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e3f6cbd9 VS |
1 | /* |
2 | * Name: wx/chartype.h | |
3 | * Purpose: Declarations of wxChar and related types | |
e9670814 | 4 | * Author: Joel Farley, Ove Kåven |
e3f6cbd9 VS |
5 | * Modified by: Vadim Zeitlin, Robert Roebling, Ron Lee |
6 | * Created: 1998/06/12 | |
7 | * RCS-ID: $Id$ | |
8 | * Copyright: (c) 1998-2006 wxWidgets dev team | |
9 | * Licence: wxWindows licence | |
10 | */ | |
11 | ||
12 | /* THIS IS A C FILE, DON'T USE C++ FEATURES (IN PARTICULAR COMMENTS) IN IT */ | |
13 | ||
14 | #ifndef _WX_WXCHARTYPE_H_ | |
15 | #define _WX_WXCHARTYPE_H_ | |
16 | ||
17 | /* defs.h indirectly includes this file, so don't include it here */ | |
18 | #include "wx/platform.h" | |
19 | ||
20 | /* check whether we have wchar_t and which size it is if we do */ | |
21 | #if !defined(wxUSE_WCHAR_T) | |
22 | #if defined(__UNIX__) | |
23 | #if defined(HAVE_WCSTR_H) || defined(HAVE_WCHAR_H) || defined(__FreeBSD__) || defined(__DARWIN__) | |
24 | #define wxUSE_WCHAR_T 1 | |
25 | #else | |
26 | #define wxUSE_WCHAR_T 0 | |
27 | #endif | |
28 | #elif defined(__GNUWIN32__) && !defined(__MINGW32__) | |
29 | #define wxUSE_WCHAR_T 0 | |
30 | #elif defined(__WATCOMC__) | |
31 | #define wxUSE_WCHAR_T 0 | |
32 | #elif defined(__VISAGECPP__) && (__IBMCPP__ < 400) | |
33 | #define wxUSE_WCHAR_T 0 | |
34 | #else | |
35 | /* add additional compiler checks if this fails */ | |
36 | #define wxUSE_WCHAR_T 1 | |
37 | #endif | |
38 | #endif /* !defined(wxUSE_WCHAR_T) */ | |
39 | ||
40 | /* Unicode support requires wchar_t */ | |
93928d51 VS |
41 | #if !wxUSE_WCHAR_T |
42 | #error "wchar_t must be available" | |
e3f6cbd9 VS |
43 | #endif /* Unicode */ |
44 | ||
45 | /* | |
46 | non Unix compilers which do have wchar.h (but not tchar.h which is included | |
47 | below and which includes wchar.h anyhow). | |
48 | ||
49 | Actually MinGW has tchar.h, but it does not include wchar.h | |
50 | */ | |
2415cf67 | 51 | #if defined(__VISAGECPP__) || defined(__MINGW32__) || defined(__WATCOMC__) |
e3f6cbd9 VS |
52 | #ifndef HAVE_WCHAR_H |
53 | #define HAVE_WCHAR_H | |
54 | #endif | |
55 | #endif | |
e3f6cbd9 | 56 | |
8d94819c VS |
57 | #ifdef HAVE_WCHAR_H |
58 | /* the current (as of Nov 2002) version of cygwin has a bug in its */ | |
59 | /* wchar.h -- there is no extern "C" around the declarations in it */ | |
60 | /* and this results in linking errors later; also, at least on some */ | |
61 | /* Cygwin versions, wchar.h requires sys/types.h */ | |
62 | #ifdef __CYGWIN__ | |
63 | #include <sys/types.h> | |
64 | #ifdef __cplusplus | |
65 | extern "C" { | |
66 | #endif | |
67 | #endif /* Cygwin */ | |
e3f6cbd9 | 68 | |
8d94819c | 69 | #include <wchar.h> |
e3f6cbd9 | 70 | |
8d94819c VS |
71 | #if defined(__CYGWIN__) && defined(__cplusplus) |
72 | } | |
73 | #endif /* Cygwin and C++ */ | |
e3f6cbd9 | 74 | |
8d94819c VS |
75 | #elif defined(HAVE_WCSTR_H) |
76 | /* old compilers have relevant declarations here */ | |
77 | #include <wcstr.h> | |
78 | #elif defined(__FreeBSD__) || defined(__DARWIN__) || defined(__EMX__) | |
79 | /* include stdlib.h for wchar_t */ | |
80 | #include <stdlib.h> | |
81 | #endif /* HAVE_WCHAR_H */ | |
e3f6cbd9 | 82 | |
8d94819c VS |
83 | #ifdef HAVE_WIDEC_H |
84 | #include <widec.h> | |
85 | #endif | |
e3f6cbd9 VS |
86 | |
87 | /* -------------------------------------------------------------------------- */ | |
88 | /* define wxHAVE_TCHAR_SUPPORT for the compilers which support the TCHAR type */ | |
89 | /* mapped to either char or wchar_t depending on the ASCII/Unicode mode and */ | |
90 | /* have the function mapping _tfoo() -> foo() or wfoo() */ | |
91 | /* -------------------------------------------------------------------------- */ | |
92 | ||
93 | /* VC++ and BC++ starting with 5.2 have TCHAR support */ | |
94 | #ifdef __VISUALC__ | |
95 | #define wxHAVE_TCHAR_SUPPORT | |
96 | #elif defined(__BORLANDC__) && (__BORLANDC__ >= 0x520) | |
97 | #define wxHAVE_TCHAR_SUPPORT | |
98 | #include <ctype.h> | |
99 | #elif defined(__WATCOMC__) | |
100 | #define wxHAVE_TCHAR_SUPPORT | |
101 | #elif defined(__DMC__) | |
102 | #define wxHAVE_TCHAR_SUPPORT | |
e3f6cbd9 VS |
103 | #elif defined(__MINGW32__) && wxCHECK_W32API_VERSION( 1, 0 ) |
104 | #define wxHAVE_TCHAR_SUPPORT | |
105 | #include <stddef.h> | |
106 | #include <string.h> | |
107 | #include <ctype.h> | |
108 | #elif 0 && defined(__VISAGECPP__) && (__IBMCPP__ >= 400) | |
109 | /* VZ: the old VisualAge definitions were completely wrong and had no */ | |
110 | /* chance at all to work in Unicode build anyhow so let's pretend */ | |
111 | /* that VisualAge does _not_ support TCHAR for the moment (as */ | |
112 | /* indicated by "0 &&" above) until someone really has time to delve */ | |
113 | /* into Unicode issues under OS/2 */ | |
114 | ||
115 | /* VisualAge 4.0+ supports TCHAR */ | |
116 | #define wxHAVE_TCHAR_SUPPORT | |
117 | #endif /* compilers with (good) TCHAR support */ | |
118 | ||
119 | #ifdef wxHAVE_TCHAR_SUPPORT | |
120 | /* get TCHAR definition if we've got it */ | |
121 | #include <tchar.h> | |
122 | ||
123 | /* we surely do have wchar_t if we have TCHAR */ | |
124 | #ifndef wxUSE_WCHAR_T | |
125 | #define wxUSE_WCHAR_T 1 | |
126 | #endif /* !defined(wxUSE_WCHAR_T) */ | |
127 | #endif /* wxHAVE_TCHAR_SUPPORT */ | |
128 | ||
129 | /* ------------------------------------------------------------------------- */ | |
130 | /* define wxChar type */ | |
131 | /* ------------------------------------------------------------------------- */ | |
132 | ||
133 | /* TODO: define wxCharInt to be equal to either int or wint_t? */ | |
134 | ||
135 | #if !wxUSE_UNICODE | |
136 | typedef char wxChar; | |
137 | typedef signed char wxSChar; | |
138 | typedef unsigned char wxUChar; | |
9a6d1438 | 139 | #else |
e3f6cbd9 VS |
140 | /* VZ: note that VC++ defines _T[SU]CHAR simply as wchar_t and not as */ |
141 | /* signed/unsigned version of it which (a) makes sense to me (unlike */ | |
142 | /* char wchar_t is always unsigned) and (b) was how the previous */ | |
143 | /* definitions worked so keep it like this */ | |
144 | ||
145 | /* Sun's SunPro compiler supports the wchar_t type and wide character */ | |
146 | /* functions, but does not define __WCHAR_TYPE__. Define it here to */ | |
147 | /* allow unicode enabled builds. */ | |
b69ae27a VZ |
