SickGear/sickbeard/name_parser/parser.py
echel0n a92de48aec Added new show option that allows you to choose if you want to search via scene numbering or indexer numbering.
Scene numbers and scene absolute numbers now only display if prooper show options are selected.

Scene absolute numbers are now able to be set by user.

Fixed issues with user set scene numbers not correctly applying to episode objects.
2014-05-30 00:50:27 -07:00

557 lines
21 KiB
Python

# Author: Nic Wolfe <nic@wolfeden.ca>
# URL: http://code.google.com/p/sickbeard/
#
# This file is part of SickRage.
#
# SickRage is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# SickRage 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
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with SickRage. If not, see <http://www.gnu.org/licenses/>.
import datetime
import os.path
import re
import threading
import regexes
import time
import sickbeard
from sickbeard import logger, helpers, scene_numbering, db
from sickbeard.exceptions import EpisodeNotFoundByAbsoluteNumberException
from dateutil import parser
nameparser_lock = threading.Lock()
class NameParser(object):
ALL_REGEX = 0
NORMAL_REGEX = 1
SPORTS_REGEX = 2
ANIME_REGEX = 3
def __init__(self, file_name=True, show=None, useIndexers=False):
regexMode = self.ALL_REGEX
if show and show.is_anime:
regexMode = self.ANIME_REGEX
elif show and show.is_sports:
regexMode = self.SPORTS_REGEX
elif show and not show.is_anime and not show.is_sports:
regexMode = self.NORMAL_REGEX
self.file_name = file_name
self.regexMode = regexMode
self.compiled_regexes = {}
self._compile_regexes(self.regexMode)
self.showList = sickbeard.showList
self.useIndexers = useIndexers
self.show = show
def clean_series_name(self, series_name):
"""Cleans up series name by removing any . and _
characters, along with any trailing hyphens.
Is basically equivalent to replacing all _ and . with a
space, but handles decimal numbers in string, for example:
>>> cleanRegexedSeriesName("an.example.1.0.test")
'an example 1.0 test'
>>> cleanRegexedSeriesName("an_example_1.0_test")
'an example 1.0 test'
Stolen from dbr's tvnamer
"""
series_name = re.sub("(\D)\.(?!\s)(\D)", "\\1 \\2", series_name)
series_name = re.sub("(\d)\.(\d{4})", "\\1 \\2", series_name) # if it ends in a year then don't keep the dot
series_name = re.sub("(\D)\.(?!\s)", "\\1 ", series_name)
series_name = re.sub("\.(?!\s)(\D)", " \\1", series_name)
series_name = series_name.replace("_", " ")
series_name = re.sub("-$", "", series_name)
series_name = re.sub("^\[.*\]", "", series_name)
return series_name.strip()
def _compile_regexes(self, regexMode):
if regexMode <= self.ALL_REGEX:
logger.log(u"Using ALL regexs", logger.DEBUG)
uncompiled_regex = [regexes.anime_regexes, regexes.sports_regexs, regexes.normal_regexes]
elif regexMode == self.NORMAL_REGEX:
logger.log(u"Using NORMAL regexs", logger.DEBUG)
uncompiled_regex = [regexes.normal_regexes]
elif regexMode == self.SPORTS_REGEX:
logger.log(u"Using SPORTS regexs", logger.DEBUG)
uncompiled_regex = [regexes.sports_regexs]
elif regexMode == self.ANIME_REGEX:
logger.log(u"Using ANIME regexs", logger.DEBUG)
uncompiled_regex = [regexes.anime_regexes, regexes.normal_regexes]
else:
logger.log(u"This is a programing ERROR. Fallback Using NORMAL regexs", logger.ERROR)
uncompiled_regex = [regexes.normal_regexes]
for regexItem in uncompiled_regex:
for regex_type, regex in regexItem.items():
try:
self.compiled_regexes[regex_type]
except:
self.compiled_regexes[regex_type] = {}
for (cur_pattern_name, cur_pattern) in regex:
try:
cur_regex = re.compile(cur_pattern, re.VERBOSE | re.IGNORECASE)
except re.error, errormsg:
logger.log(u"WARNING: Invalid episode_pattern, %s. %s" % (errormsg, cur_pattern))
else:
self.compiled_regexes[regex_type].update({cur_pattern_name: cur_regex})
def _parse_string(self, name):
if not name:
return
for cur_regex_type, cur_regexes in self.compiled_regexes.items():
for cur_regex_name, cur_regex in cur_regexes.items():
match = cur_regex.match(name)
if not match:
continue
result = ParseResult(name)
result.which_regex = [cur_regex_name]
named_groups = match.groupdict().keys()
if 'series_name' in named_groups:
