Add optional delim argument

This is useful for parsing/stringifying cookie values.

lib/parse.js

@@ -6,16 +6,21 @@ var Utils = require('./utils');
 // Declare internals
 
 var internals = {
+    delim: '&',
     depth: 5,
     arrayLimit: 20,
     parametersLimit: 1000
 };
 
 
-internals.parseValues = function (str) {
+internals.parseValues = function (str, delim) {
+
+    if (typeof delim === 'undefined') {
+        delim = internals.delim;
+    }
 
     var obj = {};
-    var parts = str.split('&').slice(0, internals.parametersLimit);
+    var parts = str.split(delim, internals.parametersLimit);
 
     for (var i = 0, il = parts.length; i < il; ++i) {
         var part = parts[i];
@@ -124,7 +129,7 @@ internals.parseKeys = function (key, val, depth) {
 };
 
 
-module.exports = function (str, depth) {
+module.exports = function (str, depth, delim) {
 
     if (str === '' ||
         str === null ||
@@ -133,7 +138,12 @@ module.exports = function (str, depth) {
         return {};
     }
 
-    var tempObj = typeof str === 'string' ? internals.parseValues(str) : Utils.clone(str);
+    if (typeof depth !== 'number') {
+        delim = depth;
+        depth = internals.depth;
+    }
+
+    var tempObj = typeof str === 'string' ? internals.parseValues(str, delim) : Utils.clone(str);
     var obj = {};
 
     // Iterate over the keys and setup the new object

lib/stringify.js

@@ -3,7 +3,9 @@
 
 // Declare internals
 
-var internals = {};
+var internals = {
+    delim: '&'
+};
 
 
 internals.stringify = function (obj, prefix) {
@@ -37,7 +39,11 @@ internals.stringify = function (obj, prefix) {
 };
 
 
-module.exports = function (obj) {
+module.exports = function (obj, delim) {
+
+    if (typeof delim === 'undefined') {
+        delim = internals.delim;
+    }
 
     var keys = [];
 
@@ -47,5 +53,5 @@ module.exports = function (obj) {
         }
     }
 
-    return keys.join('&');
+    return keys.join(delim);
 };

test/parse.js

@@ -240,4 +240,10 @@ describe('#parse', function () {
         delete Object.prototype.crash;
         done();
     });
+
+    it('parses a string with an alternative delimiter', function (done) {
+
+        expect(Qs.parse('a=b;c=d', ';')).to.deep.equal({ a: 'b', c: 'd' });
+        done();
+    });
 });

test/stringify.js

@@ -120,4 +120,10 @@ describe('#stringify', function () {
         expect(Qs.stringify({ a: { b: new Buffer('test') } })).to.equal('a%5Bb%5D=test');
         done();
     });
+
+    it('stringifies an object using an alternative delimiter', function (done) {
+
+        expect(Qs.stringify({ a: 'b', c: 'd' }, ';')).to.equal('a=b;c=d');
+        done();
+    });
 });