LibreOffice Module i18nutil (master) 1
unicode.hxx
Go to the documentation of this file.
1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19#ifndef INCLUDED_I18NUTIL_UNICODE_HXX
20#define INCLUDED_I18NUTIL_UNICODE_HXX
21
22#include <com/sun/star/i18n/UnicodeScript.hpp>
23#include <sal/types.h>
24#include <rtl/ustrbuf.hxx>
25#include <unicode/uscript.h>
27
28class LanguageTag;
29
31{
32 css::i18n::UnicodeScript from;
33 css::i18n::UnicodeScript to;
34 sal_Int16 value;
35};
36
38{
39public:
40 static sal_Int16 getUnicodeType(const sal_Unicode ch);
41 static sal_Int16 getUnicodeScriptType(const sal_Unicode ch, const ScriptTypeList* typeList,
42 sal_Int16 unknownType = 0);
43 static sal_Unicode getUnicodeScriptStart(css::i18n::UnicodeScript type);
44 static sal_Unicode getUnicodeScriptEnd(css::i18n::UnicodeScript type);
45 static sal_uInt8 getUnicodeDirection(const sal_Unicode ch);
46 static bool isControl(const sal_Unicode ch);
47 static bool isAlpha(const sal_Unicode ch);
48 static bool isSpace(const sal_Unicode ch);
49 static bool isWhiteSpace(const sal_Unicode ch);
50
57 static bool isIVSSelector(sal_uInt32 nCode)
58 {
59 return (nCode >= 0xFE00 && nCode <= 0xFE0F) // Variation Selectors block
60 || (nCode >= 0xE0100 && nCode <= 0xE01EF); // Variation Selectors Supplement block
61 }
62
69 static bool isCJKIVSCharacter(sal_uInt32 nCode)
70 {
71 return (nCode >= 0x4E00 && nCode <= 0x9FFF) // CJK Unified Ideographs
72 || (nCode >= 0x3400 && nCode <= 0x4DBF) // CJK Unified Ideographs Extension A
73 || (nCode >= 0x20000 && nCode <= 0x2A6DF); // CJK Unified Ideographs Extension B
74 }
75
76 //Map an ISO 15924 script code to Latin/Asian/Complex/Weak
77 static sal_Int16 getScriptClassFromUScriptCode(UScriptCode eScript);
78
79 //Return a language that can be written in a given ISO 15924 script code
80 static OString getExemplarLanguageForUScriptCode(UScriptCode eScript);
81
82 //Format a number as a percentage according to the rules of the given
83 //language, e.g. 100 -> "100%" for en-US vs "100 %" for de-DE
84 static OUString formatPercent(double dNumber, const LanguageTag& rLangTag);
85};
86
87/*
88 Toggle between a character and its Unicode Notation.
89 -implements the concept found in Microsoft Word's Alt-X
90 -accepts sequences of up to 8 hex characters and converts into the corresponding Unicode Character
91 -example: 0000A78c or 2bc
92 -accepts sequences of up to 256 characters in Unicode notation
93 -example: U+00000065u+0331u+308
94 -handles complex characters (with combining elements) and the all of the Unicode planes.
95*/
97{
98private:
99 OUStringBuffer maInput;
100 OUStringBuffer maUtf16;
101 OUStringBuffer maCombining;
102 bool mbAllowMoreChars = true;
103 bool mbRequiresU = false;
104 bool mbIsHexString = false;
105
106public:
112 bool AllowMoreInput(sal_Unicode uChar);
113
119 OUString StringToReplace();
120 OUString ReplacementString();
121
126 sal_uInt32 CharsToDelete();
127};
128
129#endif
130
131/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
OUStringBuffer maInput
Definition: unicode.hxx:99
OUStringBuffer maUtf16
Definition: unicode.hxx:100
OUStringBuffer maCombining
Definition: unicode.hxx:101
static bool isAlpha(const sal_Unicode ch)
static bool isSpace(const sal_Unicode ch)
static bool isIVSSelector(sal_uInt32 nCode)
Check for Unicode variation sequence selectors.
Definition: unicode.hxx:57
static bool isWhiteSpace(const sal_Unicode ch)
static bool isControl(const sal_Unicode ch)
static bool isCJKIVSCharacter(sal_uInt32 nCode)
Check for base characters of a CJK ideographic variation sequence (IVS)
Definition: unicode.hxx:69
#define I18NUTIL_DLLPUBLIC
sal_uInt16 nCode
ScriptTypeList const typeList[]
css::i18n::UnicodeScript to
Definition: unicode.hxx:33
css::i18n::UnicodeScript from
Definition: unicode.hxx:32
sal_Int16 value
Definition: unicode.hxx:34
unsigned char sal_uInt8
sal_uInt16 sal_Unicode
ResultType type