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lexer.pyc
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� ��Rc @s�dZddlZddlmZddlmZddlmZddlm Z ddl mZmZm Z mZmZe d�Zejd ej�Zejd ej�Zejd�Zyedd d�Wn ek r�ejd�Zn0XddlmZejdejejf�Zejd�Zejd�Zed�Zed�Z ed�Z!ed�Z"ed�Z#ed�Z$ed�Z%ed�Z&ed�Z'ed�Z(ed�Z)ed�Z*ed �Z+ed!�Z,ed"�Z-ed#�Z.ed$�Z/ed%�Z0ed&�Z1ed'�Z2ed(�Z3ed)�Z4ed*�Z5ed+�Z6ed,�Z7ed-�Z8ed.�Z9ed/�Z:ed0�Z;ed1�Z<ed2�Z=ed3�Z>ed4�Z?ed5�Z@ed6�ZAed7�ZBed8�ZCed9�ZDed:�ZEed;�ZFed<�ZGed=�ZHed>�ZIed?�ZJed@�ZKedA�ZLedB�ZMedC�ZNedD�ZOiedE6e7dF6e#dG6e&dH6e/dI6e.dJ6e2dK6e8dL6e*dM6e4dN6e+dO6e5dP6e)dQ6e3dR6e%dS6e0dT6e'dU6e(dV6e,dW6e-dX6e dY6e$dZ6e!d[6e1d\6e"d]6e6d^6ZPeQgeeP�D]\ZRZSeSeRf^q[�ZTeUeP�eUeT�ks�tVd_��ejd`d\jWda�eXePdbdc��D���ZYeZeEeGeFe9e9eJeKeLg�Z[eZe9eMeGeLg�Z\dd�Z]de�Z^df�Z_dg�Z`dh�Zadiebfdj��YZcdkedfdl��YZee dmebfdn��Y�Zfe doebfdp��Y�Zgdq�Zhdrebfds��YZidS(ts� jinja2.lexer ~~~~~~~~~~~~ This module implements a Jinja / Python combination lexer. The `Lexer` class provided by this module is used to do some preprocessing for Jinja. On the one hand it filters out invalid operators like the bitshift operators we don't allow in templates. On the other hand it separates template code and python code in expressions. :copyright: (c) 2010 by the Jinja Team. :license: BSD, see LICENSE for more details. i����N(t itemgetter(tdeque(tTemplateSyntaxError(tLRUCache(tnextt iteritemstimplements_iteratort text_typetinterni2s\s+s7('([^'\\]*(?:\\.[^'\\]*)*)'|"([^"\\]*(?:\\.[^"\\]*)*)")s\d+sföös <unknown>tevals\b[a-zA-Z_][a-zA-Z0-9_]*\b(t_stringdefss [%s][%s]*s(?<!\.)\d+\.\d+s(\r\n|\r|\n)taddtassigntcolontcommatdivtdotteqtfloordivtgttgteqtlbracetlbrackettlparentlttlteqtmodtmultnetpipetpowtrbracetrbrackettrparent semicolontsubttildet whitespacetfloattintegertnametstringtoperatortblock_begint block_endtvariable_begintvariable_endt raw_begintraw_endt comment_begintcomment_endtcommenttlinestatement_begintlinestatement_endtlinecomment_begintlinecomment_endtlinecommenttdatatinitialteoft+t-t/s//t*t%s**t~t[t]t(t)t{t}s==s!=t>s>=t<s<=t=t.t:t|t,t;soperators droppeds(%s)ccs|]}tj|�VqdS(N(tretescape(t.0tx((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pys <genexpr>�stkeycCst|�S(N(tlen(RS((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyt<lambda>�scCsx|tkrt|Sidt6dt6dt6dt6dt6dt6dt6dt6dt 6d t 6d t6dt6j ||�S(Nsbegin of commentsend of commentR3sbegin of statement blocksend of statement blocksbegin of print statementsend of print statementsbegin of line statementsend of line statementstemplate data / textsend of template(treverse_operatorstTOKEN_COMMENT_BEGINtTOKEN_COMMENT_ENDt TOKEN_COMMENTtTOKEN_LINECOMMENTtTOKEN_BLOCK_BEGINtTOKEN_BLOCK_ENDtTOKEN_VARIABLE_BEGINtTOKEN_VARIABLE_ENDtTOKEN_LINESTATEMENT_BEGINtTOKEN_LINESTATEMENT_ENDt TOKEN_DATAt TOKEN_EOFtget(t token_type((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyt_describe_token_type�s cCs#|jdkr|jSt|j�S(s#Returns a description of the