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BIP 21: Allow empty addresses and query parameters

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Empty addresses should be valid for compatibility with  BIP 72.

Empty query parameters should also be valid, since they are harmless,
and clients already accept them.

With these changes, bitcoin:?& would be a valid (but useless) URI.
This commit is contained in:
William Swanson 2014-03-10 18:10:27 -07:00
parent 6f15f98b12
commit 116129c687
1 changed files with 4 additions and 4 deletions
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@ -37,14 +37,14 @@ Elements of the query component may contain characters outside the valid range.
(See also [[#Simpler syntax|a simpler representation of syntax]]) (See also [[#Simpler syntax|a simpler representation of syntax]])
bitcoinurn = "bitcoin:" bitcoinaddress [ "?" bitcoinparams ] bitcoinurn = "bitcoin:" bitcoinaddress [ "?" bitcoinparams ]
bitcoinaddress = base58 *base58 bitcoinaddress = *base58
bitcoinparams = bitcoinparam [ "&" bitcoinparams ] bitcoinparams = bitcoinparam [ "&" bitcoinparams ]
bitcoinparam = amountparam | labelparam | messageparam | otherparam | reqparam bitcoinparam = [ amountparam / labelparam / messageparam / otherparam / reqparam ]
amountparam = "amount=" *digit [ "." *digit ] amountparam = "amount=" *digit [ "." *digit ]
labelparam = "label=" *qchar labelparam = "label=" *qchar
messageparam = "message=" *qchar messageparam = "message=" *qchar
otherparam = qchar *qchar "=" *qchar otherparam = qchar *qchar [ "=" *qchar ]
reqparam = "req-" qchar *qchar "=" *qchar reqparam = "req-" qchar *qchar [ "=" *qchar ]
Here, "qchar" corresponds to valid characters of an RFC 3986 URI query component, excluding the "=" and "&" characters, which this BIP takes as separators. Here, "qchar" corresponds to valid characters of an RFC 3986 URI query component, excluding the "=" and "&" characters, which this BIP takes as separators.