o &zh@sdZddlmZddlZddlmZddlmZddlm Z ddl Z ddl m Z ddlmZd d Zd d ZGd ddZGdddZGdddeZddZGdddZdS)a. CSS-2.1 parser. Copyright (C) 2002-2004 TechGame Networks, LLC. This library is free software; you can redistribute it and/or modify it under the terms of the BSD style License as found in the LICENSE file included with this distribution. Modified by Dirk Holtwick , 2007-2008 The CSS 2.1 Specification this parser was derived from can be found at http://www.w3.org/TR/CSS21/ Primary Classes: * CSSParser Parses CSS source forms into results using a Builder Pattern. Must provide concrete implementation of CSSBuilderAbstract. * CSSBuilderAbstract Outlines the interface between CSSParser and it's rule-builder. Compose CSSParser with a concrete implementation of the builder to get usable results from the CSS parser. Dependencies: re ) annotationsN)abstractmethod)ClassVar) landscape)getSize) cssSpecialcCstd|d|S)Nz^@z\s*)rematch)srcidentr R/var/www/html/kangema/venv/lib/python3.10/site-packages/xhtml2pdf/w3c/cssParser.py isAtRuleIdent.srcCstdd|S)Nz ^@[a-z\-]+\s*)rsubr r r r stripAtRuleIdent2rc@sXeZdZdZeddZeddZeddZedd Zed d Z ed d Z dS)CSSSelectorAbstracta Outlines the interface between CSSParser and it's rule-builder for selectors. CSSBuilderAbstract.selector and CSSBuilderAbstract.combineSelectors must return concrete implementations of this abstract. 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CSS Parsing API: * setCSSBuilder() To set your concrete implementation of CSSBuilderAbstract * parseFile() Use to parse external stylesheets using a file-like object >>> cssFile = open('test.css', 'r') >>> stylesheets = myCSSParser.parseFile(cssFile) * parse() Use to parse embedded stylesheets using source string >>> cssSrc = ''' body,body.body { font: 110%, "Times New Roman", Arial, Verdana, Helvetica, serif; background: White; color: Black; } a {text-decoration: underline;} ''' >>> stylesheets = myCSSParser.parse(cssSrc) * parseInline() Use to parse inline stylesheets using attribute source string >>> style = 'font: 110%, "Times New Roman", Arial, Verdana, Helvetica, serif; background: White; color: Black' >>> stylesheets = myCSSParser.parseInline(style) * parseAttributes() Use to parse attribute string values into inline stylesheets >>> stylesheets = myCSSParser.parseAttributes( font='110%, "Times New Roman", Arial, Verdana, Helvetica, serif', background='White', color='Black') * parseSingleAttr() Use to parse a single string value into a CSS expression >>> fontValue = myCSSParser.parseSingleAttr('110%, "Times New Roman", Arial, Verdana, Helvetica, serif') )=z~=z|=z&=z^=z!=z<>zClassVar[list[str]]AttributeOperators)#.[:zClassVar[tuple[str, ...]]SelectorQualifiers+>SelectorCombiners)/r,ExpressionOperatorsz [0-9a-fA-F]u[€-ÿ]z\\(?:%s){1,6}\s?z\\[ -~\200-\377]z\-[^0-9]|[A-Za-z_]z [-0-9A-Za-z_]z((?:z)(?:z)*)z([^\u0000-\u007f]+)z(\'[^\u0000-\u007f]+\')z(\"[^\u0000-\u007f]+\")z)|\*)z )|\*|)\|(?!