token.R((ttypetvalueRf(ttoken((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pytdescribe_token�scCsGd|kr7|jdd�\}}|dkr=|Sn|}t|�S(s0Like `describe_token` but for token expressions.RLiR((tsplitRf(texprRgRh((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pytdescribe_token_expr�scCsttj|��S(ssCount the number of newline characters in the string. This is useful for extensions that filter a stream. (RUt newline_retfindall(Rh((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pytcount_newlines�scCstj}t|j�d||j�ft|j�d||j�ft|j�d||j�fg}|jd k r�|jt|j�dd||j�f�n|j d k r�|jt|j �dd||j �f�ngt |dt�D]}|d ^q�S(sACompiles all the rules from the environment into a list of rules.R3tblocktvariablet linestatements ^[ \t\v]*R8s(?:^|(?<=\S))[^\S\r\n]*treverseiN(RPRQRUtcomment_start_stringtblock_start_stringtvariable_start_stringtline_statement_prefixtNonetappendtline_comment_prefixtsortedtTrue(tenvironmenttetrulesRS((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyt compile_rules�s tFailurecBs#eZdZed�Zd�ZRS(sjClass that raises a `TemplateSyntaxError` if called. Used by the `Lexer` to specify known errors. cCs||_||_dS(N(tmessageterror_class(tselfR�tcls((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyt__init__�s cCs|j|j||��dS(N(R�R�(R�tlinenotfilename((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyt__call__�s(t__name__t __module__t__doc__RR�R�(((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyR��stTokencBs`eZdZdZd�ed�D�\ZZZd�Zd�Z d�Z d�Zd�ZRS( sToken class.ccs!|]}tt|��VqdS(N(tpropertyR(RRRS((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pys <genexpr>�sicCs%tj||tt|��|f�S(N(ttuplet__new__Rtstr(R�R�RgRh((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyR��scCs7|jtkrt|jS|jdkr0|jS|jS(NR((RgRWRh(R�((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyt__str__�s cCsE|j|krtSd|krA|jdd�|j|jgkStS(s�Test a token against a token expression. This can either be a token type or ``'token_type:token_value'``. This can only test against string values and types. RLi(RgR}RkRhtFalse(R�Rl((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyttest�s "cGs(x!|D]}|j|�rtSqWtS(s(Test against multiple token expressions.(R�R}R�(R�titerableRl((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyttest_any�s cCsd|j|j|jfS(NsToken(%r, %r, %r)(R�RgRh(R�((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyt__repr__s(( R�R�R�t __slots__trangeR�RgRhR�R�R�R�R�(((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyR��s tTokenStreamIteratorcBs)eZdZd�Zd�Zd�ZRS(s`The iterator for tokenstreams. Iterate over the stream until the eof token is reached. cCs ||_dS(N(tstream(R�R�((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyR�scCs|S(N((R�((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyt__iter__scCsE|jj}|jtkr4|jj�t��nt|j�|S(N(R�tcurrentRgRctcloset StopIterationR(R�Ri((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyt__next__s (R�R�R�R�R�R�(((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyR�s