148 | #if (defined(__SUNPRO_CC) || defined(__SUNPRO_C)) && !defined(__WCHAR_TYPE__) |
149 | #define __WCHAR_TYPE__ wxchar_t | |
e3f6cbd9 VS |
150 | #endif |
151 | ||
152 | /* GNU libc has __WCHAR_TYPE__ which requires special treatment, see */ | |
153 | /* comment below */ | |
154 | #if !defined(__WCHAR_TYPE__) || \ | |
155 | (!defined(__GNUC__) || wxCHECK_GCC_VERSION(2, 96)) | |
156 | /* standard case */ | |
157 | typedef wchar_t wxChar; | |
158 | typedef wchar_t wxSChar; | |
159 | typedef wchar_t wxUChar; | |
160 | #else /* __WCHAR_TYPE__ and gcc < 2.96 */ | |
161 | /* VS: wxWidgets used to define wxChar as __WCHAR_TYPE__ here. */ | |
162 | /* However, this doesn't work with new GCC 3.x compilers because */ | |
163 | /* wchar_t is C++'s builtin type in the new standard. OTOH, old */ | |
164 | /* compilers (GCC 2.x) won't accept new definition of */ | |
165 | /* wx{S,U}CharType, so we have to define wxChar */ | |
166 | /* conditionally depending on detected compiler & compiler */ | |
167 | /* version. */ | |
168 | ||
169 | /* with old definition of wxChar. */ | |
170 | #define wchar_t __WCHAR_TYPE__ | |
171 | typedef __WCHAR_TYPE__ wxChar; | |
172 | typedef __WCHAR_TYPE__ wxSChar; | |
173 | typedef __WCHAR_TYPE__ wxUChar; | |
174 | #endif /* __WCHAR_TYPE__ */ | |
175 | #endif /* ASCII/Unicode */ | |
176 | ||
8f93a29f VS |
177 | /* ------------------------------------------------------------------------- */ |
178 | /* define wxStringCharType */ | |
179 | /* ------------------------------------------------------------------------- */ | |
180 | ||
181 | /* depending on the platform, Unicode build can either store wxStrings as | |
182 | wchar_t* or UTF-8 encoded char*: */ | |
183 | #if wxUSE_UNICODE | |
28efe654 | 184 | /* FIXME-UTF8: what would be better place for this? */ |
cb352236 VS |
185 | #if defined(wxUSE_UTF8_LOCALE_ONLY) && !defined(wxUSE_UNICODE_UTF8) |
186 | #error "wxUSE_UTF8_LOCALE_ONLY only makes sense with wxUSE_UNICODE_UTF8" | |
187 | #endif | |
188 | #ifndef wxUSE_UTF8_LOCALE_ONLY | |
189 | #define wxUSE_UTF8_LOCALE_ONLY 0 | |
190 | #endif | |
191 | ||
81727065 VS |
192 | #ifndef wxUSE_UNICODE_UTF8 |
193 | #define wxUSE_UNICODE_UTF8 0 | |
194 | #endif | |
195 | ||
196 | #if wxUSE_UNICODE_UTF8 | |
197 | #define wxUSE_UNICODE_WCHAR 0 | |
198 | #else | |
199 | #define wxUSE_UNICODE_WCHAR 1 | |
200 | #endif | |
8f93a29f VS |
201 | #else |
202 | #define wxUSE_UNICODE_WCHAR 0 | |
203 | #define wxUSE_UNICODE_UTF8 0 | |
5becc841 | 204 | #define wxUSE_UTF8_LOCALE_ONLY 0 |
8f93a29f VS |
205 | #endif |
206 | ||
207 | /* define char type used by wxString internal representation: */ | |
a0516656 | 208 | #if wxUSE_UNICODE_WCHAR |
8f93a29f | 209 | typedef wchar_t wxStringCharType; |
a0516656 | 210 | #else /* wxUSE_UNICODE_UTF8 || ANSI */ |
8f93a29f VS |
211 | typedef char wxStringCharType; |
212 | #endif | |
213 | ||
214 | ||
e3f6cbd9 | 215 | /* ------------------------------------------------------------------------- */ |
9a83f860 | 216 | /* define wxT() and related macros */ |
e3f6cbd9 VS |
217 | /* ------------------------------------------------------------------------- */ |
218 | ||
219 | /* BSD systems define _T() to be something different in ctype.h, override it */ | |