=)z\.z #((?:%s)+)z(#z{8}|#z{6}|#z{3})z | | | z\\(?:%s)z [ !#$%&(-~]z "((?:%s|')*)"z '((?:%s|")*)'z!url\(\s*(?:(?:{})|((?:{})+))\s*\)z [!#$%&*-~]z,(([-+]?[0-9]+(?:\.[0-9]+)?)|([-+]?\.[0-9]+))z(%%|%s)?z\(z[-+]?z(?:U\+z{1,6}-z{1,6})zO(?:U\+\?{1,6}|{h}(\?{0,5}|{h}(\?{0,4}|{h}(\?{0,3}|{h}(\?{0,2}|{h}(\??|{h}))))))z"(?:\/\*[^*]*\*+([^/*][^*]*\*+)*\/)z!\s*(important)NrprqcCs||dSr) setCSSBuilderr cssBuilderr r r rsrzCSSParser.__init__cCs|jS)4A concrete instance implementing CSSBuilderAbstract. _cssBuilderr/r r r getCSSBuilderszCSSParser.getCSSBuildercCs ||_dS)rNrrr r r rrzCSSParser.setCSSBuildercCs>t|dd }|}Wdn1swY||S)zr Parses CSS file-like objects using the current cssBuilder. 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[S|CDO|CDC]* [ import [S|CDO|CDC]* ]* [ [ ruleset | media | page | font_face ] [S|CDO|CDC]* ]* ; r@N)rrdecode re_commentr_parseAtCharset _parseSCDOCDC_parseAtImports_parseAtNamespace startswith_parseAtKeywordrPextend _parseRulesetrrr2)rr stylesheetImportsstylesheetElements atResultsr:r2r r r rs(        zCSSParser._parseStylesheetcCsB |}|dr|dd}n|dr|dd}n |Sq)z [S|CDO|CDC]*.rz)lstriprrr r r r?s  zCSSParser._parseSCDOCDCcCslt|dr4t|}||\}}|}|dddkr&d}||||j|dd}|j||S)z"[ CHARSET_SYM S* STRING S* ';' ]?.r=Nr;z#@charset expected a terminating ';')rr _getStringrrrkrr>)rr r=rur r r rNs  zCSSParser._parseAtCharsetc Csg}t|dr|}t|}||\}}|dur!d}||||g}||\}}|durR|||dddkrM|dd}||\}}nn|dus0|sWdg}|dddkrhd}|||||dd}|j|||}|dur||| |}t|ds||fS) z[ import [S|CDO|CDC]* ]*.importNzImport expecting string or urlrrallrz"@import expected a terminating ';') rr_getStringOrURIr _getIdentrrrrBr) rr rrkr?rur@mediumr2r r r r\s:      !zCSSParser._parseAtImportscCs||}t|drv|}t|}||\}}|durF||\}}|dur/d}||||||\}}|durEd}||||nd}|}|dddkr]d}|||||dd}|j||||}t|ds |S)zW Namespace : @namespace S* [IDENT S*]? [STRING|URI] S* ';' S* namespaceNz*@namespace expected an identifier or a URIz@namespace expected a URIrrz%@namespace expected a terminating ';') rrrrrrrrrD)rr rkrr;rur r r rs2    zCSSParser._parseAtNamespacecCs|}t|dr||\}}||fSt|dr"||\}}||fSt|dr2||\}}||fSt|drB||\}}||fSt|drR||\}}||fS|drb||\}}||fSd}||||)z-[media | page | font_face | unknown_keyword].mediapagez font-facerframerzUnknown state in atKeyword) r _parseAtMedia _parseAtPage_parseAtFontFacer _parseAtFramer _parseAtIdentr)rr rkrrur r r rs*      zCSSParser._parseAtKeywordc Cs|}|tdd}g}|ra|ddkra||\}}|dvrB|dur*|dtdtj}t||}||dd}n|||dd krU|ddn|}|ra|ddks| dsod }| ||||dd}g}|r| d s| d r| |\}} | dur| | n | |\}} || |}|r| d r| d sd }| ||||dd}|j||} || fS)zi media : MEDIA_SYM S* medium [ ',' S* medium ]* '{' S* ruleset* '}' S* ; z@media Nr{>Nandrz.*?[{]rrRuleset opening '{' not found}rzRuleset closing '}' not found)lenrrrrcompileDOTALLr endrrrrrrrE) rr rkr@rpatternr rurrr:rr r r rsH   $     zCSSParser._parseAtMediacCsi}d}d}|}|tdd}||\}}|dddkr3||dd\}}|d|}nd}g}|}g} |dsKd} || |||dd}|r@|d s@|d rr||\}} | durq|| n|j|dd \}} | | 7} i}d}| r|j |j d g| } z | d  d }Wnt y| d  d}Ynw|dd}d|vrtjjt|d|jj|j_d}d|vr4|d}t|ts|g}g}|D]9}t|}t|tr|t|q|dkrd}q|dkrd}q|tjjvrtjj||j_qd} t| t|dkr)t||j_|r4t|jj|j_|}|r@|d r\|jj|||||dg} |dd| fS)z page : PAGE_SYM S* IDENT? pseudo_page? S* '{' S* declaration [ ';' S* declaration ]* '}' S* ; NFz@pagerr_rrrrr*rz-pdf-frame-borderz-pdf-page-sizesizerTportraitzUnknown size value for @page)rKrM)rrrrrrrrrr:rXvalues Exceptionpopitemget xhtml2pdfdefault PML_PAGESIZESrFlowercpageSizerlisttuplerr RuntimeErrorrrN)rr rIrMrKrkrrGrrrur npropertiesrrsizeListr(valueStrr r r rs            < zCSSParser._parseAtPagecCsP|tdd}||\}}||\}}|j||g}||fS)zXXX Proprietary for PDF.z@frame N)rrrrratFrame)rr boxrrr r r rWs  zCSSParser._parseAtFramecCs8|tdd}||\}}|j|g}||fS)Nz @font-face)rrrrrO)rr rrr r r r_szCSSParser._parseAtFontFacec Cs(|}||dd\}}|durd}|||||j|||\}}|tur|d}|dkr3d}|d|d}|dkrBd}|durU||krU||dd}n9|dur`|dd}n.|dur||d}z ||\}}Wn|jy||\}} Yn wd}| |||||fS)Nrz+At-rule expected an identifier for the rulerrrrzUnable to ignore @-rule block) rrrrQrPrtrrr ParserError) rr rkrQrursemiIdxblockIdxr6r2r r r res6   zCSSParser._parseAtIdentcCs6||\}}||\}}|j||}||fS)z ruleset : selector [ ',' S* selector ]* '{' S* declaration [ ';' S* declaration ]* '}' S* ; )_parseSelectorGrouprrrr:)rr r9rrr r r rszCSSParser._parseRulesetcCspg}|dddvr4||\}}|dur ||fS|||dr,|dd}|dddvs ||fS)Nr>rrr(ryr]r)_parseSelectorrrr)rr r9rXr r r rs zCSSParser._parseSelectorGroupcCs||\}}t|}|dddvro|jD]}||r)|t|d}nqd}||\}}t||kr_|dd}|rY|dddvrY|dd}|rY|dddvsI|dfS|j|||}|dddvs||fS)z^ selector : simple_selector [ combinator simple_selector ]* ; Nr> rrrrryrrrr )_parseSimpleSelectorrrrrrrV)rr rXsrcLenrTrUr r r rs*       zCSSParser._parseSelectorc Cs4|}||j|\}}||j|\}}|rn|dd|jvr%d}n d}|||||j||}|j|}|r|dd|jvr||j |\}}|durY| |q;||j |\}}|durl| |q;| drz|||\}}n| dr|||\}}nn |r|dd|jvsF||fS)z simple_selector : [ namespace_selector ]? element_name? [ HASH | class | attrib | pseudo ]* S* ; Nrrz#Selector name or qualifier expectedrr)r_getMatchResultre_namespace_selectorre_element_namerrrr<rXre_hashrre_classrr_parseSelectorAttribute_parseSelectorPseudo) rr rkr;r%rurXhash_rr r r r s6      zCSSParser._parseSimpleSelectorc CsV|}|dsd}|||||dd}||j|\}}||\}}|}|dur9d}|||||durD|j||}|jD] }||rPnqGd}|t |d}|r||\}}|dur~| |\}}|dur~d}||||nd}|dsd }|||||dd}|r| |||||fS| |||fS) z attrib : '[' S* [ namespace_selector ]? IDENT S* [ [ '=' | INCLUDES | DASHMATCH ] S* [ IDENT | STRING ] S* ]? ']' ; rz(Selector Attribute opening '[' not foundrNz"Expected a selector attribute namerz#Expected a selector attribute valuerz(Selector Attribute closing ']' not found) rrrr r rrr<rrrr#r ) rr rXrkrur;rr!r"r r r rsJ      z!CSSParser._parseSelectorAttributecCs|}|dsd}||||td|tjtjBd}||\}}|s0d}|||||drd|dd}|j |dd \}}|d sTd }|||||dd}| ||||fS| |||fS) zE pseudo : ':' [ IDENT | function ] ; rzSelector Pseudo ':' not foundz ^:{1,2}(.