102 lines
3.7 KiB
Python
102 lines
3.7 KiB
Python
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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#
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# GuessIt - A library for guessing information from filenames
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# Copyright (c) 2012 Nicolas Wack <wackou@gmail.com>
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#
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# GuessIt is free software; you can redistribute it and/or modify it under
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# the terms of the Lesser GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# GuessIt is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# Lesser GNU General Public License for more details.
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#
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# You should have received a copy of the Lesser GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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from __future__ import unicode_literals
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from guessit import base_text_type, Guess
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from guessit.patterns import canonical_form
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from guessit.textutils import clean_string
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import logging
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log = logging.getLogger(__name__)
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def found_property(node, name, confidence):
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node.guess = Guess({name: node.clean_value}, confidence=confidence)
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log.debug('Found with confidence %.2f: %s' % (confidence, node.guess))
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def format_guess(guess):
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"""Format all the found values to their natural type.
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For instance, a year would be stored as an int value, etc...
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Note that this modifies the dictionary given as input.
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"""
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for prop, value in guess.items():
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if prop in ('season', 'episodeNumber', 'year', 'cdNumber',
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'cdNumberTotal', 'bonusNumber', 'filmNumber'):
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guess[prop] = int(guess[prop])
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elif isinstance(value, base_text_type):
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if prop in ('edition',):
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value = clean_string(value)
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guess[prop] = canonical_form(value).replace('\\', '')
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return guess
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def find_and_split_node(node, strategy, logger):
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string = ' %s ' % node.value # add sentinels
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for matcher, confidence in strategy:
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if getattr(matcher, 'use_node', False):
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result, span = matcher(string, node)
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else:
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result, span = matcher(string)
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if result:
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# readjust span to compensate for sentinels
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span = (span[0] - 1, span[1] - 1)
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if isinstance(result, Guess):
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if confidence is None:
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confidence = result.confidence(list(result.keys())[0])
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else:
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if confidence is None:
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confidence = 1.0
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guess = format_guess(Guess(result, confidence=confidence))
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msg = 'Found with confidence %.2f: %s' % (confidence, guess)
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(logger or log).debug(msg)
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node.partition(span)
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absolute_span = (span[0] + node.offset, span[1] + node.offset)
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for child in node.children:
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if child.span == absolute_span:
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child.guess = guess
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else:
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find_and_split_node(child, strategy, logger)
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return
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class SingleNodeGuesser(object):
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def __init__(self, guess_func, confidence, logger=None):
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self.guess_func = guess_func
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self.confidence = confidence
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self.logger = logger
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def process(self, mtree):
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# strategy is a list of pairs (guesser, confidence)
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# - if the guesser returns a guessit.Guess and confidence is specified,
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# it will override it, otherwise it will leave the guess confidence
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# - if the guesser returns a simple dict as a guess and confidence is
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# specified, it will use it, or 1.0 otherwise
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strategy = [ (self.guess_func, self.confidence) ]
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for node in mtree.unidentified_leaves():
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find_and_split_node(node, strategy, self.logger)
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