use smaller browser dependencies.

browser/querystring.js

@@ -0,0 +1,147 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// Query String Utilities
+
+var QueryString = exports;
+var isString = require('../lib/util').isString;
+var isArray = require('../lib/util').isArray;
+var isBoolean = require('../lib/util').isBoolean;
+var isNumber = require('../lib/util').isNumber;
+var isObject = require('../lib/util').isObject;
+var isNull = require('../lib/util').isNull;
+var keys = require('../lib/util').keys;
+var map = require('../lib/util').map;
+
+// If obj.hasOwnProperty has been overridden, then calling
+// obj.hasOwnProperty(prop) will break.
+// See: https://github.com/joyent/node/issues/1707
+function hasOwnProperty(obj, prop) {
+  return Object.prototype.hasOwnProperty.call(obj, prop);
+}
+
+
+function charCode(c) {
+  return c.charCodeAt(0);
+}
+
+QueryString.unescape = function(s) {
+  return decodeURIComponent(s);
+};
+
+
+QueryString.escape = function(str) {
+  return encodeURIComponent(str);
+};
+
+var stringifyPrimitive = function(v) {
+  if (isString(v))
+    return v;
+  if (isBoolean(v))
+    return v ? 'true' : 'false';
+  if (isNumber(v))
+    return isFinite(v) ? v : '';
+  return '';
+};
+
+
+QueryString.stringify = QueryString.encode = function(obj, sep, eq, name) {
+  sep = sep || '&';
+  eq = eq || '=';
+  if (isNull(obj)) {
+    obj = undefined;
+  }
+
+  if (isObject(obj)) {
+    return map(keys(obj), function(k) {
+      var ks = QueryString.escape(stringifyPrimitive(k)) + eq;
+      if (isArray(obj[k])) {
+        return map(obj[k], function(v) {
+          return ks + QueryString.escape(stringifyPrimitive(v));
+        }).join(sep);
+      } else {
+        return ks + QueryString.escape(stringifyPrimitive(obj[k]));
+      }
+    }).join(sep);
+
+  }
+
+  if (!name) return '';
+  return QueryString.escape(stringifyPrimitive(name)) + eq +
+         QueryString.escape(stringifyPrimitive(obj));
+};
+
+// Parse a key=val string.
+QueryString.parse = QueryString.decode = function(qs, sep, eq, options) {
+  sep = sep || '&';
+  eq = eq || '=';
+  var obj = {};
+
+  if (!isString(qs) || qs.length === 0) {
+    return obj;
+  }
+
+  var regexp = /\+/g;
+  qs = qs.split(sep);
+
+  var maxKeys = 1000;
+  if (options && isNumber(options.maxKeys)) {
+    maxKeys = options.maxKeys;
+  }
+
+  var len = qs.length;
+  // maxKeys <= 0 means that we should not limit keys count
+  if (maxKeys > 0 && len > maxKeys) {
+    len = maxKeys;
+  }
+
+  for (var i = 0; i < len; ++i) {
+    var x = qs[i].replace(regexp, '%20'),
+        idx = x.indexOf(eq),
+        kstr, vstr, k, v;
+
+    if (idx >= 0) {
+      kstr = x.substr(0, idx);
+      vstr = x.substr(idx + 1);
+    } else {
+      kstr = x;
+      vstr = '';
+    }
+
+    try {
+      k = decodeURIComponent(kstr);
+      v = decodeURIComponent(vstr);
+    } catch (e) {
+      k = QueryString.unescape(kstr, true);
+      v = QueryString.unescape(vstr, true);
+    }
+
+    if (!hasOwnProperty(obj, k)) {
+      obj[k] = v;
+    } else if (isArray(obj[k])) {
+      obj[k].push(v);
+    } else {
+      obj[k] = [obj[k], v];
+    }
+  }
+
+  return obj;
+};