4 * Copyright 2000 Jon Griffiths
7 * Currently only LC_CTYPE behaviour is actually implemented.
8 * Passing a code page only is not yet supported.
10 * The code maps a (potentially incomplete) locale description to
11 * an LCID. The algorithm enumerates supported locales and
12 * compares the locale strings to the locale information given.
13 * Fully qualified locales should be completely compatable.
14 * Some countries (e.g. US) have synonyms that can be used in
15 * setlocale() calls - these are mapped to ISO codes before
16 * searching begins, but I may have missed some out of the list.
18 * It should be noted that the algorithm may locate a valid
19 * locale from a 2 letter ISO code, while the real DLL won't
20 * (it requires 3 letter codes or synonyms at a minimum).
21 * e.g. setlocale(LC_ALL,"de") will return "German_Germany.1252"
22 * with this implementation, while this fails in win32.
24 * It should also be noted that this implementation follows
25 * the MSVCRT behaviour, and not the CRTDLL behaviour.
26 * This is because MSVCRT provides a superset of the CRTDLL
27 * allowed locales, so this code can be used for both. Also
28 * The CRTDLL implementation can be considered broken.
30 * The code currently works for isleadbyte() but will fail
31 * (produce potentially incorrect values) for other locales
32 * with isalpha() etc. This is because the current Wine
33 * implementation of GetStringTypeA() is not locale aware.
34 * Fixing this requires a table of which characters in the
35 * code page are upper/lower/digit etc. If you locate such
36 * a table for a supported Wine locale, mail it to me and
37 * I will add the needed support (jon_p_griffiths@yahoo.com).
45 DEFAULT_DEBUG_CHANNEL(crtdll
);
47 #define MAX_ELEM_LEN 64 /* Max length of country/language/CP string */
48 #define MAX_LOCALE_LENGTH 256
50 /* FIXME: Need to hold locale for each LC_* type and aggregate
51 * string to produce lc_all.
53 char __CRTDLL_current_lc_all
[MAX_LOCALE_LENGTH
];
54 LCID __CRTDLL_current_lc_all_lcid
;
56 /* Friendly country strings & iso codes for synonym support.
57 * Based on MS documentation for setlocale().
59 static const char* _country_synonyms
[] =
67 "United Kingdom","GB",
68 "United-Kingdom","GB",
77 /* INTERNAL: Map a synonym to an ISO code */
78 static void remap_synonym(char *name
)
81 for (i
= 0; i
< sizeof(_country_synonyms
)/sizeof(char*); i
+= 2 )
83 if (!strcasecmp(_country_synonyms
[i
],name
))
85 TRACE(":Mapping synonym %s to %s\n",name
,_country_synonyms
[i
+1]);
86 name
[0] = _country_synonyms
[i
+1][0];
87 name
[1] = _country_synonyms
[i
+1][1];
94 /* Note: Flags are weighted in order of matching importance */
95 #define FOUND_LANGUAGE 0x4
96 #define FOUND_COUNTRY 0x2
97 #define FOUND_CODEPAGE 0x1
100 char search_language
[MAX_ELEM_LEN
];
101 char search_country
[MAX_ELEM_LEN
];
102 char search_codepage
[MAX_ELEM_LEN
];
103 char found_language
[MAX_ELEM_LEN
];
104 char found_country
[MAX_ELEM_LEN
];
105 char found_codepage
[MAX_ELEM_LEN
];
106 unsigned int match_flags
;
107 LANGID found_lang_id
;
110 #define CONTINUE_LOOKING TRUE
