2605-u2606]|[u2190-u2195]|u203B|[u2010u2015u2018u2019u2025u2026u201Cu201Du2225u2260]|[u0391-u0451]|[u00A7u00A8u00B1u00B4u00D7u00F7])+",o="(?:(?![A-Z0-9 $%*+\\-./:]|"+(n=n.replace(/u/g,"\\u"))+")(?:.|[\r\n]))+";r.KANJI=new RegExp(n,"g"),r.BYTE_KANJI=new RegExp("[^A-Z0-9 $%*+\\-./:]+","g"),r.BYTE=new RegExp(o,"g"),r.NUMERIC=new RegExp("[0-9]+","g"),r.ALPHANUMERIC=new RegExp("[A-Z $%*+\\-./:]+","g");var i=new RegExp("^"+n+"$"),a=new RegExp("^[0-9]+$"),u=new RegExp("^[A-Z0-9 $%*+\\-./:]+$");r.testKanji=function(t){return i.test(t)},r.testNumeric=function(t){return a.test(t)},r.testAlphanumeric=function(t){return u.test(t)}},{}],19:[function(t,e,s){var d=t("./mode"),o=t("./numeric-data"),i=t("./alphanumeric-data"),a=t("./byte-data"),u=t("./kanji-data"),f=t("./regex"),l=t("./utils"),c=t("dijkstrajs");function h(t){return unescape(encodeURIComponent(t)).length}function g(t,e,r){for(var n,o=[];null!==(n=t.exec(r));)o.push({data:n[0],index:n.index,mode:e,length:n[0].length});return o}function p(t){var e,r,n=g(f.NUMERIC,d.NUMERIC,t),o=g(f.ALPHANUMERIC,d.ALPHANUMERIC,t);r=l.isKanjiModeEnabled()?(e=g(f.BYTE,d.BYTE,t),g(f.KANJI,d.KANJI,t)):(e=g(f.BYTE_KANJI,d.BYTE,t),[]);var i=n.concat(o,e,r);return i.sort(function(t,e){return t.index-e.index}).map(function(t){return{data:t.data,mode:t.mode,length:t.length}})}function v(t,e){switch(e){case d.NUMERIC:return o.getBitsLength(t);case d.ALPHANUMERIC:return i.getBitsLength(t);case d.KANJI:return u.getBitsLength(t);case d.BYTE:return a.getBitsLength(t)}}function r(t,e){var r,n=d.getBestModeForData(t);if((r=d.from(e,n))!==d.BYTE&&r.bit<n.bit)throw new Error('"'+t+'" cannot be encoded with mode '+d.toString(r)+".\n Suggested mode is: "+d.toString(n));switch(r!==d.KANJI||l.isKanjiModeEnabled()||(r=d.BYTE),r){case d.NUMERIC:return new o(t);case d.ALPHANUMERIC:return new i(t);case d.KANJI:return new u(t);case d.BYTE:return new a(t)}}s.fromArray=function(t){return t.reduce(function(t,e){return"string"==typeof e?t.push(r(e,null)):e.data&&t.push(r(e.data,e.mode)),t},[])},s.fromString=function(t,e){for(var r=p(t,l.isKanjiModeEnabled()),n=function(t){for(var e=[],r=0;r<t.length;r++){var n=t[r];switch(n.mode){case d.NUMERIC:e.push([n,{data:n.data,mode:d.ALPHANUMERIC,length:n.length},{data:n.data,mode:d.BYTE,length:n.length}]);break;case d.ALPHANUMERIC:e.push([n,{data:n.data,mode:d.BYTE,length:n.length}]);break;case d.KANJI:e.push([n,{data:n.data,mode:d.BYTE,length:h(n.data)}]);break;case d.BYTE:e.push([{data:n.data,mode:d.BYTE,length:h(n.data)}])}}return e}(r),o=function(t,e){for(var r={},n={start:{}},o=["start"],i=0;i<t.length;i++){for(var a=t[i],u=[],s=0;s<a.length;s++){var f=a[s],l=""+i+s;u.push(l),r[l]={node:f,lastCount:0},n[l]={};for(var c=0;c<o.length;c++){var h=o[c];r[h]&&r[h].node.mode===f.mode?