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Viewing changes to bzrlib/lazy_regex.py

  • Committer: Alexander Belchenko
  • Date: 2011-03-27 10:09:00 UTC
  • mto: (5759.1.1 integration)
  • mto: This revision was merged to the branch mainline in revision 5760.
  • Revision ID: bialix@ukr.net-20110327100900-x0pm733bhbgod48z
bzr.exe: add "site-packages" directory to sys.path to allow "installing" third-party libs required by some plugins

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import re
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from bzrlib import errors
 
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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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    def _real_re_compile(self, *args, **kwargs):
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        """Thunk over to the original re.compile"""
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        return _real_re_compile(*args, **kwargs)
 
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        try:
 
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            return _real_re_compile(*args, **kwargs)
 
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        except re.error, 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 errors.InvalidPattern('"' + args[0] + '" ' +str(e))
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    def __getattr__(self, attr):
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        """Return a member from the proxied regex object.