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b2d1204a9f
We're about to introduce new messages which are gated by options (not just single fields). Ignore them for the purposes of parsing. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
97 lines
3.1 KiB
Python
Executable File
97 lines
3.1 KiB
Python
Executable File
#! /usr/bin/python3
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# Simple script to parse specs and produce CSV files.
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# Released by Rusty Russell under CC0:
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# https://creativecommons.org/publicdomain/zero/1.0/
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from optparse import OptionParser
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import sys
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import re
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import fileinput
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def main(options, args=None, output=sys.stdout, lines=None):
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# Example inputs:
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# 1. type: 17 (`error`) (`optionXXX`)
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# 2. data:
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# * [`8`:`channel_id`]
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# * [`4`:`len`]
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# * [`len`:`data`] (optionXXX)
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#
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# 1. type: PERM|NODE|3 (`required_node_feature_missing`)
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message = None
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havedata = None
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typeline = re.compile(
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'1\. type: (?P<value>[-0-9A-Za-z_|]+) \(`(?P<name>[A-Za-z_]+)`\)( \(`?(?P<option>[^)`]*)`?\))?')
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dataline = re.compile(
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'\s+\* \[`(?P<size>[_a-z0-9*+]+)`:`(?P<name>[_a-z0-9]+)`\]( \(`?(?P<option>[^)`]*)`?\))?')
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if lines is None:
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lines = fileinput.input(args)
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for i, line in enumerate(lines):
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line = line.rstrip()
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linenum = i+1
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match = typeline.fullmatch(line)
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if match:
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if message is not None:
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raise ValueError('{}:Found a message while I was already in a '
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'message'.format(linenum))
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message = match.group('name')
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if options.output_types:
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print("{},{}".format(
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match.group('name'),
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match.group('value')), file=output)
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havedata = None
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elif message is not None and havedata is None:
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if line != '2. data:':
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message = None
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havedata = True
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dataoff = 0
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off_extraterms = ""
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elif message is not None and havedata is not None:
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match = dataline.fullmatch(line)
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if match:
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if options.output_fields:
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print("{},{}{},{},{}".format(
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message,
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dataoff,
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off_extraterms,
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match.group('name'),
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match.group('size')), file=output, end='')
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if match.group('option'):
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print(",{}".format(match.group('option')), file=output)
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else:
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print('', file=output)
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# Size can be variable.
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try:
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dataoff += int(match.group('size'))
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except ValueError:
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# Offset has variable component.
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off_extraterms = off_extraterms + "+" + match.group('size')
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else:
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message = None
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if __name__ == "__main__":
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parser = OptionParser()
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parser.add_option(
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"--message-types",
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action="store_true",
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dest="output_types",
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default=False,
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help="Output MESSAGENAME,VALUE for every message"
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)
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parser.add_option(
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"--message-fields",
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action="store_true",
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dest="output_fields",
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default=False,
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help="Output MESSAGENAME,OFFSET,FIELDNAME,SIZE for every message"
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)
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(options, args) = parser.parse_args()
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main(options, args)
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