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lazyre.py
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53 lines (43 loc) · 2.02 KB
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# The MIT License
#
# Copyright (c) 2015-2021 Sebastian Ramacher
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
importre
fromcollections.abcimportIterator
fromfunctoolsimportcached_property
fromreimportPattern,Match
classLazyReCompile:
"""Compile regular expressions on first use
This class allows one to store regular expressions and compiles them on
first use."""
def__init__(self,regex:str,flags:int=0)->None:
self.regex=regex
self.flags=flags
@cached_property
defcompiled(self)->Pattern[str]:
returnre.compile(self.regex,self.flags)
deffinditer(self,*args,**kwargs)->Iterator[Match[str]]:
returnself.compiled.finditer(*args,**kwargs)
defsearch(self,*args,**kwargs)->Match[str]|None:
returnself.compiled.search(*args,**kwargs)
defmatch(self,*args,**kwargs)->Match[str]|None:
returnself.compiled.match(*args,**kwargs)
defsub(self,*args,**kwargs)->str:
returnself.compiled.sub(*args,**kwargs)