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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: unichars.c,v $
* $Revision: 1.4 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include "unichars.h"
#include "osl/diagnose.h"
#include "sal/types.h"
int ImplIsNoncharacter(sal_uInt32 nUtf32)
{
/* All code points that are noncharacters, as of Unicode 3.1.1. */
return (nUtf32 >= 0xFDD0 && nUtf32 <= 0xFDEF)
|| (nUtf32 & 0xFFFF) >= 0xFFFE
|| nUtf32 > 0x10FFFF;
}
int ImplIsControlOrFormat(sal_uInt32 nUtf32)
{
/* All code points of <http://www.unicode.org/Public/UNIDATA/
UnicodeData.txt>, Version 3.1.1, that have a General Category of Cc
(Other, Control) or Cf (Other, Format).
*/
return nUtf32 <= 0x001F
|| (nUtf32 >= 0x007F && nUtf32 <= 0x009F)
|| nUtf32 == 0x070F /* SYRIAC ABBREVIATION MARK */
|| nUtf32 == 0x180B /* MONGOLIAN FREE VARIATION SELECTOR ONE */
|| nUtf32 == 0x180C /* MONGOLIAN FREE VARIATION SELECTOR TWO */
|| nUtf32 == 0x180D /* MONGOLIAN FREE VARIATION SELECTOR THREE */
|| nUtf32 == 0x180E /* MONGOLIAN VOWEL SEPARATOR */
|| nUtf32 == 0x200C /* ZERO WIDTH NON-JOINER */
|| nUtf32 == 0x200D /* ZERO WIDTH JOINER */
|| nUtf32 == 0x200E /* LEFT-TO-RIGHT MARK */
|| nUtf32 == 0x200F /* RIGHT-TO-LEFT MARK */
|| nUtf32 == 0x202A /* LEFT-TO-RIGHT EMBEDDING */
|| nUtf32 == 0x202B /* RIGHT-TO-LEFT EMBEDDING */
|| nUtf32 == 0x202C /* POP DIRECTIONAL FORMATTING */
|| nUtf32 == 0x202D /* LEFT-TO-RIGHT OVERRIDE */
|| nUtf32 == 0x202E /* RIGHT-TO-LEFT OVERRIDE */
|| nUtf32 == 0x206A /* INHIBIT SYMMETRIC SWAPPING */
|| nUtf32 == 0x206B /* ACTIVATE SYMMETRIC SWAPPING */
|| nUtf32 == 0x206C /* INHIBIT ARABIC FORM SHAPING */
|| nUtf32 == 0x206D /* ACTIVATE ARABIC FORM SHAPING */
|| nUtf32 == 0x206E /* NATIONAL DIGIT SHAPES */
|| nUtf32 == 0x206F /* NOMINAL DIGIT SHAPES */
|| nUtf32 == 0xFEFF /* ZERO WIDTH NO-BREAK SPACE */
|| nUtf32 == 0xFFF9 /* INTERLINEAR ANNOTATION ANCHOR */
|| nUtf32 == 0xFFFA /* INTERLINEAR ANNOTATION SEPARATOR */
|| nUtf32 == 0xFFFB /* INTERLINEAR ANNOTATION TERMINATOR */
|| nUtf32 == 0x1D173 /* MUSICAL SYMBOL BEGIN BEAM */
|| nUtf32 == 0x1D174 /* MUSICAL SYMBOL END BEAM */
|| nUtf32 == 0x1D175 /* MUSICAL SYMBOL BEGIN TIE */
|| nUtf32 == 0x1D176 /* MUSICAL SYMBOL END TIE */
|| nUtf32 == 0x1D177 /* MUSICAL SYMBOL BEGIN SLUR */
|| nUtf32 == 0x1D178 /* MUSICAL SYMBOL END SLUR */
|| nUtf32 == 0x1D179 /* MUSICAL SYMBOL BEGIN PHRASE */
|| nUtf32 == 0x1D17A /* MUSICAL SYMBOL END PHRASE */
|| nUtf32 == 0xE0001 /* LANGUAGE TAG */
|| (nUtf32 >= 0xE0020 && nUtf32 <= 0xE007F);
}
int ImplIsHighSurrogate(sal_uInt32 nUtf32)
{
/* All code points that are high-surrogates, as of Unicode 3.1.1. */
return nUtf32 >= 0xD800 && nUtf32 <= 0xDBFF;
}
int ImplIsLowSurrogate(sal_uInt32 nUtf32)
{
/* All code points that are low-surrogates, as of Unicode 3.1.1. */
return nUtf32 >= 0xDC00 && nUtf32 <= 0xDFFF;
}
int ImplIsPrivateUse(sal_uInt32 nUtf32)
{
/* All code points of <http://www.unicode.org/Public/UNIDATA/
UnicodeData.txt>, Version 3.1.1, that have a General Category of Co
(Other, Private Use).
*/
return (nUtf32 >= 0xE000 && nUtf32 <= 0xF8FF)
|| (nUtf32 >= 0xF0000 && nUtf32 <= 0xFFFFD)
|| (nUtf32 >= 0x100000 && nUtf32 <= 0x10FFFD);
}
int ImplIsZeroWidth(sal_uInt32 nUtf32)
{
/* All code points of <http://www.unicode.org/Public/UNIDATA/
UnicodeData.txt>, Version 3.1.1, that have "ZERO WIDTH" in their
Character name.
*/
return nUtf32 == 0x200B /* ZERO WIDTH SPACE */
|| nUtf32 == 0x200C /* ZERO WIDTH NON-JOINER */
|| nUtf32 == 0x200D /* ZERO WIDTH JOINER */
|| nUtf32 == 0xFEFF; /* ZEOR WIDTH NO-BREAK SPACE */
}
sal_uInt32 ImplGetHighSurrogate(sal_uInt32 nUtf32)
{
OSL_ENSURE(nUtf32 >= 0x10000, "specification violation");
return ((nUtf32 - 0x10000) >> 10) | 0xD800;
}
sal_uInt32 ImplGetLowSurrogate(sal_uInt32 nUtf32)
{
OSL_ENSURE(nUtf32 >= 0x10000, "specification violation");
return ((nUtf32 - 0x10000) & 0x3FF) | 0xDC00;
}
sal_uInt32 ImplCombineSurrogates(sal_uInt32 nHigh, sal_uInt32 nLow)
{
OSL_ENSURE(ImplIsHighSurrogate(nHigh) && ImplIsLowSurrogate(nLow),
"specification violation");
return (((nHigh & 0x3FF) << 10) | (nLow & 0x3FF)) + 0x10000;
}
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