(n[h][l]=v(r[h].lastCount+f.length,f.mode)-v(r[h].lastCount,f.mode),r[h].lastCount+=f.length):(r[h]&&(r[h].lastCount=f.length),n[h][l]=v(f.length,f.mode)+4+d.getCharCountIndicator(f.mode,e))}}o=u}for(c=0;c<o.length;c++)n[o[c]].end=0;return{map:n,table:r}}(n,e),i=c.find_path(o.map,"start","end"),a=[],u=1;u<i.length-1;u++)a.push(o.table[i[u]].node);return s.fromArray(a.reduce(function(t,e){var r=0<=t.length-1?t[t.length-1]:null;return r&&r.mode===e.mode?t[t.length-1].data+=e.data:t.push(e),t},[]))},s.rawSplit=function(t){return s.fromArray(p(t,l.isKanjiModeEnabled()))}},{"./alphanumeric-data":2,"./byte-data":5,"./kanji-data":11,"./mode":13,"./numeric-data":14,"./regex":18,"./utils":20,dijkstrajs:29}],20:[function(t,e,r){var n,o=[0,26,44,70,100,134,172,196,242,292,346,404,466,532,581,655,733,815,901,991,1085,1156,1258,1364,1474,1588,1706,1828,1921,2051,2185,2323,2465,2611,2761,2876,3034,3196,3362,3532,3706];r.getSymbolSize=function(t){if(!t)throw new Error('"version" cannot be null or undefined');if(t<1||40<t)throw new Error('"version" should be in range from 1 to 40');return 4*t+17},r.getSymbolTotalCodewords=function(t){return o[t]},r.getBCHDigit=function(t){for(var e=0;0!==t;)e++,t>>>=1;return e},r.setToSJISFunction=function(t){if("function"!=typeof t)throw new Error('"toSJISFunc" is not a valid function.');n=t},r.isKanjiModeEnabled=function(){return void 0!==n},r.toSJIS=function(t){return n(t)}},{}],21:[function(t,e,r){r.isValid=function(t){return!isNaN(t)&&1<=t&&t<=40}},{}],22:[function(t,e,o){var u=t("./utils"),s=t("./error-correction-code"),i=t("./error-correction-level"),f=t("./mode"),l=t("./version-check"),a=t("isarray"),r=u.getBCHDigit(7973);function c(t,e){return f.getCharCountIndicator(t,e)+4}function h(t,r){var n=0;return t.forEach(function(t){var e=c(t.mode,r);n+=e+t.getBitsLength()}),n}o.from=function(t,e){return l.isValid(t)?parseInt(t,10):e},o.getCapacity=function(t,e,r){if(!l.isValid(t))throw new Error("Invalid QR Code version");void 0===r&&(r=f.BYTE);var n=u.getSymbolTotalCodewords(t),o=s.getTotalCodewordsCount(t,e),i=8*(n-o);if(r===f.MIXED)return i;var a=i-c(r,t);switch(r){case f.NUMERIC:return Math.floor(a/10*3);case f.ALPHANUMERIC:return Math.floor(a/11*2);case f.KANJI:return Math.floor(a/13);case f.BYTE:default:return Math.floor(a/8)}},o.getBestVersionForData=function(t,e){var r,n=i.from(e,i.M);if(a(t)){if(1<t.length)return function(t,e){for(var r=1;r<=40;r++){var n=h(t,r);if(n<=o.getCapacity(r,e,f.MIXED))return r}}(t,n);if(0===t.length)return 1;r=t[0]}else r=t;return function(t,e,r){for(var n=1;n<=40;n++)if(e<=o.getCapacity(n,r,t))return n}(r.mode,r.getLength(),n)},o.getEncodedBits=function(t){if(!l.isValid(t)||t<7)throw