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1//////////////////////////////////////////////////////////////////////////////
2// Name: wx/xlocale.h
3// Purpose: Header to provide some xlocale wrappers
4// Author: Brian Vanderburg II, Vadim Zeitlin
5// Created: 2008-01-07
6// RCS-ID: $Id$
7// Copyright: (c) 2008 Brian Vanderburg II
8// 2008 Vadim Zeitlin <vadim@wxwidgets.org>
9// Licence: wxWindows licence
10///////////////////////////////////////////////////////////////////////////////
11
12/*
13 This header defines portable wrappers around xlocale foo_l() functions or
14 their MSVC proprietary _foo_l() equivalents when they are available and
15 implements these functions for the "C" locale [only] if they are not. This
16 allows the program running under the default user locale to still use "C"
17 locale for operations such as reading data from files where they are stored
18 using decimal point &c.
19
20 TODO: Currently only the character classification and transformation
21 functions are implemented, we also need at least
22 - numbers: atof_l(), strtod_l() &c
23 - formatted IO: scanf_l(), printf_l() &c
24 - time: strftime_l(), strptime_l()
25 */
26
27#ifndef _WX_XLOCALE_H_
28#define _WX_XLOCALE_H_
29
30#include "wx/defs.h" // wxUSE_XLOCALE
31
32#if wxUSE_XLOCALE
33
34#include "wx/crt.h" // Includes wx/chartype.h, wx/wxcrt.h(wx/string.h)
35#include "wx/intl.h" // wxLanguage
36
37// The platform-specific locale type
38// If wxXLocale_t is not defined, then only "C" locale support is provided
39#ifdef wxHAS_XLOCALE_SUPPORT
ab63f998 40 #if wxCHECK_VISUALC_VERSION(8) && !defined(__WXWINCE__)
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41 typedef _locale_t wxXLocale_t;
42 #define wxXLOCALE_IDENT(name) _ ## name
43 #elif defined(HAVE_LOCALE_T)
44 #include <locale.h>
45 #include <xlocale.h>
46 #include <ctype.h>
47
48 #if wxUSE_UNICODE
49 #include <wctype.h>
50 #endif
51
52 // Locale type and identifier name
53 typedef locale_t wxXLocale_t;
54
55 #define wxXLOCALE_IDENT(name) name
56 #else
57 #error "Unknown xlocale support"
58 #endif
59#endif // wxHAS_XLOCALE_SUPPORT
60
61
62// wxXLocale is a wrapper around the native type representing a locale.
63//
64// It is not to be confused with wxLocale, which handles actually changing the
65// locale, loading message catalogs, etc. This just stores a locale value.
66// The similarity of names is unfortunate, but there doesn't seem to be any
67// better alternative right now. Perhaps by wxWidgets 4.0 better naming could
68// be used, or this class could become wxLocale (a wrapper for the value), and
69// some other class could be used to load the language catalogs or something
70// that would be clearer
71#ifdef wxHAS_XLOCALE_SUPPORT
72
73class WXDLLIMPEXP_BASE wxXLocale
74{
75public:
76 // Construct an uninitialized locale
77 wxXLocale() { m_locale = NULL; }
78
79 // Construct from a symbolic language constant
80 wxXLocale(wxLanguage lang);
81
82 // Construct from the given language string
83 wxXLocale(const char *loc) { Init(loc); }
84
85 // Destroy the locale
86 ~wxXLocale() { Free(); }
87
88
89 // Get the global "C" locale object
90 static wxXLocale& GetCLocale();
91
