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root / trunk / web / dojo / dojox / highlight / _base.js @ 10

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/*
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        Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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        Available via Academic Free License >= 2.1 OR the modified BSD license.
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        see: http://dojotoolkit.org/license for details
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*/
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if(!dojo._hasResource["dojox.highlight._base"]){
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dojo._hasResource["dojox.highlight._base"]=true;
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dojo.provide("dojox.highlight._base");
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(function(){
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var dh=dojox.highlight,_1="\\b(0x[A-Za-z0-9]+|\\d+(\\.\\d+)?)";
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dh.constants={IDENT_RE:"[a-zA-Z][a-zA-Z0-9_]*",UNDERSCORE_IDENT_RE:"[a-zA-Z_][a-zA-Z0-9_]*",NUMBER_RE:"\\b\\d+(\\.\\d+)?",C_NUMBER_RE:_1,APOS_STRING_MODE:{className:"string",begin:"'",end:"'",illegal:"\\n",contains:["escape"],relevance:0},QUOTE_STRING_MODE:{className:"string",begin:"\"",end:"\"",illegal:"\\n",contains:["escape"],relevance:0},BACKSLASH_ESCAPE:{className:"escape",begin:"\\\\.",end:"^",relevance:0},C_LINE_COMMENT_MODE:{className:"comment",begin:"//",end:"$",relevance:0},C_BLOCK_COMMENT_MODE:{className:"comment",begin:"/\\*",end:"\\*/"},HASH_COMMENT_MODE:{className:"comment",begin:"#",end:"$"},C_NUMBER_MODE:{className:"number",begin:_1,end:"^",relevance:0}};
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function _2(_3){
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return _3.replace(/&/gm,"&amp;").replace(/</gm,"&lt;").replace(/>/gm,"&gt;");
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};
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function _4(_5){
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return dojo.every(_5.childNodes,function(_6){
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return _6.nodeType==3||String(_6.nodeName).toLowerCase()=="br";
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});
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};
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function _7(_8){
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var _9=[];
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dojo.forEach(_8.childNodes,function(_a){
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if(_a.nodeType==3){
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_9.push(_a.nodeValue);
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}else{
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if(String(_a.nodeName).toLowerCase()=="br"){
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_9.push("\n");
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}else{
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throw "Complex markup";
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}
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}
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});
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return _9.join("");
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};
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function _b(_c){
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if(!_c.keywordGroups){
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for(var _d in _c.keywords){
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var kw=_c.keywords[_d];
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if(kw instanceof Object){
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_c.keywordGroups=_c.keywords;
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}else{
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_c.keywordGroups={keyword:_c.keywords};
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}
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break;
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}
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}
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};
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function _e(_f){
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if(_f.defaultMode&&_f.modes){
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_b(_f.defaultMode);
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dojo.forEach(_f.modes,_b);
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}
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};
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var _10=function(_11,_12){
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this.langName=_11;
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this.lang=dh.languages[_11];
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this.modes=[this.lang.defaultMode];
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this.relevance=0;
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this.keywordCount=0;
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this.result=[];
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if(!this.lang.defaultMode.illegalRe){
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this.buildRes();
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_e(this.lang);
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}
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try{
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this.highlight(_12);
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this.result=this.result.join("");
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}
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catch(e){
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if(e=="Illegal"){
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this.relevance=0;
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this.keywordCount=0;
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this.partialResult=this.result.join("");
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this.result=_2(_12);
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}else{
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throw e;
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}
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}
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};
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dojo.extend(_10,{buildRes:function(){
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dojo.forEach(this.lang.modes,function(_13){
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if(_13.begin){
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_13.beginRe=this.langRe("^"+_13.begin);
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}
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if(_13.end){
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_13.endRe=this.langRe("^"+_13.end);
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}
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if(_13.illegal){
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_13.illegalRe=this.langRe("^(?:"+_13.illegal+")");
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}
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},this);
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this.lang.defaultMode.illegalRe=this.langRe("^(?:"+this.lang.defaultMode.illegal+")");
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},subMode:function(_14){
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var _15=this.modes[this.modes.length-1].contains;
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if(_15){
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var _16=this.lang.modes;
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for(var i=0;i<_15.length;++i){
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var _17=_15[i];
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for(var j=0;j<_16.length;++j){
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var _18=_16[j];
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if(_18.className==_17&&_18.beginRe.test(_14)){