new Error("Invalid QR Code version");for(var e=t<<12;0<=u.getBCHDigit(e)-r;)e^=7973<<u.getBCHDigit(e)-r;return t<<12|e}},{"./error-correction-code":6,"./error-correction-level":7,"./mode":13,"./utils":20,"./version-check":21,isarray:30}],23:[function(t,e,r){var f=t("can-promise"),l=t("./core/qrcode"),n=t("./renderer/canvas"),o=t("./renderer/svg-tag.js");function i(n,o,i,a,e){var t=[].slice.call(arguments,1),r=t.length,u="function"==typeof t[r-1];if(!u&&!f())throw new Error("Callback required as last argument");if(!u){if(r<1)throw new Error("Too few arguments provided");return 1===r?(i=o,o=a=void 0):2!==r||o.getContext||(a=i,i=o,o=void 0),new Promise(function(t,e){try{var r=l.create(i,a);t(n(r,o,a))}catch(t){e(t)}})}if(r<2)throw new Error("Too few arguments provided");2===r?(e=i,i=o,o=a=void 0):3===r&&(o.getContext&&void 0===e?(e=a,a=void 0):(e=a,a=i,i=o,o=void 0));try{var s=l.create(i,a);e(null,n(s,o,a))}catch(t){e(t)}}r.create=l.create,r.toCanvas=i.bind(null,n.render),r.toDataURL=i.bind(null,n.renderToDataURL),r.toString=i.bind(null,function(t,e,r){return o.render(t,r)})},{"./core/qrcode":16,"./renderer/canvas":24,"./renderer/svg-tag.js":25,"can-promise":28}],24:[function(t,e,u){var l=t("./utils");u.render=function(t,e,r){var n=r,o=e;void 0!==n||e&&e.getContext||(n=e,e=void 0),e||(o=function(){try{return document.createElement("canvas")}catch(t){throw new Error("You need to specify a canvas element")}}()),n=l.getOptions(n);var i,a,u=l.getImageWidth(t.modules.size,n),s=o.getContext("2d"),f=s.createImageData(u,u);return l.qrToImageData(f.data,t,n),i=o,a=u,s.clearRect(0,0,i.width,i.height),i.style||(i.style={}),i.height=a,i.width=a,i.style.height=a+"px",i.style.width=a+"px",s.putImageData(f,0,0),o},u.renderToDataURL=function(t,e,r){var n=r;void 0!==n||e&&e.getContext||(n=e,e=void 0),n||(n={});var o=u.render(t,e,n),i=n.type||"image/png",a=n.rendererOpts||{};return o.toDataURL(i,a.quality)}},{"./utils":26}],25:[function(t,e,r){var h=t("./utils");function d(t,e){var r=t.a/255,n=e+'="'+t.hex+'"';return r<1?n+" "+e+'-opacity="'+r.toFixed(2).slice(1)+'"':n}function g(t,e,r){var n=t+e;return void 0!==r&&(n+=" "+r),n}r.render=function(t,e,r){var n=h.getOptions(e),o=t.modules.size,i=t.modules.data,a=o+2*n.margin,u=n.color.light.a?"<path "+d(n.color.light,"fill")+' d="M0 0h'+a+"v"+a+'H0z"/>':"",s="<path "+d(n.color.dark,"stroke")+' d="'+function(t,e,r){for(var n="",o=0,i=!1,a=0,u=0;u<t.length;u++){var s=Math.floor(u%e),f=Math.floor(u/e);s||i||(i=!0),t[u]?(a++,0<u&&0<s&&t[u-1]||(n+=i?g("M",s+r,.5+f+r):g("m",o,0),o=0,i=!1),s+1<e&&t[u+1]||(n+=g("h",a),a=0)):o++}return n}(i,o,n.margin)+'"/>',f='viewBox="0 0 '+a+" "+a+'"',l=n.width?'width="'+n.width+'" height="'+n.width+'" ':"",c='<svg xmlns="http://www.w3.org/2000/svg" '+l+f+' shape-rendering="crispEdges">'+u+s+"</svg>\n";return"function"==typeof r&&r(null,c),c}},{"./utils":26}],26:[function(t,e,p){function o(t){if("string"!