U bt@sUdZddlZddlZddlmZddlmZddlm Z ddl m Z ddl mZdd lmZejrxddlZdd lmZed Zejejd fed <edZedZedejZedejej BZ!edejej BZ"e dZ#e dZ$e dZ%e dZ&e dZ'e dZ(e dZ)e dZ*e dZ+e dZ,e dZ-e dZ.e dZ/e d Z0e d!Z1e d"Z2e d#Z3e d$Z4e d%Z5e d&Z6e d'Z7e d(Z8e d)Z9e d*Z:e d+Z;e d,Ze d/Z?e d0Z@e d1ZAe d2ZBe d3ZCe d4ZDe d5ZEe d6ZFe d7ZGe d8ZHe d9ZIe d:ZJe d;ZKe d<ZLe d=ZMe d>ZNe d?ZOe d@ZPe dAZQe dBZRe dCZSe#e;e'e*e3e2e6ez>=srAzoperators droppedr0r9ccs|]}t|VqdSN)reescaper=xr<r<r@ srGcCs t| SrB)lenrFr<r<r@rJ)keyr1) token_typereturncCsL|tkrt|Stdtdtdtdtdtdtdtdt dt d t d t d i ||S) Nzbegin of commentzend of commentr$zbegin of statement blockzend of statement blockzbegin of print statementzend of print statementzbegin of line statementzend of line statementztemplate data / textzend of template)reverse_operatorsTOKEN_COMMENT_BEGINTOKEN_COMMENT_END TOKEN_COMMENTTOKEN_LINECOMMENTTOKEN_BLOCK_BEGINTOKEN_BLOCK_ENDTOKEN_VARIABLE_BEGINTOKEN_VARIABLE_ENDTOKEN_LINESTATEMENT_BEGINTOKEN_LINESTATEMENT_END TOKEN_DATA TOKEN_EOFget)rMr<r<r@_describe_token_types< r]TokentokenrNcCs|jtkr|jSt|jS)z#Returns a description of the token.)type TOKEN_NAMEvaluer])r`r<r<r@describe_tokens rdexprrNcCs2d|kr&|dd\}}|tkr*|Sn|}t|S)z0Like `describe_token` but for token expressions.r8r)splitrbr])rfrarcr<r<r@describe_token_exprs rhrcrNcCstt|S)zsCount the number of newline characters in the string. 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Multiple environments can share the same lexer. r Nrmc Cs$tj}ttjtddd}tttdttt dtt t dtt t dtttdtttdg}t|}||j}||j}||j}||j} |jrdnd} |j|_|j|_|j|_d|d|d|d } d | gd d |D} d t|d| dttddt|dtdgtt|d|d|d|| d tt fdt|dt!dfdgt"t|d|d|d|| dt#dg|t$t|d| d| t%dg|t&t|d|d|d|d|| d ttt'dt|dt!dfdgt(t|dt)dg|t*t|dt+t,fdgi|_-dS)N)rFrNcSst|tjtjBSrB)rCcompileMSrIr<r<r@cszLexer.__init__..cz\n?rz(?Pz(\-|\+|)\s*raw\s*(?:\-z\s*|z))r9cSs"g|]\}}d|d|dqS)z(?P.rootz(.*?)(?:r1#bygroupz.+z (.*?)((?:\+z|\-#popz(.)zMissing end of comment tagz(?:\+z\-z (.*?)((?:z(\-|\+|))\s*endraw\s*(?:\+zMissing end of raw directivez \s*(\n|$)z(.*?)()(?=\n|$)).rCrDrrrr whitespace_reTOKEN_WHITESPACEfloat_re TOKEN_FLOAT integer_re TOKEN_INTEGERname_rerb string_re TOKEN_STRING operator_reTOKEN_OPERATORr{rrrrrrrrrjoinrrZrPrRrQr|rTrUrVrWTOKEN_RAW_BEGIN TOKEN_RAW_ENDrXrYrwrSTOKEN_LINECOMMENT_ENDrz) rrnryrZ tag_rulesZroot_tag_rulesZblock_start_reZ block_end_reZcomment_end_reZvariable_end_reZblock_suffix_reZ root_raw_reZ root_parts_rer<r<r@rs                  zLexer.