root/trunk/website/js/spry/xpath.js

Revision 5, 43.3 kB (checked in by DanWilson, 17 years ago)

Initial Commit Of ModelGlue? Website (upgrade to blogcfc 511)
Line 
1// xpath.js - version 0.7 - Spry Pre-Release 1.6
2//
3// Copyright 2006 Google Inc.
4// All Rights Reserved
5
6var REGEXP_UNICODE=function(){var tests=[' ','\u0120',-1,'!','\u0120',-1,'\u0120','\u0120',0,'\u0121','\u0120',-1,'\u0121','\u0120|\u0121',0,'\u0122','\u0120|\u0121',-1,'\u0120','[\u0120]',0,'\u0121','[\u0120]',-1,'\u0121','[\u0120\u0121]',0,'\u0122','[\u0120\u0121]',-1,'\u0121','[\u0120-\u0121]',0,'\u0122','[\u0120-\u0121]',-1];for(var i=0;i<tests.length;i+=3){if(tests[i].search(new RegExp(tests[i+1]))!=tests[i+2]){return false;}}
7return true;}();var XML_S='[ \t\r\n]+';var XML_EQ='('+XML_S+')?=('+XML_S+')?';var XML_CHAR_REF='&#[0-9]+;|&#x[0-9a-fA-F]+;';var XML10_VERSION_INFO=XML_S+'version'+XML_EQ+'("1\\.0"|'+"'1\\.0')";var XML10_BASE_CHAR=(REGEXP_UNICODE)?'\u0041-\u005a\u0061-\u007a\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u00ff'+'\u0100-\u0131\u0134-\u013e\u0141-\u0148\u014a-\u017e\u0180-\u01c3'+'\u01cd-\u01f0\u01f4-\u01f5\u01fa-\u0217\u0250-\u02a8\u02bb-\u02c1\u0386'+'\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03ce\u03d0-\u03d6\u03da\u03dc'+'\u03de\u03e0\u03e2-\u03f3\u0401-\u040c\u040e-\u044f\u0451-\u045c'+'\u045e-\u0481\u0490-\u04c4\u04c7-\u04c8\u04cb-\u04cc\u04d0-\u04eb'+'\u04ee-\u04f5\u04f8-\u04f9\u0531-\u0556\u0559\u0561-\u0586\u05d0-\u05ea'+'\u05f0-\u05f2\u0621-\u063a\u0641-\u064a\u0671-\u06b7\u06ba-\u06be'+'\u06c0-\u06ce\u06d0-\u06d3\u06d5\u06e5-\u06e6\u0905-\u0939\u093d'+'\u0958-\u0961\u0985-\u098c\u098f-\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2'+'\u09b6-\u09b9\u09dc-\u09dd\u09df-\u09e1\u09f0-\u09f1\u0a05-\u0a0a'+'\u0a0f-\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32-\u0a33\u0a35-\u0a36'+'\u0a38-\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8b\u0a8d'+'\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2-\u0ab3\u0ab5-\u0ab9'+'\u0abd\u0ae0\u0b05-\u0b0c\u0b0f-\u0b10\u0b13-\u0b28\u0b2a-\u0b30'+'\u0b32-\u0b33\u0b36-\u0b39\u0b3d\u0b5c-\u0b5d\u0b5f-\u0b61\u0b85-\u0b8a'+'\u0b8e-\u0b90\u0b92-\u0b95\u0b99-\u0b9a\u0b9c\u0b9e-\u0b9f\u0ba3-\u0ba4'+'\u0ba8-\u0baa\u0bae-\u0bb5\u0bb7-\u0bb9\u0c05-\u0c0c\u0c0e-\u0c10'+'\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c60-\u0c61\u0c85-\u0c8c'+'\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cde\u0ce0-\u0ce1'+'\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d28\u0d2a-\u0d39\u0d60-\u0d61'+'\u0e01-\u0e2e\u0e30\u0e32-\u0e33\u0e40-\u0e45\u0e81-\u0e82\u0e84'+'\u0e87-\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5'+'\u0ea7\u0eaa-\u0eab\u0ead-\u0eae\u0eb0\u0eb2-\u0eb3\u0ebd\u0ec0-\u0ec4'+'\u0f40-\u0f47\u0f49-\u0f69\u10a0-\u10c5\u10d0-\u10f6\u1100\u1102-\u1103'+'\u1105-\u1107\u1109\u110b-\u110c\u110e-\u1112\u113c\u113e\u1140\u114c'+'\u114e\u1150\u1154-\u1155\u1159\u115f-\u1161\u1163\u1165\u1167\u1169'+'\u116d-\u116e\u1172-\u1173\u1175\u119e\u11a8\u11ab\u11ae-\u11af'+'\u11b7-\u11b8\u11ba\u11bc-\u11c2\u11eb\u11f0\u11f9\u1e00-\u1e9b'+'\u1ea0-\u1ef9\u1f00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d'+'\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc'+'\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec'+'\u1ff2-\u1ff4\u1ff6-\u1ffc\u2126\u212a-\u212b\u212e\u2180-\u2182'+'\u3041-\u3094\u30a1-\u30fa\u3105-\u312c\uac00-\ud7a3':'A-Za-z';var XML10_IDEOGRAPHIC=(REGEXP_UNICODE)?'\u4e00-\u9fa5\u3007\u3021-\u3029':'';var XML10_COMBINING_CHAR=(REGEXP_UNICODE)?'\u0300-\u0345\u0360-\u0361\u0483-\u0486\u0591-\u05a1\u05a3-\u05b9'+'\u05bb-\u05bd\u05bf\u05c1-\u05c2\u05c4\u064b-\u0652\u0670\u06d6-\u06dc'+'\u06dd-\u06df\u06e0-\u06e4\u06e7-\u06e8\u06ea-\u06ed\u0901-\u0903\u093c'+'\u093e-\u094c\u094d\u0951-\u0954\u0962-\u0963\u0981-\u0983\u09bc\u09be'+'\u09bf\u09c0-\u09c4\u09c7-\u09c8\u09cb-\u09cd\u09d7\u09e2-\u09e3\u0a02'+'\u0a3c\u0a3e\u0a3f\u0a40-\u0a42\u0a47-\u0a48\u0a4b-\u0a4d\u0a70-\u0a71'+'\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0b01-\u0b03'+'\u0b3c\u0b3e-\u0b43\u0b47-\u0b48\u0b4b-\u0b4d\u0b56-\u0b57\u0b82-\u0b83'+'\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0c01-\u0c03\u0c3e-\u0c44'+'\u0c46-\u0c48\u0c4a-\u0c4d\u0c55-\u0c56\u0c82-\u0c83\u0cbe-\u0cc4'+'\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5-\u0cd6\u0d02-\u0d03\u0d3e-\u0d43'+'\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1'+'\u0eb4-\u0eb9\u0ebb-\u0ebc\u0ec8-\u0ecd\u0f18-\u0f19\u0f35\u0f37\u0f39'+'\u0f3e\u0f3f\u0f71-\u0f84\u0f86-\u0f8b\u0f90-\u0f95\u0f97\u0f99-\u0fad'+'\u0fb1-\u0fb7\u0fb9\u20d0-\u20dc\u20e1\u302a-\u302f\u3099\u309a':'';var XML10_DIGIT=(REGEXP_UNICODE)?'\u0030-\u0039\u0660-\u0669\u06f0-\u06f9\u0966-\u096f\u09e6-\u09ef'+'\u0a66-\u0a6f\u0ae6-\u0aef\u0b66-\u0b6f\u0be7-\u0bef\u0c66-\u0c6f'+'\u0ce6-\u0cef\u0d66-\u0d6f\u0e50-\u0e59\u0ed0-\u0ed9\u0f20-\u0f29':'0-9';var XML10_EXTENDER=(REGEXP_UNICODE)?'\u00b7\u02d0\u02d1\u0387\u0640\u0e46\u0ec6\u3005\u3031-\u3035'+'\u309d-\u309e\u30fc-\u30fe':'';var XML10_LETTER=XML10_BASE_CHAR+XML10_IDEOGRAPHIC;var XML10_NAME_CHAR=XML10_LETTER+XML10_DIGIT+'\\._:'+
8XML10_COMBINING_CHAR+XML10_EXTENDER+'-';var XML10_NAME='['+XML10_LETTER+'_:]['+XML10_NAME_CHAR+']*';var XML10_ENTITY_REF='&'+XML10_NAME+';';var XML10_REFERENCE=XML10_ENTITY_REF+'|'+XML_CHAR_REF;var XML10_ATT_VALUE='"(([^<&"]|'+XML10_REFERENCE+')*)"|'+"'(([^<&']|"+XML10_REFERENCE+")*)'";var XML10_ATTRIBUTE='('+XML10_NAME+')'+XML_EQ+'('+XML10_ATT_VALUE+')';var XML11_VERSION_INFO=XML_S+'version'+XML_EQ+'("1\\.1"|'+"'1\\.1')";var XML11_NAME_START_CHAR=(REGEXP_UNICODE)?':A-Z_a-z\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02ff\u0370-\u037d'+'\u037f-\u1fff\u200c-\u200d\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff'+'\uf900-\ufdcf\ufdf0-\ufffd':':A-Z_a-z';var XML11_NAME_CHAR=XML11_NAME_START_CHAR+
