Limnoria/plugins/SedRegex/constants.py
James Lu 9adb4f0e8c SedRegex: ignore regexp-like messages sent before the plugin is active
Reported by fred` at #limnoria.

This adds a new message tag applied to all messages SedRegex has seen, in addition to the one for marking messages parsed as a regexp.
SedRegex will now look through the message history and check that all messages without the "seen" tag are not in fact a regexp, before
marking it as seen so that it doesn't do repeated work.
2020-10-12 19:45:18 -07:00

30 lines
874 B
Python
Executable File

#!/usr/bin/env python3
import re
TAG_SEEN = 'SedRegex.seen'
TAG_IS_REGEX = 'SedRegex.isRegex'
SED_REGEX = re.compile(
# This part matches an optional nick followed by ":" or ",", used to direct replacement
# at a particular user.
r"^(?:(?P<nick>.+?)[:,] )?"
# Match and save the delimiter (any one symbol) as a named group
r"s(?P<delim>[^\w\s])"
# Match the pattern to replace, which can be any string up to the first instance of the delimiter
r"(?P<pattern>(?:(?!(?P=delim)).)*)(?P=delim)"
# Ditto with the replacement
r"(?P<replacement>(?:(?!(?P=delim)).)*)"
# Optional final delimiter plus flags at the end
r"(?:(?P=delim)(?P<flags>[a-z]*))?"
)
if __name__ == '__main__':
print("This is the full regex used by the plugin; paste it into your favourite regex tester "
"for debugging:")
print(SED_REGEX)