<s> """<STR_LIT>""" <EOL> from __future__ import print_function , division , absolute_import , unicode_literals <EOL> from future import standard_library <EOL> standard_library . install_aliases ( ) <EOL> from builtins import * <EOL> import operator <EOL> import re <EOL> import collections <EOL> from collections import Counter <EOL> from functools import reduce <EOL> def get_id_pairs ( track_list ) : <EOL> """<STR_LIT>""" <EOL> return [ ( t [ "<STR_LIT:id>" ] , t . get ( "<STR_LIT>" ) ) for t in track_list ] <EOL> def find_playlist_changes ( orig_tracks , modified_tracks ) : <EOL> """<STR_LIT>""" <EOL> s_pairs = get_id_pairs ( orig_tracks ) <EOL> d_pairs = get_id_pairs ( modified_tracks ) <EOL> s_count = Counter ( s_pairs ) <EOL> d_count = Counter ( d_pairs ) <EOL> to_del = s_count - d_count <EOL> to_add = d_count - s_count <EOL> to_keep = set ( s_count & d_count ) <EOL> return ( to_del , to_add , to_keep ) <EOL> def filter_song_md ( song , md_list = [ '<STR_LIT:id>' ] , no_singletons = True ) : <EOL> """<STR_LIT>""" <EOL> filtered = [ song [ md_type ] for md_type in md_list ] <EOL> if len ( md_list ) == <NUM_LIT:1> and no_singletons : <EOL> return filtered [ <NUM_LIT:0> ] <EOL> else : <EOL> return filtered <EOL> def build_song_rep ( song , md_list = [ '<STR_LIT:title>' , '<STR_LIT>' , '<STR_LIT>' ] , divider = "<STR_LIT>" ) : <EOL> """<STR_LIT>""" <EOL> filtered = filter_song_md ( song , md_list , no_singletons = False ) <EOL> return divider . join ( filtered ) <EOL> def reorder_to ( l , order ) : <EOL> """<STR_LIT>""" <EOL> return [ el [ <NUM_LIT:1> ] for el in sorted ( zip ( order , l ) , key = lambda el : el [ <NUM_LIT:0> ] ) ] <EOL> def build_queries_from ( f , regex , cap_types , cap_pr , encoding = '<STR_LIT:ascii>' ) : <EOL> """<STR_LIT>""" <EOL> queries = [ ] <EOL> for line in f : <EOL> matches = regex . match ( line ) <EOL> if matches : <EOL> query = reorder_to ( <EOL> list ( zip ( matches . groups ( ) , cap_types ) ) , <EOL> cap_pr ) <EOL> queries . append ( query ) <EOL> return queries <EOL> def build_query_rep ( query , divider = "<STR_LIT>" ) : <EOL> """<STR_LIT>""" <EOL> return divider . join ( [ el [ <NUM_LIT:0> ] for el in query ] ) <EOL> def compose ( * funcs , ** kfuncs ) : <EOL> """<STR_LIT>""" <EOL> return reduce ( lambda f , g : lambda * args , ** kaargs : f ( g ( * args , ** kaargs ) ) , funcs ) <EOL> class SongMatcher ( object ) : <EOL> """<STR_LIT>""" <EOL> def __init__ ( self , songs , log_metadata = [ '<STR_LIT:title>' , '<STR_LIT>' , '<STR_LIT>' ] ) : <EOL> """<STR_LIT>""" <EOL> self . library = songs <EOL> self . log_lines = [ ] <EOL> self . log_metadata = log_metadata <EOL> def build_log ( self ) : <EOL> """<STR_LIT>""" <EOL> encoded_lines = [ line . encode ( '<STR_LIT:utf-8>' ) for line in self . log_lines ] <EOL> return "<STR_LIT:\n>" . join ( encoded_lines ) <EOL> def build_song_for_log ( self , song ) : <EOL> """<STR_LIT>""" <EOL> return build_song_rep ( song , self . log_metadata ) <EOL> class SearchModifier ( object ) : <EOL> """<STR_LIT>""" <EOL> def __init__ ( self , q_t , s_t , comp ) : <EOL> self . comp = comp <EOL> self . q_t = q_t <EOL> self . s_t = s_t <EOL> ignore_caps = SearchModifier ( <EOL> str . lower , <EOL> str . lower , <EOL> operator . eq <EOL> ) <EOL> ignore_punc = SearchModifier ( <EOL> lambda q : re . sub ( r"<STR_LIT>" , "<STR_LIT>" , q ) , <EOL> lambda s : s , <EOL> lambda sd , q : re . search ( q , sd ) <EOL> ) <EOL> implemented_modifiers = ( ignore_caps , ignore_punc ) <EOL> auto_modifiers = implemented_modifiers <EOL> @ staticmethod <EOL> def manual_tiebreak ( query , results ) : <EOL> """<STR_LIT>""" <EOL> print ( ) <EOL> print ( "<STR_LIT>" ) <EOL> print ( build_query_rep ( query ) . encode ( '<STR_LIT:utf-8>' ) ) <EOL> print ( ) <EOL> print ( "<STR_LIT>" ) <EOL> print ( ) <EOL> print ( "<STR_LIT>" ) <EOL> menu_lines = [ ] <EOL> key = <NUM_LIT:1> <EOL> for song in results : <EOL> menu_lines . append ( <EOL> str ( key ) + <EOL> "<STR_LIT>" + <EOL> build_song_rep ( song ) . encode ( '<STR_LIT:utf-8>' ) ) <EOL> key += <NUM_LIT:1> <EOL> print ( "<STR_LIT:\n>" . join ( menu_lines ) ) <EOL> choice = - <NUM_LIT:1> <EOL> while not ( <NUM_LIT:0> <= choice <= len ( results ) ) : <EOL> try : <EOL> choice = int ( input ( "<STR_LIT>" ) ) <EOL> except ValueError : <EOL> pass <EOL> return None if choice == <NUM_LIT:0> else [ results [ choice - <NUM_LIT:1> ] ] <EOL> @ staticmethod <EOL> def no_tiebreak ( query , results ) : <EOL> return results <EOL> class TieBroken ( Exception ) : <EOL> def __init__ ( self , results ) : <EOL> self . results = results <EOL> QueryState = collections . namedtuple ( '<STR_LIT>' , '<STR_LIT>' ) <EOL> def query_library ( self , query , tie_breaker = no_tiebreak , modifiers = None , auto = False ) : <EOL> """<STR_LIT>""" <EOL> if not modifiers : <EOL> modifiers = [ ] <EOL> try : <EOL> if not auto : <EOL> return self . query_library_rec ( query , self . library , <EOL> self . QueryState ( query , tie_breaker , modifiers , auto ) ) <EOL> else : <EOL> current_mods = modifiers [ : ] <EOL> future_mods = ( m for m in self . auto_modifiers if m not in modifiers ) <EOL> while True : <EOL> results = self . query_library_rec ( <EOL> query , self . library , <EOL> self . QueryState ( query , tie_breaker , current_mods , auto ) ) <EOL> if not results : <EOL> try : <EOL> current_mods . append ( next ( future_mods ) ) <EOL> except StopIteration : <EOL> return results <EOL> elif len ( results ) == <NUM_LIT:1> : <EOL> return results <EOL> else : <EOL> try : <EOL> current_mods . append ( next ( future_mods ) ) <EOL> except StopIteration : <EOL> raise self . TieBroken ( tie_breaker ( query , results ) ) <EOL> next_results = self . query_library ( query , tie_breaker , current_mods , auto ) <EOL> if not next_results : <EOL> raise self . TieBroken ( tie_breaker ( query , results ) ) <EOL> else : <EOL> return next_results <EOL> except self . TieBroken as tie : <EOL> return tie . results <EOL> def query_library_rec ( self , query , library , state ) : <EOL> """<STR_LIT>""" <EOL> if len ( query ) == <NUM_LIT:0> : <EOL> return None <EOL> mods_to_apply = [ sm for sm in reversed ( state . mods ) ] <EOL> mods_to_apply . append ( self . SearchModifier ( <EOL> lambda q : q , <EOL> lambda sd : sd , <EOL> operator . eq ) ) <EOL> q_t = compose ( * list ( map ( ( lambda sm : sm . q_t ) , mods_to_apply ) ) ) <EOL> s_t = compose ( * list ( map ( ( lambda sm : sm . s_t ) , mods_to_apply ) ) ) <EOL> comp = mods_to_apply [ <NUM_LIT:0> ] . comp <EOL> q , md_type = query [ <NUM_LIT:0> ] <EOL> q_transformed = q_t ( q ) <EOL> results = [ s for s in library if comp ( s_t ( s [ md_type ] ) , q_transformed ) ] <EOL> if not results : <EOL> return None <EOL> if len ( results ) == <NUM_LIT:1> : <EOL> return [ results [ <NUM_LIT:0> ] ] <EOL> next_query = query [ <NUM_LIT:1> : ] <EOL> next_results = self . query_library_rec ( next_query , results , state ) <EOL> if not next_results : <EOL> if not state . auto : <EOL> raise self . TieBroken ( state . t_breaker ( state . orig , results ) ) <EOL> else : <EOL> return results <EOL> return next_results <EOL> def match ( self , queries , tie_breaker = manual_tiebreak , auto = True ) : <EOL> """<STR_LIT>""" <EOL> matches = [ ] <EOL> self . log_lines . append ( "<STR_LIT>" + str ( len ( queries ) ) + "<STR_LIT>" ) <EOL> for query in queries : <EOL> res = self . query_library ( query , tie_breaker , auto = auto ) <EOL> matches += res <EOL> alert = None <EOL> if res is None : <EOL> alert = "<STR_LIT>" <EOL> elif len ( res ) == <NUM_LIT:1> : <EOL> alert = "<STR_LIT>" <EOL> else : <EOL> alert = "<STR_LIT>" <EOL> self . log_lines . append ( alert + "<STR_LIT:U+0020>" + build_query_rep ( query ) ) <EOL> extra_info = None <EOL> if res : <EOL> for song in res : <EOL> self . log_lines . append ( <EOL> ( extra_info if extra_info else ( '<STR_LIT:U+0020>' * len ( alert ) ) ) + <EOL> "<STR_LIT:U+0020>" + <EOL> self . build_song_for_log ( song ) ) <EOL> elif extra_info : <EOL> self . log_lines . append ( extra_info ) <EOL> return matches </s>
