root / trunk / web / dojo / dojox / jsonPath / query.js
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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.jsonPath.query"]){ |
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dojo._hasResource["dojox.jsonPath.query"]=true; |
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dojo.provide("dojox.jsonPath.query");
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dojox.jsonPath.query=function(_1,_2,_3){ |
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var re=dojox.jsonPath._regularExpressions;
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if(!_3){
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_3={};
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} |
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var _4=[];
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function _5(i){ |
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return _4[i];
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}; |
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var _6;
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if(_3.resultType=="PATH"&&_3.evalType=="RESULT"){ |
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throw Error("RESULT based evaluation not supported with PATH based results"); |
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} |
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var P={resultType:_3.resultType||"VALUE",normalize:function(_7){ |
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var _8=[];
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_7=_7.replace(/'([^']|'')*'/g,function(t){ |
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return "_str("+(_4.push(eval(t))-1)+")"; |
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}); |
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var ll=-1; |
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while(ll!=_8.length){
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ll=_8.length; |
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_7=_7.replace(/(\??\([^\(\)]*\))/g,function($0){ |
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return "#"+(_8.push($0)-1); |
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}); |
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} |
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_7=_7.replace(/[\['](#[0-9]+)[\]']/g,"[$1]").replace(/'?\.'?|\['?/g,";").replace(/;;;|;;/g,";..;").replace(/;$|'?\]|'$/g,""); |
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ll=-1;
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while(ll!=_7){
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ll=_7; |
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_7=_7.replace(/#([0-9]+)/g,function($0,$1){ |
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return _8[$1]; |
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}); |
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} |
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return _7.split(";"); |
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},asPaths:function(_9){ |
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for(var j=0;j<_9.length;j++){ |
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var p="$"; |
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var x=_9[j];
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for(var i=1,n=x.length;i<n;i++){ |
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p+=/^[0-9*]+$/.test(x[i])?("["+x[i]+"]"):("['"+x[i]+"']"); |
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} |
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_9[j]=p; |
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} |
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return _9;
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},exec:function(_a,_b,rb){ |
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var _c=["$"]; |
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var _d=rb?_b:[_b];
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var _e=[_c];
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function _f(v,p,def){ |
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if(v&&v.hasOwnProperty(p)&&P.resultType!="VALUE"){ |
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_e.push(_c.concat([p])); |
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} |
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if(def){
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_d=v[p]; |
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}else{
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if(v&&v.hasOwnProperty(p)){
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_d.push(v[p]); |
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} |
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} |
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}; |
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function _10(v){ |
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_d.push(v); |
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_e.push(_c); |
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P.walk(v,function(i){
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if(typeof v[i]==="object"){ |
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var _11=_c;
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_c=_c.concat(i); |
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_10(v[i]); |
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_c=_11; |
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} |
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}); |
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}; |
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function _12(loc,val){ |
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if(val instanceof Array){ |
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var len=val.length,_13=0,end=len,_14=1; |
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loc.replace(/^(-?[0-9]*):(-?[0-9]*):?(-?[0-9]*)$/g,function($0,$1,$2,$3){ |
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_13=parseInt($1||_13);
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end=parseInt($2||end);
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_14=parseInt($3||_14);
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}); |
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_13=(_13<0)?Math.max(0,_13+len):Math.min(len,_13); |
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end=(end<0)?Math.max(0,end+len):Math.min(len,end); |
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for(var i=_13;i<end;i+=_14){ |
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_f(val,i); |
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} |
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} |
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}; |
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function _15(str){ |
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var i=loc.match(/^_str\(([0-9]+)\)$/); |
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return i?_4[i[1]]:str; |
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}; |
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function _16(val){ |
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if(/^\(.*?\)$/.test(loc)){ |
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_f(val,P.eval(loc,val),rb); |
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}else{
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if(loc==="*"){ |
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P.walk(val,rb&&val instanceof Array?function(i){ |
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P.walk(val[i],function(j){
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_f(val[i],j); |
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}); |
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}:function(i){
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_f(val,i); |
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}); |
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}else{
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if(loc===".."){ |
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_10(val); |
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}else{
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if(/,/.test(loc)){ |
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for(var s=loc.split(/'?,'?/),i=0,n=s.length;i<n;i++){ |
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_f(val,_15(s[i])); |
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} |
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}else{
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if(/^\?\(.*?\)$/.test(loc)){ |
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P.walk(val,function(i){
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if(P.eval(loc.replace(/^\?\((.*?)\)$/,"$1"),val[i])){ |
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_f(val,i); |
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} |
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}); |
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}else{
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if(/^(-?[0-9]*):(-?[0-9]*):?([0-9]*)$/.test(loc)){ |
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_12(loc,val); |
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}else{
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loc=_15(loc); |
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if(rb&&val instanceof Array&&!/^[0-9*]+$/.test(loc)){ |
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P.walk(val,function(i){
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_f(val[i],loc); |
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}); |
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}else{
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_f(val,loc,rb); |
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} |
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} |
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} |
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} |
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} |
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} |
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} |
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}; |
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while(_a.length){
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var loc=_a.shift();
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if((_b=_d)===null||_b===undefined){ |
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return _b;
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} |
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_d=[]; |
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var _17=_e;
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_e=[]; |
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if(rb){
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_16(_b); |
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}else{
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P.walk(_b,function(i){
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_c=_17[i]||_c; |
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_16(_b[i]); |
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}); |
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} |
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} |
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if(P.resultType=="BOTH"){ |
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_e=P.asPaths(_e); |
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var _18=[];
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for(var i=0;i<_e.length;i++){ |
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_18.push({path:_e[i],value:_d[i]});
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} |
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return _18;
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} |
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return P.resultType=="PATH"?P.asPaths(_e):_d; |
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},walk:function(val,f){ |
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if(val instanceof Array){ |
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for(var i=0,n=val.length;i<n;i++){ |
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if(i in val){ |
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f(i); |
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} |
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} |
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}else{
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if(typeof val==="object"){ |
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for(var m in val){ |
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if(val.hasOwnProperty(m)){
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f(m); |
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} |
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} |
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} |
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} |
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},eval:function(x,_19){ |
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try{
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return $&&_19&&eval(x.replace(/@/g,"_v")); |
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} |
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catch(e){
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throw new SyntaxError("jsonPath: "+e.message+": "+x.replace(/@/g,"_v").replace(/\^/g,"_a")); |
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} |
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}}; |
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var $=_1; |
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if(_2&&_1){
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return P.exec(P.normalize(_2).slice(1),_1,_3.evalType=="RESULT"); |
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} |
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return false; |
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}; |
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} |