³ò ŒB_Kc@sodefd„ƒYZdefd„ƒYZdd d„ƒYZdefd„ƒYZdefd „ƒYZd S( tAbstractCCGCategorycBsVeZdZd„Zd„Zd„Zd„Zd„Zd„Zd„Z d„Z RS( s; Interface for categories in combinatory grammars. cCs td‚dS(Ns,AbstractCCGCategory is an abstract interface(tAssertionError(tself((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyt is_primitivescCs td‚dS(Ns,AbstractCCGCategory is an abstract interface(R(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyt is_functionscCs td‚dS(Ns,AbstractCCGCategory is an abstract interface(R(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pytis_varscCs td‚dS(Ns,AbstractCCGCategory is an abstract interface(R(Rt substitutions((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyt substitutescCs td‚dS(Ns,AbstractCCGCategory is an abstract interface(R(Rtother((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyt can_unify!scCs td‚dS(Ns,AbstractCCGCategory is an abstract interface(R(RR((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyt__cmp__%scCs td‚dS(Ns,AbstractCCGCategory is an abstract interface(R(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyt__str__(scCs td‚dS(Ns,AbstractCCGCategory is an abstract interface(R(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyt__hash__+s( t__name__t __module__t__doc__RRRRR R R R (((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRs       tCCGVarcBs†eZdZdZed„Zd„ZeeƒZd„Zd„Z d„Z d„Z d„Z d „Z d „Zd „Zd „ZRS( s Class representing a variable CCG category. Used for conjunctions (and possibly type-raising, if implemented as a unary rule). icCs|iƒ|_||_dS(sÄInitialize a variable (selects a new identifier) @param prim_only: a boolean that determines whether the variable is restricted to primitives @type prim_only: C{boolean} N(tnew_idt_idt _prim_only(Rt prim_only((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyt__init__7scCs|id|_|idS(Ni(t_maxID(tcls((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRAscCstS(N(tFalse(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRFscCstS(N(R(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRIscCstS(N(tTrue(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRLscCs0x)|D]!\}}||jo|SqqW|S(slIf there is a substitution corresponding to this variable, return the substituted category. ((RRtvartcat((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyROs    cCs-|iƒp |i o||fgSntS(sX If the variable can be replaced with other a substitution is returned. (RRtNone(RR((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR XscCs|iS(N(R(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pytid`scCs.t|tƒpdSnt|i|iƒƒS(Niÿÿÿÿ(t isinstanceRtcmpRR(RR((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR cscCs t|iƒS(N(thashR(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR hscCsdt|iƒS(Nt_var(tstrR(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR js(R RRRRRRt classmethodRRRRR RR R R (((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR/s         t DirectioncBsŒeZdZd„Zd„Zd„Zd„Zd„Zd„Zd„Z d„Z d „Z d „Z d „Z d „Zd „Zd„ZRS(s¨ Class representing the direction of a function application. Also contains maintains information as to which combinators may be used with the category. cCs||_||_dS(N(t_dirt_restrs(Rtdirt restrictions((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRss cCs |idjS(Nt/(R%(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyt is_forwardxscCs |idjS(Ns\(R%(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyt is_backwardzscCs|iS(N(R%(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR'}scCs|iS(s8A list of restrictions on the combinators. '.' denotes that permuting operations are disallowed ',' denotes that function composition is disallowed '_' denotes that the direction has variable restrictions. (This is redundant in the current implementation of type-raising) (R&(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pytrestrs€scCs |idjS(Nt_(R&(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyt is_variable‰scCsm|iƒod|iƒfgSnF|iƒod|iƒfgSn"|iƒ|iƒjogSndS(NR-(R.R,R(RR((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR s  cCsQ|iƒp|Snx5|D]-\}}|djot|i|ƒSqqW|S(NR-(R.R$R%(RtsubsRR,((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR™s   cCs d|ijS(Nt,(R&(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyt can_compose£scCs d|ijS(Nt.(R&(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyt can_cross¦scCs+t|i|if|iƒ|iƒfƒS(N(RR%R&R'R,tres(RR((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR ©s+cCst|it|iƒfƒS(N(R R%ttupleR&(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR ­scCs;d}x!|iD]}|t|ƒ}qWt|iƒ|S(Nt(R&R"R%(Rtr_strtr((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR °s  cCs8|idjotd|iƒSntd|iƒSdS(NR)s\(R%R$R&(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyt__neg__·s(R RRRR*R+R'R,R.R RR1R3R R R R9(((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR$ms          tPrimitiveCategorycBsteZdZgd„Zd„Zd„Zd„Zd„Zd„Zd„Z d„Z d „Z d „Z d „Z RS( s« Class representing primitive categories. Takes a string representation of the category, and a list of strings specifying the morphological subcategories. cCs||_||_dS(N(t_categR&(RtcategR(((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRÄs cCstS(N(R(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRÈscCstS(N(R(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRËscCstS(N(R(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRÎscCs|iS(N(R&(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR,ÑscCs|iS(N(R;(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR<ÔscCs|S(N((RR/((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRØscCs‡|iƒpdSn|iƒo||fgSn|iƒ|iƒjo7x,|iD]!}||iƒjodSqVqVWgSndS(N(RRRR<R&R,(RRtrestr((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR Þs    cCsFt|tƒpdSnt|i|iƒf|iƒ|iƒfƒS(Niÿÿÿÿ(RR:RR;R,R<(RR((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR êscCst|it|iƒfƒS(N(R R;R5R&(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR ðscCs;|igjot|iƒSnt|iƒt|iƒS(N(R&R"R;(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR ós(R RRRRRRR,R<RR R R R (((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR:¾s         tFunctionalCategorycBszeZdZd„Zd„Zd„Zd„Zd„Zd„Zd„Z d„Z d „Z d „Z d „Z d „ZRS( sœ Class that represents a function application category. Consists of argument and result categories, together with an application direction. cCs||_||_||_dS(N(t_rest_argR%(RR4targR'((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRþs  cCstS(N(R(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRscCstS(N(R(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRscCstS(N(R(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR scCsI|ii|ƒ}|ii|ƒ}|ii|ƒ}t|||iƒS(N(R?RR%R@R>(RR/tsub_restsub_dirtsub_arg((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRscCsÄ|iƒo||fgSn|iƒo•|ii|iƒƒ}|ii|iƒƒ}|djoT|djoG|ii |ƒi|i ƒi |ƒƒ}|djo ||Sq¼qÀndS(N( RRR?R R4R%R'RR@RRA(RRtsatsdtsb((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR s  * cCs|iS(N(R@(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyRA#scCs|iS(N(R?(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR4&scCs|iS(N(R%(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR')scCsRt|tƒpdSnt|i|i|if|iƒ|iƒ|iƒfƒS(Niÿÿÿÿ( RR>RR@R%R?RAR'R4(RR((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR ,scCst|i|i|ifƒS(N(R R@R%R?(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR 1scCs/dt|iƒt|iƒt|iƒdS(Nt(t)(R"R?R%R@(R((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR 4s(R RRRRRRRR RAR4R'R R R (((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyR>øs          N((tobjectRRR$R:R>(((s"/p/zhu/06/nlp/nltk/nltk/ccg/api.pyss'>Q: