2e6e40b745
Still need to fix call sites to handles surrogate pairs. Change-Id: I3ba896714fc6a90596c041148a3c9d965f60f4a1 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/154874 Tested-by: Jenkins Reviewed-by: خالد حسني <khaled@libreoffice.org>
128 lines
4.8 KiB
C++
128 lines
4.8 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/uchar.h>
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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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{
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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_uInt32 ch);
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static sal_Int16 getUnicodeScriptType(const sal_Unicode ch, const ScriptTypeList* typeList,
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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 sal_uInt32 GetMirroredChar(sal_uInt32);
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static bool isControl(const sal_uInt32 ch);
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static bool isAlpha(const sal_uInt32 ch);
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static bool isSpace(const sal_uInt32 ch);
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static bool isWhiteSpace(const sal_uInt32 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 isVariationSelector(sal_uInt32 nCode)
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{
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return u_getIntPropertyValue(nCode, UCHAR_VARIATION_SELECTOR) != 0;
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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, const LanguageTag& rLangTag);
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/** Map a LanguageTag's language ISO 639 code or script ISO 15924 code or
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language-script or locale to Latin/Asian/Complex/Weak. If more than one
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script is used with a language(-country) tag then the first (default)
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script is mapped for that language.
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@return a css::i18n::ScriptType value.
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*/
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static sal_Int16 getScriptClassFromLanguageTag(const LanguageTag& rLanguageTag);
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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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