=typeof t)throw new Error("Color should be defined as hex string");var e=t.slice().replace("#","").split("");if(e.length<3||5===e.length||8<e.length)throw new Error("Invalid hex color: 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c=4*(f*a+l),h=r.color.light;if(u<=f&&u<=l&&f<a-u&&l<a-u){var d=Math.floor((f-u)/i),g=Math.floor((l-u)/i);h=s[o[d*n+g]?1:0]}t[c++]=h.r,t[c++]=h.g,t[c++]=h.b,t[c]=h.a}}},{}],27:[function(t,e,r){var a=t("isarray"),n=(f.TYPED_ARRAY_SUPPORT=function(){try{var t=new Uint8Array(1);return t.__proto__={__proto__:Uint8Array.prototype,foo:function(){return 42}},42===t.foo()}catch(t){return!1}}())?2147483647:1073741823;function f(t,e,r){return f.TYPED_ARRAY_SUPPORT||this instanceof f?"number"==typeof t?u(this,t):function(t,e,r,n){if("number"==typeof e)throw new TypeError('"value" argument must not be a number');return"undefined"!=typeof ArrayBuffer&&e instanceof ArrayBuffer?function(t,e,r,n){if(r<0||e.byteLength<r)throw new RangeError("'offset' is out of bounds");if(e.byteLength<r+(n||0))throw new RangeError("'length' is out of bounds");var o;return o=void 0===r&&void 0===n?new Uint8Array(e):void 0===n?new Uint8Array(e,r):new 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n.L:return o[4*(t-1)+0];case n.M:return o[4*(t-1)+1];case n.Q:return o[4*(t-1)+2];case n.H:return o[4*(t-1)+3];default:return}},e.getTotalCodewordsCount=function(t,r){switch(r){case n.L:return i[4*(t-1)+0];case n.M:return i[4*(t-1)+1];case n.Q:return i[4*(t-1)+2];case n.H:return i[4*(t-1)+3];default:return}}},{"./error-correction-level":8}],8:[function(t,r,e){e.L={bit:1},e.M={bit:0},e.Q={bit:3},e.H={bit:2},e.isValid=function(t){return t&&void 0!==t.bit&&0<=t.bit&&t.bit<4},e.from=function(t,r){if(e.isValid(t))return t;try{return function(t){if("string"!=typeof t)throw new Error("Param is not a string");switch(t.toLowerCase()){case"l":case"low":return e.L;case"m":case"medium":return e.M;case"q":case"quartile":return e.Q;case"h":case"high":return e.H;default:throw new Error("Unknown EC Level: "+t)}}(t)}catch(t){return r}}},{}],9:[function(t,r,e){var n=t("./utils").getSymbolSize;e.getPositions=function(t){var r=n(t);return[[0,0],[r-7,0],[0,r-7]]}},{"./utils":21}],10:[function(t,r,e){var o=t("./utils"),i=o.getBCHDigit(1335);e.getEncodedBits=function(t,r){for(var e=t.bit<<3|r,n=e<<10;0<=o.getBCHDigit(n)-i;)n^=1335<<o.getBCHDigit(n)-i;return 21522^(e<<10|n)}},{"./utils":21}],11:[function(t,r,e){var n=t("../utils/buffer"),o=n.alloc(512),i=n.alloc(256);!function(){for(var