gistfile1.js

exports.convertors = {
	"number" : function(x){
		var n = +x;
		return (!isNaN(n)) ? n : x;
	},
	"date"   : function(x){
		var date = x + "0000-01-01T00:00:00Z".substring(x.length);
		date.replace(/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/, function(dummy, y, mp1, d, h, m, s){
			x = new Date(Date.UTC(+y, +mp1 - 1, +d, +h, +m, +s));
		});
		return x;
	},
	/*"array"  : function(x){
		// TODO: arrays should be enclosed with braces!
		if (x.indexOf(',') > -1) {
			var array = [];
			string.split(',').forEach(function(i){
				array.push(stringToValue(i)); // TODO: , parameters));
			});
			return array;
		}
	},*/
	"re"     : function(x){
		// poorman regexp? *foo, bar*
		/***v = (v.charAt(0) != '*') ? '^' + v : v.substring(1);
		v = (v.slice(-1) != '*') ? v + '$' : v.substring(0, v.length-1);***/
		return new RegExp(x, 'i');
	},
	"RE"     : function(x){return new RegExp(x)},
	"boolean": function(x){return Boolean(x)},
	"string" : function(x){return x},
};
function stringToValue(string, parameters){
	function tryConvertor(type, value){
		value = (value instanceof Array) ? value[0] : value;
		var t = exports.convertors[type]; // TODO: how to disallow possible access intrinsic object props here!
		if (t)
			return (t instanceof Function) ? t(value) : t;
		else
			throw new URIError("Unknown type " + type); // TODO: should we throw or just ignore?
	}


		// TODO: arrays should be enclosed with braces!
		if (string.indexOf(',') > -1) {
			var array = [];
			string.split(',').forEach(function(x){
				array.push(stringToValue(x)); // TODO: , parameters));
			});
			return array;
		}


	// try process explicit modifier
	if(string.indexOf(":") > -1){
		var parts = string.split(":");
		return tryConvertor(parts.shift(), decodeURIComponent(parts));
	}
	// substitute positional parameter, if any
	if(string.charAt(0) == "$"){
		return parameters[parseInt(string.substring(1)) - 1];
	}
	// decode the string
	string = decodeURIComponent(string);
	// guess datatype, iterating by convertors
	switch(string){
		case "true": return true;
		case "false": return false;
		case "null": return null;
		case "undefined": return undefined;
	}
	for (var t = ["number","date"], l = t.length, i = 0; i < l; ++i) {
		var v = tryConvertor(t[i], string);
		if (!(typeof v === 'string'))
			return v;
	}
	//
	if(exports.jsonQueryCompatible){
		if(string.charAt(0) == "'" && string.charAt(string.length-1) == "'"){
			return JSON.parse('"' + string.substring(1,string.length-1) + '"');
		}
	}
	return string;
};