binutils/winduni.c

   1 /* winduni.c -- unicode support for the windres program.
   2    Copyright 1997, 1998, 2000, 2001, 2003 Free Software Foundation, Inc.
   3    Written by Ian Lance Taylor, Cygnus Support.
   4
   5    This file is part of GNU Binutils.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (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 General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  20    02111-1307, USA.  */
  21
  22 /* This file contains unicode support routines for the windres
  23    program.  Ideally, we would have generic unicode support which
  24    would work on all systems.  However, we don't.  Instead, on a
  25    Windows host, we are prepared to call some Windows routines.  This
  26    means that we will generate different output on Windows and Unix
  27    hosts, but that seems better than not really supporting unicode at
  28    all.  */
  29
  30 #include "bfd.h"
  31 #include "bucomm.h"
  32 #include "winduni.h"
  33 #include "safe-ctype.h"
  34
  35 #ifdef _WIN32
  36 #include <windows.h>
  37 #endif
  38
  39 /* Convert an ASCII string to a unicode string.  We just copy it,
  40    expanding chars to shorts, rather than doing something intelligent.  */
  41
  42 void
  43 unicode_from_ascii (int *length, unichar **unicode, const char *ascii)
  44 {
  45   int len;
  46   const char *s;
  47   unsigned short *w;
  48
  49   len = strlen (ascii);
  50
  51   if (length != NULL)
  52     *length = len;
  53
  54   *unicode = ((unichar *) res_alloc ((len + 1) * sizeof (unichar)));
  55
  56 #ifdef _WIN32
  57   /* FIXME: On Windows, we should be using MultiByteToWideChar to set
  58      the length.  */
  59   MultiByteToWideChar (CP_ACP, 0, ascii, len + 1, *unicode, len + 1);
  60 #else
  61   for (s = ascii, w = *unicode; *s != '\0'; s++, w++)
  62     *w = *s & 0xff;
  63   *w = 0;
  64 #endif
  65 }
  66
  67 /* Print the unicode string UNICODE to the file E.  LENGTH is the
  68    number of characters to print, or -1 if we should print until the
  69    end of the string.  FIXME: On a Windows host, we should be calling
  70    some Windows function, probably WideCharToMultiByte.  */
  71
  72 void
  73 unicode_print (FILE *e, const unichar *unicode, int length)
  74 {
  75   while (1)
  76     {
  77       unichar ch;
  78
  79       if (length == 0)
  80         return;
  81       if (length > 0)
  82         --length;
  83
  84       ch = *unicode;
  85
  86       if (ch == 0 && length < 0)
  87         return;
  88
  89       ++unicode;
  90
  91       if ((ch & 0x7f) == ch)
  92         {
  93           if (ch == '\\')
  94             fputs ("\\", e);
  95           else if (ISPRINT (ch))
  96             putc (ch, e);
  97           else
  98             {
  99               switch (ch)
 100                 {
 101                 case ESCAPE_A:
 102                   fputs ("\\a", e);
 103                   break;
 104
 105                 case ESCAPE_B:
 106                   fputs ("\\b", e);
 107                   break;
 108
 109                 case ESCAPE_F:
 110                   fputs ("\\f", e);
 111                   break;
 112
 113                 case ESCAPE_N:
 114                   fputs ("\\n", e);
 115                   break;
 116
 117                 case ESCAPE_R:
 118                   fputs ("\\r", e);
 119                   break;
 120
 121                 case ESCAPE_T:
 122                   fputs ("\\t", e);
 123                   break;
 124
 125                 case ESCAPE_V:
 126                   fputs ("\\v", e);
 127                   break;
 128
 129                 default:
 130                   fprintf (e, "\\%03o", (unsigned int) ch);
 131                   break;
 132                 }
 133             }
 134         }
 135       else if ((ch & 0xff) == ch)
 136         fprintf (e, "\\%03o", (unsigned int) ch);
 137       else
 138         fprintf (e, "\\x%x", (unsigned int) ch);
 139     }
 140 }