3fe1049ace
Change-Id: I1881e2c8cdccf9c020ed52d2e90689e6a02791b5 Reviewed-on: https://gerrit.libreoffice.org/75561 Tested-by: Jenkins Reviewed-by: Andrea Gelmini <andrea.gelmini@gelma.net>
132 lines
4.9 KiB
C++
132 lines
4.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_I18NUTIL_UNICODE_HXX
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#define INCLUDED_I18NUTIL_UNICODE_HXX
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#include <com/sun/star/i18n/UnicodeScript.hpp>
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#include <sal/types.h>
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#include <rtl/ustrbuf.hxx>
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#include <unicode/uscript.h>
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#include <i18nutil/i18nutildllapi.h>
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class LanguageTag;
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struct ScriptTypeList {
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css::i18n::UnicodeScript from;
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css::i18n::UnicodeScript to;
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sal_Int16 value;
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};
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class I18NUTIL_DLLPUBLIC unicode
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{
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public:
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static sal_Int16 getUnicodeType( const sal_Unicode ch );
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static sal_Int16 getUnicodeScriptType( const sal_Unicode ch, const ScriptTypeList *typeList, sal_Int16 unknownType = 0 );
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static sal_Unicode getUnicodeScriptStart(css::i18n::UnicodeScript type);
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static sal_Unicode getUnicodeScriptEnd(css::i18n::UnicodeScript type);
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static sal_uInt8 getUnicodeDirection( const sal_Unicode ch );
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static bool isControl( const sal_Unicode ch);
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static bool isAlpha( const sal_Unicode ch);
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static bool isSpace( const sal_Unicode ch);
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static bool isWhiteSpace( const sal_Unicode ch);
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/** Check for Unicode variation sequence selectors
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@param nCode A Unicode code point.
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@return True if code is a Unicode variation sequence selector.
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*/
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static bool isIVSSelector(sal_uInt32 nCode)
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{
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return (nCode >= 0xFE00 && nCode <= 0xFE0F) // Variation Selectors block
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|| (nCode >= 0xE0100 && nCode <= 0xE01EF);// Variation Selectors Supplement block
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}
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/** Check for base characters of a CJK ideographic variation sequence (IVS)
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@param nCode A Unicode code point.
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@return True if code is a Unicode base character part of CJK IVS
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*/
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static bool isCJKIVSCharacter(sal_uInt32 nCode)
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{
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return (nCode >= 0x4E00 && nCode <= 0x9FFF) // CJK Unified Ideographs
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|| (nCode >= 0x3400 && nCode <= 0x4DBF) // CJK Unified Ideographs Extension A
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|| (nCode >= 0x20000 && nCode <= 0x2A6DF); // CJK Unified Ideographs Extension B
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}
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//Map an ISO 15924 script code to Latin/Asian/Complex/Weak
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static sal_Int16 getScriptClassFromUScriptCode(UScriptCode eScript);
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//Return a language that can be written in a given ISO 15924 script code
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static OString getExemplarLanguageForUScriptCode(UScriptCode eScript);
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//Format a number as a percentage according to the rules of the given
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//language, e.g. 100 -> "100%" for en-US vs "100 %" for de-DE
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static OUString formatPercent(double dNumber,
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const LanguageTag &rLangTag);
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};
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/*
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Toggle between a character and its Unicode Notation.
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-implements the concept found in Microsoft Word's Alt-X
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-accepts sequences of up to 8 hex characters and converts into the corresponding Unicode Character
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-example: 0000A78c or 2bc
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-accepts sequences of up to 256 characters in Unicode notation
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-example: U+00000065u+0331u+308
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-handles complex characters (with combining elements) and the all of the Unicode planes.
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*/
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class I18NUTIL_DLLPUBLIC ToggleUnicodeCodepoint
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{
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private:
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OUStringBuffer maInput;
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OUStringBuffer maUtf16;
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OUStringBuffer maCombining;
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bool mbAllowMoreChars = true;
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bool mbRequiresU = false;
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bool mbIsHexString = false;
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public:
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/**
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Build an input string of valid UTF16 units to toggle.
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-do not call the other functions until the input process is complete
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-build string from Right to Left. (Start from the character to the left of the cursor: move left.)
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*/
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bool AllowMoreInput(sal_Unicode uChar);
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/**
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Validates (and potentially modifies) the input string.
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-all non-input functions must use this function to first to validate the input string
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-additional input may be prevented after this function is called
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*/
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OUString StringToReplace();
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OUString ReplacementString();
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/**
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While sInput.getLength() returns the number of utf16 units to delete,
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this function returns the number of "characters" to delete - potentially a smaller number
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*/
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sal_uInt32 CharsToDelete();
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};
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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