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index.js
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index.js
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/**
* Module dependencies.
*/
var encode = encodeURIComponent;
var decode = decodeURIComponent;
var type = require('component-type');
/**
* Parse the given query `str`.
*
* @param {String} str
* @return {Object}
* @api public
*/
exports.parse = function(str){
if ('string' != typeof str) return {};
str = str.trim();
if ('' == str) return {};
if ('?' == str.charAt(0)) str = str.slice(1);
var obj = {};
var pairs = str.split('&');
for (var i = 0; i < pairs.length; i++) {
var parts = pairs[i].split('=');
var key = decode(parts[0]);
var m;
if (m = /(\w+)\[(\d+)\]/.exec(key)) {
obj[m[1]] = obj[m[1]] || [];
obj[m[1]][m[2]] = decode(parts[1]);
continue;
}
obj[parts[0]] = null == parts[1]
? ''
: decode(parts[1]);
}
return obj;
};
/**
* Stringify the given `obj`.
*
* @param {Object} obj
* @return {String}
* @api public
*/
exports.stringify = function(obj){
if (!obj) return '';
var pairs = [];
for (var key in obj) {
var value = obj[key];
if ('array' == type(value)) {
for (var i = 0; i < value.length; ++i) {
pairs.push(encode(key + '[' + i + ']') + '=' + encode(value[i]));
}
continue;
}
pairs.push(encode(key) + '=' + encode(obj[key]));
}
return pairs.join('&');
};