src/colrm/widechar.h

   1 /*
   2  * This program is free software; you can redistribute it and/or
   3  * modify it under the terms of the GNU General Public License
   4  * as published by the Free Software Foundation; either version 2
   5  * of the License, or (at your option) any later version.
   6  *
   7  * This program is distributed in the hope that it will be useful,
   8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  * GNU General Public License for more details.
  11  *
  12  * You should have received a copy of the GNU General Public License
  13  * along with this program; if not, write to the Free Software
  14  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  15  *
  16  * See the COPYING file for license information.
  17  */
  18 #ifndef WIDECHAR_H
  19 #define WIDECHAR_H
  20 /* Declarations for wide characters */
  21 /* This file must be included last because the redefinition of wchar_t may
  22    cause conflicts when system include files were included after it. */
  23 #if HAVE_CONFIG_H
  24 #  include "config.h"  /* for ENABLE_WIDECHAR */
  25 #endif
  26 /* don't include "common.h" here */
  27
  28 #ifdef ENABLE_WIDECHAR
  29
  30 # include <wchar.h>
  31 # include <wctype.h>
  32 #if 0 /* for testing on platforms without built-in wide character support */
  33 #  include <libutf8.h>
  34 #endif
  35
  36 #if 1
  37 /* explicit prototypes, since sometimes <wchar.h> does not give them */
  38 extern int wcwidth (wint_t c);
  39 extern int wcswidth (const wchar_t *s, size_t n);
  40 extern size_t wcslen (const wchar_t *s);
  41 extern wchar_t *wcsdup (const wchar_t *s);
  42 #endif
  43
  44 #else
  45
  46 # include <ctype.h>
  47   /* Fallback for types */
  48 # define wchar_t char
  49 # define wint_t int
  50 # define WEOF EOF
  51   /* Fallback for input operations */
  52 # define fgetwc fgetc
  53 # define getwc getc
  54 # define getwchar getchar
  55 # define fgetws fgets
  56   /* Fallback for output operations */
  57 # define fputwc fputc
  58 # define putwc putc
  59 # define putwchar putchar
  60 # define fputws fputs
  61   /* Fallback for character classification */
  62 # define iswgraph isgraph
  63 # define iswprint isprint
  64 # define iswspace isspace
  65   /* Fallback for string functions */
  66 # define wcschr strchr
  67 # define wcsdup strdup
  68 # define wcslen strlen
  69
  70 # define wcwidth(c) 1
  71
  72 #endif
  73 #endif