tTokenStreamcBs�eZdZd�Zd�Zd�ZeZed�dd�Zd�Z d�Z d d �Zd�Zd�Z d �Zd�Zd�ZRS(s�A token stream is an iterable that yields :class:`Token`\s. The parser however does not iterate over it but calls :meth:`next` to go one token ahead. The current active token is stored as :attr:`current`. cCsYt|�|_t�|_||_||_t|_tdt d�|_ t|�dS(Nit(titert_iterRt_pushedR(R�R�tclosedR�t TOKEN_INITIALR�R(R�t generatorR(R�((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyR�(s cCs t|�S(N(R�(R�((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyR�1scCst|j�p|jjtk S(N(tboolR�R�RgRc(R�((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyt__bool__4scCs|S(N((RS((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyRV8stdocs Are we at the end of the stream?cCs|jj|�dS(s Push a token back to the stream.N(R�Rz(R�Ri((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pytpush:scCs/t|�}|j}|j|�||_|S(sLook at the next token.(RR�R�(R�t old_tokentresult((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pytlook>s icCs%xt|�D]}t|�q WdS(sGot n tokens ahead.N(R�R(R�tnRS((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pytskipFscCs |jj|�rt|�SdS(sqPerform the token test and return the token if it matched. Otherwise the return value is `None`. N(R�R�R(R�Rl((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pytnext_ifKscCs|j|�dk S(s8Like :meth:`next_if` but only returns `True` or `False`.N(R�Ry(R�Rl((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pytskip_ifRscCst|j}|jr'|jj�|_nI|jjtk rpyt|j�|_Wqptk rl|j�qpXn|S(s)Go one token ahead and return the old one( R�R�tpopleftRgRcRR�R�R�(R�trv((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyR�Vs cCs1t|jjtd�|_d|_t|_dS(sClose the stream.R�N(R�R�R�RcRyR�R}R�(R�((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyR�bs cCs�|jj|�s�t|�}|jjtkrXtd||jj|j|j��ntd|t |j�f|jj|j|j��nz|jSWdt |�XdS(s}Expect a given token type and return it. This accepts the same argument as :meth:`jinja2.lexer.Token.test`. s(unexpected end of template, expected %r.sexpected token %r, got %rN(R�R�RmRgRcRR�R(R�RjR(R�Rl((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pytexpecths (R�R�R�R�R�R�t__nonzero__R�teosR�R�R�R�R�R�R�R�(((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyR�!s cCs�|j|j|j|j|j|j|j|j|j|j |j |jf}tj |�}|dkr�t|�}|t|<n|S(s(Return a lexer which is probably cached.N(Rvtblock_end_stringRwtvariable_end_stringRutcomment_end_stringRxR{ttrim_blockst lstrip_blockstnewline_sequencetkeep_trailing_newlinet_lexer_cacheRdRytLexer(R~RTtlexer((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyt get_lexer}s" R�cBsPeZdZd�Zd�Zdddd�Zddd�Zddd�ZRS(s Class that implements a lexer for a given environment. Automatically created by the environment class, usually you don't have to do that. Note that the lexer is not automatically bound to an environment. Multiple environments can share the same lexer. cCs4d�}tj}ttdfttdfttdft t dfttdft