9((REGEXP_UNICODE)?'\\.0-9\u00b7\u0300-\u036f\u203f-\u2040-':'\\.0-9-');var XML11_NAME='['+XML11_NAME_START_CHAR+']['+XML11_NAME_CHAR+']*';var XML11_ENTITY_REF='&'+XML11_NAME+';';var XML11_REFERENCE=XML11_ENTITY_REF+'|'+XML_CHAR_REF;var XML11_ATT_VALUE='"(([^<&"]|'+XML11_REFERENCE+')*)"|'+"'(([^<&']|"+XML11_REFERENCE+")*)'";var XML11_ATTRIBUTE='('+XML11_NAME+')'+XML_EQ+'('+XML11_ATT_VALUE+')';var XML_NC_NAME_CHAR=XML10_LETTER+XML10_DIGIT+'\\._'+
10XML10_COMBINING_CHAR+XML10_EXTENDER+'-';var XML_NC_NAME='['+XML10_LETTER+'_]['+XML_NC_NAME_CHAR+']*';var DOM_ELEMENT_NODE=1;var DOM_ATTRIBUTE_NODE=2;var DOM_TEXT_NODE=3;var DOM_CDATA_SECTION_NODE=4;var DOM_ENTITY_REFERENCE_NODE=5;var DOM_ENTITY_NODE=6;var DOM_PROCESSING_INSTRUCTION_NODE=7;var DOM_COMMENT_NODE=8;var DOM_DOCUMENT_NODE=9;var DOM_DOCUMENT_TYPE_NODE=10;var DOM_DOCUMENT_FRAGMENT_NODE=11;var DOM_NOTATION_NODE=12;function xpathLog(msg){};function xsltLog(msg){};function xsltLogXml(msg){};function assert(b){if(!b){throw"Assertion failed";}}
11function stringSplit(s,c){var a=s.indexOf(c);if(a==-1){return[s];}
12var parts=[];parts.push(s.substr(0,a));while(a!=-1){var a1=s.indexOf(c,a+1);if(a1!=-1){parts.push(s.substr(a+1,a1-a-1));}else{parts.push(s.substr(a+1));}
13a=a1;}
14return parts;}
15function mapExec(array,func){for(var i=0;i<array.length;++i){func.call(this,array[i],i);}}
16function mapExpr(array,func){var ret=[];for(var i=0;i<array.length;++i){ret.push(func(array[i]));}
17return ret;};function reverseInplace(array){for(var i=0;i<array.length/2;++i){var h=array[i];var ii=array.length-i-1;array[i]=array[ii];array[ii]=h;}}
18function removeFromArray(array,value,opt_notype){var shift=0;for(var i=0;i<array.length;++i){if(array[i]===value||(opt_notype&&array[i]==value)){array.splice(i--,1);shift++;}}
19return shift;}
20function copyArray(dst,src){for(var i=0;i<src.length;++i){dst.push(src[i]);}}
21function xmlValue(node){if(!node){return'';}
22var ret='';if(node.nodeType==DOM_TEXT_NODE||node.nodeType==DOM_CDATA_SECTION_NODE||node.nodeType==DOM_ATTRIBUTE_NODE){ret+=node.nodeValue;}else if(node.nodeType==DOM_ELEMENT_NODE||node.nodeType==DOM_DOCUMENT_NODE||node.nodeType==DOM_DOCUMENT_FRAGMENT_NODE){for(var i=0;i<node.childNodes.length;++i){ret+=arguments.callee(node.childNodes[i]);}}
23return ret;}
24function xpathParse(expr){xpathLog('parse '+expr);xpathParseInit();var cached=xpathCacheLookup(expr);if(cached){xpathLog(' ... cached');return cached;}
25if(expr.match(/^(\$|@)?\w+$/i)){var ret=makeSimpleExpr(expr);xpathParseCache[expr]=ret;xpathLog(' ... simple');return ret;}
26if(expr.match(/^\w+(\/\w+)*$/i)){var ret=makeSimpleExpr2(expr);xpathParseCache[expr]=ret;xpathLog(' ... simple 2');return ret;}
27var cachekey=expr;var stack=[];var ahead=null;var previous=null;var done=false;var parse_count=0;var lexer_count=0;var reduce_count=0;while(!done){parse_count++;expr=expr.replace(/^\s*/,'');previous=ahead;ahead=null;var rule=null;var match='';for(var i=0;i<xpathTokenRules.length;++i){var result=xpathTokenRules[i].re.exec(expr);lexer_count++;if(result&&result.length>0&&result[0].length>match.length){rule=xpathTokenRules[i];match=result[0];break;}}
28if(rule&&(rule==TOK_DIV||rule==TOK_MOD||rule==TOK_AND||rule==TOK_OR)&&(!previous||previous.tag==TOK_AT||previous.tag==TOK_DSLASH||previous.tag==TOK_SLASH||previous.tag==TOK_AXIS||previous.tag==TOK_DOLLAR)){rule=TOK_QNAME;}
29if(rule){expr=expr.substr(match.length);xpathLog('token: '+match+' -- '+rule.label);ahead={tag:rule,match:match,prec:rule.prec?rule.prec:0,expr:makeTokenExpr(match)};}else{xpathLog('DONE');done=true;}
30while(xpathReduce(stack,ahead)){reduce_count++;xpathLog('stack: '+stackToString(stack));}}
31xpathLog('stack: '+stackToString(stack));if(stack.length!=1){throw'XPath parse error '+cachekey+':\n'+stackToString(stack);}
32var result=stack[0].expr;xpathParseCache[cachekey]=result;xpathLog('XPath parse: '+parse_count+' / '+
33lexer_count+' / '+reduce_count);return result;}
34var xpathParseCache={};function xpathCacheLookup(expr){return xpathParseCache[expr];}
35function xpathReduce(stack,ahead){var cand=null;if(stack.length>0){var top=stack[stack.length-1];var ruleset=xpathRules[top.tag.key];if(ruleset){for(var i=0;i<ruleset.length;++i){var rule=ruleset[i];var match=xpathMatchStack(stack,rule[1]);if(match.length){cand={tag:rule[0],rule:rule,match:match};cand.prec=xpathGrammarPrecedence(cand);break;}}}}
36var ret;if(cand&&(!ahead||cand.prec>ahead.prec||(ahead.tag.left&&cand.prec>=ahead.prec))){for(var i=0;i<cand.match.matchlength;++i){stack.pop();}
37xpathLog('reduce '+cand.tag.label+' '+cand.prec+' ahead '+(ahead?ahead.tag.label+' '+ahead.prec+
38(ahead.tag.left?' left':''):' none '));var matchexpr=mapExpr(cand.match,function(m){return m.expr;});cand.expr=cand.rule[3].apply(null,matchexpr);stack.push(cand);ret=true;}else{if(ahead){xpathLog('shift '+ahead.tag.label+' '+ahead.prec+
39(ahead.tag.left?' left':'')+' over '+(cand?cand.tag.label+' '+
40cand.prec:' none'));stack.push(ahead);}
41ret=false;}
42return ret;}
43function xpathMatchStack(stack,pattern){var S=stack.length;var P=pattern.length;var p,s;var match=[];match.matchlength=0;var ds=0;for(p=P-1,s=S-1;p>=0&&s>=0;--p,s-=ds){ds=0;var qmatch=[];if(pattern[p]==Q_MM){p-=1;match.push(qmatch);while(s-ds>=0&&stack[s-ds].tag==pattern[p]){qmatch.push(stack[s-ds]);ds+=1;match.matchlength+=1;}}else if(pattern[p]==Q_01){p-=1;match.push(qmatch);while(s-ds>=0&&ds<2&&stack[s-ds].tag==pattern[p]){qmatch.push(stack[s-ds]);ds+=1;match.matchlength+=1;}}else if(pattern[p]==Q_1M){p-=1;match.push(qmatch);if(stack[s].tag==pattern[p]){while(s-ds>=0&&stack[s-ds].tag==pattern[p]){qmatch.push(stack[s-ds]);ds+=1;match.matchlength+=1;}}else{return[];}}else if(stack[s].tag==pattern[p]){match.push(stack[s]);ds+=1;match.matchlength+=1;}else{return[];}