t=1,r=0;r<255;r++)o[r]=t,i[t]=r,256&(t<<=1)&&(t^=285);for(r=255;r<512;r++)o[r]=o[r-255]}(),e.log=function(t){if(t<1)throw new Error("log("+t+")");return i[t]},e.exp=function(t){return o[t]},e.mul=function(t,r){return 0===t||0===r?0:o[i[t]+i[r]]}},{"../utils/buffer":28}],12:[function(t,r,e){var n=t("./mode"),o=t("./utils");function i(t){this.mode=n.KANJI,this.data=t}i.getBitsLength=function(t){return 13*t},i.prototype.getLength=function(){return this.data.length},i.prototype.getBitsLength=function(){return i.getBitsLength(this.data.length)},i.prototype.write=function(t){var r;for(r=0;r<this.data.length;r++){var e=o.toSJIS(this.data[r]);if(33088<=e&&e<=40956)e-=33088;else{if(!(57408<=e&&e<=60351))throw new Error("Invalid SJIS character: "+this.data[r]+"\nMake sure your charset is UTF-8");e-=49472}e=192*(e>>>8&255)+(255&e),t.put(e,13)}},r.exports=i},{"./mode":14,"./utils":21}],13:[function(t,r,u){u.Patterns={PATTERN000:0,PATTERN001:1,PATTERN010:2,PATTERN011:3,PATTERN100:4,PATTERN101:5,PATTERN110:6,PATTERN111:7};var h={N1:3,N2:3,N3:40,N4:10};function i(t,r,e){switch(t){case u.Patterns.PATTERN000:return(r+e)%2==0;case u.Patterns.PATTERN001:return r%2==0;case u.Patterns.PATTERN010:return e%3==0;case u.Patterns.PATTERN011:return(r+e)%3==0;case u.Patterns.PATTERN100:return(Math.floor(r/2)+Math.floor(e/3))%2==0;case u.Patterns.PATTERN101:return r*e%2+r*e%3==0;case u.Patterns.PATTERN110:return(r*e%2+r*e%3)%2==0;case u.Patterns.PATTERN111:return(r*e%3+(r+e)%2)%2==0;default:throw new Error("bad maskPattern:"+t)}}u.isValid=function(t){return null!=t&&""!==t&&!isNaN(t)&&0<=t&&t<=7},u.from=function(t){return u.isValid(t)?parseInt(t,10):void 0},u.getPenaltyN1=function(t){for(var r=t.size,e=0,n=0,o=0,i=null,a=null,u=0;u<r;u++){n=o=0,i=a=null;for(var f=0;f<r;f++){var s=t.get(u,f);s===i?n++:(5<=n&&(e+=h.N1+(n-5)),i=s,n=1),(s=t.get(f,u))===a?o++:(5<=o&&(e+=h.N1+(o-5)),a=s,o=1)}5<=n&&(e+=h.N1+(n-5)),5<=o&&(e+=h.N1+(o-5))}return e},u.getPenaltyN2=function(t){for(var r=t.size,e=0,n=0;n<r-1;n++)for(var o=0;o<r-1;o++){var i=t.get(n,o)+t.get(n,o+1)+t.get(n+1,o)+t.get(n+1,o+1);4!==i&&0!==i||e++}return e*h.N2},u.getPenaltyN3=function(t){for(var r=t.size,e=0,n=0,o=0,i=0;i<r;i++){n=o=0;for(var a=0;a<r;a++)n=n<<1&2047|t.get(i,a),10<=a&&(1488===n||93===n)&&e++,o=o<<1&2047|t.get(a,i),10<=a&&(1488===o||93===o)&&e++}return e*h.N3},u.getPenaltyN4=function(t){for(var r=0,e=t.data.length,n=0;n<e;n++)r+=t.data[n];var o=Math.abs(Math.ceil(100*r/e/5)-10);return o*h.N4},u.applyMask=function(t,r){for(var e=r.size,n=0;n<e;n++)for(var o=0;o<e;o++)r.isReserved(o,n)||r.xor(o,n,i(t,o,n))},u.getBestMask=function(t,r){for(var e=Object.keys(u.Patterns).length,n=0,o=1/0,i=0;i<e;i++){r(i),u.applyMask(i,t);var