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return _18;
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}
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}
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}
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}
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return null;
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},endOfMode:function(_19){
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for(var i=this.modes.length-1;i>=0;--i){
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var _1a=this.modes[i];
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if(_1a.end&&_1a.endRe.test(_19)){
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return this.modes.length-i;
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}
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if(!_1a.endsWithParent){
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break;
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}
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}
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return 0;
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},isIllegal:function(_1b){
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var _1c=this.modes[this.modes.length-1].illegalRe;
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return _1c&&_1c.test(_1b);
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},langRe:function(_1d,_1e){
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var _1f="m"+(this.lang.case_insensitive?"i":"")+(_1e?"g":"");
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return new RegExp(_1d,_1f);
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},buildTerminators:function(){
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var _20=this.modes[this.modes.length-1],_21={};
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if(_20.contains){
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dojo.forEach(this.lang.modes,function(_22){
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if(dojo.indexOf(_20.contains,_22.className)>=0){
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_21[_22.begin]=1;
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}
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});
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}
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for(var i=this.modes.length-1;i>=0;--i){
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var m=this.modes[i];
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if(m.end){
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_21[m.end]=1;
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}
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if(!m.endsWithParent){
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break;
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}
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}
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if(_20.illegal){
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_21[_20.illegal]=1;
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}
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var t=[];
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for(i in _21){
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t.push(i);
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}
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_20.terminatorsRe=this.langRe("("+t.join("|")+")");
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},eatModeChunk:function(_23,_24){
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var _25=this.modes[this.modes.length-1];
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if(!_25.terminatorsRe){
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this.buildTerminators();
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}
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_23=_23.substr(_24);
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var _26=_25.terminatorsRe.exec(_23);
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if(!_26){
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return {buffer:_23,lexeme:"",end:true};
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}
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return {buffer:_26.index?_23.substr(0,_26.index):"",lexeme:_26[0],end:false};
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},keywordMatch:function(_27,_28){
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var _29=_28[0];
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if(this.lang.case_insensitive){
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_29=_29.toLowerCase();
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}
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for(var _2a in _27.keywordGroups){
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if(_29 in _27.keywordGroups[_2a]){
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return _2a;
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}
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}
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return "";
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},buildLexemes:function(_2b){
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var _2c={};
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dojo.forEach(_2b.lexems,function(_2d){
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_2c[_2d]=1;
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});
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var t=[];
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for(var i in _2c){
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t.push(i);
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}
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_2b.lexemsRe=this.langRe("("+t.join("|")+")",true);
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},processKeywords:function(_2e){
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var _2f=this.modes[this.modes.length-1];
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if(!_2f.keywords||!_2f.lexems){
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return _2(_2e);
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}
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if(!_2f.lexemsRe){
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this.buildLexemes(_2f);
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}
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_2f.lexemsRe.lastIndex=0;
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var _30=[],_31=0,_32=_2f.lexemsRe.exec(_2e);
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while(_32){
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_30.push(_2(_2e.substr(_31,_32.index-_31)));
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var _33=this.keywordMatch(_2f,_32);
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if(_33){
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++this.keywordCount;
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_30.push("<span class=\""+_33+"\">"+_2(_32[0])+"</span>");
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}else{
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_30.push(_2(_32[0]));
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}
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_31=_2f.lexemsRe.lastIndex;
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_32=_2f.lexemsRe.exec(_2e);
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}
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_30.push(_2(_2e.substr(_31,_2e.length-_31)));
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return _30.join("");
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},processModeInfo:function(_34,_35,end){
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var _36=this.modes[this.modes.length-1];
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if(end){
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this.result.push(this.processKeywords(_36.buffer+_34));
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return;
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}
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if(this.isIllegal(_35)){
