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 }
141