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1 /* | 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
2 * Copyright (C) 2007 Apple Inc. All rights reserved. | 2 // Use of this source code is governed by a BSD-style license that can be |
3 * | 3 // found in the LICENSE file. |
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 | 4 |
26 #ifndef WTF_UTF8_h | 5 #include "platform/wtf/text/UTF8.h" |
27 #define WTF_UTF8_h | |
28 | 6 |
29 #include "wtf/WTFExport.h" | 7 // The contents of this header was moved to platform/wtf as part of |
30 #include "wtf/text/Unicode.h" | 8 // WTF migration project. See the following post for details: |
31 | 9 // https://groups.google.com/a/chromium.org/d/msg/blink-dev/tLdAZCTlcAA/bYXVT8gY
CAAJ |
32 namespace WTF { | |
33 namespace Unicode { | |
34 | |
35 typedef enum { | |
36 conversionOK, // conversion successful | |
37 sourceExhausted, // partial character in source, but hit end | |
38 targetExhausted, // insuff. room in target for conversion | |
39 sourceIllegal // source sequence is illegal/malformed | |
40 } ConversionResult; | |
41 | |
42 // These conversion functions take a "strict" argument. When this flag is set to | |
43 // strict, both irregular sequences and isolated surrogates will cause an error. | |
44 // When the flag is set to lenient, both irregular sequences and isolated | |
45 // surrogates are converted. | |
46 // | |
47 // Whether the flag is strict or lenient, all illegal sequences will cause an | |
48 // error return. This includes sequences such as: <F4 90 80 80>, <C0 80>, or | |
49 // <A0> in UTF-8, and values above 0x10FFFF in UTF-32. Conformant code must | |
50 // check for illegal sequences. | |
51 // | |
52 // When the flag is set to lenient, characters over 0x10FFFF are converted to | |
53 // the replacement character; otherwise (when the flag is set to strict) they | |
54 // constitute an error. | |
55 | |
56 WTF_EXPORT ConversionResult convertUTF8ToUTF16(const char** sourceStart, | |
57 const char* sourceEnd, | |
58 UChar** targetStart, | |
59 UChar* targetEnd, | |
60 bool* isSourceAllASCII = 0, | |
61 bool strict = true); | |
62 | |
63 WTF_EXPORT ConversionResult convertLatin1ToUTF8(const LChar** sourceStart, | |
64 const LChar* sourceEnd, | |
65 char** targetStart, | |
66 char* targetEnd); | |
67 | |
68 WTF_EXPORT ConversionResult convertUTF16ToUTF8(const UChar** sourceStart, | |
69 const UChar* sourceEnd, | |
70 char** targetStart, | |
71 char* targetEnd, | |
72 bool strict = true); | |
73 | |
74 WTF_EXPORT unsigned calculateStringHashAndLengthFromUTF8MaskingTop8Bits( | |
75 const char* data, | |
76 const char* dataEnd, | |
77 unsigned& dataLength, | |
78 unsigned& utf16Length); | |
79 | |
80 WTF_EXPORT bool equalUTF16WithUTF8(const UChar* a, | |
81 const UChar* aEnd, | |
82 const char* b, | |
83 const char* bEnd); | |
84 WTF_EXPORT bool equalLatin1WithUTF8(const LChar* a, | |
85 const LChar* aEnd, | |
86 const char* b, | |
87 const char* bEnd); | |
88 | |
89 } // namespace Unicode | |
90 } // namespace WTF | |
91 | |
92 #endif // WTF_UTF8_h | |
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