Adds a modified copy of talk/base to webrtc/base. It is the first step in migrating talk/base to webrtc/base.

BUG=N/A
R=andrew@webrtc.org, wu@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/12199004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6107 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/base/urlencode.h

@@ -0,0 +1,43 @@
+/*
+ *  Copyright 2008 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef _URLENCODE_H_
+#define _URLENCODE_H_ 
+
+#include <string>
+
+// Decode all encoded characters. Also decode + as space.
+int UrlDecode(const char *source, char *dest);
+
+// Decode all encoded characters.
+int UrlDecodeWithoutEncodingSpaceAsPlus(const char *source, char *dest);
+
+// Encode all characters except alphas, numbers, and -_.!~*'()
+// Also encode space as +.
+int UrlEncode(const char *source, char *dest, unsigned max);
+
+// Encode all characters except alphas, numbers, and -_.!~*'()
+int UrlEncodeWithoutEncodingSpaceAsPlus(const char *source, char *dest,
+                                        unsigned max);
+
+// Encode only unsafe chars, including \ "^&`<>[]{}
+// Also encode space as %20, instead of +
+int UrlEncodeOnlyUnsafeChars(const char *source, char *dest, unsigned max);
+
+std::string UrlDecodeString(const std::string & encoded);
+std::string UrlDecodeStringWithoutEncodingSpaceAsPlus(
+    const std::string & encoded);
+std::string UrlEncodeString(const std::string & decoded);
+std::string UrlEncodeStringWithoutEncodingSpaceAsPlus(
+    const std::string & decoded);
+std::string UrlEncodeStringForOnlyUnsafeChars(const std::string & decoded);
+
+#endif
+