ofc@sdZdZddlZddlZddlmZmZmZmZm Z m Z ddl m Z ddl m Z ejjejjedZd efd YZd Zd efd YZiejd6ejd6ejd6dd6ZdZdZdZdS(sPattern compiler. The grammer is taken from PatternGrammar.txt. The compiler compiles a pattern to a pytree.*Pattern instance. s#Guido van Rossum iNi(tdrivertliteralsttokenttokenizetparsetgrammar(tpytree(tpygramsPatternGrammar.txttPatternSyntaxErrorcBseZRS((t__name__t __module__(((s'/usr/lib64/python2.7/lib2to3/patcomp.pyRsc cswttjtjtjf}tjtj|j}x7|D]/}|\}}}}}||kr@|Vq@q@WdS(s6Tokenizes a string suppressing significant whitespace.N( tsetRtNEWLINEtINDENTtDEDENTRtgenerate_tokenstStringIOtreadline( tinputtskipttokenst quintuplettypetvaluetstarttendt line_text((s'/usr/lib64/python2.7/lib2to3/patcomp.pyttokenize_wrapper!s   tPatternCompilercBsAeZedZeedZdZddZdZ RS(cCs^tj||_tj|j|_tj|_tj|_ tj |jdt |_dS(s^Initializer. Takes an optional alternative filename for the pattern grammar. tconvertN( Rt load_grammarRRtSymbolstsymstpython_grammart pygrammartpython_symbolstpysymstDrivertpattern_convert(tselft grammar_file((s'/usr/lib64/python2.7/lib2to3/patcomp.pyt__init__-s   cCs}t|}y|jj|d|}Wn(tjk rR}tt|nX|rl|j||fS|j|SdS(s=Compiles a pattern string to a nested pytree.*Pattern object.tdebugN(RRt parse_tokensRt ParseErrorRtstrt compile_node(R'RR*t with_treeRtrootte((s'/usr/lib64/python2.7/lib2to3/patcomp.pytcompile_pattern8s c CsT|j|jjkr%|jd}n|j|jjkrg|jdddD]}|j|^qQ}t|dkr|dStjg|D]}|g^qdddd}|j S|j|jj kr=g|jD]}|j|^q}t|dkr|dStj|gdddd}|j S|j|jj kr|j |jd}tj |}|j Sd}|j} t| dkr| djtjkr| dj}| d} nd} t| dkr| dj|jjkr| d} | d } n|j | | }| dk r2| j} | d} | jtjkrod} tj}nx| jtjkrd} tj}nT| jtjkr|j| d} }t| d kr|j| d}qn| dks|dkr2|j }tj|ggd| d|}q2n|dk rJ||_n|j S( sXCompiles a node, recursively. This is one big switch on the node type. iNiitmintmaxiii(RR tMatchertchildrent AlternativesR.tlenRtWildcardPatterntoptimizet Alternativet NegatedUnitt compile_basictNegatedPatterntNoneRtEQUALRtRepeatertSTARtHUGEtPLUStLBRACEtget_inttname(R'tnodetchtaltstatptunitstpatternRGtnodestrepeatR6tchildR3R4((s'/usr/lib64/python2.7/lib2to3/patcomp.pyR.Ds^21 %   (  +        '  cCs|d}|jtjkrJttj|j}tjt ||S|jtj krX|j}|j r|t krt d|n|drt dntjt |S|dkrd}nF|jdst|j|d}|dkrt d|qn|dr?|j|djdg}nd}tj||Sna|jdkrx|j|dS|jd kr|j|d}tj|ggd dd dSdS( NisInvalid token: %risCan't have details for tokentanyt_sInvalid symbol: %rt(t[R3R4(RRtSTRINGtunicodeRt evalStringRRt LeafPatternt_type_of_literaltNAMEtisuppert TOKEN_MAPRR?t startswithtgetattrR$R.R6t NodePatternR9(R'RORPRHRRtcontentt subpattern((s'/usr/lib64/python2.7/lib2to3/patcomp.pyR=s8          cCs t|jS(N(tintR(R'RH((s'/usr/lib64/python2.7/lib2to3/patcomp.pyRFsN( R R t_PATTERN_GRAMMAR_FILER)tFalseR2R.R?R=RF(((s'/usr/lib64/python2.7/lib2to3/patcomp.pyR+s   G #R[RVtNUMBERtTOKENcCs9|djrtjS|tjkr1tj|SdSdS(Ni(tisalphaRR[RtopmapR?(R((s'/usr/lib64/python2.7/lib2to3/patcomp.pyRZs  cCsW|\}}}}|s'||jkr=tj||d|Stj||d|SdS(s9Converts raw node information to a Node or Leaf instance.tcontextN(t number2symbolRtNodetLeaf(Rt raw_node_infoRRRjR6((s'/usr/lib64/python2.7/lib2to3/patcomp.pyR&scCstj|S(N(RR2(RN((s'/usr/lib64/python2.7/lib2to3/patcomp.pyR2s( t__doc__t __author__tosRtpgen2RRRRRRtRRtpathtjointdirnamet__file__Rdt ExceptionRRtobjectRR[RVRfR?R]RZR&R2(((s'/usr/lib64/python2.7/lib2to3/patcomp.pyt s$  .