result.series_name = match.group('series_name')
if result.series_name:
result.series_name = self.clean_series_name(result.series_name)
cur_show = helpers.get_show_by_name(result.series_name, useIndexer=self.useIndexers)
if self.show and cur_show:
if self.show.indexerid != cur_show.indexerid:
logger.log(
u"I expected an episode of the show " + self.show.name + " but the parser thinks its the show " + cur_show.name + ". I will continue thinking its " + self.show.name,
logger.WARNING)
else:
result.show = self.show
if 'season_num' in named_groups:
tmp_season = int(match.group('season_num'))
if cur_regex_name == 'bare' and tmp_season in (19, 20):
continue
result.season_number = tmp_season
if 'ep_num' in named_groups:
ep_num = self._convert_number(match.group('ep_num'))
if 'extra_ep_num' in named_groups and match.group('extra_ep_num'):
result.episode_numbers = range(ep_num, self._convert_number(match.group('extra_ep_num')) + 1)
else:
result.episode_numbers = [ep_num]
if 'ep_ab_num' in named_groups:
ep_ab_num = self._convert_number(match.group('ep_ab_num'))
if 'extra_ab_ep_num' in named_groups and match.group('extra_ab_ep_num'):
result.ab_episode_numbers = range(ep_ab_num,
self._convert_number(match.group('extra_ab_ep_num')) + 1)
else:
result.ab_episode_numbers = [ep_ab_num]
if 'sports_event_id' in named_groups:
sports_event_id = match.group('sports_event_id')
if sports_event_id:
result.sports_event_id = int(match.group('sports_event_id'))
if 'sports_event_name' in named_groups:
result.sports_event_name = match.group('sports_event_name')
if result.sports_event_name:
result.sports_event_name = self.clean_series_name(result.sports_event_name)
if 'sports_event_date' in named_groups:
sports_event_date = match.group('sports_event_date')
if sports_event_date:
try:
result.sports_event_date = parser.parse(sports_event_date, fuzzy=True).date()
except:
continue
if 'air_year' in named_groups and 'air_month' in named_groups and 'air_day' in named_groups:
year = int(match.group('air_year'))
month = int(match.group('air_month'))
day = int(match.group('air_day'))
try:
dtStr = '%s-%s-%s' % (year, month, day)
result.air_date = datetime.datetime.strptime(dtStr, "%Y-%m-%d").date()
except:
continue
if 'extra_info' in named_groups:
tmp_extra_info = match.group('extra_info')
# Show.S04.Special or Show.S05.Part.2.Extras is almost certainly not every episode in the season
if tmp_extra_info and cur_regex_name == 'season_only' and re.search(
r'([. _-]|^)(special|extra)s?\w*([. _-]|$)', tmp_extra_info, re.I):
continue
result.extra_info = tmp_extra_info
if 'release_group' in named_groups:
result.release_group = match.group('release_group')
if result.show and result.show.is_anime and cur_regex_type in ['anime', 'normal']:
return result
elif result.show and result.show.is_sports and cur_regex_type == 'sports':
return result
elif cur_regex_type == 'normal':
return result
return None
def _combine_results(self, first, second, attr):
# if the first doesn't exist then return the second or nothing
if not first:
if not second:
return None
else:
return getattr(second, attr)
# if the second doesn't exist then return the first
if not second:
return getattr(first, attr)
a = getattr(first, attr)
b = getattr(second, attr)
# if a is good use it
if a != None or (type(a) == list and len(a)):
return a
# if not use b (if b isn't set it'll just be default)
else:
return b
def _unicodify(self, obj, encoding="utf-8"):
if isinstance(obj, basestring):
if not isinstance(obj, unicode):
obj = unicode(obj, encoding)
return obj
def _convert_number(self, org_number):
"""
Convert org_number into an integer
org_number: integer or representation of a number: string or unicode
Try force converting to int first, on error try converting from Roman numerals
returns integer or 0
"""
try:
# try forcing to int
if org_number:
number = int(org_number)
else:
number = 0
except:
# on error try converting from Roman numerals
roman_to_int_map = (('M', 1000), ('CM', 900), ('D', 500), ('CD', 400), ('C', 100),
('XC', 90), ('L', 50), ('XL', 40), ('X', 10),
('IX', 9), ('V', 5), ('IV', 4), ('I', 1)
)
roman_numeral = str(org_number).upper()
number = 0
index = 0
for numeral, integer in roman_to_int_map:
while roman_numeral[index:index + len(numeral)] == numeral:
number += integer
index += len(numeral)
return number
def parse(self, name, cache_result=True):
name = self._unicodify(name)
cached = name_parser_cache.get(name)
if cached:
return cached
# break it into parts if there are any (dirname, file name, extension)
dir_name, file_name = os.path.split(name)
ext_match = re.match('(.*)\.\w{3,4}$', file_name)
if ext_match and self.file_name:
base_file_name = ext_match.group(1)
else:
base_file_name = file_name
# use only the direct parent dir
dir_name = os.path.basename(dir_name)
# set up a result to use
final_result = ParseResult(name)
# try parsing the file name
file_name_result = self._parse_string(base_file_name)
# parse the dirname for extra info if needed
dir_name_result = self._parse_string(dir_name)
# build the ParseResult object
final_result.air_date = self._combine_results(file_name_result, dir_name_result, 'air_date')
final_result.ab_episode_numbers = self._combine_results(file_name_result, dir_name_result, 'ab_episode_numbers')
# sports event title
final_result.sports_event_id = self._combine_results(file_name_result, dir_name_result, 'sports_event_id')
final_result.sports_event_name = self._combine_results(file_name_result, dir_name_result, 'sports_event_name')
final_result.sports_event_date = self._combine_results(file_name_result, dir_name_result, 'sports_event_date')
if not final_result.air_date:
final_result.season_number = self._combine_results(file_name_result, dir_name_result, 'season_number')
final_result.episode_numbers = self._combine_results(file_name_result, dir_name_result, 'episode_numbers')
# if the dirname has a release group/show name I believe it over the filename
final_result.series_name = self._combine_results(dir_name_result, file_name_result, 'series_name')
final_result.extra_info = self._combine_results(dir_name_result, file_name_result, 'extra_info')
final_result.release_group = self._combine_results(dir_name_result, file_name_result, 'release_group')
final_result.which_regex = []
if final_result == file_name_result:
final_result.which_regex = file_name_result.which_regex
elif final_result == dir_name_result:
final_result.which_regex = dir_name_result.which_regex
else:
if file_name_result:
final_result.which_regex += file_name_result.which_regex
if dir_name_result:
final_result.which_regex += dir_name_result.which_regex
final_result.show = self._combine_results(file_name_result, dir_name_result, 'show')
# if there's no useful info in it then raise an exception
if final_result.season_number == None and not final_result.episode_numbers and final_result.air_date == None and not final_result.series_name:
raise InvalidNameException("Unable to parse " + name.encode(sickbeard.SYS_ENCODING, 'xmlcharrefreplace'))
if cache_result:
name_parser_cache.add(name, final_result)
return final_result
class ParseResult(object):
def __init__(self,
original_name,
series_name=None,
sports_event_id=None,
sports_event_name=None,
sports_event_date=None,
season_number=None,
episode_numbers=None,
extra_info=None,
release_group=None,
air_date=None,
ab_episode_numbers=None,
show=None
):
self.original_name = original_name
self.series_name = series_name
self.season_number = season_number
if not episode_numbers:
self.episode_numbers = []
else:
self.episode_numbers = episode_numbers
if not ab_episode_numbers:
self.ab_episode_numbers = []
else:
self.ab_episode_numbers = ab_episode_numbers
self.extra_info = extra_info
self.release_group = release_group
self.air_date = air_date
self.sports_event_id = sports_event_id
self.sports_event_name = sports_event_name
self.sports_event_date = sports_event_date
self.which_regex = None
self.show = show
def __eq__(self, other):
if not other:
return False
if self.series_name != other.series_name:
return False
if self.season_number != other.season_number:
return False
if self.episode_numbers != other.episode_numbers:
return False
if self.extra_info != other.extra_info:
return False
if self.release_group != other.release_group:
return False
if self.air_date != other.air_date:
return False
if self.sports_event_id != other.sports_event_id:
