1 /*
2  * Copyright (C) 2006, 2007 Apple 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
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #ifndef TextEncodingRegistry_h
27 #define TextEncodingRegistry_h
28 
29 #include <memory>
30 #include <wtf/PassOwnPtr.h>
31 #include <wtf/unicode/Unicode.h>
32 
33 namespace WebCore {
34 
35     class TextCodec;
36     class TextEncoding;
37 
38     // Use TextResourceDecoder::decode to decode resources, since it handles BOMs.
39     // Use TextEncoding::encode to encode, since it takes care of normalization.
40     PassOwnPtr<TextCodec> newTextCodec(const TextEncoding&);
41 
42     // Only TextEncoding should use the following functions directly.
43     const char* atomicCanonicalTextEncodingName(const char* alias);
44     const char* atomicCanonicalTextEncodingName(const UChar* aliasCharacters, size_t aliasLength);
45     bool noExtendedTextEncodingNameUsed();
46     bool isJapaneseEncoding(const char* canonicalEncodingName);
47     bool shouldShowBackslashAsCurrencySymbolIn(const char* canonicalEncodingName);
48 
49 #ifndef NDEBUG
50     void dumpTextEncodingNameMap();
51 #endif
52 }
53 
54 #endif // TextEncodingRegistry_h
55