binutils/winduni.c

   1 /* winduni.c -- unicode support for the windres program.
   2    Copyright 1997, 1998, 2000, 2001 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 (length, unicode, ascii)
  44      int *length;
  45      unichar **unicode;
  46      const char *ascii;
  47 {
  48   int len;
  49   const char *s;
  50   unsigned short *w;
  51
  52   len = strlen (ascii);
  53
  54   if (length != NULL)
  55     *length = len;
  56
  57   *unicode = ((unichar *) res_alloc ((len + 1) * sizeof (unichar)));
  58
  59 #ifdef _WIN32
  60   /* FIXME: On Windows, we should be using MultiByteToWideChar to set
  61      the length.  */
  62   MultiByteToWideChar (CP_ACP, 0, ascii, len + 1, *unicode, len + 1);
  63 #else
  64   for (s = ascii, w = *unicode; *s != '\0'; s++, w++)
  65     *w = *s & 0xff;
  66   *w = 0;
  67 #endif
  68 }
  69
  70 /* Print the unicode string UNICODE to the file E.  LENGTH is the
  71    number of characters to print, or -1 if we should print until the
  72    end of the string.  FIXME: On a Windows host, we should be calling
  73    some Windows function, probably WideCharToMultiByte.  */
  74
  75 void
  76 unicode_print (e, unicode, length)
  77      FILE *e;
  78      const unichar *unicode;
  79      int length;
  80 {
  81   while (1)
  82     {
  83       unichar ch;
  84
  85       if (length == 0)
  86         return;
  87       if (length > 0)
  88         --length;
  89
  90       ch = *unicode;
  91
  92       if (ch == 0 && length < 0)
  93         return;
  94
  95       ++unicode;
  96
  97       if ((ch & 0x7f) == ch)
  98         {
  99           if (ch == '\\')
 100             fputs ("\\", e);
 101           else if (ISPRINT (ch))
 102             putc (ch, e);
 103           else
 104             {
 105               switch (ch)
 106                 {
 107                 case ESCAPE_A:
 108                   fputs ("\\a", e);
 109                   break;
 110
 111                 case ESCAPE_B:
 112                   fputs ("\\b", e);
 113                   break;
 114
 115                 case ESCAPE_F:
 116                   fputs ("\\f", e);
 117                   break;
 118
 119                 case ESCAPE_N:
 120                   fputs ("\\n", e);
 121                   break;
 122
 123                 case ESCAPE_R:
 124                   fputs ("\\r", e);
 125                   break;
 126
 127                 case ESCAPE_T:
 128                   fputs ("\\t", e);
 129                   break;
 130
 131                 case ESCAPE_V:
 132                   fputs ("\\v", e);
 133                   break;
 134
 135                 default:
 136                   fprintf (e, "\\%03o", (unsigned int) ch);
 137                   break;
 138                 }
 139             }
 140         }
 141       else if ((ch & 0xff) == ch)
 142         fprintf (e, "\\%03o", (unsigned int) ch);
 143       else
 144         fprintf (e, "\\x%x", (unsigned int) ch);
 145     }
 146 }