139 lines
5.7 KiB
C
139 lines
5.7 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include "unichars.h"
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#include "osl/diagnose.h"
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#include "sal/types.h"
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int ImplIsNoncharacter(sal_uInt32 nUtf32)
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{
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/* All code points that are noncharacters, as of Unicode 3.1.1. */
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return (nUtf32 >= 0xFDD0 && nUtf32 <= 0xFDEF)
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|| (nUtf32 & 0xFFFF) >= 0xFFFE
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|| nUtf32 > 0x10FFFF;
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}
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int ImplIsControlOrFormat(sal_uInt32 nUtf32)
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{
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/* All code points of <http://www.unicode.org/Public/UNIDATA/
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UnicodeData.txt>, Version 3.1.1, that have a General Category of Cc
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(Other, Control) or Cf (Other, Format).
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*/
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return nUtf32 <= 0x001F
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|| (nUtf32 >= 0x007F && nUtf32 <= 0x009F)
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|| nUtf32 == 0x070F /* SYRIAC ABBREVIATION MARK */
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|| nUtf32 == 0x180B /* MONGOLIAN FREE VARIATION SELECTOR ONE */
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|| nUtf32 == 0x180C /* MONGOLIAN FREE VARIATION SELECTOR TWO */
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|| nUtf32 == 0x180D /* MONGOLIAN FREE VARIATION SELECTOR THREE */
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|| nUtf32 == 0x180E /* MONGOLIAN VOWEL SEPARATOR */
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|| nUtf32 == 0x200C /* ZERO WIDTH NON-JOINER */
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|| nUtf32 == 0x200D /* ZERO WIDTH JOINER */
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|| nUtf32 == 0x200E /* LEFT-TO-RIGHT MARK */
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|| nUtf32 == 0x200F /* RIGHT-TO-LEFT MARK */
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|| nUtf32 == 0x202A /* LEFT-TO-RIGHT EMBEDDING */
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|| nUtf32 == 0x202B /* RIGHT-TO-LEFT EMBEDDING */
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|| nUtf32 == 0x202C /* POP DIRECTIONAL FORMATTING */
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|| nUtf32 == 0x202D /* LEFT-TO-RIGHT OVERRIDE */
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|| nUtf32 == 0x202E /* RIGHT-TO-LEFT OVERRIDE */
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|| nUtf32 == 0x206A /* INHIBIT SYMMETRIC SWAPPING */
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|| nUtf32 == 0x206B /* ACTIVATE SYMMETRIC SWAPPING */
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|| nUtf32 == 0x206C /* INHIBIT ARABIC FORM SHAPING */
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|| nUtf32 == 0x206D /* ACTIVATE ARABIC FORM SHAPING */
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|| nUtf32 == 0x206E /* NATIONAL DIGIT SHAPES */
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|| nUtf32 == 0x206F /* NOMINAL DIGIT SHAPES */
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|| nUtf32 == 0xFEFF /* ZERO WIDTH NO-BREAK SPACE */
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|| nUtf32 == 0xFFF9 /* INTERLINEAR ANNOTATION ANCHOR */
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|| nUtf32 == 0xFFFA /* INTERLINEAR ANNOTATION SEPARATOR */
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|| nUtf32 == 0xFFFB /* INTERLINEAR ANNOTATION TERMINATOR */
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|| nUtf32 == 0x1D173 /* MUSICAL SYMBOL BEGIN BEAM */
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|| nUtf32 == 0x1D174 /* MUSICAL SYMBOL END BEAM */
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|| nUtf32 == 0x1D175 /* MUSICAL SYMBOL BEGIN TIE */
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|| nUtf32 == 0x1D176 /* MUSICAL SYMBOL END TIE */
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|| nUtf32 == 0x1D177 /* MUSICAL SYMBOL BEGIN SLUR */
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|| nUtf32 == 0x1D178 /* MUSICAL SYMBOL END SLUR */
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|| nUtf32 == 0x1D179 /* MUSICAL SYMBOL BEGIN PHRASE */
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|| nUtf32 == 0x1D17A /* MUSICAL SYMBOL END PHRASE */
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|| nUtf32 == 0xE0001 /* LANGUAGE TAG */
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|| (nUtf32 >= 0xE0020 && nUtf32 <= 0xE007F);
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}
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int ImplIsHighSurrogate(sal_uInt32 nUtf32)
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{
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/* All code points that are high-surrogates, as of Unicode 3.1.1. */
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return nUtf32 >= 0xD800 && nUtf32 <= 0xDBFF;
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}
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int ImplIsLowSurrogate(sal_uInt32 nUtf32)
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{
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/* All code points that are low-surrogates, as of Unicode 3.1.1. */
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return nUtf32 >= 0xDC00 && nUtf32 <= 0xDFFF;
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}
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int ImplIsPrivateUse(sal_uInt32 nUtf32)
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{
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/* All code points of <http://www.unicode.org/Public/UNIDATA/
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UnicodeData.txt>, Version 3.1.1, that have a General Category of Co
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(Other, Private Use).
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*/
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return (nUtf32 >= 0xE000 && nUtf32 <= 0xF8FF)
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|| (nUtf32 >= 0xF0000 && nUtf32 <= 0xFFFFD)
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|| (nUtf32 >= 0x100000 && nUtf32 <= 0x10FFFD);
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}
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int ImplIsZeroWidth(sal_uInt32 nUtf32)
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{
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/* All code points of <http://www.unicode.org/Public/UNIDATA/
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UnicodeData.txt>, Version 3.1.1, that have "ZERO WIDTH" in their
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Character name.
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*/
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return nUtf32 == 0x200B /* ZERO WIDTH SPACE */
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|| nUtf32 == 0x200C /* ZERO WIDTH NON-JOINER */
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|| nUtf32 == 0x200D /* ZERO WIDTH JOINER */
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|| nUtf32 == 0xFEFF; /* ZEOR WIDTH NO-BREAK SPACE */
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}
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sal_uInt32 ImplGetHighSurrogate(sal_uInt32 nUtf32)
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{
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OSL_ENSURE(nUtf32 >= 0x10000, "specification violation");
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return ((nUtf32 - 0x10000) >> 10) | 0xD800;
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}
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sal_uInt32 ImplGetLowSurrogate(sal_uInt32 nUtf32)
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{
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OSL_ENSURE(nUtf32 >= 0x10000, "specification violation");
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return ((nUtf32 - 0x10000) & 0x3FF) | 0xDC00;
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}
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sal_uInt32 ImplCombineSurrogates(sal_uInt32 nHigh, sal_uInt32 nLow)
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{
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OSL_ENSURE(ImplIsHighSurrogate(nHigh) && ImplIsLowSurrogate(nLow),
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"specification violation");
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return (((nHigh & 0x3FF) << 10) | (nLow & 0x3FF)) + 0x10000;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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