panni
76 lines
2.2 KiB
Python
76 lines
2.2 KiB
Python
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
#
|
|
# GuessIt - A library for guessing information from filenames
|
|
# Copyright (c) 2013 Nicolas Wack <wackou@gmail.com>
|
|
# Copyright (c) 2013 Rémi Alvergnat <toilal.dev@gmail.com>
|
|
#
|
|
# GuessIt is free software; you can redistribute it and/or modify it under
|
|
# the terms of the Lesser GNU General Public License as published by
|
|
# the Free Software Foundation; either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# GuessIt is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# Lesser GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the Lesser GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
|
|
from __future__ import absolute_import, division, print_function, unicode_literals
|
|
|
|
import re
|
|
|
|
group_delimiters = ['()', '[]', '{}']
|
|
|
|
# separator character regexp
|
|
sep = r'[][,)(}:{+ /~/\._-]' # regexp art, hehe :D
|
|
|
|
_dash = '-'
|
|
_psep = '[\W_]?'
|
|
|
|
|
|
def build_or_pattern(patterns, escape=False):
|
|
"""Build a or pattern string from a list of possible patterns
|
|
"""
|
|
or_pattern = []
|
|
for pattern in patterns:
|
|
if not or_pattern:
|
|
or_pattern.append('(?:')
|
|
else:
|
|
or_pattern.append('|')
|
|
or_pattern.append('(?:%s)' % re.escape(pattern) if escape else pattern)
|
|
or_pattern.append(')')
|
|
return ''.join(or_pattern)
|
|
|
|
|
|
def compile_pattern(pattern, enhance=True):
|
|
"""Compile and enhance a pattern
|
|
|
|
:param pattern: Pattern to compile (regexp).
|
|
:type pattern: string
|
|
|
|
:param pattern: Enhance pattern before compiling.
|
|
:type pattern: string
|
|
|
|
:return: The compiled pattern
|
|
:rtype: regular expression object
|
|
"""
|
|
return re.compile(enhance_pattern(pattern) if enhance else pattern, re.IGNORECASE)
|
|
|
|
|
|
def enhance_pattern(pattern):
|
|
"""Enhance pattern to match more equivalent values.
|
|
|
|
'-' are replaced by '[\W_]?', which matches more types of separators (or none)
|
|
|
|
:param pattern: Pattern to enhance (regexp).
|
|
:type pattern: string
|
|
|
|
:return: The enhanced pattern
|
|
:rtype: string
|
|
"""
|
|
return pattern.replace(_dash, _psep)
|