a ±Kbâ*ã @s ddlmZddlmZdgZz$ddlmZddlmZdd„Z Wn0e yrZ ze fdd„Z WYd Z [ n d Z [ 00d d „Z d d „Z Gdd„deƒZdd„Zd S)é)ÚParserI)ÚTreeÚ BllipParser)ÚRerankingParser©Úget_unified_model_parameterscCsdS©N©r r r ú/lib/python3.9/site-packages/nltk/parse/bllip.pyÚ_ensure_bllip_import_or_errorZsr cCstd|ƒ‚dS)Nz&Couldn't import bllipparser module: %s)Ú ImportError)Úier r r r `sNc Csbz t|ƒD]\}}| d¡q Wn<ty\}z$td|›d|›dƒ|‚WYd}~n d}~00dS)NÚasciizToken z (zH) is non-ASCII. BLLIP Parser currently doesn't support non-ASCII inputs.)Ú enumerateÚencodeÚUnicodeEncodeErrorÚ ValueError)ÚwordsÚiÚwordÚer r r Ú _ensure_asciidsÿýrcCst t|jƒ¡Sr)rZ fromstringÚstrZ ptb_parse)Ú scored_parser r r Ú_scored_parse_to_nltk_treeosrc@s8eZdZdZd dd„Zdd„Zdd„Zed d d „ƒZdS) rzÑ Interface for parsing with BLLIP Parser. BllipParser objects can be constructed with the ``BllipParser.from_unified_model_dir`` class method or manually using the ``BllipParser`` constructor. NcCsVtƒ|p i}|pi}tƒ|_|jj|fi|¤Ž|rR|rR|jjf||dœ|¤ŽdS)aÈ Load a BLLIP Parser model from scratch. You'll typically want to use the ``from_unified_model_dir()`` class method to construct this object. :param parser_model: Path to parser model directory :type parser_model: str :param reranker_features: Path the reranker model's features file :type reranker_features: str :param reranker_weights: Path the reranker model's weights file :type reranker_weights: str :param parser_options: optional dictionary of parser options, see ``bllipparser.RerankingParser.RerankingParser.load_parser_options()`` for more information. :type parser_options: dict(str) :param reranker_options: optional dictionary of reranker options, see ``bllipparser.RerankingParser.RerankingParser.load_reranker_model()`` for more information. :type reranker_options: dict(str) )Zfeatures_filenameZweights_filenameN)r rÚrrpZload_parser_modelZload_reranker_model)ÚselfZ parser_modelZreranker_featuresZreranker_weightsÚparser_optionsÚreranker_optionsr r r Ú__init__zs!þýzBllipParser.__init__ccs,t|ƒ|j |¡}|D]}t|ƒVqdS)aŸ Use BLLIP Parser to parse a sentence. Takes a sentence as a list of words; it will be automatically tagged with this BLLIP Parser instance's tagger. :return: An iterator that generates parse trees for the sentence from most likely to least likely. :param sentence: The sentence to be parsed :type sentence: list(str) :rtype: iter(Tree) N)rrÚparser)rÚsentenceÚ nbest_listrr r r r ©s  zBllipParser.parsec csfg}i}t|ƒD]&\}\}}| |¡|dur|||<qt|ƒ|j ||¡}|D]}t|ƒVqRdS)a  Use BLLIP to parse a sentence. Takes a sentence as a list of (word, tag) tuples; the sentence must have already been tokenized and tagged. BLLIP will attempt to use the tags provided but may use others if it can't come up with a complete parse subject to those constraints. You may also specify a tag as ``None`` to leave a token's tag unconstrained. :return: An iterator that generates parse trees for the sentence from most likely to least likely. :param sentence: Input sentence to parse as (word, tag) pairs :type sentence: list(tuple(str, str)) :rtype: iter(Tree) N)rÚappendrrZ parse_taggedr) rZword_and_tag_pairsrZtag_maprrÚtagr"rr r r Ú tagged_parse»s  zBllipParser.tagged_parsecCst|ƒ\}}}||||||ƒS)a( Create a ``BllipParser`` object from a unified parsing model directory. Unified parsing model directories are a standardized way of storing BLLIP parser and reranker models together on disk. See ``bllipparser.RerankingParser.get_unified_model_parameters()`` for more information about unified model directories. :return: A ``BllipParser`` object using the parser and reranker models in the model directory. :param model_dir: Path to the unified model directory. :type model_dir: str :param parser_options: optional dictionary of parser options, see ``bllipparser.RerankingParser.RerankingParser.load_parser_options()`` for more information. :type parser_options: dict(str) :param reranker_options: optional dictionary of reranker options, see ``bllipparser.RerankingParser.RerankingParser.load_reranker_model()`` for more information. :type reranker_options: dict(str) :rtype: BllipParser r)ÚclsÚ model_dirrrZparser_model_dirZreranker_features_filenameZreranker_weights_filenamer r r Úfrom_unified_model_dir×süûz"BllipParser.from_unified_model_dir)NNNNN)NN) Ú__name__Ú __module__Ú __qualname__Ú__doc__rr r%Ú classmethodr(r r r r rssú /ÿc Csddlm}|dƒj}tdƒt |¡}tdƒd ¡}d ¡}d ¡}|||fD]L}td d  |¡ƒzt|  |¡ƒ}t|ƒWqRt yœtd ƒYqR0qRt |  |¡ƒD]\}} td || fƒq®td t|  ddg¡ƒƒtdt|  ddg¡ƒƒtdt|  ddg¡ƒƒdS)z8This assumes the Python module bllipparser is installed.r)Úfindzmodels/bllip_wsj_no_auxzLoading BLLIP Parsing models...zDone.z#British left waffles on Falklands .z"I saw the man with the telescope .z # ! ? : -z Sentence: %rú z(parse failed)z parse %d: %szforcing 'tree' to be 'NN':)ÚAN)ÚtreeZNNz.forcing 'A' to be 'DT' and 'tree' to be 'NNP':)r0ZDT)r1ÚNNPzforcing 'A' to be 'NNP':)r0r2)r1NN) Z nltk.datar.ÚpathÚprintrr(ÚsplitÚjoinÚnextr Ú StopIterationrr%) r.r'ZbllipZ sentence1Z sentence2Zfail1r!r1rr r r r Údemoÿs:     þþþr9)Znltk.parse.apirZ nltk.treerÚ__all__Z bllipparserrZbllipparser.RerankingParserrr r r rrrr9r r r r Ú s  H   "