comparison mercurial/util.py @ 51623:59f846fbc11d

branching: merge stable into default

51607:a4b3b8dee0a8

    except OSError:
        return True


_re2_input = lambda x: x
try:
    import re2  # pytype: disable=import-error

    _re2 = None
except ImportError:

class _re:
    @staticmethod
    def _checkre2():
        global _re2
        global _re2_input
        if _re2 is not None:
            # we already have the answer
            return

        check_pattern = br'\[([^\[]+)\]'

            # the `fb-re2` project provides a re2 module that acccept sysstr
            check_pattern = pycompat.sysstr(check_pattern)
            check_input = pycompat.sysstr(check_input)
            _re2 = bool(re2.match(check_pattern, check_input))
            _re2_input = pycompat.sysstr

    def compile(self, pat, flags=0):
        """Compile a regular expression, using re2 if possible

        For best performance, use only re2-compatible regexp features. The

            if flags & remod.IGNORECASE:
                pat = b'(?i)' + pat
            if flags & remod.MULTILINE:
                pat = b'(?m)' + pat
            try:
                return re2.compile(_re2_input(pat))
            except re2.error:
                pass
        return remod.compile(pat, flags)

    @propertycache

51623:59f846fbc11d

    except OSError:
        return True


_re2_input = lambda x: x
# google-re2 will need to be tell to not output error on its own
_re2_options = None
try:
    import re2  # pytype: disable=import-error

    _re2 = None
except ImportError:

class _re:
    @staticmethod
    def _checkre2():
        global _re2
        global _re2_input
        global _re2_options
        if _re2 is not None:
            # we already have the answer
            return

        check_pattern = br'\[([^\[]+)\]'

            # the `fb-re2` project provides a re2 module that acccept sysstr
            check_pattern = pycompat.sysstr(check_pattern)
            check_input = pycompat.sysstr(check_input)
            _re2 = bool(re2.match(check_pattern, check_input))
            _re2_input = pycompat.sysstr
        try:
            quiet = re2.Options()
            quiet.log_errors = False
            _re2_options = quiet
        except AttributeError:
            pass

    def compile(self, pat, flags=0):
        """Compile a regular expression, using re2 if possible

        For best performance, use only re2-compatible regexp features. The

            if flags & remod.IGNORECASE:
                pat = b'(?i)' + pat
            if flags & remod.MULTILINE:
                pat = b'(?m)' + pat
            try:
                input_regex = _re2_input(pat)
                if _re2_options is not None:
                    compiled = re2.compile(input_regex, options=_re2_options)
                else:
                    compiled = re2.compile(input_regex)
                return compiled
            except re2.error:
                pass
        return remod.compile(pat, flags)

    @propertycache