RetroShare/retroshare-qml-app/src/jsonpath.js
Gioacchino Mazzurco d2598dd437 Implemented certificate link handling
Move content of qml directory to parent directory src
Message notification take care of plurar/singular
Fix compilation of service for non-android linux
AddTrustedNode.qml show node details for confirmation before adding
Added TrustedNodeDetails.qml to show nodes details
TrustedNodesView.qml show node details on click
Qml app added minimal infrastructure to delegate link handling
Removed unused icons
2017-04-13 16:47:27 +02:00

89 lines
4.0 KiB
JavaScript

/* JSONPath 0.8.5 - XPath for JSON
*
* Copyright (c) 2007 Stefan Goessner (goessner.net)
* Licensed under the MIT (MIT-LICENSE.txt) licence.
*
*/
function jsonPath(obj, expr, arg) {
var P = {
resultType: arg && arg.resultType || "VALUE",
result: [],
normalize: function(expr) {
var subx = [];
return expr.replace(/[\['](\??\(.*?\))[\]']|\['(.*?)'\]/g, function($0,$1,$2){return "[#"+(subx.push($1||$2)-1)+"]";}) /* http://code.google.com/p/jsonpath/issues/detail?id=4 */
.replace(/'?\.'?|\['?/g, ";")
.replace(/;;;|;;/g, ";..;")
.replace(/;$|'?\]|'$/g, "")
.replace(/#([0-9]+)/g, function($0,$1){return subx[$1];});
},
asPath: function(path) {
var x = path.split(";"), p = "$";
for (var i=1,n=x.length; i<n; i++)
p += /^[0-9*]+$/.test(x[i]) ? ("["+x[i]+"]") : ("['"+x[i]+"']");
return p;
},
store: function(p, v) {
if (p) P.result[P.result.length] = P.resultType == "PATH" ? P.asPath(p) : v;
return !!p;
},
trace: function(expr, val, path) {
if (expr !== "") {
var x = expr.split(";"), loc = x.shift();
x = x.join(";");
if (val && val.hasOwnProperty(loc))
P.trace(x, val[loc], path + ";" + loc);
else if (loc === "*")
P.walk(loc, x, val, path, function(m,l,x,v,p) { P.trace(m+";"+x,v,p); });
else if (loc === "..") {
P.trace(x, val, path);
P.walk(loc, x, val, path, function(m,l,x,v,p) { typeof v[m] === "object" && P.trace("..;"+x,v[m],p+";"+m); });
}
else if (/^\(.*?\)$/.test(loc)) // [(expr)]
P.trace(P.eval(loc, val, path.substr(path.lastIndexOf(";")+1))+";"+x, val, path);
else if (/^\?\(.*?\)$/.test(loc)) // [?(expr)]
P.walk(loc, x, val, path, function(m,l,x,v,p) { if (P.eval(l.replace(/^\?\((.*?)\)$/,"$1"), v instanceof Array ? v[m] : v, m)) P.trace(m+";"+x,v,p); }); // issue 5 resolved
else if (/^(-?[0-9]*):(-?[0-9]*):?([0-9]*)$/.test(loc)) // [start:end:step] phyton slice syntax
P.slice(loc, x, val, path);
else if (/,/.test(loc)) { // [name1,name2,...]
for (var s=loc.split(/'?,'?/),i=0,n=s.length; i<n; i++)
P.trace(s[i]+";"+x, val, path);
}
}
else
P.store(path, val);
},
walk: function(loc, expr, val, path, f) {
if (val instanceof Array) {
for (var i=0,n=val.length; i<n; i++)
if (i in val)
f(i,loc,expr,val,path);
}
else if (typeof val === "object") {
for (var m in val)
if (val.hasOwnProperty(m))
f(m,loc,expr,val,path);
}
},
slice: function(loc, expr, val, path) {
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)
P.trace(i+";"+expr, val, path);
}
},
eval: function(x, _v, _vname) {
try { return $ && _v && eval(x.replace(/(^|[^\\])@/g, "$1_v").replace(/\\@/g, "@")); } // issue 7 : resolved ..
catch(e) { throw new SyntaxError("jsonPath: " + e.message + ": " + x.replace(/(^|[^\\])@/g, "$1_v").replace(/\\@/g, "@")); } // issue 7 : resolved ..
}
};
var $ = obj;
if (expr && obj && (P.resultType == "VALUE" || P.resultType == "PATH")) {
P.trace(P.normalize(expr).replace(/^\$;?/,""), obj, "$"); // issue 6 resolved
return P.result.length ? P.result : false;
}
}