92 // Check if the object represents a valid locale (notice that without
93 // wxHAS_XLOCALE_SUPPORT the only valid locale is the "C" one)
94 bool IsOk() const { return m_locale != NULL; }
95
96 // Get the type
97 wxXLocale_t Get() const { return m_locale; }
98
99private:
100 // Special ctor for the "C" locale, it's only used internally as the user
101 // code is supposed to use GetCLocale()
102 wxXLocale(struct wxXLocaleCTag * WXUNUSED(dummy)) { Init("C"); }
103
104 // Create from the given language string (called from ctors)
105 void Init(const char *loc);
106
107 // Free the locale if it's non-NULL
108 void Free();
109
110
111 // The corresponding locale handle, NULL if invalid
112 wxXLocale_t m_locale;
113
114
115 // POSIX xlocale API provides a duplocale() function but MSVC locale API
116 // doesn't give us any means to copy a _locale_t object so we reduce the
117 // functionality to least common denominator here -- it shouldn't be a
118 // problem as copying the locale objects shouldn't be often needed
c0c133e1 119 wxDECLARE_NO_COPY_CLASS(wxXLocale);
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120};
121
122#else // !wxHAS_XLOCALE_SUPPORT
123
124// Skeleton version supporting only the "C" locale for the systems without
125// xlocale support
126class WXDLLIMPEXP_BASE wxXLocale
127{
128public:
129 // Construct an uninitialized locale
130 wxXLocale() { m_isC = false; }
131
132 // Construct from a symbolic language constant: unless the language is
133 // wxLANGUAGE_ENGLISH_US (which we suppose to be the same as "C" locale)
134 // the object will be invalid
135 wxXLocale(wxLanguage lang)
136 {
137 m_isC = lang == wxLANGUAGE_ENGLISH_US;
138 }
139
140 // Construct from the given language string: unless the string is "C" or
141 // "POSIX" the object will be invalid
142 wxXLocale(const char *loc)
143 {
144 m_isC = loc && (strcmp(loc, "C") == 0 || strcmp(loc, "POSIX") == 0);
145 }
146
147 // Default copy ctor, assignment operator and dtor are ok (or would be if
148 // we didn't use DECLARE_NO_COPY_CLASS() for consistency with the xlocale
149 // version)
150
151
152 // Get the global "C" locale object
153 static wxXLocale& GetCLocale();
154
155 // Check if the object represents a valid locale (notice that without
156 // wxHAS_XLOCALE_SUPPORT the only valid locale is the "C" one)
157 bool IsOk() const { return m_isC; }
158
159private:
160 // Special ctor for the "C" locale, it's only used internally as the user
161 // code is supposed to use GetCLocale()
162 wxXLocale(struct wxXLocaleCTag * WXUNUSED(dummy)) { m_isC = true; }
163
164 // Without xlocale support this class can only represent "C" locale, if
165 // this is false the object is invalid
166 bool m_isC;
167
168
169 // although it's not a problem to copy the objects of this class, we use
170 // this macro in this implementation for consistency with the xlocale-based
171 // one which can't be copied when using MSVC locale API
c0c133e1 172 wxDECLARE_NO_COPY_CLASS(wxXLocale);
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173};
174
175#endif // wxHAS_XLOCALE_SUPPORT/!wxHAS_XLOCALE_SUPPORT
176
177
178// A shorter synonym for the most commonly used locale object
179#define wxCLocale (wxXLocale::GetCLocale())
180
181
182// Wrappers for various functions:
183#ifdef wxHAS_XLOCALE_SUPPORT
184
185 // ctype functions
186 #define wxCRT_Isalnum_lA wxXLOCALE_IDENT(isalnum_l)
187 #define wxCRT_Isalpha_lA wxXLOCALE_IDENT(isalpha_l)
188 #define wxCRT_Iscntrl_lA wxXLOCALE_IDENT(iscntrl_l)
189 #define wxCRT_Isdigit_lA wxXLOCALE_IDENT(isdigit_l)
190 #define wxCRT_Isgraph_lA wxXLOCALE_IDENT(isgraph_l)
191 #define wxCRT_Islower_lA wxXLOCALE_IDENT(islower_l)
192 #define wxCRT_Isprint_lA wxXLOCALE_IDENT(isprint_l)
193 #define wxCRT_Ispunct_lA wxXLOCALE_IDENT(ispunct_l)
194 #define wxCRT_Isspace_lA wxXLOCALE_IDENT(isspace_l)
195 #define wxCRT_Isupper_lA wxXLOCALE_IDENT(isupper_l)
196 #define wxCRT_Isxdigit_lA wxXLOCALE_IDENT(isxdigit_l)
197 #define wxCRT_Tolower_lA wxXLOCALE_IDENT(tolower_l)
198 #define wxCRT_Toupper_lA wxXLOCALE_IDENT(toupper_l)
199
200 inline int wxIsalnum_l(char c, const wxXLocale& loc)
5c33522f 201 { return wxCRT_Isalnum_lA(static_cast<unsigned char>(c), loc.Get()); }
6e4ae332 202 inline int wxIsalpha_l(char c, const wxXLocale& loc)
5c33522f 203 { return wxCRT_Isalpha_lA(static_cast<unsigned char>(c), loc.Get()); }
6e4ae332 204 inline int wxIscntrl_l(char c, const wxXLocale& loc)
5c33522f 205 { return wxCRT_Iscntrl_lA(static_cast<unsigned char>(c), loc.Get()); }
6e4ae332 206 inline int wxIsdigit_l(char c, const wxXLocale& loc)
5c33522f 207 { return wxCRT_Isdigit_lA(static_cast<unsigned char>(c), loc.Get()); }
6e4ae332 208 inline int wxIsgraph_l(char c, const wxXLocale& loc)
5c33522f 209 { return wxCRT_Isgraph_lA(static_cast<unsigned char>(c), loc.Get()); }
6e4ae332 210 inline int wxIslower_l(char c, const wxXLocale& loc)
5c33522f 211 { return wxCRT_Islower_lA(static_cast<unsigned char>(c), loc.Get()); }
6e4ae332 212 inline int wxIsprint_l(char c, const wxXLocale& loc)
5c33522f 213 { return wxCRT_Isprint_lA(static_cast<unsigned char>(c), loc.Get()); }
6e4ae332 214 inline int wxIspunct_l(char c, const wxXLocale& loc)
5c33522f 215 { return wxCRT_Ispunct_lA(static_cast<unsigned char>(c), loc.Get()); }
6e4ae332 216 inline int wxIsspace_l(char c, const wxXLocale& loc)
5c33522f 217 { return wxCRT_Isspace_lA(static_cast<unsigned char>(c), loc.Get()); }
6e4ae332 218 inline int wxIsupper_l(char c, const wxXLocale& loc)
5c33522f 219 { return wxCRT_Isupper_lA(static_cast<unsigned char>(c), loc.Get()); }
6e4ae332 220 inline int wxIsxdigit_l(char c, const wxXLocale& loc)
5c33522f 221 { return wxCRT_Isxdigit_lA(static_cast<unsigned char>(c), loc.Get()); }
ab431d9e 222 inline int wxTolower_l(char c, const wxXLocale& loc)
5c33522f 223 { return wxCRT_Tolower_lA(static_cast<unsigned char>(c), loc.Get()); }
ab431d9e 224 inline int wxToupper_l(char c, const wxXLocale& loc)
5c33522f 225 { return wxCRT_Toupper_lA(static_cast<unsigned char>(c), loc.Get()); }
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226
227 #if wxUSE_UNICODE
228 #define wxCRT_Isalnum_lW wxXLOCALE_IDENT(iswalnum_l)
229 #define wxCRT_Isalpha_lW wxXLOCALE_IDENT(iswalpha_l)
230 #define wxCRT_Iscntrl_lW wxXLOCALE_IDENT(iswcntrl_l)
231 #define wxCRT_Isdigit_lW wxXLOCALE_IDENT(iswdigit_l)
232 #define wxCRT_Isgraph_lW wxXLOCALE_IDENT(iswgraph_l)
233 #define wxCRT_Islower_lW wxXLOCALE_IDENT(iswlower_l)
