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tools/extract-formats.py: allow '.' in length fields.

Browse source 
In practice, using '...*type' is the clearest and simplest way to specify
the common case of "the rest of the TLV is an array of 'type'", rather
than some arbitrary expression with a made-up length field.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2019-07-30 17:01:30 +09:30
parent 9491348d27
commit d498d2ac56
1 changed files with 5 additions and 5 deletions
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10
tools/extract-formats.py
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@ -30,7 +30,7 @@ tlvline = re.compile(
subtypeline = re.compile(
'(1\.|\*) subtype: `(?P<name>[A-Za-z0-9_]+)`( \(`?(?P<option>[^)`]*)`\))?')
dataline = re.compile(
'\s+([0-9]+\.|\*) \[`(?P<typefield>[-_a-zA-Z0-9*+]+)`:`(?P<name>[_a-z0-9]+)`\]( \(`?(?P<option>[^)`]*)`?\))?')
'\s+([0-9]+\.|\*) \[`(?P<typefield>[-._a-zA-Z0-9*+]+)`:`(?P<name>[_a-z0-9]+)`\]( \(`?(?P<option>[^)`]*)`?\))?')
datastartline = re.compile(
'(2\.|\*) data:')
tlvtypesline = re.compile(
@ -80,14 +80,14 @@ def print_csv(output, fmt, option):
# * [`chain_hash`:`chain_hash`]
# * [`u16`:`len`]
# * [`len*byte`:`encoded_short_ids`]
# * [`tlvs`:`query_short_channel_ids_tlvs`]
# * [`query_short_channel_ids_tlvs`:`tlvs`]
#
# output:
# msgtype,query_short_channel_ids,261,gossip_queries
# msgdata,query_short_channel_ids,chain_hash,chain_hash,
# msgdata,query_short_channel_ids,len,u16,
# msgdata,query_short_channel_ids,encoded_short_ids,byte,len
# msgdata,query_short_channel_ids,query_short_channel_ids_tlvs,tlvs,
# msgdata,query_short_channel_ids,tlvs,query_short_channel_ids_tlvs,
def parse_type(genline, output, name, value, option, in_tlv=None):
_, line = next(genline)
@ -126,12 +126,12 @@ def parse_type(genline, output, name, value, option, in_tlv=None):
# 1. type: 1 (`query_flags`)
# 2. data:
# * [`byte`:`encoding_type`]
# * [`tlv_len-1*byte`:`encoded_query_flags`]
# * [`...*byte`:`encoded_query_flags`]
#
# output:
# tlvtype,query_short_channel_ids_tlvs,query_flags,1
# tlvdata,query_short_channel_ids_tlvs,query_flags,encoding_type,byte,
# tlvdata,query_short_channel_ids_tlvs,query_flags,encoded_query_flags,byte,tlv_len-1
# tlvdata,query_short_channel_ids_tlvs,query_flags,encoded_query_flags,byte,...
def parse_tlv(genline, output, name, option):
i, line = next(genline)