44reverseInplace(qmatch);qmatch.expr=mapExpr(qmatch,function(m){return m.expr;});}
45reverseInplace(match);if(p==-1){return match;}else{return[];}}
46function xpathTokenPrecedence(tag){return tag.prec||2;}
47function xpathGrammarPrecedence(frame){var ret=0;if(frame.rule){if(frame.rule.length>=3&&frame.rule[2]>=0){ret=frame.rule[2];}else{for(var i=0;i<frame.rule[1].length;++i){var p=xpathTokenPrecedence(frame.rule[1][i]);ret=Math.max(ret,p);}}}else if(frame.tag){ret=xpathTokenPrecedence(frame.tag);}else if(frame.length){for(var j=0;j<frame.length;++j){var p=xpathGrammarPrecedence(frame[j]);ret=Math.max(ret,p);}}
48return ret;}
49function stackToString(stack){var ret='';for(var i=0;i<stack.length;++i){if(ret){ret+='\n';}
50ret+=stack[i].tag.label;}
51return ret;}
52function ExprContext(node,opt_position,opt_nodelist,opt_parent){this.node=node;this.position=opt_position||0;this.nodelist=opt_nodelist||[node];this.variables={};this.parent=opt_parent||null;if(opt_parent){this.root=opt_parent.root;}else if(this.node.nodeType==DOM_DOCUMENT_NODE){this.root=node;}else{this.root=node.ownerDocument;}}
53ExprContext.prototype.clone=function(opt_node,opt_position,opt_nodelist){return new ExprContext(opt_node||this.node,typeof opt_position!='undefined'?opt_position:this.position,opt_nodelist||this.nodelist,this);};ExprContext.prototype.setVariable=function(name,value){this.variables[name]=value;};ExprContext.prototype.getVariable=function(name){if(typeof this.variables[name]!='undefined'){return this.variables[name];}else if(this.parent){return this.parent.getVariable(name);}else{return null;}};ExprContext.prototype.setNode=function(position){this.node=this.nodelist[position];this.position=position;};ExprContext.prototype.contextSize=function(){return this.nodelist.length;};function StringValue(value){this.value=value;this.type='string';}
54StringValue.prototype.stringValue=function(){return this.value;};StringValue.prototype.booleanValue=function(){return this.value.length>0;};StringValue.prototype.numberValue=function(){return this.value-0;};StringValue.prototype.nodeSetValue=function(){throw this;};function BooleanValue(value){this.value=value;this.type='boolean';}
55BooleanValue.prototype.stringValue=function(){return''+this.value;};BooleanValue.prototype.booleanValue=function(){return this.value;};BooleanValue.prototype.numberValue=function(){return this.value?1:0;};BooleanValue.prototype.nodeSetValue=function(){throw this;};function NumberValue(value){this.value=value;this.type='number';}
56NumberValue.prototype.stringValue=function(){return''+this.value;};NumberValue.prototype.booleanValue=function(){return!!this.value;};NumberValue.prototype.numberValue=function(){return this.value-0;};NumberValue.prototype.nodeSetValue=function(){throw this;};function NodeSetValue(value){this.value=value;this.type='node-set';}
57NodeSetValue.prototype.stringValue=function(){if(this.value.length==0){return'';}else{return xmlValue(this.value[0]);}};NodeSetValue.prototype.booleanValue=function(){return this.value.length>0;};NodeSetValue.prototype.numberValue=function(){return this.stringValue()-0;};NodeSetValue.prototype.nodeSetValue=function(){return this.value;};function TokenExpr(m){this.value=m;}
58TokenExpr.prototype.evaluate=function(){return new StringValue(this.value);};function LocationExpr(){this.absolute=false;this.steps=[];}
59LocationExpr.prototype.appendStep=function(s){this.steps.push(s);};LocationExpr.prototype.prependStep=function(s){var steps0=this.steps;this.steps=[s];for(var i=0;i<steps0.length;++i){this.steps.push(steps0[i]);}};LocationExpr.prototype.evaluate=function(ctx){var start;if(this.absolute){start=ctx.root;}else{start=ctx.node;}
60var nodes=[];xPathStep(nodes,this.steps,0,start,ctx);return new NodeSetValue(nodes);};function xPathStep(nodes,steps,step,input,ctx){var s=steps[step];var ctx2=ctx.clone(input);var nodelist=s.evaluate(ctx2).nodeSetValue();for(var i=0;i<nodelist.length;++i){if(step==steps.length-1){nodes.push(nodelist[i]);}else{xPathStep(nodes,steps,step+1,nodelist[i],ctx);}}}
61function StepExpr(axis,nodetest,opt_predicate){this.axis=axis;this.nodetest=nodetest;this.predicate=opt_predicate||[];}
62StepExpr.prototype.appendPredicate=function(p){this.predicate.push(p);};StepExpr.prototype.evaluate=function(ctx){var input=ctx.node;var nodelist=[];if(this.axis==xpathAxis.ANCESTOR_OR_SELF){nodelist.push(input);for(var n=input.parentNode;n;n=n.parentNode){nodelist.push(n);}}else if(this.axis==xpathAxis.ANCESTOR){for(var n=input.parentNode;n;n=n.parentNode){nodelist.push(n);}}else if(this.axis==xpathAxis.ATTRIBUTE){copyArray(nodelist,input.attributes);}else if(this.axis==xpathAxis.CHILD){copyArray(nodelist,input.childNodes);}else if(this.axis==xpathAxis.DESCENDANT_OR_SELF){nodelist.push(input);xpathCollectDescendants(nodelist,input);}else if(this.axis==xpathAxis.DESCENDANT){xpathCollectDescendants(nodelist,input);}else if(this.axis==xpathAxis.FOLLOWING){for(var n=input;n;n=n.parentNode){for(var nn=n.nextSibling;nn;nn=nn.nextSibling){nodelist.push(nn);xpathCollectDescendants(nodelist,nn);}}}else if(this.axis==xpathAxis.FOLLOWING_SIBLING){for(var n=input.nextSibling;n;n=n.nextSibling){nodelist.push(n);}}else if(this.axis==xpathAxis.NAMESPACE){alert('not implemented: axis namespace');}else if(this.axis==xpathAxis.PARENT){if(input.parentNode){nodelist.push(input.parentNode);}}else if(this.axis==xpathAxis.PRECEDING){for(var n=input;n;n=n.parentNode){for(var nn=n.previousSibling;nn;nn=nn.previousSibling){nodelist.push(nn);xpathCollectDescendantsReverse(nodelist,nn);}}}else if(this.axis==xpathAxis.PRECEDING_SIBLING){for(var n=input.previousSibling;n;n=n.previousSibling){nodelist.push(n);}}else if(this.axis==xpathAxis.SELF){nodelist.push(input);}else{throw'ERROR -- NO SUCH AXIS: '+this.axis;}