return False
if self.sports_event_name != other.sports_event_name:
return False
if self.sports_event_date != other.sports_event_date:
return False
if self.ab_episode_numbers != other.ab_episode_numbers:
return False
if self.show != other.show:
return False
return True
def __str__(self):
if self.series_name != None:
to_return = self.series_name + u' - '
else:
to_return = u''
if self.season_number != None:
to_return += 'S' + str(self.season_number)
if self.episode_numbers and len(self.episode_numbers):
for e in self.episode_numbers:
to_return += 'E' + str(e)
if self.air_by_date:
to_return += str(self.air_date)
if self.sports:
to_return += str(self.sports_event_name)
to_return += str(self.sports_event_id)
to_return += str(self.sports_event_date)
if self.ab_episode_numbers:
to_return += ' absolute_numbers: ' + str(self.ab_episode_numbers)
if self.extra_info:
to_return += ' - ' + self.extra_info
if self.release_group:
to_return += ' (' + self.release_group + ')'
to_return += ' [ABD: ' + str(self.air_by_date) + ']'
to_return += ' [SPORTS: ' + str(self.sports) + ']'
to_return += ' [ANIME: ' + str(self.is_anime) + ']'
to_return += ' [whichReg: ' + str(self.which_regex) + ']'
return to_return.encode('utf-8')
def convert(self):
if not self.show:
return self # can't convert with out a show object
if self.air_by_date or self.sports: # scene numbering does not apply to air-by-date or sports shows
return self
new_episode_numbers = []
new_season_numbers = []
new_absolute_numbers = []
if self.show.is_anime and len(self.ab_episode_numbers):
for epAbsNo in self.ab_episode_numbers:
a = scene_numbering.get_indexer_absolute_numbering(self.show.indexerid, self.show.indexer, epAbsNo)
new_absolute_numbers.append(a)
if self.season_number and len(self.episode_numbers):
for epNo in self.episode_numbers:
(s, e) = scene_numbering.get_indexer_numbering(self.show.indexerid, self.show.indexer,
self.season_number,
epNo)
new_episode_numbers.append(e)
new_season_numbers.append(s)
# need to do a quick sanity check here. It's possible that we now have episodes
# from more than one season (by tvdb numbering), and this is just too much
# for sickbeard, so we'd need to flag it.
new_season_numbers = list(set(new_season_numbers)) # remove duplicates
if len(new_season_numbers) > 1:
raise InvalidNameException("Scene numbering results episodes from "
"seasons %s, (i.e. more than one) and "
"sickrage does not support this. "
"Sorry." % (str(new_season_numbers)))
# I guess it's possible that we'd have duplicate episodes too, so lets
# eliminate them
new_episode_numbers = list(set(new_episode_numbers))
new_episode_numbers.sort()
# maybe even duplicate absolute numbers so why not do them as well
new_absolute_numbers = list(set(new_absolute_numbers))
new_absolute_numbers.sort()
if len(new_absolute_numbers):
self.ab_episode_numbers = new_absolute_numbers
if len(new_season_numbers) and len(new_episode_numbers):
self.episode_numbers = new_episode_numbers
self.season_number = new_season_numbers[0]
return self
def _is_air_by_date(self):
if self.season_number == None and len(self.episode_numbers) == 0 and self.air_date:
return True
return False
air_by_date = property(_is_air_by_date)
def _is_anime(self):
if self.ab_episode_numbers:
if self.show and self.show.is_anime:
return True
return False
is_anime = property(_is_anime)
def _is_sports(self):
if self.sports_event_date:
return True
return False
sports = property(_is_sports)
class NameParserCache(object):
_previous_parsed = {}
_cache_size = 100
def add(self, name, parse_result):
self._previous_parsed[name] = parse_result
_current_cache_size = len(self._previous_parsed)
if _current_cache_size > self._cache_size:
for i in range(_current_cache_size - self._cache_size):
del self._previous_parsed[self._previous_parsed.keys()[0]]
def get(self, name):
if name in self._previous_parsed:
logger.log("Using cached parse result for: " + name, logger.DEBUG)
return self._previous_parsed[name]
name_parser_cache = NameParserCache()
class InvalidNameException(Exception):
"The given name is not valid"
class MultipleSceneShowResults(Exception):
pass
class MultipleSceneEpisodeResults(Exception):
pass