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class LazyRegex(object):
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"""A proxy around a real regex, which won't be compiled until accessed."""
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# These are the parameters on a real _sre.SRE_Pattern object, which we
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# will map to local members so that we don't have the proxy overhead.
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_regex_attributes_to_copy = [
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'__copy__', '__deepcopy__', 'findall', 'finditer', 'match',
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'scanner', 'search', 'split', 'sub', 'subn'
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'__copy__', '__deepcopy__', 'findall', 'finditer', 'match',
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'scanner', 'search', 'split', 'sub', 'subn'
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# We use slots to keep the overhead low. But we need a slot entry for
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# all of the attributes we will copy
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__slots__ = ['_real_regex', '_regex_args', '_regex_kwargs',
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] + _regex_attributes_to_copy
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] + _regex_attributes_to_copy
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def __init__(self, args, kwargs):
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"""Create a new proxy object, passing in the args to pass to re.compile
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except re.error as e:
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# raise InvalidPattern instead of re.error as this gives a
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# cleaner message to the user.
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raise InvalidPattern('"' + args[0] + '" ' +str(e))
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raise InvalidPattern('"' + args[0] + '" ' + str(e))
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def __getstate__(self):
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"""Return the state to use when pickling."""
added
removed
breezy/lazy_regex.py
