+++ /dev/null
-if(!dojo._hasResource["dojox.jsonPath.query"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
-dojo._hasResource["dojox.jsonPath.query"] = true;
-dojo.provide("dojox.jsonPath.query");
-
-dojox.jsonPath.query = function(/*Object*/obj, /*String*/expr, /*Object*/arg){
- // summaRy
- // Perform jsonPath query `expr` on javascript object or json string `obj`
- // obj - object || json string to perform query on
- // expr - jsonPath expression (string) to be evaluated
- // arg - {}special arugments.
- // resultType: "VALUE"||"BOTH"||"PATH"} (defaults to value)
- // evalType: "RESULT"||"ITEM"} (defaults to ?)
-
- var re = dojox.jsonPath._regularExpressions;
- if (!arg){arg={};}
-
- var strs = [];
- function _str(i){ return strs[i];}
- var acc;
- if (arg.resultType == "PATH" && arg.evalType == "RESULT") throw Error("RESULT based evaluation not supported with PATH based results");
- var P = {
- resultType: arg.resultType || "VALUE",
- normalize: function(expr){
- var subx = [];
- expr = expr.replace(/'([^']|'')*'/g, function(t){return "_str("+(strs.push(eval(t))-1)+")";});
- var ll = -1;
- while(ll!=subx.length){
- ll=subx.length;//TODO: Do expression syntax checking
- expr = expr.replace(/(\??\([^\(\)]*\))/g, function($0){return "#"+(subx.push($0)-1);});
- }
- expr = expr.replace(/[\['](#[0-9]+)[\]']/g,'[$1]')
- .replace(/'?\.'?|\['?/g, ";")
- .replace(/;;;|;;/g, ";..;")
- .replace(/;$|'?\]|'$/g, "");
- ll = -1;
- while(ll!=expr){
- ll=expr;
- expr = expr.replace(/#([0-9]+)/g, function($0,$1){return subx[$1];});
- }
- return expr.split(";");
- },
- asPaths: function(paths){
- for (var j=0;j<paths.length;j++){
- var p = "$";
- var x= paths[j];
- for (var i=1,n=x.length; i<n; i++)
- p += /^[0-9*]+$/.test(x[i]) ? ("["+x[i]+"]") : ("['"+x[i]+"']");
- paths[j]=p;
- }
- return paths;
- },
- exec: function(locs, val, rb){
- var path = ['$'];
- var result=rb?val:[val];
- var paths=[path];
- function add(v, p,def){
- if (v && v.hasOwnProperty(p) && P.resultType != "VALUE") paths.push(path.concat([p]));
- if (def)
- result = v[p];
- else if (v && v.hasOwnProperty(p))
- result.push(v[p]);
- }
- function desc(v){
- result.push(v);
- paths.push(path);
- P.walk(v,function(i){
- if (typeof v[i] ==='object') {
- var oldPath = path;
- path = path.concat(i);
- desc(v[i]);
- path = oldPath;
- }
- });
- }
- function slice(loc, val){
- if (val instanceof Array){
- var len=val.length, start=0, end=len, step=1;
- loc.replace(/^(-?[0-9]*):(-?[0-9]*):?(-?[0-9]*)$/g, function($0,$1,$2,$3){start=parseInt($1||start);end=parseInt($2||end);step=parseInt($3||step);});
- start = (start < 0) ? Math.max(0,start+len) : Math.min(len,start);
- end = (end < 0) ? Math.max(0,end+len) : Math.min(len,end);
- for (var i=start; i<end; i+=step)
- add(val,i);
- }
- }
- function repStr(str){
- var i=loc.match(/^_str\(([0-9]+)\)$/);
- return i?strs[i[1]]:str;
- }
- function oper(val){
- if (/^\(.*?\)$/.test(loc)) // [(expr)]
- add(val, P.eval(loc, val),rb);
- else if (loc === "*"){
- P.walk(val, rb && val instanceof Array ? // if it is result based, there is no point to just return the same array
- function(i){P.walk(val[i],function(j){ add(val[i],j); })} :
- function(i){ add(val,i); });
- }
- else if (loc === "..")
- desc(val);
- else if (/,/.test(loc)){ // [name1,name2,...]
- for (var s=loc.split(/'?,'?/),i=0,n=s.length; i<n; i++)
- add(val,repStr(s[i]));
- }
- else if (/^\?\(.*?\)$/.test(loc)) // [?(expr)]
- P.walk(val, function(i){ if (P.eval(loc.replace(/^\?\((.*?)\)$/,"$1"),val[i])) add(val,i); });
- else if (/^(-?[0-9]*):(-?[0-9]*):?([0-9]*)$/.test(loc)) // [start:end:step] python slice syntax
- slice(loc, val);
- else {
- loc=repStr(loc);
- if (rb && val instanceof Array && !/^[0-9*]+$/.test(loc))
- P.walk(val, function(i){ add(val[i], loc)});
- else
- add(val,loc,rb);
- }
-
- }
- while (locs.length){
- var loc = locs.shift();
- if ((val = result) === null || val===undefined) return val;
- result = [];
- var valPaths = paths;
- paths = [];
- if (rb)
- oper(val)
- else
- P.walk(val,function(i){path=valPaths[i]||path;oper(val[i])});
- }
- if (P.resultType == "BOTH"){
- paths = P.asPaths(paths);
- var newResult = [];
- for (var i =0;i <paths.length;i++)
- newResult.push({path:paths[i],value:result[i]});
- return newResult;
- }
- return P.resultType == "PATH" ? P.asPaths(paths):result;
- },
- walk: function(val, f){
- if (val instanceof Array){
- for (var i=0,n=val.length; i<n; i++)
- if (i in val)
- f(i);
- }
- else if (typeof val === "object"){
- for (var m in val)
- if (val.hasOwnProperty(m))
- f(m);
- }
- },
- eval: function(x, _v){
- try { return $ && _v && eval(x.replace(/@/g,'_v')); }
- catch(e){ throw new SyntaxError("jsonPath: " + e.message + ": " + x.replace(/@/g, "_v").replace(/\^/g, "_a")); }
- }
- };
-
- var $ = obj;
- if (expr && obj){
- return P.exec(P.normalize(expr).slice(1), obj, arg.evalType == "RESULT");
- }
-
- return false;
-
-};
-
-}
projects / eow / blobdiff