a=u.getPenaltyN1(t)+u.getPenaltyN2(t)+u.getPenaltyN3(t)+u.getPenaltyN4(t);u.applyMask(i,t),a<o&&(o=a,n=i)}return n}},{}],14:[function(t,r,e){var n=t("./version-check"),o=t("./regex");e.NUMERIC={id:"Numeric",bit:1,ccBits:[10,12,14]},e.ALPHANUMERIC={id:"Alphanumeric",bit:2,ccBits:[9,11,13]},e.BYTE={id:"Byte",bit:4,ccBits:[8,16,16]},e.KANJI={id:"Kanji",bit:8,ccBits:[8,10,12]},e.MIXED={bit:-1},e.getCharCountIndicator=function(t,r){if(!t.ccBits)throw new Error("Invalid mode: "+t);if(!n.isValid(r))throw new Error("Invalid version: "+r);return 1<=r&&r<10?t.ccBits[0]:r<27?t.ccBits[1]:t.ccBits[2]},e.getBestModeForData=function(t){return o.testNumeric(t)?e.NUMERIC:o.testAlphanumeric(t)?e.ALPHANUMERIC:o.testKanji(t)?e.KANJI:e.BYTE},e.toString=function(t){if(t&&t.id)return t.id;throw new Error("Invalid mode")},e.isValid=function(t){return t&&t.bit&&t.ccBits},e.from=function(t,r){if(e.isValid(t))return t;try{return function(t){if("string"!=typeof t)throw new Error("Param is not a string");switch(t.toLowerCase()){case"numeric":return e.NUMERIC;case"alphanumeric":return e.ALPHANUMERIC;case"kanji":return e.KANJI;case"byte":return e.BYTE;default:throw new Error("Unknown mode: "+t)}}(t)}catch(t){return r}}},{"./regex":19,"./version-check":22}],15:[function(t,r,e){var n=t("./mode");function o(t){this.mode=n.NUMERIC,this.data=t.toString()}o.getBitsLength=function(t){return 10*Math.floor(t/3)+(t%3?t%3*3+1:0)},o.prototype.getLength=function(){return this.data.length},o.prototype.getBitsLength=function(){return o.getBitsLength(this.data.length)},o.prototype.write=function(t){var r,e,n;for(r=0;r+3<=this.data.length;r+=3)e=this.data.substr(r,3),n=parseInt(e,10),t.put(n,10);var o=this.data.length-r;0<o&&(e=this.data.substr(r),n=parseInt(e,10),t.put(n,3*o+1))},r.exports=o},{"./mode":14}],16:[function(t,r,n){var a=t("../utils/buffer"),u=t("./galois-field");n.mul=function(t,r){for(var e=a.alloc(t.length+r.length-1),n=0;n<t.length;n++)for(var o=0;o<r.length;o++)e[n+o]^=u.mul(t[n],r[o]);return e},n.mod=function(t,r){for(var e=a.from(t);0<=e.length-r.length;){for(var n=e[0],o=0;o<r.length;o++)e[o]^=u.mul(r[o],n);for(var i=0;i<e.length&&0===e[i];)i++;e=e.slice(i)}return e},n.generateECPolynomial=function(t){for(var r=a.from([1]),e=0;e<t;e++)r=n.mul(r,[1,u.exp(e)]);return r}},{"../utils/buffer":28,"./galois-field":11}],17:[function(t,r,e){var T=t("../utils/buffer"),R=t("./utils"),i=t("./error-correction-level"),s=t("./bit-buffer"),c=t("./bit-matrix"),l=t("./alignment-pattern"),g=t("./finder-pattern"),p=t("./mask-pattern"),C=t("./error-correction-code"),I=t("./reed-solomon-encoder"),d=t("./version"),u=t("./format-info"),h=t("./mode"),y=t("./segments"),v=t("isarray");function w(t,r,e){var