V}Oc@s"dZddlmZdefdYZdefdYZdefdYZd efd YZd efd YZd efdYZ defdYZ de fdYZ defdYZ defdYZ defdYZdefdYZdS(sANTLR3 exception hierarchyi(tINVALID_TOKEN_TYPEtBacktrackingFailedcBseZdZRS(s0@brief Raised to signal failed backtrack attempt(t__name__t __module__t__doc__(((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR$stRecognitionExceptioncBs8eZdZddZdZdZeeZRS(s@brief The root of the ANTLR exception hierarchy. To avoid English-only error messages and to generally make things as flexible as possible, these exceptions are not created with strings, but rather the information necessary to generate an error. Then the various reporting methods in Parser and Lexer can be overridden to generate a localized error message. For example, MismatchedToken exceptions are built with the expected token type. So, don't expect getMessage() to return anything. Note that as of Java 1.4, you can access the stack trace, which means that you can compute the complete trace of rules from the start symbol. This gives you considerable context information with which to generate useful error messages. ANTLR generates code that throws exceptions upon recognition error and also generates code to catch these exceptions in each rule. If you want to quit upon first error, you can turn off the automatic error handling mechanism using rulecatch action, but you still need to override methods mismatch and recoverFromMismatchSet. In general, the recognition exceptions can track where in a grammar a problem occurred and/or what was the expected input. While the parser knows its state (such as current input symbol and line info) that state can change before the exception is reported so current token index is computed and stored at exception time. From this info, you can perhaps print an entire line of input not just a single token, for example. Better to just say the recognizer had a problem and then let the parser figure out a fancy report. cCsptj|d|_d|_d|_d|_d|_d|_d|_ t |_ |dk rl||_|j|_ddl m }m}ddlm}t|j|r|jjd|_|jj|_|jj |_ nt|j|r |j|jqlt|j|rT|jjd|_|jj|_|jj |_ ql|jjd|_ndS(Ni(t TokenStreamt CharStream(tTreeNodeStreami(t Exceptiont__init__tNonetinputtindexttokentnodetctlinetcharPositionInLinetFalsetapproximateLineInfotantlr3.streamsRRt antlr3.treeRt isinstancetLTt$extractInformationFromTreeNodeStreamtLA(tselfR RRR((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR Ks2           c Csddlm}m}ddlm}|jd|_|j}|j|j}|dk r%||_ |j dkr d}|j|}x|dk r|j|} | dk r| j dkr| j |_ | j |_ t |_Pn|d8}|j|}qWq|j |_ |j |_ nt|j|r||jj |_ |jj |_ t|j|r|jj |_ qn<|j|j} |j|j} |d| d| |_ dS(Ni(tTreet CommonTree(t CommonTokeniittypettext(RRRt antlr3.tokensRRRtadaptortgetTokenR RRRtTrueRRtgetTypetgetText( RtnodesRRRR"tpayloadtit priorNodet priorPayloadRR ((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyRs:        cCsuddlm}ddlm}t|j|r<|jjSt|j|rj|jj}|j |j S|j SdS(s=Return the token type or char of the unexpected input elementi(R(RN( RRRRRR RRt treeAdaptorR%RR(RRRR"((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pytgetUnexpectedTypes  N( RRRR R RR-tpropertytunexpectedType(((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR*s  = ) tMismatchedTokenExceptioncBs&eZdZdZdZeZRS(s/@brief A mismatched char or Token or tree node.cCstj||||_dS(N(RR t expecting(RR1R ((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR scCsd|j|jfS(Ns MismatchedTokenException(%r!=%r)(R-R1(R((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyt__str__s(RRRR R2t__repr__(((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR0s  tUnwantedTokenExceptioncBs&eZdZdZdZeZRS(s*An extra token while parsing a TokenStreamcCs|jS(N(R(R((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pytgetUnexpectedTokenscCsVd|j}|jtkr%d}n|jdkrBdd|fSd|jj|fS(Ns , expected %sts"UnwantedTokenException(found=%s%s)(R1RRR R (Rtexp((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR2s   (RRRR5R2R3(((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR4s  tMissingTokenExceptioncBs/eZdZdZdZdZeZRS(so We were expecting a token but it's not found. The current token is actually what we wanted next. cCs tj|||||_dS(N(R0R tinserted(RR1R R9((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR scCs|jS(N(R1(R((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pytgetMissingTypescCsV|jdk r5|jdk r5d|j|jjfS|jdk rRd|jjSdS(Ns(MissingTokenException(inserted %r at %r)sMissingTokenException(at %r)R8(R9R RR (R((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR2s (RRRR R:R2R3(((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR8s    tMismatchedRangeExceptioncBs&eZdZdZdZeZRS(s?@brief The next token does not match a range of expected types.cCs&tj||||_||_dS(N(RR tatb(RR<R=R ((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR s cCsd|j|j|jfS(Ns,MismatchedRangeException(%r not in [%r..%r])(R-R<R=(R((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR2 s(RRRR R2R3(((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR;s  tMismatchedSetExceptioncBs&eZdZdZdZeZRS(s=@brief The next token does not match a set of expected types.cCstj||||_dS(N(RR R1(RR1R ((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR scCsd|j|jfS(Ns$MismatchedSetException(%r not in %r)(R-R1(R((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR2s(RRRR R2R3(((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR>s  tMismatchedNotSetExceptioncBseZdZdZeZRS(s/@brief Used for remote debugger deserializationcCsd|j|jfS(Ns!MismatchedNotSetException(%r!=%r)(R-R1(R((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR2's(RRRR2R3(((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR?$s tNoViableAltExceptioncBs&eZdZdZdZeZRS(s4@brief Unable to decide which alternative to choose.cCs/tj||||_||_||_dS(N(RR tgrammarDecisionDescriptiontdecisionNumbert stateNumber(RRARBRCR ((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR 1s  cCsd|j|jfS(NsNoViableAltException(%r!=[%r])(R/RA(R((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR2;s(RRRR R2R3(((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR@.s tEarlyExitExceptioncBseZdZdZRS(s>@brief The recognizer did not match anything for a (..)+ loop.cCstj||||_dS(N(RR RB(RRBR ((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR Es(RRRR (((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyRDBstFailedPredicateExceptioncBs&eZdZdZdZeZRS(s@brief A semantic predicate failed during validation. Validation of predicates occurs when normally parsing the alternative just like matching a token. Disambiguating predicate evaluation occurs when we hoist a predicate into a prediction decision. cCs&tj||||_||_dS(N(RR truleNamet predicateText(RR RFRG((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR Ts cCsd|jd|jdS(NsFailedPredicateException(s,{s}?)(RFRG(R((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR2[s(RRRR R2R3(((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyREKs  tMismatchedTreeNodeExceptioncBs&eZdZdZdZeZRS(s;@brief The next tree mode does not match the expected type.cCstj||||_dS(N(RR R1(RR1R ((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR cscCsd|j|jfS(Ns#MismatchedTreeNodeException(%r!=%r)(R-R1(R((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyR2hs(RRRR R2R3(((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyRH`s  N(Rtantlr3.constantsRR RRR0R4R8R;R>R?R@RDRERH(((sZ/afs/athena.mit.edu/user/x/a/xavid/.local/lib/python2.7/site-packages/antlr3/exceptions.pyts