third_party/WebKit/Source/core/xml/parser/XMLParserInput.h

   1 /*
   2  * Copyright (C) 2013 Google Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  *     * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *     * Redistributions in binary form must reproduce the above
  11  * copyright notice, this list of conditions and the following disclaimer
  12  * in the documentation and/or other materials provided with the
  13  * distribution.
  14  *     * Neither the name of Google Inc. nor the names of its
  15  * contributors may be used to endorse or promote products derived from
  16  * this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #ifndef XMLParserInput_h
  32 #define XMLParserInput_h
  33
  34 #include "wtf/text/WTFString.h"
  35
  36 namespace blink {
  37
  38 class XMLParserInput {
  39 public:
  40     explicit XMLParserInput(const String& source)
  41         : m_source(source)
  42         , m_encoding(0)
  43         , m_data(0)
  44         , m_size(0)
  45     {
  46         if (m_source.isEmpty())
  47             return;
  48
  49         const UChar BOM = 0xFEFF;
  50         const unsigned char BOMHighByte = *reinterpret_cast<const unsigned char*>(&BOM);
  51
  52         if (m_source.is8Bit()) {
  53             m_encoding = "iso-8859-1";
  54             m_data = reinterpret_cast<const char*>(m_source.characters8());
  55             m_size = m_source.length() * sizeof(LChar);
  56         } else {
  57             m_encoding = BOMHighByte == 0xFF ? "UTF-16LE" : "UTF-16BE";
  58             m_data = reinterpret_cast<const char*>(m_source.characters16());
  59             m_size = m_source.length() * sizeof(UChar);
  60         }
  61     }
  62
  63     const char* encoding() const { return m_encoding; }
  64     const char* data() const { return m_data; }
  65     int size() const { return m_size; }
  66
  67 private:
  68     String m_source;
  69     const char* m_encoding;
  70     const char* m_data;
  71     int m_size;
  72 };
  73
  74 }
  75
  76 #endif