n,o,i=t.size,a=u.getEncodedBits(r,e);for(n=0;n<15;n++)o=1==(a>>n&1),n<6?t.set(n,8,o,!0):n<8?t.set(n+1,8,o,!0):t.set(i-15+n,8,o,!0),n<8?t.set(8,i-n-1,o,!0):n<9?t.set(8,15-n-1+1,o,!0):t.set(8,15-n-1,o,!0);t.set(i-8,8,1,!0)}function m(r,t,e){var n=new s;e.forEach(function(t){n.put(t.mode.bit,4),n.put(t.getLength(),h.getCharCountIndicator(t.mode,r)),t.write(n)});var o=R.getSymbolTotalCodewords(r),i=C.getTotalCodewordsCount(r,t),a=8*(o-i);for(n.getLengthInBits()+4<=a&&n.put(0,4);n.getLengthInBits()%8!=0;)n.putBit(0);for(var u=(a-n.getLengthInBits())/8,f=0;f<u;f++)n.put(f%2?17:236,8);return function(t,r,e){for(var n=R.getSymbolTotalCodewords(r),o=C.getTotalCodewordsCount(r,e),i=n-o,a=C.getBlocksCount(r,e),u=a-n%a,f=Math.floor(n/a),s=Math.floor(i/a),h=s+1,c=f-s,l=new I(c),g=0,p=new Array(a),d=new Array(a),y=0,v=T.from(t.buffer),w=0;w<a;w++){var m=w<u?s:h;p[w]=v.slice(g,g+m),d[w]=l.encode(p[w]),g+=m,y=Math.max(y,m)}var b,E,A=T.alloc(n),B=0;for(b=0;b<y;b++)for(E=0;E<a;E++)b<p[E].length&&(A[B++]=p[E][b]);for(b=0;b<c;b++)for(E=0;E<a;E++)A[B++]=d[E][b];return A}(n,r,t)}function a(t,r,e,n){var o;if(v(t))o=y.fromArray(t);else{if("string"!=typeof t)throw new Error("Invalid data");var i=r;if(!i){var a=y.rawSplit(t);i=d.getBestVersionForData(a,e)}o=y.fromString(t,i||40)}var u=d.getBestVersionForData(o,e);if(!u)throw new Error("The amount of data is too big to be stored in a QR Code");if(r){if(r<u)throw new Error("\nThe chosen QR Code version cannot contain this amount of data.\nMinimum version required to store current data is: "+u+".\n")}else r=u;var f=m(r,e,o),s=R.getSymbolSize(r),h=new c(s);return function(t,r){for(var e=t.size,n=g.getPositions(r),o=0;o<n.length;o++)for(var i=n[o][0],a=n[o][1],u=-1;u<=7;u++)if(!(i+u<=-1||e<=i+u))for(var f=-1;f<=7;f++)a+f<=-1||e<=a+f||(0<=u&&u<=6&&(0===f||6===f)||0<=f&&f<=6&&(0===u||6===u)||2<=u&&u<=4&&2<=f&&f<=4?t.set(i+u,a+f,!0,!0):t.set(i+u,a+f,!1,!0))}(h,r),function(t){for(var r=t.size,e=8;e<r-8;e++){var n=e%2==0;t.set(e,6,n,!0),t.set(6,e,n,!0)}}(h),function(t,r){for(var e=l.getPositions(r),n=0;n<e.length;n++)for(var o=e[n][0],i=e[n][1],a=-2;a<=2;a++)for(var u=-2;u<=2;u++)-2===a||2===a||-2===u||2===u||0===a&&0===u?t.set(o+a,i+u,!0,!0):t.set(o+a,i+u,!1,!0)}(h,r),w(h,e,0),7<=r&&function(t,r){for(var e,n,o,i=t.size,a=d.getEncodedBits(r),u=0;u<18;u++)e=Math.floor(u/3),n=u%3+i-8-3,o=1==(a>>u&1),t.set(e,n,o,!0),t.set(n,e,o,!0)}(h,r),function(t,r){for(var e=t.size,n=-1,o=e-1,i=7,a=0,u=e-1;0<u;u-=2)for(6===u&&u--;;){for(var f=0;f<2;f++)if(!t.isReserved(o,u-f)){var s=!1;a<r.length&&(s=1==(r[a]>>>i&1)),t.set(o,u-f,s),-1===--i&&(a++,i=7)}if((o+=n)<0||e<=o){o-=n,n=-n;break}}}(h,f),isNaN(n)&&(n=p.getBestMask(h,w.bind(null,h,e))),p.applyMask(n,h),w(h,e,n),{modules:h,version:r,errorCorrectionLevel:e,maskPattern:n,segments:o}}e.create=function(t,r){if(void 0===t||""===t)throw new Error("No input text");var e,n,o=i.M;return void 0!