63var nodelist0=nodelist;nodelist=[];for(var i=0;i<nodelist0.length;++i){var n=nodelist0[i];if(this.nodetest.evaluate(ctx.clone(n,i,nodelist0)).booleanValue()){nodelist.push(n);}}
64for(var i=0;i<this.predicate.length;++i){var nodelist0=nodelist;nodelist=[];for(var ii=0;ii<nodelist0.length;++ii){var n=nodelist0[ii];if(this.predicate[i].evaluate(ctx.clone(n,ii,nodelist0)).booleanValue()){nodelist.push(n);}}}
65return new NodeSetValue(nodelist);};function NodeTestAny(){this.value=new BooleanValue(true);}
66NodeTestAny.prototype.evaluate=function(ctx){return this.value;};function NodeTestElementOrAttribute(){}
67NodeTestElementOrAttribute.prototype.evaluate=function(ctx){return new BooleanValue(ctx.node.nodeType==DOM_ELEMENT_NODE||ctx.node.nodeType==DOM_ATTRIBUTE_NODE);};function NodeTestText(){}
68NodeTestText.prototype.evaluate=function(ctx){return new BooleanValue(ctx.node.nodeType==DOM_TEXT_NODE);};function NodeTestComment(){}
69NodeTestComment.prototype.evaluate=function(ctx){return new BooleanValue(ctx.node.nodeType==DOM_COMMENT_NODE);};function NodeTestPI(target){this.target=target;}
70NodeTestPI.prototype.evaluate=function(ctx){return new
71BooleanValue(ctx.node.nodeType==DOM_PROCESSING_INSTRUCTION_NODE&&(!this.target||ctx.node.nodeName==this.target));};function NodeTestNC(nsprefix){this.regex=new RegExp("^"+nsprefix+":");this.nsprefix=nsprefix;}
72NodeTestNC.prototype.evaluate=function(ctx){var n=ctx.node;return new BooleanValue(this.regex.match(n.nodeName));};function NodeTestName(name){this.name=name;}
73NodeTestName.prototype.evaluate=function(ctx){var n=ctx.node;return new BooleanValue(n.nodeName==this.name);};function PredicateExpr(expr){this.expr=expr;}
74PredicateExpr.prototype.evaluate=function(ctx){var v=this.expr.evaluate(ctx);if(v.type=='number'){return new BooleanValue(ctx.position==v.numberValue()-1);}else{return new BooleanValue(v.booleanValue());}};function FunctionCallExpr(name){this.name=name;this.args=[];}
75FunctionCallExpr.prototype.appendArg=function(arg){this.args.push(arg);};FunctionCallExpr.prototype.evaluate=function(ctx){var fn=''+this.name.value;var f=this.xpathfunctions[fn];if(f){return f.call(this,ctx);}else{xpathLog('XPath NO SUCH FUNCTION '+fn);return new BooleanValue(false);}};FunctionCallExpr.prototype.xpathfunctions={'last':function(ctx){assert(this.args.length==0);return new NumberValue(ctx.contextSize());},'position':function(ctx){assert(this.args.length==0);return new NumberValue(ctx.position+1);},'count':function(ctx){assert(this.args.length==1);var v=this.args[0].evaluate(ctx);return new NumberValue(v.nodeSetValue().length);},'id':function(ctx){assert(this.args.length==1);var e=this.args[0].evaluate(ctx);var ret=[];var ids;if(e.type=='node-set'){ids=[];var en=e.nodeSetValue();for(var i=0;i<en.length;++i){var v=xmlValue(en[i]).split(/\s+/);for(var ii=0;ii<v.length;++ii){ids.push(v[ii]);}}}else{ids=e.stringValue().split(/\s+/);}
76var d=ctx.node.ownerDocument;for(var i=0;i<ids.length;++i){var n=d.getElementById(ids[i]);if(n){ret.push(n);}}
77return new NodeSetValue(ret);},'local-name':function(ctx){alert('not implmented yet: XPath function local-name()');},'namespace-uri':function(ctx){alert('not implmented yet: XPath function namespace-uri()');},'name':function(ctx){assert(this.args.length==1||this.args.length==0);var n;if(this.args.length==0){n=[ctx.node];}else{n=this.args[0].evaluate(ctx).nodeSetValue();}
78if(n.length==0){return new StringValue('');}else{return new StringValue(n[0].nodeName);}},'string':function(ctx){assert(this.args.length==1||this.args.length==0);if(this.args.length==0){return new StringValue(new NodeSetValue([ctx.node]).stringValue());}else{return new StringValue(this.args[0].evaluate(ctx).stringValue());}},'concat':function(ctx){var ret='';for(var i=0;i<this.args.length;++i){ret+=this.args[i].evaluate(ctx).stringValue();}
79return new StringValue(ret);},'starts-with':function(ctx){assert(this.args.length==2);var s0=this.args[0].evaluate(ctx).stringValue();var s1=this.args[1].evaluate(ctx).stringValue();return new BooleanValue(s0.indexOf(s1)==0);},'contains':function(ctx){assert(this.args.length==2);var s0=this.args[0].evaluate(ctx).stringValue();var s1=this.args[1].evaluate(ctx).stringValue();return new BooleanValue(s0.indexOf(s1)!=-1);},'substring-before':function(ctx){assert(this.args.length==2);var s0=this.args[0].evaluate(ctx).stringValue();var s1=this.args[1].evaluate(ctx).stringValue();var i=s0.indexOf(s1);var ret;if(i==-1){ret='';}else{ret=s0.substr(0,i);}
80return new StringValue(ret);},'substring-after':function(ctx){assert(this.args.length==2);var s0=this.args[0].evaluate(ctx).stringValue();var s1=this.args[1].evaluate(ctx).stringValue();var i=s0.indexOf(s1);var ret;if(i==-1){ret='';}else{ret=s0.substr(i+s1.length);}
81return new StringValue(ret);},'substring':function(ctx){assert(this.args.length==2||this.args.length==3);var s0=this.args[0].evaluate(ctx).stringValue();var s1=this.args[1].evaluate(ctx).numberValue();var ret;if(this.args.length==2){var i1=Math.max(0,Math.round(s1)-1);ret=s0.substr(i1);}else{var s2=this.args[2].evaluate(ctx).numberValue();var i0=Math.round(s1)-1;var i1=Math.max(0,i0);var i2=Math.round(s2)-Math.max(0,-i0);ret=s0.substr(i1,i2);}
