1/*
2 * Copyright (C) 2008 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 *
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 * 3. Neither the name of Apple Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#pragma once
30
31#include <unicode/uconfig.h>
32#include <wtf/Noncopyable.h>
33
34struct UCharIterator;
35struct UCollator;
36
37namespace WTF {
38
39class StringView;
40
41#if UCONFIG_NO_COLLATION
42
43class Collator {
44public:
45 explicit Collator(const char* = nullptr, bool = false) { }
46
47 WTF_EXPORT_PRIVATE static int collate(StringView, StringView);
48 WTF_EXPORT_PRIVATE static int collateUTF8(const char*, const char*);
49};
50
51#else
52
53class Collator {
54 WTF_MAKE_NONCOPYABLE(Collator);
55public:
56 // The value nullptr is a special one meaning the system default locale.
57 // Locale name parsing is lenient; e.g. language identifiers (such as "en-US") are accepted, too.
58 WTF_EXPORT_PRIVATE explicit Collator(const char* locale = nullptr, bool shouldSortLowercaseFirst = false);
59 WTF_EXPORT_PRIVATE ~Collator();
60
61 WTF_EXPORT_PRIVATE int collate(StringView, StringView) const;
62 WTF_EXPORT_PRIVATE int collateUTF8(const char*, const char*) const;
63
64private:
65 char* m_locale;
66 bool m_shouldSortLowercaseFirst;
67 UCollator* m_collator;
68};
69
70WTF_EXPORT_PRIVATE UCharIterator createIterator(StringView);
71
72#endif
73
74}
75
76using WTF::Collator;
77