³ò 4ÒÇIc@sÆddkZddklZddklZdd„Zdd„Zd„Zedƒd „ƒZed ƒdd „ƒZ ed ƒdd „ƒZ edƒdd„ƒZ edƒdd„ƒZ dS(iÿÿÿÿN(t deprecated(taccuracyt/cCsJ|i|ƒ}|djo || ||diƒfSn |dfSdS(sÛ Given the string representation of a tagged token, return the corresponding tuple representation. The rightmost occurence of C{sep} in C{s} will be used to divide C{s} into a word string and a tag string. If C{sep} does not occur in C{s}, return C{(s, None)}. @type s: C{str} @param s: The string representaiton of a tagged token. @type sep: C{str} @param sep: The separator string used to separate word strings from tags. iiN(trfindtuppertNone(tstseptloc((s#/p/zhu/06/nlp/nltk/nltk/tag/util.pyt str2tuples  cCsM|\}}|djo|Sn)||jp td‚d|||fSdS(s Given the tuple representation of a tagged token, return the corresponding string representation. This representation is formed by concatenating the token's word string, followed by the separator, followed by the token's tag. (If the tag is None, then just return the bare word string.) @type tagged_token: C{(str, str)} @param tagged_token: The tuple representation of a tagged token. @type sep: C{str} @param sep: The separator string used to separate word strings from tags. stag may not contain sep!s%s%s%sN(RtAssertionError(t tagged_tokenRtwordttag((s#/p/zhu/06/nlp/nltk/nltk/tag/util.pyt tuple2str"s   cCs%g}|D]\}}||q ~S(s  Given a tagged sentence, return an untagged version of that sentence. I.e., return a list containing the first element of each tuple in C{tagged_sentence}. >>> untag([('John', 'NNP'), ('saw', 'VBD'), ('Mary', 'NNP')] ['John', 'saw', 'mary'] ((ttagged_sentencet_[1]twtt((s#/p/zhu/06/nlp/nltk/nltk/tag/util.pytuntag7s suse tagger.evaluate(gold)cCs |i|ƒS(N(tevaluate(ttaggertgold((s#/p/zhu/06/nlp/nltk/nltk/tag/util.pyRBss'Use nltk.tag.str2tuple(s, sep) instead.cCs t||ƒS(N(R (RR((s#/p/zhu/06/nlp/nltk/nltk/tag/util.pyt tag2tupleJss<Use [nltk.tag.str2tuple(t, sep) for t in s.split()] instead.cCs.g}|iƒD]}|t||ƒq~S(N(tsplitR (RRRR((s#/p/zhu/06/nlp/nltk/nltk/tag/util.pyt string2tagsNss<Use ' '.join(nltk.tag.tuple2str(w, sep) for w in t) instead.csdi‡fd†|DƒƒS(Nt c3s"x|]}t|ˆƒVqWdS(N(R(t.0R(R(s#/p/zhu/06/nlp/nltk/nltk/tag/util.pys Ts(tjoin(RR((Rs#/p/zhu/06/nlp/nltk/nltk/tag/util.pyt tags2stringRss?Use [nltk.tag.str2tuple(t, sep)[0] for t in s.split()] instead.cCs2g}|iƒD]}|t||ƒdq~S(Ni(RR (RRRR((s#/p/zhu/06/nlp/nltk/nltk/tag/util.pyt string2wordsVs( tretnltk.internalsRt nltk.metricsRt _accuracyR RRRRRR(((s#/p/zhu/06/nlp/nltk/nltk/tag/util.pys s