Install the "express" node module via npm

[obsolete/notmuch-web] / node_modules / express / node_modules / qs / lib / querystring.js

diff --git a/node_modules/express/node_modules/qs/lib/querystring.js b/node_modules/express/node_modules/qs/lib/querystring.js
new file mode 100644 (file)
index 0000000..5fb3441
--- /dev/null
+++ b/node_modules/express/node_modules/qs/lib/querystring.js
@@ -0,0 +1,123 @@
+
+/*!
+ * querystring
+ * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
+ * MIT Licensed
+ */
+
+/**
+ * Library version.
+ */
+
+exports.version = '0.1.0';
+
+/**
+ * Parse the given query `str`, returning an object.
+ *
+ * @param {String} str
+ * @return {Object}
+ * @api public
+ */
+
+exports.parse = function(str) {
+  if (str == undefined || str == '') return {};
+
+  return String(str)
+    .split('&')
+    .reduce(function(ret, pair){
+      var pair = decodeURIComponent(pair.replace(/\+/g, ' '))
+        , eql = pair.indexOf('=')
+        , brace = lastBraceInKey(pair)
+        , key = pair.substr(0, brace || eql)
+        , val = pair.substr(brace || eql, pair.length)
+        , val = val.substr(val.indexOf('=') + 1, val.length)
+        , obj = ret;
+
+      // ?foo
+      if ('' == key) key = pair, val = '';
+
+      // nested
+      if (~key.indexOf(']')) {
+        var parts = key.split('[')
+          , len = parts.length
+          , last = len - 1;
+
+        function parse(obj, parts, parent, key) {
+          var part = parts.shift();
+
+          // end
+          if (!part) {
+            if (Array.isArray(parent[key])) {
+              parent[key].push(val);
+            } else if ('object' == typeof parent[key]) {
+              parent[key] = val;
+            } else {
+              parent[key] = [parent[key], val];
+            }
+          // array
+          } else if (']' == part) {
+            obj = parent[key] = Array.isArray(parent[key])
+              ? parent[key]
+              : [];
+            if ('' != val) obj.push(val);
+          // prop
+          } else if (~part.indexOf(']')) {
+            part = part.substr(0, part.length - 1);
+            parse(obj[part] = obj[part] || {}, parts, obj, part);
+          // key
+          } else {
+            parse(obj[part] = obj[part] || {}, parts, obj, part);
+          }
+        }
+
+        parse(obj, parts);
+      // optimize
+      } else {
+        set(obj, key, val);
+      }
+
+      return ret;
+    }, {});
+};
+
+/**
+ * Set `obj`'s `key` to `val` respecting
+ * the weird and wonderful syntax of a qs,
+ * where "foo=bar&foo=baz" becomes an array.
+ *
+ * @param {Object} obj
+ * @param {String} key
+ * @param {String} val
+ * @api private
+ */
+
+function set(obj, key, val) {
+  var v = obj[key];
+  if (undefined === v) {
+    obj[key] = val;
+  } else if (Array.isArray(v)) {
+    v.push(val);
+  } else {
+    obj[key] = [v, val];
+  }
+}
+
+/**
+ * Locate last brace in `str` within the key.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+function lastBraceInKey(str) {
+  var len = str.length
+    , brace
+    , c;
+  for (var i = 0; i < len; ++i) {
+    c = str[i];
+    if (']' == c) brace = false;
+    if ('[' == c) brace = true;
+    if ('=' == c && !brace) return i;
+  }
+}