82return new StringValue(ret);},'string-length':function(ctx){var s;if(this.args.length>0){s=this.args[0].evaluate(ctx).stringValue();}else{s=new NodeSetValue([ctx.node]).stringValue();}
83return new NumberValue(s.length);},'normalize-space':function(ctx){var s;if(this.args.length>0){s=this.args[0].evaluate(ctx).stringValue();}else{s=new NodeSetValue([ctx.node]).stringValue();}
84s=s.replace(/^\s*/,'').replace(/\s*$/,'').replace(/\s+/g,' ');return new StringValue(s);},'translate':function(ctx){assert(this.args.length==3);var s0=this.args[0].evaluate(ctx).stringValue();var s1=this.args[1].evaluate(ctx).stringValue();var s2=this.args[2].evaluate(ctx).stringValue();for(var i=0;i<s1.length;++i){s0=s0.replace(new RegExp(s1.charAt(i),'g'),s2.charAt(i));}
85return new StringValue(s0);},'boolean':function(ctx){assert(this.args.length==1);return new BooleanValue(this.args[0].evaluate(ctx).booleanValue());},'not':function(ctx){assert(this.args.length==1);var ret=!this.args[0].evaluate(ctx).booleanValue();return new BooleanValue(ret);},'true':function(ctx){assert(this.args.length==0);return new BooleanValue(true);},'false':function(ctx){assert(this.args.length==0);return new BooleanValue(false);},'lang':function(ctx){assert(this.args.length==1);var lang=this.args[0].evaluate(ctx).stringValue();var xmllang;var n=ctx.node;while(n&&n!=n.parentNode){xmllang=n.getAttribute('xml:lang');if(xmllang){break;}
86n=n.parentNode;}
87if(!xmllang){return new BooleanValue(false);}else{var re=new RegExp('^'+lang+'$','i');return new BooleanValue(xmllang.match(re)||xmllang.replace(/_.*$/,'').match(re));}},'number':function(ctx){assert(this.args.length==1||this.args.length==0);if(this.args.length==1){return new NumberValue(this.args[0].evaluate(ctx).numberValue());}else{return new NumberValue(new NodeSetValue([ctx.node]).numberValue());}},'sum':function(ctx){assert(this.args.length==1);var n=this.args[0].evaluate(ctx).nodeSetValue();var sum=0;for(var i=0;i<n.length;++i){sum+=xmlValue(n[i])-0;}
88return new NumberValue(sum);},'floor':function(ctx){assert(this.args.length==1);var num=this.args[0].evaluate(ctx).numberValue();return new NumberValue(Math.floor(num));},'ceiling':function(ctx){assert(this.args.length==1);var num=this.args[0].evaluate(ctx).numberValue();return new NumberValue(Math.ceil(num));},'round':function(ctx){assert(this.args.length==1);var num=this.args[0].evaluate(ctx).numberValue();return new NumberValue(Math.round(num));},'ext-join':function(ctx){assert(this.args.length==2);var nodes=this.args[0].evaluate(ctx).nodeSetValue();var delim=this.args[1].evaluate(ctx).stringValue();var ret='';for(var i=0;i<nodes.length;++i){if(ret){ret+=delim;}
89ret+=xmlValue(nodes[i]);}
90return new StringValue(ret);},'ext-if':function(ctx){assert(this.args.length==3);if(this.args[0].evaluate(ctx).booleanValue()){return this.args[1].evaluate(ctx);}else{return this.args[2].evaluate(ctx);}},'ext-cardinal':function(ctx){assert(this.args.length>=1);var c=this.args[0].evaluate(ctx).numberValue();var ret=[];for(var i=0;i<c;++i){ret.push(ctx.node);}
91return new NodeSetValue(ret);}};function UnionExpr(expr1,expr2){this.expr1=expr1;this.expr2=expr2;}
92UnionExpr.prototype.evaluate=function(ctx){var nodes1=this.expr1.evaluate(ctx).nodeSetValue();var nodes2=this.expr2.evaluate(ctx).nodeSetValue();var I1=nodes1.length;for(var i2=0;i2<nodes2.length;++i2){var n=nodes2[i2];var inBoth=false;for(var i1=0;i1<I1;++i1){if(nodes1[i1]==n){inBoth=true;i1=I1;}}
93if(!inBoth){nodes1.push(n);}}
94return new NodeSetValue(nodes1);};function PathExpr(filter,rel){this.filter=filter;this.rel=rel;}
95PathExpr.prototype.evaluate=function(ctx){var nodes=this.filter.evaluate(ctx).nodeSetValue();var nodes1=[];for(var i=0;i<nodes.length;++i){var nodes0=this.rel.evaluate(ctx.clone(nodes[i],i,nodes)).nodeSetValue();for(var ii=0;ii<nodes0.length;++ii){nodes1.push(nodes0[ii]);}}
96return new NodeSetValue(nodes1);};function FilterExpr(expr,predicate){this.expr=expr;this.predicate=predicate;}
97FilterExpr.prototype.evaluate=function(ctx){var nodes=this.expr.evaluate(ctx).nodeSetValue();for(var i=0;i<this.predicate.length;++i){var nodes0=nodes;nodes=[];for(var j=0;j<nodes0.length;++j){var n=nodes0[j];if(this.predicate[i].evaluate(ctx.clone(n,j,nodes0)).booleanValue()){nodes.push(n);}}}
98return new NodeSetValue(nodes);};function UnaryMinusExpr(expr){this.expr=expr;}
99UnaryMinusExpr.prototype.evaluate=function(ctx){return new NumberValue(-this.expr.evaluate(ctx).numberValue());};function BinaryExpr(expr1,op,expr2){this.expr1=expr1;this.expr2=expr2;this.op=op;}
100BinaryExpr.prototype.evaluate=function(ctx){var ret;switch(this.op.value){case'or':ret=new BooleanValue(this.expr1.evaluate(ctx).booleanValue()||this.expr2.evaluate(ctx).booleanValue());break;case'and':ret=new BooleanValue(this.expr1.evaluate(ctx).booleanValue()&&this.expr2.evaluate(ctx).booleanValue());break;case'+':ret=new NumberValue(this.expr1.evaluate(ctx).numberValue()+
101this.expr2.evaluate(ctx).numberValue());break;case'-':ret=new NumberValue(this.expr1.evaluate(ctx).numberValue()-
