hstore.js
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'use strict';
module.exports = {
stringifyPart: function(part) {
switch (typeof part) {
case 'boolean':
case 'number':
return String(part);
case 'string':
return '"' + part.replace(/\\/g, '\\\\').replace(/"/g, '\\"') + '"';
case 'undefined':
return 'NULL';
default:
if (part === null)
return 'NULL';
else
return '"' + JSON.stringify(part).replace(/\\/g, '\\\\').replace(/"/g, '\\"') + '"';
}
},
stringify: function(data) {
var self = this;
return Object.keys(data).map(function(key) {
return self.stringifyPart(key) + '=>' + self.stringifyPart(data[key]);
}).join(',');
},
parsePart: function(part) {
part = part.replace(/\\\\/g, '\\').replace(/\\"/g, '"');
switch (part[0]) {
case '{':
case '[':
return JSON.parse(part);
default:
return part;
}
},
parse: function(string) {
var self = this,
object = { };
if (('string' !== typeof string) || (0 === string.length)) {
return object;
}
var rx = /\"((?:\\\"|[^"])*)\"\s*\=\>\s*((?:true|false|NULL|\d+|\d+\.\d+|\"((?:\\\"|[^"])*)\"))/g;
string = string || '';
string.replace(rx, function(match, key, value, innerValue) {
switch (value) {
case 'true':
object[self.parsePart(key)] = true;
break;
case 'false':
object[self.parsePart(key)] = false;
break;
case 'NULL':
object[self.parsePart(key)] = null;
break;
default:
object[self.parsePart(key)] = self.parsePart(innerValue || value);
break;
}
});
return object;
}
};