__init__ricCst|j|S)z`Replace all newlines with the configured sequence in strings and template data. )rjrr)rrcr<r<r@_normalize_newlinesTszLexer._normalize_newlines)sourcer!rstaterNcCs&|||||}t||||||S)z:Calls tokeniter + tokenize and wraps it in a token stream.) tokeniterrwrap)rrr!rrrr<r<r@tokenizeZszLexer.tokenize)rr!rrNc csr|D]f\}}}|tkrq|}|tkr.t}n0|tkr>t}n |ttfkrPqn|tkrd||}n|dkrr|}n|t kr|}| st d|||n|t krz$||dd ddd}WnJtk r}z*t|dd} t | ||||W5d }~XYnXnL|tkr0t|d d d }n.|tkrLt|d d }n|tkr^t|}t|||Vqd S) zThis is called with the stream as returned by `tokenize` and wraps every token in a :class:`Token` and converts the value. keywordzInvalid character in identifierrasciibackslashreplacezunicode-escaper8Nrrr)ignored_tokensrXrTrYrUrrrZrrb isidentifierrrencodedecode Exceptionrrgstriprrreplacerrr operatorsr^) rrr!rrr`Z value_strrcrymsgr<r<r@resT    $   z Lexer.wrapccs@t|ddd}|js,|ddkr,|d=d|}d}d}dg}|dk rr|dkrr|d ksdtd ||d |j|d} t|} g} d} d } | D]r\}}}|||}|dkrq| r|t t t fkrqt |t rz|}t |tr|d}td d|dddD}|dkrN|}|t|dd} |f|dd}nh|dkr|jr|ts|dd}|dks| rt||r|d|f|dd}t|D]\}}|jtkr|||n|dkr:|D]4\}}|dk r|||fV||d7}qtqt|dn:||}|sR|tkr^|||fV||d| 7}d} qn| }|t!kr"|dkr| dn|dkr| dnj|dkr| dnT|dkr"| st"d|d|||| #}||kr"t"d|d|d||||s2|tkr>|||fV||d7}| dddk} |$}|dk r|dkr|#nV|dkr|D]$\}}|dk r||qܐqt|dn |||j|d} n||krt|d|}qq|| krdSt"d ||d!||||qdS)"aThis method tokenizes the text and returns the tokens in a generator. 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Nrr rrr)variableblockz invalid stateZ_beginTcss|]}|dk r|VqdSrBr<)r=gr<r<r@rGsz"Lexer.tokeniter..r)r(rz= wanted to resolve the token dynamically but no group matchedr2r3r0r1r.r/)r3r1r/z unexpected ''z ', expected 'rzA wanted to resolve the new state dynamically but no group matchedz* yielded empty string without stack changezunexpected char z at )%rjrgrrAssertionErrorrurzrHmatchrWrUrY isinstancetuplegroupsrrrstripcountr groupdictr\rVrfindr fullmatch enumeraterr|items RuntimeErrorignore_if_emptygrouprrpopend)rrr!rrlinesposrstackZ statetokensZ source_lengthZbalancing_stackZnewlines_strippedZ line_startingregexrZ new_statemrtextZ strip_signstrippedZl_posidxr`rLrcr%Z expected_oppos2r<r<r@rs                                    zLexer.tokeniter)NNN)NN)NN)rrrrrrrrrrrrrrIteratorr^rrr<r<r<r@r s<w   :)qrrCtypingrastr collectionsrsysrZ _identifierrr exceptionsrutilsr TYPE_CHECKINGZtyping_extensionsternr r MutableMappingrrrrrjrr IGNORECASEVERBOSErrZ TOKEN_ADDZ TOKEN_ASSIGNZ TOKEN_COLONZ TOKEN_COMMAZ TOKEN_DIVZ TOKEN_DOTZTOKEN_EQZTOKEN_FLOORDIVZTOKEN_GTZ TOKEN_GTEQZ TOKEN_LBRACEZTOKEN_LBRACKETZ TOKEN_LPARENZTOKEN_LTZ TOKEN_LTEQZ TOKEN_MODZ TOKEN_MULZTOKEN_NEZ TOKEN_PIPEZ TOKEN_POWZ TOKEN_RBRACEZTOKEN_RBRACKETZ TOKEN_RPARENZTOKEN_SEMICOLONZ TOKEN_SUBZ TOKEN_TILDErrrrbrrrTrUrVrWrrrPrQrRrXrYrwrrSrZrr[rr rOrHrrrxr frozensetrrrr]rdrhrrlListr{r| NamedTupler^rrrrrrr r<r<r<r@s            &    )m