tdfg}t|�}|jr{dp~d}i}|jr�|d�}|d||j��} | j|j�} || r�d|| jd��p�d7}| j|j�} || r$d|| jd��p'd7}|d||j��}|j|j�} | rud|| jd��pxd}d } d | ||j�|||j�f}d| ||j�|||j�f}||d<||d <nd||j�}|j|_|j|_i|ddjd||j�|||j�||j�fgg|D]+\}}d|||j||�f^qZ��tdfdf|d�tdfgd6|d||j�||j�|f�ttfdf|d�t d�fdfgt!6|d||j�||j�|f�t"dfg|t#6|d||j$�||j$�f�t%dfg|t&6|d||j�|||j�||j�|f�tt'fdf|d�t d�fdfgt(6|d�t)dfg|t*6|d�t+t,fdfgt-6|_.dS( NcSstj|tjtjB�S(N(RPtcompiletMtS(RS((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyRV�ss\n?R�R<s^%s(.*)s|%sis(?!%s)s^[ \t]*s%s%s(?!%s)|%s\+?s%s%s%s|%s\+?RqR3s%ss(.*?)(?:%s)RMs4(?P<raw_begin>(?:\s*%s\-|%s)\s*raw\s*(?:\-%s\s*|%s))s(?P<%s_begin>\s*%s\-|%s)s#bygroups.+troots(.*?)((?:\-%s\s*|%s)%s)s#pops(.)sMissing end of comment tags(?:\-%s\s*|%s)%ss \-%s\s*|%ss1(.*?)((?:\s*%s\-|%s)\s*endraw\s*(?:\-%s\s*|%s%s))sMissing end of raw directives \s*(\n|$)s(.*?)()(?=\n|$)(/RPRQt whitespace_retTOKEN_WHITESPACERytfloat_retTOKEN_FLOATt integer_ret TOKEN_INTEGERtname_ret TOKEN_NAMEt string_retTOKEN_STRINGtoperator_retTOKEN_OPERATORR�R�R�RvtmatchRutgroupRwR�R�tjoinR�RdRbR�RZRYR�RXR]R\R�R_R^t TOKEN_RAW_ENDtTOKEN_RAW_BEGINRaR`R[tTOKEN_LINECOMMENT_ENDtTOKEN_LINECOMMENT_BEGINR�(R�R~tcRt tag_rulestroot_tag_rulestblock_suffix_ret prefix_retno_lstrip_ret block_difftmtcomment_difftno_variable_ret lstrip_retblock_prefix_retcomment_prefix_reR�tr((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyR��s� ))% : " "cCstj|j|�S(s@Called for strings and template data to normalize it to unicode.(RnR#R�(R�Rh((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyt_normalize_newlinesscCs7|j||||�}t|j|||�||�S(sCCalls tokeniter + tokenize and wraps it in a token stream. (t tokeniterR�twrap(R�tsourceR(R�tstateR�((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyttokenizesc cs�x�|D]�\}}}|tkr(qn�|dkr=d}np|dkrRd}n[|dkrdqnI|dkr�|j|�}n+|dkr�|}n|d kr�t|�}n�|d kr^y/|j|dd!�jd d�jd�}WnGtk r6}t|�jd�dj�}t||||��nXyt|�}Wq�t k rZq�XnO|dkryt |�}n4|dkr�t|�}n|dkr�t|}nt |||�VqWdS(s�This is called with the stream as returned by `tokenize` and wraps every token in a :class:`Token` and converts the value. R4R+R5R,R/R0R9tkeywordR(R)ii����tasciitbackslashreplacesunicode-escapeRLR'R&R*N(R/R0(tignored_tokensR�R�tencodetdecodet ExceptionRktstripRtUnicodeErrortintR&t operatorsR�( R�R�R(R�R�RiRhRtmsg((s0/usr/lib/python2.7/site-packages/jinja2/lexer.pyR�$sD c csrt|�}|j�}|jr[|r[x1d D]&}|j|�r.|jd�Pq.q.Wndj|�}d}d}dg} |dk r�|dkr�|d!ks�td ��| j|d�nd}|j| d} t |�}g}xxy| D]>\} }}| j ||�}|dkr)q�n|rA|d"krAq�nt|t�rMx t |�D]�\}}|jtkr�|||��q]|dkr�x�t|j��D]=\}}|dk r�|||fV||jd�7}Pq�q�Wtd| ��q]|j|d�}|s"|tkr3|||fVn||jd�7}q]Wn|j�}|dkr'|dkr�|jd�q'|dkr�|jd�q'|dkr�|jd�q'|d#kr'|s�td||||��n|j�}||kr$td||f|||��q$q'n|s9|tkrJ|||fVn||jd�7}|j�}|dk r|dkr�| j�nl|dkr�x]t|j��D])\}}|dk r�| j|�Pq�q�Wtd| ��n | j|�|j| d} n||kr-td| ��n|}Pq�W||krHdStd|||f|||��q�dS($s�This method tokenizes the text and returns the tokens in a generator. 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