==r&&(o=i.from(r.errorCorrectionLevel,i.M),e=d.from(r.version),n=p.from(r.maskPattern),r.toSJISFunc&&R.setToSJISFunction(r.toSJISFunc)),a(t,e,o,n)}},{"../utils/buffer":28,"./alignment-pattern":2,"./bit-buffer":4,"./bit-matrix":5,"./error-correction-code":7,"./error-correction-level":8,"./finder-pattern":9,"./format-info":10,"./mask-pattern":13,"./mode":14,"./reed-solomon-encoder":18,"./segments":20,"./utils":21,"./version":23,isarray:33}],18:[function(t,r,e){var a=t("../utils/buffer"),u=t("./polynomial"),f=t("buffer").Buffer;function n(t){this.genPoly=void 0,this.degree=t,this.degree&&this.initialize(this.degree)}n.prototype.initialize=function(t){this.degree=t,this.genPoly=u.generateECPolynomial(this.degree)},n.prototype.encode=function(t){if(!this.genPoly)throw new Error("Encoder not initialized");var r=a.alloc(this.degree),e=f.concat([t,r],t.length+this.degree),n=u.mod(e,this.genPoly),o=this.degree-n.length;if(0<o){var i=a.alloc(this.degree);return n.copy(i,o),i}return n},r.exports=n},{"../utils/buffer":28,"./polynomial":16,buffer:30}],19:[function(t,r,e){var n="(?:[u3000-u303F]|[u3040-u309F]|[u30A0-u30FF]|[uFF00-uFFEF]|[u4E00-u9FAF]|[u2605-u2606]|[u2190-u2195]|u203B|[u2010u2015u2018u2019u2025u2026u201Cu201Du2225u2260]|[u0391-u0451]|[u00A7u00A8u00B1u00B4u00D7u00F7])+",o="(?:(?![A-Z0-9 $%*+\\-./:]|"+(n=n.replace(/u/g,"\\u"))+")(?:.|[\r\n]))+";e.KANJI=new RegExp(n,"g"),e.BYTE_KANJI=new RegExp("[^A-Z0-9 $%*+\\-./:]+","g"),e.BYTE=new RegExp(o,"g"),e.NUMERIC=new RegExp("[0-9]+","g"),e.ALPHANUMERIC=new RegExp("[A-Z $%*+\\-./:]+","g");var i=new RegExp("^"+n+"$"),a=new RegExp("^[0-9]+$"),u=new RegExp("^[A-Z0-9 $%*+\\-./:]+$");e.testKanji=function(t){return i.test(t)},e.testNumeric=function(t){return a.test(t)},e.testAlphanumeric=function(t){return u.test(t)}},{}],20:[function(t,r,f){var g=t("./mode"),o=t("./numeric-data"),i=t("./alphanumeric-data"),a=t("./byte-data"),u=t("./kanji-data"),s=t("./regex"),h=t("./utils"),c=t("dijkstrajs");function l(t){return unescape(encodeURIComponent(t)).length}function p(t,r,e){for(var n,o=[];null!==(n=t.exec(e));)o.push({data:n[0],index:n.index,mode:r,length:n[0].length});return o}function d(t){var r,e,n=p(s.NUMERIC,g.NUMERIC,t),o=p(s.ALPHANUMERIC,g.ALPHANUMERIC,t);e=h.isKanjiModeEnabled()?(r=p(s.BYTE,g.BYTE,t),p(s.KANJI,g.KANJI,t)):(r=p(s.BYTE_KANJI,g.BYTE,t),[]);var i=n.concat(o,r,e);return i.sort(function(t,r){return t.index-r.index}).map(function(t){return{data:t.data,mode:t.mode,length:t.length}})}function y(t,r){switch(r){case g.NUMERIC:return o.getBitsLength(t);case 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