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., 51 Franklin Street - Fifth Floor, Boston, MA
20 02110-1301, 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
unicode_from_ascii(int * length,unichar ** unicode,const char * ascii)43 unicode_from_ascii (int *length, unichar **unicode, const char *ascii)
44 {
45 int len;
46 #ifndef _WIN32
47 const char *s;
48 unsigned short *w;
49
50 len = strlen (ascii);
51 *unicode = ((unichar *) res_alloc ((len + 1) * sizeof (unichar)));
52 for (s = ascii, w = *unicode; *s != '\0'; s++, w++)
53 *w = *s & 0xff;
54 *w = 0;
55 #else
56 /* We use MultiByteToWideChar rather than strlen to get the unicode
57 string length to allow multibyte "ascii" chars. The value returned
58 by this function includes the trailing '\0'. */
59 len = MultiByteToWideChar (CP_ACP, 0, ascii, -1, NULL, 0);
60 if (len)
61 {
62 *unicode = ((unichar *) res_alloc (len * sizeof (unichar)));
63 MultiByteToWideChar (CP_ACP, 0, ascii, -1, *unicode, len);
64 }
65 /* Discount the trailing '/0'. If MultiByteToWideChar failed,
66 this will set *length to -1. */
67 len--;
68 #endif
69
70 if (length != NULL)
71 *length = len;
72 }
73
74 /* Print the unicode string UNICODE to the file E. LENGTH is the
75 number of characters to print, or -1 if we should print until the
76 end of the string. FIXME: On a Windows host, we should be calling
77 some Windows function, probably WideCharToMultiByte. */
78
79 void
unicode_print(FILE * e,const unichar * unicode,int length)80 unicode_print (FILE *e, const unichar *unicode, int length)
81 {
82 while (1)
83 {
84 unichar ch;
85
86 if (length == 0)
87 return;
88 if (length > 0)
89 --length;
90
91 ch = *unicode;
92
93 if (ch == 0 && length < 0)
94 return;
95
96 ++unicode;
97
98 if ((ch & 0x7f) == ch)
99 {
100 if (ch == '\\')
101 fputs ("\\", e);
102 else if (ISPRINT (ch))
103 putc (ch, e);
104 else
105 {
106 switch (ch)
107 {
108 case ESCAPE_A:
109 fputs ("\\a", e);
110 break;
111
112 case ESCAPE_B:
113 fputs ("\\b", e);
114 break;
115
116 case ESCAPE_F:
117 fputs ("\\f", e);
118 break;
119
120 case ESCAPE_N:
121 fputs ("\\n", e);
122 break;
123
124 case ESCAPE_R:
125 fputs ("\\r", e);
126 break;
127
128 case ESCAPE_T:
129 fputs ("\\t", e);
130 break;
131
132 case ESCAPE_V:
133 fputs ("\\v", e);
134 break;
135
136 default:
137 fprintf (e, "\\%03o", (unsigned int) ch);
138 break;
139 }
140 }
141 }
142 else if ((ch & 0xff) == ch)
143 fprintf (e, "\\%03o", (unsigned int) ch);
144 else
145 fprintf (e, "\\x%x", (unsigned int) ch);
146 }
147 }
148