220 | #if defined(__FreeBSD__) || defined(__DARWIN__) | |
221 | #include <ctype.h> | |
222 | #undef _T | |
223 | #endif | |
224 | ||
9a83f860 VZ |
225 | /* |
226 | wxT ("wx text") macro turns a literal string constant into a wide char | |
227 | constant. It is mostly unnecessary with wx 2.9 but defined for | |
228 | compatibility. | |
229 | */ | |
230 | #ifndef wxT | |
e3f6cbd9 | 231 | #if !wxUSE_UNICODE |
9a83f860 | 232 | #define wxT(x) x |
e3f6cbd9 | 233 | #else /* Unicode */ |
25859335 VZ |
234 | /* |
235 | Notice that we use an intermediate macro to allow x to be expanded | |
236 | if it's a macro itself. | |
237 | */ | |
238 | #ifndef wxCOMPILER_BROKEN_CONCAT_OPER | |
239 | #define wxT(x) wxCONCAT_HELPER(L, x) | |
240 | #else | |
241 | #define wxT(x) wxPREPEND_L(x) | |
242 | #endif | |
e3f6cbd9 | 243 | #endif /* ASCII/Unicode */ |
9a83f860 | 244 | #endif /* !defined(wxT) */ |
e3f6cbd9 | 245 | |
9204fde6 VZ |
246 | /* |
247 | wxT_2 exists only for compatibility with wx 2.x and is the same as wxT() in | |
248 | that version but nothing in the newer ones. | |
249 | */ | |
250 | #define wxT_2(x) x | |
251 | ||
a0516656 VZ |
252 | /* |
253 | wxS ("wx string") macro can be used to create literals using the same | |
254 | representation as wxString does internally, i.e. wchar_t in Unicode build | |
255 | under Windows or char in UTF-8-based Unicode builds and (deprecated) ANSI | |
256 | builds everywhere (see wxStringCharType definition above). | |
257 | */ | |
258 | #if wxUSE_UNICODE_WCHAR | |
25859335 VZ |
259 | /* |
260 | As above with wxT(), wxS() argument is expanded if it's a macro. | |
261 | */ | |
262 | #ifndef wxCOMPILER_BROKEN_CONCAT_OPER | |
263 | #define wxS(x) wxCONCAT_HELPER(L, x) | |
264 | #else | |
265 | #define wxS(x) wxPREPEND_L(x) | |
266 | #endif | |
a0516656 VZ |
267 | #else /* wxUSE_UNICODE_UTF8 || ANSI */ |
268 | #define wxS(x) x | |
269 | #endif | |
270 | ||
9a83f860 VZ |
271 | /* |
272 | _T() is a synonym for wxT() familiar to Windows programmers. As this macro | |
273 | has even higher risk of conflicting with system headers, its use is | |
274 | discouraged and you may predefine wxNO__T to disable it. Additionally, we | |
275 | do it ourselves for Sun CC which is known to use it in its standard headers | |
276 | (see #10660). | |
277 | */ | |
278 | #if defined(__SUNPRO_C) || defined(__SUNPRO_CC) | |
279 | #ifndef wxNO__T | |
280 | #define wxNO__T | |
281 | #endif | |
282 | #endif | |
283 | ||
284 | #if !defined(_T) && !defined(wxNO__T) | |
285 | #define _T(x) wxT(x) | |
286 | #endif | |
e3f6cbd9 VS |
287 | |
288 | /* a helper macro allowing to make another macro Unicode-friendly, see below */ | |
9a83f860 | 289 | #define wxAPPLY_T(x) wxT(x) |
e3f6cbd9 VS |
290 | |
291 | /* Unicode-friendly __FILE__, __DATE__ and __TIME__ analogs */ | |
292 | #ifndef __TFILE__ | |
293 | #define __TFILE__ wxAPPLY_T(__FILE__) | |
294 | #endif | |
295 | ||
296 | #ifndef __TDATE__ | |
297 | #define __TDATE__ wxAPPLY_T(__DATE__) | |
298 | #endif | |
299 | ||
300 | #ifndef __TTIME__ | |
301 | #define __TTIME__ wxAPPLY_T(__TIME__) | |
302 | #endif | |
303 | ||
304 | #endif /* _WX_WXCHARTYPE_H_ */ | |
305 |