comparison mercurial/util.py @ 21914:10e99839a7a4

util.re: add an escape method

The escape method in at least one of the modules called 're2' is in C. This
means it is significantly faster than the Python code written in 're'.

An upcoming patch will have benchmarks.

21913:50aad4609224

                return re2.compile(pat)
            except re2.error:
                pass
        return remod.compile(pat, flags)

re = _re()

_fspathcache = {}
def fspath(name, root):
    '''Get name in the case stored in the filesystem

21914:10e99839a7a4

                return re2.compile(pat)
            except re2.error:
                pass
        return remod.compile(pat, flags)

    @propertycache
    def escape(self):
        '''Return the version of escape corresponding to self.compile.

        This is imperfect because whether re2 or re is used for a particular
        function depends on the flags, etc, but it's the best we can do.
        '''
        global _re2
        if _re2 is None:
            self._checkre2()
        if _re2:
            return re2.escape
        else:
            return remod.escape

re = _re()

_fspathcache = {}
def fspath(name, root):
    '''Get name in the case stored in the filesystem