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SickRage/lib/guessit/transfo/__init__.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 import base_text_type, Guess
from guessit.patterns import canonical_form
from guessit.textutils import clean_string
import logging
log = logging.getLogger(__name__)
def found_property(node, name, confidence):
node.guess = Guess({name: node.clean_value}, confidence=confidence)
log.debug('Found with confidence %.2f: %s' % (confidence, node.guess))
def format_guess(guess):
"""Format all the found values to their natural type.
For instance, a year would be stored as an int value, etc...
Note that this modifies the dictionary given as input.
"""
for prop, value in guess.items():
if prop in ('season', 'episodeNumber', 'year', 'cdNumber',
'cdNumberTotal', 'bonusNumber', 'filmNumber'):
guess[prop] = int(guess[prop])
elif isinstance(value, base_text_type):
if prop in ('edition',):
value = clean_string(value)
guess[prop] = canonical_form(value).replace('\\', '')
return guess
def find_and_split_node(node, strategy, logger):
string = ' %s ' % node.value # add sentinels
for matcher, confidence in strategy:
if getattr(matcher, 'use_node', False):
result, span = matcher(string, node)
else:
result, span = matcher(string)
if result:
# readjust span to compensate for sentinels
span = (span[0] - 1, span[1] - 1)
if isinstance(result, Guess):
if confidence is None:
confidence = result.confidence(list(result.keys())[0])
else:
if confidence is None:
confidence = 1.0
guess = format_guess(Guess(result, confidence=confidence))
msg = 'Found with confidence %.2f: %s' % (confidence, guess)
(logger or log).debug(msg)
node.partition(span)
absolute_span = (span[0] + node.offset, span[1] + node.offset)
for child in node.children:
if child.span == absolute_span:
child.guess = guess
else:
find_and_split_node(child, strategy, logger)
return
class SingleNodeGuesser(object):
def __init__(self, guess_func, confidence, logger=None):
self.guess_func = guess_func
self.confidence = confidence
self.logger = logger
def process(self, mtree):
# strategy is a list of pairs (guesser, confidence)
# - if the guesser returns a guessit.Guess and confidence is specified,
# it will override it, otherwise it will leave the guess confidence
# - if the guesser returns a simple dict as a guess and confidence is
# specified, it will use it, or 1.0 otherwise
strategy = [ (self.guess_func, self.confidence) ]
for node in mtree.unidentified_leaves():
find_and_split_node(node, strategy, self.logger)