o i+"@s~dZddlZddlmZdddZdddZdd d Zdd d Zd dZdddZ ddZ ddZ e dkr=e e dSdS)z Utility functions for batch-processing sentences: parsing and extraction of the semantic representation of the root node of the the syntax tree, followed by evaluation of the semantic representation in a first-order model. Nevaluatec Csnddlm}ddlm}m}t||r||}n|||d}g}|D]}|} t|| } | | q"|S)a Convert input sentences into syntactic trees. :param inputs: sentences to be parsed :type inputs: list(str) :param grammar: ``FeatureGrammar`` or name of feature-based grammar :type grammar: nltk.grammar.FeatureGrammar :rtype: list(nltk.tree.Tree) or dict(list(str)): list(Tree) :return: a mapping from input sentences to a list of ``Tree`` instances. rFeatureGrammar)FeatureChartParser load_parsertrace) nltk.grammarr nltk.parserr isinstancesplitlistparseappend) inputsgrammarr rrrcpparsessenttokenssyntreesrH/var/www/edux/Edux_v2/venv/lib/python3.10/site-packages/nltk/sem/util.py parse_sentss     rSEMcCsXddlm}|}t||sJz||WSty+t|ddtd|Yw)a Find the semantic representation at the root of a tree. :param syntree: a parse ``Tree`` :param semkey: the feature label to use for the root semantics in the tree :return: the semantic representation at the root of a ``Tree`` :rtype: sem.Expression r)FeatStructNonterminal )endz'has no specification for the feature %s)r rlabelr KeyErrorprint)syntreesemkeyrnoderrr root_semrep4s    r%csfddt|||dDS)a Add the semantic representation to each syntactic parse tree of each input sentence. :param inputs: a list of sentences :type inputs: list(str) :param grammar: ``FeatureGrammar`` or name of feature-based grammar :type grammar: nltk.grammar.FeatureGrammar :return: a mapping from sentences to lists of pairs (parse-tree, semantic-representations) :rtype: list(list(tuple(nltk.tree.Tree, nltk.sem.logic.ConstantExpression))) csg|] }fdd|DqS)csg|] }|t|fqSr)r%).0synr#rr Vsz.interpret_sents...r)r&rr(rrr)Usz#interpret_sents..r)r)rrr#r rr(rinterpret_sentsIs r*csfddt||DS)a Add the truth-in-a-model value to each semantic representation for each syntactic parse of each input sentences. :param inputs: a list of sentences :type inputs: list(str) :param grammar: ``FeatureGrammar`` or name of feature-based grammar :type grammar: nltk.grammar.FeatureGrammar :return: a mapping from sentences to lists of triples (parse-tree, semantic-representations, evaluation-in-model) :rtype: list(list(tuple(nltk.tree.Tree, nltk.sem.logic.ConstantExpression, bool or dict(str): bool))) cs"g|] }fdd|DqS)c s*g|]\}}||jd|dfqS)z%srr)r&r'sem assignmentmodelr rrr)hsz-evaluate_sents...r)r&interpretationsr,rrr)gs z"evaluate_sents..)r*)rrr.r-r rr,revaluate_sents[s r0cCsddddddddd hfd d d hfd ddhfdddhfdhdfdhdfdhdfdhdfdhdfg}t|}|j}t||at|adS)N)johnb1)maryg1)suzieg2)fidod1)tessd2)noosangirlr4r6boyr2b2dogr8r:barkwalk>r2r8r6chase>r?r4r4r8r6r:r2r4see>r?r:r:r2r6r<rGr4r2in>r2r<r?r<r:r<with>r2r8r8r2rGrL)r ValuationdomainModelm0 Assignmentg0)vvaldomrrr demo_model0ps,          r]utf8cCs\t|d|}dd|D}Wdn1swYdd|D}dd|D}|S)NrcSsg|]}|qSr)rstripr&lrrrr)szread_sents..cSsg|] }t|dkr|qSr)lenrarrrr)cSsg|] }|ddks|qS)r#rrarrrr)re)codecsopen)filenameencodingfpsentsrrr read_sentss rmcCs`ddlm}|d}td|tdtdg|ddD]}|d\}}ttd |qd S) z Check that interpret_sents() is compatible with legacy grammars that use a lowercase 'sem' feature. Define 'test.fcfg' to be the following rrz1 % start S S[sem=] -> 'hello' zReading grammar: %sz********************hellor+r(zoutput: N)r r fromstringr!r*)rgreadingr'r+rrrdemo_legacy_grammars    rrc Csddl}ddlm}d}||d}|jdddddddd|jd d d d d d|jdddddd|jdddddd|jdddddd|jddd d!d"d#|jd$d%d d&d'd#|jd(d)d*d+d,d#|jd-d.d*d/d0d#|\}}d1}tgd2}d3}|jr|j} |jr|j}|j rt d4|j |durt | }t } t } |jrt||| | |jd5} nt|||jd5} t|D]N\}}d6}td7|t||jr| |D] \}}}t|trt|}td8||ft||d67}qq| |D]\}}td8||f|d67}qqdS)9Nr) OptionParserz, Parse and evaluate some sentences. ) descriptionTdefault)rbetasyntracesemtracedemor sentencesz-dz--demorzzBchoose demo D; omit this for the default demo, or specify 'chat80'D)desthelpmetavarz-gz--gramrzread in grammar GGz-mz--modelr.z"import model M (omit '.py' suffix)Mz-sz --sentencesr{z"read in a file of test sentences SSz-ez --no-eval store_falserzjust do a syntactic analysis)actionr}r~z-bz--no-beta-reductionrwzdon't carry out beta-reductionz-tz --syntracecountrxz.set syntactic tracing on; requires '-e' optionz-Tz --semtraceryzset semantic tracing onz------------------------------)zFido sees a boy with MaryzJohn sees Maryzevery girl chases a dogzevery boy chases a girlzJohn walks with a girl in Noosaz who walksz"grammars/sample_grammars/sem2.fcfgzimport %s as modelrz Sentence: %sz%d: %s)sysoptparsers set_defaults add_option parse_argsr]r{rr.execrmrWrYrr0ryr*rx enumerater!r dictsetkeys)rrsrtoptsoptionsargsSPACERrlgramfile sentsfiler.rp evaluationssemrepsirr<r"semrepvaluerrrrzs           rz__main__rc)r)rr)r^) __doc__rgnltk.semrrr%r*r0r]rmrrrz__name__rrrrs      ! ~