sal/textenc/unichars.cxx

   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
  20 #include <sal/config.h>
  21 #include <sal/types.h>
  22 #include "unichars.hxx"
  23
  24 bool ImplIsControlOrFormat(sal_uInt32 nUtf32)
  25 {
  26     // All code points of
  27     // <http://www.unicode.org/Public/UNIDATA/UnicodeData.txt>, Version 3.1.1,
  28     // that have a General Category of Cc (Other, Control) or Cf (Other,
  29     // Format):
  30     return nUtf32 <= 0x001F || (nUtf32 >= 0x007F && nUtf32 <= 0x009F)
  31            || nUtf32 == 0x070F // SYRIAC ABBREVIATION MARK
  32            || nUtf32 == 0x180B // MONGOLIAN FREE VARIATION SELECTOR ONE
  33            || nUtf32 == 0x180C // MONGOLIAN FREE VARIATION SELECTOR TWO
  34            || nUtf32 == 0x180D // MONGOLIAN FREE VARIATION SELECTOR THREE
  35            || nUtf32 == 0x180E // MONGOLIAN VOWEL SEPARATOR
  36            || nUtf32 == 0x200C // ZERO WIDTH NON-JOINER
  37            || nUtf32 == 0x200D // ZERO WIDTH JOINER
  38            || nUtf32 == 0x200E // LEFT-TO-RIGHT MARK
  39            || nUtf32 == 0x200F // RIGHT-TO-LEFT MARK
  40            || nUtf32 == 0x202A // LEFT-TO-RIGHT EMBEDDING
  41            || nUtf32 == 0x202B // RIGHT-TO-LEFT EMBEDDING
  42            || nUtf32 == 0x202C // POP DIRECTIONAL FORMATTING
  43            || nUtf32 == 0x202D // LEFT-TO-RIGHT OVERRIDE
  44            || nUtf32 == 0x202E // RIGHT-TO-LEFT OVERRIDE
  45            || nUtf32 == 0x206A // INHIBIT SYMMETRIC SWAPPING
  46            || nUtf32 == 0x206B // ACTIVATE SYMMETRIC SWAPPING
  47            || nUtf32 == 0x206C // INHIBIT ARABIC FORM SHAPING
  48            || nUtf32 == 0x206D // ACTIVATE ARABIC FORM SHAPING
  49            || nUtf32 == 0x206E // NATIONAL DIGIT SHAPES
  50            || nUtf32 == 0x206F // NOMINAL DIGIT SHAPES
  51            || nUtf32 == 0xFEFF // ZERO WIDTH NO-BREAK SPACE
  52            || nUtf32 == 0xFFF9 // INTERLINEAR ANNOTATION ANCHOR
  53            || nUtf32 == 0xFFFA // INTERLINEAR ANNOTATION SEPARATOR
  54            || nUtf32 == 0xFFFB // INTERLINEAR ANNOTATION TERMINATOR
  55            || nUtf32 == 0x1D173 // MUSICAL SYMBOL BEGIN BEAM
  56            || nUtf32 == 0x1D174 // MUSICAL SYMBOL END BEAM
  57            || nUtf32 == 0x1D175 // MUSICAL SYMBOL BEGIN TIE
  58            || nUtf32 == 0x1D176 // MUSICAL SYMBOL END TIE
  59            || nUtf32 == 0x1D177 // MUSICAL SYMBOL BEGIN SLUR
  60            || nUtf32 == 0x1D178 // MUSICAL SYMBOL END SLUR
  61            || nUtf32 == 0x1D179 // MUSICAL SYMBOL BEGIN PHRASE
  62            || nUtf32 == 0x1D17A // MUSICAL SYMBOL END PHRASE
  63            || nUtf32 == 0xE0001 // LANGUAGE TAG
  64            || (nUtf32 >= 0xE0020 && nUtf32 <= 0xE007F);
  65 }
  66
  67 bool ImplIsPrivateUse(sal_uInt32 nUtf32)
  68 {
  69     // All code points of
  70     // <http://www.unicode.org/Public/UNIDATA/UnicodeData.txt>, Version 3.1.1,
  71     // that have a General Category of Co (Other, Private Use):
  72     return (nUtf32 >= 0xE000 && nUtf32 <= 0xF8FF) || (nUtf32 >= 0xF0000 && nUtf32 <= 0xFFFFD)
  73            || (nUtf32 >= 0x100000 && nUtf32 <= 0x10FFFD);
  74 }
  75
  76 bool ImplIsZeroWidth(sal_uInt32 nUtf32)
  77 {
  78     // All code points of
  79     // <http://www.unicode.org/Public/UNIDATA/UnicodeData.txt>, Version 3.1.1,
  80     // that have "ZERO WIDTH" in their Character name:
  81     return nUtf32 == 0x200B // ZERO WIDTH SPACE
  82            || nUtf32 == 0x200C // ZERO WIDTH NON-JOINER
  83            || nUtf32 == 0x200D // ZERO WIDTH JOINER
  84            || nUtf32 == 0xFEFF; // ZERO WIDTH NO-BREAK SPACE
  85 }
  86
  87 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */