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