234 #define wxCRT_Isprint_lW wxXLOCALE_IDENT(iswprint_l)
235 #define wxCRT_Ispunct_lW wxXLOCALE_IDENT(iswpunct_l)
236 #define wxCRT_Isspace_lW wxXLOCALE_IDENT(iswspace_l)
237 #define wxCRT_Isupper_lW wxXLOCALE_IDENT(iswupper_l)
238 #define wxCRT_Isxdigit_lW wxXLOCALE_IDENT(iswxdigit_l)
239 #define wxCRT_Tolower_lW wxXLOCALE_IDENT(towlower_l)
240 #define wxCRT_Toupper_lW wxXLOCALE_IDENT(towupper_l)
241
242 inline int wxIsalnum_l(wchar_t c, const wxXLocale& loc)
243 { return wxCRT_Isalnum_lW(c, loc.Get()); }
244 inline int wxIsalpha_l(wchar_t c, const wxXLocale& loc)
245 { return wxCRT_Isalpha_lW(c, loc.Get()); }
246 inline int wxIscntrl_l(wchar_t c, const wxXLocale& loc)
247 { return wxCRT_Iscntrl_lW(c, loc.Get()); }
248 inline int wxIsdigit_l(wchar_t c, const wxXLocale& loc)
249 { return wxCRT_Isdigit_lW(c, loc.Get()); }
250 inline int wxIsgraph_l(wchar_t c, const wxXLocale& loc)
251 { return wxCRT_Isgraph_lW(c, loc.Get()); }
252 inline int wxIslower_l(wchar_t c, const wxXLocale& loc)
253 { return wxCRT_Islower_lW(c, loc.Get()); }
254 inline int wxIsprint_l(wchar_t c, const wxXLocale& loc)
255 { return wxCRT_Isprint_lW(c, loc.Get()); }
256 inline int wxIspunct_l(wchar_t c, const wxXLocale& loc)
257 { return wxCRT_Ispunct_lW(c, loc.Get()); }
258 inline int wxIsspace_l(wchar_t c, const wxXLocale& loc)
259 { return wxCRT_Isspace_lW(c, loc.Get()); }
260 inline int wxIsupper_l(wchar_t c, const wxXLocale& loc)
261 { return wxCRT_Isupper_lW(c, loc.Get()); }
262 inline int wxIsxdigit_l(wchar_t c, const wxXLocale& loc)
263 { return wxCRT_Isxdigit_lW(c, loc.Get()); }
264 inline wchar_t wxTolower_l(wchar_t c, const wxXLocale& loc)
265 { return wxCRT_Tolower_lW(c, loc.Get()); }
266 inline wchar_t wxToupper_l(wchar_t c, const wxXLocale& loc)
267 { return wxCRT_Toupper_lW(c, loc.Get()); }
268
269 #endif // wxUSE_UNICDE (ctype functions)
270#else // !wxHAS_XLOCALE_SUPPORT
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271 // ctype functions
272 int WXDLLIMPEXP_BASE wxIsalnum_l(const wxUniChar& c, const wxXLocale& loc);
273 int WXDLLIMPEXP_BASE wxIsalpha_l(const wxUniChar& c, const wxXLocale& loc);
274 int WXDLLIMPEXP_BASE wxIscntrl_l(const wxUniChar& c, const wxXLocale& loc);
275 int WXDLLIMPEXP_BASE wxIsdigit_l(const wxUniChar& c, const wxXLocale& loc);
276 int WXDLLIMPEXP_BASE wxIsgraph_l(const wxUniChar& c, const wxXLocale& loc);
277 int WXDLLIMPEXP_BASE wxIslower_l(const wxUniChar& c, const wxXLocale& loc);
278 int WXDLLIMPEXP_BASE wxIsprint_l(const wxUniChar& c, const wxXLocale& loc);
279 int WXDLLIMPEXP_BASE wxIspunct_l(const wxUniChar& c, const wxXLocale& loc);
280 int WXDLLIMPEXP_BASE wxIsspace_l(const wxUniChar& c, const wxXLocale& loc);
281 int WXDLLIMPEXP_BASE wxIsupper_l(const wxUniChar& c, const wxXLocale& loc);
282 int WXDLLIMPEXP_BASE wxIsxdigit_l(const wxUniChar& c, const wxXLocale& loc);
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283 int WXDLLIMPEXP_BASE wxTolower_l(const wxUniChar& c, const wxXLocale& loc);
284 int WXDLLIMPEXP_BASE wxToupper_l(const wxUniChar& c, const wxXLocale& loc);
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285#endif // wxHAS_XLOCALE_SUPPORT/!wxHAS_XLOCALE_SUPPORT
286
287#endif // wxUSE_XLOCALE
288
289#endif // _WX_XLOCALE_H_