SickGear/lib/guessit/transfo/post_process.py

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#!/usr/bin/env python2
# -*- coding: utf-8 -*-
#
# GuessIt - A library for guessing information from filenames
# Copyright (c) 2012 Nicolas Wack <wackou@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 unicode_literals
from guessit.patterns import subtitle_exts
from guessit.textutils import reorder_title, find_words
import logging
log = logging.getLogger(__name__)
def process(mtree):
# 1- try to promote language to subtitle language where it makes sense
for node in mtree.nodes():
if 'language' not in node.guess:
continue
def promote_subtitle():
# pylint: disable=W0631
node.guess.set('subtitleLanguage', node.guess['language'],
confidence=node.guess.confidence('language'))
del node.guess['language']
# - if we matched a language in a file with a sub extension and that
# the group is the last group of the filename, it is probably the
# language of the subtitle
# (eg: 'xxx.english.srt')
if (mtree.node_at((-1,)).value.lower() in subtitle_exts and
node == mtree.leaves()[-2]):
promote_subtitle()
# - if we find the word 'sub' before the language, and in the same explicit
# group, then upgrade the language
explicit_group = mtree.node_at(node.node_idx[:2])
group_str = explicit_group.value.lower()
if ('sub' in find_words(group_str) and
0 <= group_str.find('sub') < (node.span[0] - explicit_group.span[0])):
promote_subtitle()
# - if a language is in an explicit group just preceded by "st",
# it is a subtitle language (eg: '...st[fr-eng]...')
try:
idx = node.node_idx
previous = mtree.node_at((idx[0], idx[1] - 1)).leaves()[-1]
if previous.value.lower()[-2:] == 'st':
promote_subtitle()
except IndexError:
pass
# 2- ", the" at the end of a series title should be prepended to it
for node in mtree.nodes():
if 'series' not in node.guess:
continue
node.guess['series'] = reorder_title(node.guess['series'])