102this.expr2.evaluate(ctx).numberValue());break;case'*':ret=new NumberValue(this.expr1.evaluate(ctx).numberValue()*this.expr2.evaluate(ctx).numberValue());break;case'mod':ret=new NumberValue(this.expr1.evaluate(ctx).numberValue()%this.expr2.evaluate(ctx).numberValue());break;case'div':ret=new NumberValue(this.expr1.evaluate(ctx).numberValue()/this.expr2.evaluate(ctx).numberValue());break;case'=':ret=this.compare(ctx,function(x1,x2){return x1==x2;});break;case'!=':ret=this.compare(ctx,function(x1,x2){return x1!=x2;});break;case'<':ret=this.compare(ctx,function(x1,x2){return x1<x2;});break;case'<=':ret=this.compare(ctx,function(x1,x2){return x1<=x2;});break;case'>':ret=this.compare(ctx,function(x1,x2){return x1>x2;});break;case'>=':ret=this.compare(ctx,function(x1,x2){return x1>=x2;});break;default:alert('BinaryExpr.evaluate: '+this.op.value);}
103return ret;};BinaryExpr.prototype.compare=function(ctx,cmp){var v1=this.expr1.evaluate(ctx);var v2=this.expr2.evaluate(ctx);var ret;if(v1.type=='node-set'&&v2.type=='node-set'){var n1=v1.nodeSetValue();var n2=v2.nodeSetValue();ret=false;for(var i1=0;i1<n1.length;++i1){for(var i2=0;i2<n2.length;++i2){if(cmp(xmlValue(n1[i1]),xmlValue(n2[i2]))){ret=true;i2=n2.length;i1=n1.length;}}}}else if(v1.type=='node-set'||v2.type=='node-set'){if(v1.type=='number'){var s=v1.numberValue();var n=v2.nodeSetValue();ret=false;for(var i=0;i<n.length;++i){var nn=xmlValue(n[i])-0;if(cmp(s,nn)){ret=true;break;}}}else if(v2.type=='number'){var n=v1.nodeSetValue();var s=v2.numberValue();ret=false;for(var i=0;i<n.length;++i){var nn=xmlValue(n[i])-0;if(cmp(nn,s)){ret=true;break;}}}else if(v1.type=='string'){var s=v1.stringValue();var n=v2.nodeSetValue();ret=false;for(var i=0;i<n.length;++i){var nn=xmlValue(n[i]);if(cmp(s,nn)){ret=true;break;}}}else if(v2.type=='string'){var n=v1.nodeSetValue();var s=v2.stringValue();ret=false;for(var i=0;i<n.length;++i){var nn=xmlValue(n[i]);if(cmp(nn,s)){ret=true;break;}}}else{ret=cmp(v1.booleanValue(),v2.booleanValue());}}else if(v1.type=='boolean'||v2.type=='boolean'){ret=cmp(v1.booleanValue(),v2.booleanValue());}else if(v1.type=='number'||v2.type=='number'){ret=cmp(v1.numberValue(),v2.numberValue());}else{ret=cmp(v1.stringValue(),v2.stringValue());}
104return new BooleanValue(ret);};function LiteralExpr(value){this.value=value;}
105LiteralExpr.prototype.evaluate=function(ctx){return new StringValue(this.value);};function NumberExpr(value){this.value=value;}
106NumberExpr.prototype.evaluate=function(ctx){return new NumberValue(this.value);};function VariableExpr(name){this.name=name;}
107VariableExpr.prototype.evaluate=function(ctx){return ctx.getVariable(this.name);};function makeTokenExpr(m){return new TokenExpr(m);}
108function passExpr(e){return e;}
109function makeLocationExpr1(slash,rel){rel.absolute=true;return rel;}
110function makeLocationExpr2(dslash,rel){rel.absolute=true;rel.prependStep(makeAbbrevStep(dslash.value));return rel;}
111function makeLocationExpr3(slash){var ret=new LocationExpr();ret.appendStep(makeAbbrevStep('.'));ret.absolute=true;return ret;}
112function makeLocationExpr4(dslash){var ret=new LocationExpr();ret.absolute=true;ret.appendStep(makeAbbrevStep(dslash.value));return ret;}
113function makeLocationExpr5(step){var ret=new LocationExpr();ret.appendStep(step);return ret;}
114function makeLocationExpr6(rel,slash,step){rel.appendStep(step);return rel;}
115function makeLocationExpr7(rel,dslash,step){rel.appendStep(makeAbbrevStep(dslash.value));return rel;}
116function makeStepExpr1(dot){return makeAbbrevStep(dot.value);}
117function makeStepExpr2(ddot){return makeAbbrevStep(ddot.value);}
118function makeStepExpr3(axisname,axis,nodetest){return new StepExpr(axisname.value,nodetest);}
119function makeStepExpr4(at,nodetest){return new StepExpr('attribute',nodetest);}
120function makeStepExpr5(nodetest){return new StepExpr('child',nodetest);}
121function makeStepExpr6(step,predicate){step.appendPredicate(predicate);return step;}
122function makeAbbrevStep(abbrev){switch(abbrev){case'//':return new StepExpr('descendant-or-self',new NodeTestAny);case'.':return new StepExpr('self',new NodeTestAny);case'..':return new StepExpr('parent',new NodeTestAny);}}
123function makeNodeTestExpr1(asterisk){return new NodeTestElementOrAttribute;}
124function makeNodeTestExpr2(ncname,colon,asterisk){return new NodeTestNC(ncname.value);}
125function makeNodeTestExpr3(qname){return new NodeTestName(qname.value);}
126function makeNodeTestExpr4(typeo,parenc){var type=typeo.value.replace(/\s*\($/,'');switch(type){case'node':return new NodeTestAny;case'text':return new NodeTestText;case'comment':return new NodeTestComment;case'processing-instruction':return new NodeTestPI('');}}
127function makeNodeTestExpr5(typeo,target,parenc){var type=typeo.replace(/\s*\($/,'');if(type!='processing-instruction'){throw type;}
128return new NodeTestPI(target.value);}
129function makePredicateExpr(pareno,expr,parenc){return new PredicateExpr(expr);}
130function makePrimaryExpr(pareno,expr,parenc){return expr;}
131function makeFunctionCallExpr1(name,pareno,parenc){return new FunctionCallExpr(name);}
132function makeFunctionCallExpr2(name,pareno,arg1,args,parenc){var ret=new FunctionCallExpr(name);ret.appendArg(arg1);for(var i=0;i<args.length;++i){ret.appendArg(args[i]);}
133return ret;}
134function makeArgumentExpr(comma,expr){return expr;}
135function makeUnionExpr(expr1,pipe,expr2){return new UnionExpr(expr1,expr2);}
136function makePathExpr1(filter,slash,rel){return new PathExpr(filter,rel);}
137function makePathExpr2(filter,dslash,rel){rel.prependStep(makeAbbrevStep(dslash.value));return new PathExpr(filter,rel);}
138function makeFilterExpr(expr,predicates){if(predicates.length>0){return new FilterExpr(expr,predicates);}else{return expr;}}
139function makeUnaryMinusExpr(minus,expr){return new UnaryMinusExpr(expr);}
140function makeBinaryExpr(expr1,op,expr2){return new BinaryExpr(expr1,op,expr2);}
