Commit | Line | Data |
---|---|---|
6c7a06a3 TT |
1 | /* Wide characters for gdb |
2 | Copyright (C) 2009 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #ifndef GDB_WCHAR_H | |
20 | #define GDB_WCHAR_H | |
21 | ||
732f6a93 TT |
22 | /* We handle three different modes here. |
23 | ||
24 | Capable systems have the full suite: wchar_t support and iconv | |
25 | (perhaps via GNU libiconv). On these machines, full functionality | |
26 | is available. | |
27 | ||
28 | DJGPP is known to have libiconv but not wchar_t support. On | |
29 | systems like this, we use the narrow character functions. The full | |
30 | functionality is available to the user, but many characters (those | |
31 | outside the narrow range) will be displayed as escapes. | |
32 | ||
33 | Finally, some systems do not have iconv. Here we provide a phony | |
34 | iconv which only handles a single character set, and we provide | |
35 | wrappers for the wchar_t functionality we use. */ | |
36 | ||
37 | ||
38 | #define INTERMEDIATE_ENCODING "wchar_t" | |
39 | ||
40 | #if defined (HAVE_ICONV) | |
6c7a06a3 | 41 | #include <iconv.h> |
732f6a93 TT |
42 | #else |
43 | /* This define is used elsewhere so we don't need to duplicate the | |
44 | same checking logic in multiple places. */ | |
45 | #define PHONY_ICONV | |
46 | #endif | |
47 | ||
48 | /* We use "btowc" as a sentinel to detect functioning wchar_t | |
49 | support. */ | |
50 | #if defined (HAVE_ICONV) && defined (HAVE_WCHAR_H) && defined (HAVE_BTOWC) | |
51 | ||
6c7a06a3 TT |
52 | #include <wchar.h> |
53 | #include <wctype.h> | |
54 | ||
55 | typedef wchar_t gdb_wchar_t; | |
56 | typedef wint_t gdb_wint_t; | |
57 | ||
58 | #define gdb_wcslen wcslen | |
59 | #define gdb_iswprint iswprint | |
60 | #define gdb_iswdigit iswdigit | |
61 | #define gdb_btowc btowc | |
62 | #define gdb_WEOF WEOF | |
63 | ||
64 | #define LCST(X) L ## X | |
65 | ||
66 | #else | |
67 | ||
68 | typedef char gdb_wchar_t; | |
69 | typedef int gdb_wint_t; | |
70 | ||
71 | #define gdb_wcslen strlen | |
72 | #define gdb_iswprint isprint | |
73 | #define gdb_iswdigit isdigit | |
74 | #define gdb_btowc /* empty */ | |
75 | #define gdb_WEOF EOF | |
76 | ||
77 | #define LCST(X) X | |
78 | ||
732f6a93 TT |
79 | /* If we are using the narrow character set, we want to use the host |
80 | narrow encoding as our intermediate encoding. However, if we are | |
81 | also providing a phony iconv, we might as well just stick with | |
82 | "wchar_t". */ | |
83 | #ifndef PHONY_ICONV | |
84 | #undef INTERMEDIATE_ENCODING | |
85 | #define INTERMEDIATE_ENCODING host_charset () | |
86 | #endif | |
6c7a06a3 | 87 | |
732f6a93 | 88 | #endif |
6c7a06a3 TT |
89 | |
90 | #endif /* GDB_WCHAR_H */ |