nel/src/misc/unicode.cpp

   1 // NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
   2 // Copyright (C) 2010  Winch Gate Property Limited
   3 //
   4 // This source file has been modified by the following contributors:
   5 // Copyright (C) 2020  Jan BOON (Kaetemi) <jan.boon@kaetemi.be>
   6 //
   7 // This program is free software: you can redistribute it and/or modify
   8 // it under the terms of the GNU Affero General Public License as
   9 // published by the Free Software Foundation, either version 3 of the
  10 // License, or (at your option) any later version.
  11 //
  12 // This program is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU Affero General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU Affero General Public License
  18 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 #include "stdmisc.h"
  21 #include "nel/misc/ucstring.h"
  22 #include "nel/misc/utf_string_view.h"
  23
  24 #ifdef DEBUG_NEW
  25         #define new DEBUG_NEW
  26 #endif
  27
  28 namespace       NLMISC
  29 {
  30
  31 ucstring toLower (const ucstring &str)
  32 {
  33         return ucstring::makeFromUtf8(toLower(str.toUtf8()));
  34 }
  35
  36 // ***************************************************************************
  37
  38 void toLower (ucchar *str)
  39 {
  40         while (*str)
  41         {
  42                 *str = toLower(*str);
  43                 ++str;
  44         }
  45 }
  46
  47 // ***************************************************************************
  48
  49 ucchar toLower (ucchar c)
  50 {
  51         if ((c & 0xF800) == 0xD800)
  52                 return c;
  53         std::string tmpc, tmpr;
  54         CUtfStringView::append(tmpc, c);
  55         ptrdiff_t i = 0;
  56         appendToLower(tmpr, tmpc, i);
  57         ucstring res = CUtfStringView(tmpr).toUtf16();
  58         nlassert(res.size() == 1);
  59         return res[0];
  60 }
  61
  62 // ***************************************************************************
  63
  64 ucstring toUpper (const ucstring &str)
  65 {
  66         return ucstring::makeFromUtf8(toUpper(str.toUtf8()));
  67 }
  68
  69 // ***************************************************************************
  70
  71 void toUpper (ucchar *str)
  72 {
  73         while (*str)
  74         {
  75                 *str = toUpper(*str);
  76                 ++str;
  77         }
  78 }
  79
  80 // ***************************************************************************
  81
  82 ucchar toUpper (ucchar c)
  83 {
  84         if ((c & 0xF800) == 0xD800)
  85                 return c;
  86         std::string tmpc, tmpr;
  87         CUtfStringView::append(tmpc, c);
  88         ptrdiff_t i = 0;
  89         appendToUpper(tmpr, tmpc, i);
  90         ucstring res = CUtfStringView(tmpr).toUtf16();
  91         nlassert(res.size() == 1);
  92         return res[0];
  93 }
  94
  95 } // NLMISC