*)rz$Selector Pseudo identifier not foundrNT return_listryz.Selector Pseudo Function closing ')' not found) rrrsearchMSgrouprr_parseExpressionr)r&)rr rXrkrur%termr r r r!s(      zCSSParser._parseSelectorPseudoTrcCs|}|dr|ddd}}n |rd}||||g}|}|dddvrh||\}}|dr?d|dd}q"|durL|dd}n|||dr_|dd}nn|dddvs*|r~|d sxd }|||||dd}||fS) NrrTz'Declaration group opening '{' not found> rrrrryrrrrrz -nothing-rrz'Declaration group closing '}' not found)rrr_parseDeclarationr)rr rrkrurrr r r rBs6       z CSSParser._parseDeclarationGroupcCsb||\}}|dur+|}|dddvr|dd}|||\}}||fSd}||fS)zb declaration : ident S* ':' S* expr prio? | /* empty */ ; Nr>rr)rrr)rr rrr r r reszCSSParser._parseDeclarationcCsB||\}}||j|\}}|}|jj|||d}||fS)NrY)rr  re_importantrrr[)rr rexprrZrr r r r~sz#CSSParser._parseDeclarationPropertyFrcCs||\}}d}|dddvrF|jD]}||r%|t|d}nqd}||\}}|tur6n|j|||}|dddvs|durX|rX|j|dd}||fS||fS)zB expr : term [ operator term ]* ; Nr>rrrryrrrr)_parseExpressionTermrrrrrPrr^)rr rroperatorterm2r r r rs$   zCSSParser._parseExpressionc CsH|}||j|\}}|dur%||j|\}}|j||}||fS|||j\}}|dur>|j|}||fS||\}}|durU|j |}||fS||j |\}}|dur|j |dd\}}|ddkrzd}| ||||dd}|j ||}||fS||j|\}}|dur|j|}||fS||j|\}}|dur|j|}||fS||j|\}}||\}}|dur|dur|j||}|j|}||fS||j|\}}|dur|j|}||fS||j|\}}|dur|j |}||fS|j|S)a term : unary_operator? [ NUMBER S* | PERCENTAGE S* | LENGTH S* | EMS S* | EXS S* | ANGLE S* | TIME S* | FREQ S* | function ] | STRING S* | IDENT S* | URI S* | RGB S* | UNICODERANGE S* | hexcolor ; NTrrryz1Terminal function expression expected closing ')'r)r re_numre_unitrrbrrre_urirdrere_functiontermrrrg re_rgbcolorrcre_unicoderangerfr rr<r` re_unicodeid re_unicodestrri) rr rkrrarparamsrur;r r r rs^                    zCSSParser._parseExpressionTermcCs||j||Sr)r re_ident)rr rr r r rszCSSParser._getIdentcCs~|dur|j}||}|r;ttd|}|r/z|d}Wnty.|d}Ynwd}|||dfS||fS)Nrr) re_stringr rfiltergroupsrr)rr rexpressionrrstrresr r r rs   zCSSParser._getStringcCs0|||j\}}|dur||\}}||fSr)rr#)rr rr r r rszCSSParser._getStringOrURIcCs0||}|r||||dfS||fSr)r rr)r.r rrrr r r r s zCSSParser._getMatchResultrr)NN)Nr)ir*r+r,r-rjrrrrrrrIrU_reflagsi_hex i_nonascii i_unicoderi_escape i_nmstarti_nmchari_identrr* i_unicodeidr' i_unicodestr1 i_unicodestr2 i_unicodestrr(i_element_namer i_namespace_selectorr i_classri_hashr i_rgbcolorr%i_nl i_escape_nli_string_content i_string1 i_string2i_stringr+formati_urir#i_numr!i_unitr" i_function re_functioni_functiontermr$i_unicoderange1i_unicoderange2i_unicoderanger& i_commentr i_importantrrsrrr[rrrrrrr staticmethodrrrrrrrrrrrrrr rrrrrrrrrrr r r r r rs 5                            - &#9d* '4!#  F r)r- __future__rrabcrtypingrreportlab.lib.pagesizesrxhtml2pdf.defaultrxhtml2pdf.utilr xhtml2pdf.w3crrrrr.rrjrrr r r r s"      #0