third_party/WebKit/Source/wtf/text/TextCodec.cpp

   1 /*
   2  * Copyright (C) 2004, 2006 Apple Computer, Inc.  All rights reserved.
   3  * Copyright (C) 2006 Alexey Proskuryakov <ap@nypop.com>
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #include "config.h"
  28 #include "wtf/text/TextCodec.h"
  29
  30 #include "wtf/StringExtras.h"
  31
  32 namespace WTF {
  33
  34 TextCodec::~TextCodec()
  35 {
  36 }
  37
  38 int TextCodec::getUnencodableReplacement(unsigned codePoint, UnencodableHandling handling, UnencodableReplacementArray replacement)
  39 {
  40     switch (handling) {
  41         case QuestionMarksForUnencodables:
  42             replacement[0] = '?';
  43             replacement[1] = 0;
  44             return 1;
  45         case EntitiesForUnencodables:
  46             snprintf(replacement, sizeof(UnencodableReplacementArray), "&#%u;", codePoint);
  47             return static_cast<int>(strlen(replacement));
  48         case URLEncodedEntitiesForUnencodables:
  49             snprintf(replacement, sizeof(UnencodableReplacementArray), "%%26%%23%u%%3B", codePoint);
  50             return static_cast<int>(strlen(replacement));
  51     }
  52     ASSERT_NOT_REACHED();
  53     replacement[0] = 0;
  54     return 0;
  55 }
  56
  57 } // namespace WTF