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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 WebCore {
37 
38 class XMLParserInput {
39 public:
XMLParserInput(const String & source)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 
encoding()63     const char* encoding() const { return m_encoding; }
data()64     const char* data() const { return m_data; }
size()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
77