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SedRegex: work around "nothing to repeat" errors on Python < 2.7.6

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Source: https://stackoverflow.com/questions/3675144/regex-error-nothing-to-repeat and https://bugs.python.org/issue18647

From: 335fc6e3da
This commit is contained in:
James Lu 2016-07-15 23:44:25 -07:00
parent 1499141f09
commit fa13c68ebc
1 changed files with 4 additions and 2 deletions
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6
plugins/SedRegex/plugin.py
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@ -44,9 +44,11 @@ try:
except ImportError:
_ = lambda x: x
# Note: {0,2} is used for matching the flags instead of "*" to work around a Python bug in versions
# lower than 2.7.6: see https://stackoverflow.com/questions/3675144/regex-error-nothing-to-repeat
# and https://bugs.python.org/issue18647
SED_REGEX = re.compile(r"^(?:(?P<nick>.+?)[:,] )?s(?P<delim>[^\w\s])(?P<pattern>.*?)(?P=delim)"
r"(?P<replacement>.*?)(?:(?P=delim)(?P<flags>[gi]*))?$")
r"(?P<replacement>.*?)(?:(?P=delim)(?P<flags>[gi]{0,2}))?$")
class SedRegex(callbacks.PluginRegexp):
"""History replacer using sed-style regex syntax."""