141function makeLiteralExpr(token){var value=token.value.substring(1,token.value.length-1);return new LiteralExpr(value);}
142function makeNumberExpr(token){return new NumberExpr(token.value);}
143function makeVariableReference(dollar,name){return new VariableExpr(name.value);}
144function makeSimpleExpr(expr){if(expr.charAt(0)=='$'){return new VariableExpr(expr.substr(1));}else if(expr.charAt(0)=='@'){var a=new NodeTestName(expr.substr(1));var b=new StepExpr('attribute',a);var c=new LocationExpr();c.appendStep(b);return c;}else if(expr.match(/^[0-9]+$/)){return new NumberExpr(expr);}else{var a=new NodeTestName(expr);var b=new StepExpr('child',a);var c=new LocationExpr();c.appendStep(b);return c;}}
145function makeSimpleExpr2(expr){var steps=stringSplit(expr,'/');var c=new LocationExpr();for(var i=0;i<steps.length;++i){var a=new NodeTestName(steps[i]);var b=new StepExpr('child',a);c.appendStep(b);}
146return c;}
147var xpathAxis={ANCESTOR_OR_SELF:'ancestor-or-self',ANCESTOR:'ancestor',ATTRIBUTE:'attribute',CHILD:'child',DESCENDANT_OR_SELF:'descendant-or-self',DESCENDANT:'descendant',FOLLOWING_SIBLING:'following-sibling',FOLLOWING:'following',NAMESPACE:'namespace',PARENT:'parent',PRECEDING_SIBLING:'preceding-sibling',PRECEDING:'preceding',SELF:'self'};var xpathAxesRe=[xpathAxis.ANCESTOR_OR_SELF,xpathAxis.ANCESTOR,xpathAxis.ATTRIBUTE,xpathAxis.CHILD,xpathAxis.DESCENDANT_OR_SELF,xpathAxis.DESCENDANT,xpathAxis.FOLLOWING_SIBLING,xpathAxis.FOLLOWING,xpathAxis.NAMESPACE,xpathAxis.PARENT,xpathAxis.PRECEDING_SIBLING,xpathAxis.PRECEDING,xpathAxis.SELF].join('|');var TOK_PIPE={label:"|",prec:17,re:new RegExp("^\\|")};var TOK_DSLASH={label:"//",prec:19,re:new RegExp("^//")};var TOK_SLASH={label:"/",prec:30,re:new RegExp("^/")};var TOK_AXIS={label:"::",prec:20,re:new RegExp("^::")};var TOK_COLON={label:":",prec:1000,re:new RegExp("^:")};var TOK_AXISNAME={label:"[axis]",re:new RegExp('^('+xpathAxesRe+')')};var TOK_PARENO={label:"(",prec:34,re:new RegExp("^\\(")};var TOK_PARENC={label:")",re:new RegExp("^\\)")};var TOK_DDOT={label:"..",prec:34,re:new RegExp("^\\.\\.")};var TOK_DOT={label:".",prec:34,re:new RegExp("^\\.")};var TOK_AT={label:"@",prec:34,re:new RegExp("^@")};var TOK_COMMA={label:",",re:new RegExp("^,")};var TOK_OR={label:"or",prec:10,re:new RegExp("^or\\b")};var TOK_AND={label:"and",prec:11,re:new RegExp("^and\\b")};var TOK_EQ={label:"=",prec:12,re:new RegExp("^=")};var TOK_NEQ={label:"!=",prec:12,re:new RegExp("^!=")};var TOK_GE={label:">=",prec:13,re:new RegExp("^>=")};var TOK_GT={label:">",prec:13,re:new RegExp("^>")};var TOK_LE={label:"<=",prec:13,re:new RegExp("^<=")};var TOK_LT={label:"<",prec:13,re:new RegExp("^<")};var TOK_PLUS={label:"+",prec:14,re:new RegExp("^\\+"),left:true};var TOK_MINUS={label:"-",prec:14,re:new RegExp("^\\-"),left:true};var TOK_DIV={label:"div",prec:15,re:new RegExp("^div\\b"),left:true};var TOK_MOD={label:"mod",prec:15,re:new RegExp("^mod\\b"),left:true};var TOK_BRACKO={label:"[",prec:32,re:new RegExp("^\\[")};var TOK_BRACKC={label:"]",re:new RegExp("^\\]")};var TOK_DOLLAR={label:"$",re:new RegExp("^\\$")};var TOK_NCNAME={label:"[ncname]",re:new RegExp('^'+XML_NC_NAME)};var TOK_ASTERISK={label:"*",prec:15,re:new RegExp("^\\*"),left:true};var TOK_LITERALQ={label:"[litq]",prec:20,re:new RegExp("^'[^\\']*'")};var TOK_LITERALQQ={label:"[litqq]",prec:20,re:new RegExp('^"[^\\"]*"')};var TOK_NUMBER={label:"[number]",prec:35,re:new RegExp('^\\d+(\\.\\d*)?')};var TOK_QNAME={label:"[qname]",re:new RegExp('^('+XML_NC_NAME+':)?'+XML_NC_NAME)};var TOK_NODEO={label:"[nodetest-start]",re:new RegExp('^(processing-instruction|comment|text|node)\\(')};var xpathTokenRules=[TOK_DSLASH,TOK_SLASH,TOK_DDOT,TOK_DOT,TOK_AXIS,TOK_COLON,TOK_AXISNAME,TOK_NODEO,TOK_PARENO,TOK_PARENC,TOK_BRACKO,TOK_BRACKC,TOK_AT,TOK_COMMA,TOK_OR,TOK_AND,TOK_NEQ,TOK_EQ,TOK_GE,TOK_GT,TOK_LE,TOK_LT,TOK_PLUS,TOK_MINUS,TOK_ASTERISK,TOK_PIPE,TOK_MOD,TOK_DIV,TOK_LITERALQ,TOK_LITERALQQ,TOK_NUMBER,TOK_QNAME,TOK_NCNAME,TOK_DOLLAR];var XPathLocationPath={label:"LocationPath"};var XPathRelativeLocationPath={label:"RelativeLocationPath"};var XPathAbsoluteLocationPath={label:"AbsoluteLocationPath"};var XPathStep={label:"Step"};var XPathNodeTest={label:"NodeTest"};var XPathPredicate={label:"Predicate"};var XPathLiteral={label:"Literal"};var XPathExpr={label:"Expr"};var XPathPrimaryExpr={label:"PrimaryExpr"};var XPathVariableReference={label:"Variablereference"};var XPathNumber={label:"Number"};var XPathFunctionCall={label:"FunctionCall"};var XPathArgumentRemainder={label:"ArgumentRemainder"};var XPathPathExpr={label:"PathExpr"};var XPathUnionExpr={label:"UnionExpr"};var XPathFilterExpr={label:"FilterExpr"};var XPathDigits={label:"Digits"};var xpathNonTerminals=[XPathLocationPath,XPathRelativeLocationPath,XPathAbsoluteLocationPath,XPathStep,XPathNodeTest,XPathPredicate,XPathLiteral,XPathExpr,XPathPrimaryExpr,XPathVariableReference,XPathNumber,XPathFunctionCall,XPathArgumentRemainder,XPathPathExpr,XPathUnionExpr,XPathFilterExpr,XPathDigits];var Q_01={label:"?"