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throw "Illegal";
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}
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var _37=this.subMode(_35);
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if(_37){
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_36.buffer+=_34;
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this.result.push(this.processKeywords(_36.buffer));
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if(_37.excludeBegin){
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this.result.push(_35+"<span class=\""+_37.className+"\">");
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_37.buffer="";
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}else{
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this.result.push("<span class=\""+_37.className+"\">");
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_37.buffer=_35;
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}
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this.modes.push(_37);
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this.relevance+=typeof _37.relevance=="number"?_37.relevance:1;
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return;
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}
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var _38=this.endOfMode(_35);
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if(_38){
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_36.buffer+=_34;
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if(_36.excludeEnd){
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this.result.push(this.processKeywords(_36.buffer)+"</span>"+_35);
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}else{
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this.result.push(this.processKeywords(_36.buffer+_35)+"</span>");
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}
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while(_38>1){
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this.result.push("</span>");
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--_38;
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this.modes.pop();
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}
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this.modes.pop();
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this.modes[this.modes.length-1].buffer="";
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return;
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}
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},highlight:function(_39){
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var _3a=0;
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this.lang.defaultMode.buffer="";
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do{
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var _3b=this.eatModeChunk(_39,_3a);
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this.processModeInfo(_3b.buffer,_3b.lexeme,_3b.end);
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_3a+=_3b.buffer.length+_3b.lexeme.length;
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}while(!_3b.end);
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if(this.modes.length>1){
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throw "Illegal";
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}
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}});
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function _3c(_3d,_3e,_3f){
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if(String(_3d.tagName).toLowerCase()=="code"&&String(_3d.parentNode.tagName).toLowerCase()=="pre"){
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var _40=document.createElement("div"),_41=_3d.parentNode.parentNode;
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_40.innerHTML="<pre><code class=\""+_3e+"\">"+_3f+"</code></pre>";
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_41.replaceChild(_40.firstChild,_3d.parentNode);
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}else{
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_3d.className=_3e;
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_3d.innerHTML=_3f;
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}
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};
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function _42(_43,str){
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var _44=new _10(_43,str);
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return {result:_44.result,langName:_43,partialResult:_44.partialResult};
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};
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function _45(_46,_47){
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var _48=_42(_47,_7(_46));
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_3c(_46,_46.className,_48.result);
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};
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function _49(str){
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var _4a="",_4b="",_4c=2,_4d=str;
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for(var key in dh.languages){
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if(!dh.languages[key].defaultMode){
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continue;
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}
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var _4e=new _10(key,_4d),_4f=_4e.keywordCount+_4e.relevance,_50=0;
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if(!_4a||_4f>_50){
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_50=_4f;
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_4a=_4e.result;
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_4b=_4e.langName;
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}
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}
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return {result:_4a,langName:_4b};
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};
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function _51(_52){
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var _53=_49(_7(_52));
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if(_53.result){
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_3c(_52,_53.langName,_53.result);
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}
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};
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dojox.highlight.processString=function(str,_54){
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return _54?_42(_54,str):_49(str);
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};
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dojox.highlight.init=function(_55){
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_55=dojo.byId(_55);
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if(dojo.hasClass(_55,"no-highlight")){
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return;
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}
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if(!_4(_55)){
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return;
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}
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var _56=_55.className.split(/\s+/),_57=dojo.some(_56,function(_58){
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if(_58.charAt(0)!="_"&&dh.languages[_58]){
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_45(_55,_58);
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return true;
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}
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return false;
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});
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if(!_57){
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_51(_55);
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}
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};
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dh.Code=function(p,n){
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dh.init(n);
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};
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})();
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}