};var Q_MM={label:"*"};var Q_1M={label:"+"};var ASSOC_LEFT=true;var xpathGrammarRules=[[XPathLocationPath,[XPathRelativeLocationPath],18,passExpr],[XPathLocationPath,[XPathAbsoluteLocationPath],18,passExpr],[XPathAbsoluteLocationPath,[TOK_SLASH,XPathRelativeLocationPath],18,makeLocationExpr1],[XPathAbsoluteLocationPath,[TOK_DSLASH,XPathRelativeLocationPath],18,makeLocationExpr2],[XPathAbsoluteLocationPath,[TOK_SLASH],0,makeLocationExpr3],[XPathAbsoluteLocationPath,[TOK_DSLASH],0,makeLocationExpr4],[XPathRelativeLocationPath,[XPathStep],31,makeLocationExpr5],[XPathRelativeLocationPath,[XPathRelativeLocationPath,TOK_SLASH,XPathStep],31,makeLocationExpr6],[XPathRelativeLocationPath,[XPathRelativeLocationPath,TOK_DSLASH,XPathStep],31,makeLocationExpr7],[XPathStep,[TOK_DOT],33,makeStepExpr1],[XPathStep,[TOK_DDOT],33,makeStepExpr2],[XPathStep,[TOK_AXISNAME,TOK_AXIS,XPathNodeTest],33,makeStepExpr3],[XPathStep,[TOK_AT,XPathNodeTest],33,makeStepExpr4],[XPathStep,[XPathNodeTest],33,makeStepExpr5],[XPathStep,[XPathStep,XPathPredicate],33,makeStepExpr6],[XPathNodeTest,[TOK_ASTERISK],33,makeNodeTestExpr1],[XPathNodeTest,[TOK_NCNAME,TOK_COLON,TOK_ASTERISK],33,makeNodeTestExpr2],[XPathNodeTest,[TOK_QNAME],33,makeNodeTestExpr3],[XPathNodeTest,[TOK_NODEO,TOK_PARENC],33,makeNodeTestExpr4],[XPathNodeTest,[TOK_NODEO,XPathLiteral,TOK_PARENC],33,makeNodeTestExpr5],[XPathPredicate,[TOK_BRACKO,XPathExpr,TOK_BRACKC],33,makePredicateExpr],[XPathPrimaryExpr,[XPathVariableReference],33,passExpr],[XPathPrimaryExpr,[TOK_PARENO,XPathExpr,TOK_PARENC],33,makePrimaryExpr],[XPathPrimaryExpr,[XPathLiteral],30,passExpr],[XPathPrimaryExpr,[XPathNumber],30,passExpr],[XPathPrimaryExpr,[XPathFunctionCall],30,passExpr],[XPathFunctionCall,[TOK_QNAME,TOK_PARENO,TOK_PARENC],-1,makeFunctionCallExpr1],[XPathFunctionCall,[TOK_QNAME,TOK_PARENO,XPathExpr,XPathArgumentRemainder,Q_MM,TOK_PARENC],-1,makeFunctionCallExpr2],[XPathArgumentRemainder,[TOK_COMMA,XPathExpr],-1,makeArgumentExpr],[XPathUnionExpr,[XPathPathExpr],20,passExpr],[XPathUnionExpr,[XPathUnionExpr,TOK_PIPE,XPathPathExpr],20,makeUnionExpr],[XPathPathExpr,[XPathLocationPath],20,passExpr],[XPathPathExpr,[XPathFilterExpr],19,passExpr],[XPathPathExpr,[XPathFilterExpr,TOK_SLASH,XPathRelativeLocationPath],20,makePathExpr1],[XPathPathExpr,[XPathFilterExpr,TOK_DSLASH,XPathRelativeLocationPath],20,makePathExpr2],[XPathFilterExpr,[XPathPrimaryExpr,XPathPredicate,Q_MM],20,makeFilterExpr],[XPathExpr,[XPathPrimaryExpr],16,passExpr],[XPathExpr,[XPathUnionExpr],16,passExpr],[XPathExpr,[TOK_MINUS,XPathExpr],-1,makeUnaryMinusExpr],[XPathExpr,[XPathExpr,TOK_OR,XPathExpr],-1,makeBinaryExpr],[XPathExpr,[XPathExpr,TOK_AND,XPathExpr],-1,makeBinaryExpr],[XPathExpr,[XPathExpr,TOK_EQ,XPathExpr],-1,makeBinaryExpr],[XPathExpr,[XPathExpr,TOK_NEQ,XPathExpr],-1,makeBinaryExpr],[XPathExpr,[XPathExpr,TOK_LT,XPathExpr],-1,makeBinaryExpr],[XPathExpr,[XPathExpr,TOK_LE,XPathExpr],-1,makeBinaryExpr],[XPathExpr,[XPathExpr,TOK_GT,XPathExpr],-1,makeBinaryExpr],[XPathExpr,[XPathExpr,TOK_GE,XPathExpr],-1,makeBinaryExpr],[XPathExpr,[XPathExpr,TOK_PLUS,XPathExpr],-1,makeBinaryExpr,ASSOC_LEFT],[XPathExpr,[XPathExpr,TOK_MINUS,XPathExpr],-1,makeBinaryExpr,ASSOC_LEFT],[XPathExpr,[XPathExpr,TOK_ASTERISK,XPathExpr],-1,makeBinaryExpr,ASSOC_LEFT],[XPathExpr,[XPathExpr,TOK_DIV,XPathExpr],-1,makeBinaryExpr,ASSOC_LEFT],[XPathExpr,[XPathExpr,TOK_MOD,XPathExpr],-1,makeBinaryExpr,ASSOC_LEFT],[XPathLiteral,[TOK_LITERALQ],-1,makeLiteralExpr],[XPathLiteral,[TOK_LITERALQQ],-1,makeLiteralExpr],[XPathNumber,[TOK_NUMBER],-1,makeNumberExpr],[XPathVariableReference,[TOK_DOLLAR,TOK_QNAME],200,makeVariableReference]];var xpathRules=[];function xpathParseInit(){if(xpathRules.length){return;}
148xpathGrammarRules.sort(function(a,b){var la=a[1].length;var lb=b[1].length;if(la<lb){return 1;}else if(la>lb){return-1;}else{return 0;}});var k=1;for(var i=0;i<xpathNonTerminals.length;++i){xpathNonTerminals[i].key=k++;}
149for(i=0;i<xpathTokenRules.length;++i){xpathTokenRules[i].key=k++;}
150xpathLog('XPath parse INIT: '+k+' rules');function push_(array,position,element){if(!array[position]){array[position]=[];}
151array[position].push(element);}
152for(i=0;i<xpathGrammarRules.length;++i){var rule=xpathGrammarRules[i];var pattern=rule[1];for(var j=pattern.length-1;j>=0;--j){if(pattern[j]==Q_1M){push_(xpathRules,pattern[j-1].key,rule);break;}else if(pattern[j]==Q_MM||pattern[j]==Q_01){push_(xpathRules,pattern[j-1].key,rule);--j;}else{push_(xpathRules,pattern[j].key,rule);break;}}}
153xpathLog('XPath parse INIT: '+xpathRules.length+' rule bins');var sum=0;mapExec(xpathRules,function(i){if(i){sum+=i.length;}});xpathLog('XPath parse INIT: '+(sum/xpathRules.length)+' average bin size');}
154function xpathCollectDescendants(nodelist,node){for(var n=node.firstChild;n;n=n.nextSibling){nodelist.push(n);arguments.callee(nodelist,n);}}
155function xpathCollectDescendantsReverse(nodelist,node){for(var n=node.lastChild;n;n=n.previousSibling){nodelist.push(n);arguments.callee(nodelist,n);}}
156function xpathDomEval(expr,node){var expr1=xpathParse(expr);var ret=expr1.evaluate(new ExprContext(node));return ret;}
157function xpathSort(input,sort){if(sort.length==0){return;}
158var sortlist=[];for(var i=0;i<input.contextSize();++i){var node=input.nodelist[i];var sortitem={node:node,key:[]};var context=input.clone(node,0,[node]);for(var j=0;j<sort.length;++j){var s=sort[j];var value=s.expr.evaluate(context);var evalue;if(s.type=='text'){evalue=value.stringValue();}else if(s.type=='number'){evalue=value.numberValue();}
159sortitem.key.push({value:evalue,order:s.order});}
160sortitem.key.push({value:i,order:'ascending'});sortlist.push(sortitem);}
161sortlist.sort(xpathSortByKey);var nodes=[];for(var i=0;i<sortlist.length;++i){nodes.push(sortlist[i].node);}
162input.nodelist=nodes;input.setNode(0);}
163function xpathSortByKey(v1,v2){for(var i=0;i<v1.key.length;++i){var o=v1.key[i].order=='descending'?-1:1;if(v1.key[i].value>v2.key[i].value){return+1*o;}else if(v1.key[i].value<v2.key[i].value){return-1*o;}}
164return 0;}
165function xpathEval(select,context){var expr=xpathParse(select);var ret=expr.evaluate(context);return ret;}
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