111 #define STOP_LOOKING FALSE
113 /* INTERNAL: Get and compare locale info with a given string */
114 static int compare_info(LCID lcid
, DWORD flags
, char* buff
, const char* cmp
)
117 GetLocaleInfoA(lcid
, flags
|LOCALE_NOUSEROVERRIDE
,buff
, MAX_ELEM_LEN
);
118 if (!buff
[0] || !cmp
[0])
120 /* Partial matches are allowed, e.g. "Germ" matches "Germany" */
121 return !strncasecmp(cmp
, buff
, strlen(cmp
));
125 /* INTERNAL: Callback for enumerated languages */
127 find_best_locale_proc(HMODULE hModule
, LPCSTR type
,
128 LPCSTR name
, WORD LangID
, LONG lParam
)
130 locale_search_t
*res
= (locale_search_t
*)lParam
;
131 const LCID lcid
= MAKELCID(LangID
, SORT_DEFAULT
);
132 char buff
[MAX_ELEM_LEN
];
133 unsigned int flags
= 0;
135 if(PRIMARYLANGID(LangID
) == LANG_NEUTRAL
)
136 return CONTINUE_LOOKING
;
139 if (compare_info(lcid
,LOCALE_SISO639LANGNAME
,buff
,res
->search_language
) ||
140 compare_info(lcid
,LOCALE_SABBREVLANGNAME
,buff
,res
->search_language
) ||
141 compare_info(lcid
,LOCALE_SENGLANGUAGE
,buff
,res
->search_language
))
143 TRACE(":Found language: %s->%s\n", res
->search_language
, buff
);
144 flags
|= FOUND_LANGUAGE
;
145 memcpy(res
->found_language
,res
->search_language
,MAX_ELEM_LEN
);
147 else if (res
->match_flags
& FOUND_LANGUAGE
)
149 return CONTINUE_LOOKING
;
153 if (compare_info(lcid
,LOCALE_SISO3166CTRYNAME
,buff
,res
->search_country
) ||
154 compare_info(lcid
,LOCALE_SABBREVCTRYNAME
,buff
,res
->search_country
) ||
155 compare_info(lcid
,LOCALE_SENGCOUNTRY
,buff
,res
->search_country
))
157 TRACE("Found country:%s->%s\n", res
->search_country
, buff
);
158 flags
|= FOUND_COUNTRY
;
159 memcpy(res
->found_country
,res
->search_country
,MAX_ELEM_LEN
);
161 else if (res
->match_flags
& FOUND_COUNTRY
)
163 return CONTINUE_LOOKING
;
167 if (compare_info(lcid
,LOCALE_IDEFAULTCODEPAGE
,buff
,res
->search_codepage
) ||
168 (compare_info(lcid
,LOCALE_IDEFAULTANSICODEPAGE
,buff
,res
->search_codepage
)))
170 TRACE("Found codepage:%s->%s\n", res
->search_codepage
, buff
);
171 flags
|= FOUND_CODEPAGE
;
172 memcpy(res
->found_codepage
,res
->search_codepage
,MAX_ELEM_LEN
);
174 else if (res
->match_flags
& FOUND_CODEPAGE
)
176 return CONTINUE_LOOKING
;
179 if (flags
> res
->match_flags
)
181 /* Found a better match than previously */
182 res
->match_flags
= flags
;
183 res
->found_lang_id
= LangID
;
185 if (flags
& (FOUND_LANGUAGE
& FOUND_COUNTRY
& FOUND_CODEPAGE
))
187 TRACE(":found exact locale match\n");
190 return CONTINUE_LOOKING
;
193 /* Internal: Find the LCID for a locale specification */
194 static LCID
__CRTDLL_locale_to_LCID(locale_search_t
* locale
)
197 EnumResourceLanguagesA(GetModuleHandleA("KERNEL32"), RT_STRINGA
,
198 (LPCSTR
)LOCALE_ILANGUAGE
,find_best_locale_proc
,
201 if (!locale
->match_flags
)
204 /* If we were given something that didn't match, fail */
205 if (locale
->search_country
[0] && !(locale
->match_flags
& FOUND_COUNTRY
))
208 lcid
= MAKELCID(locale
->found_lang_id
, SORT_DEFAULT
);
210 /* Populate partial locale, translating LCID to locale string elements */
211 if (!locale
->found_codepage
[0])
213 /* Even if a codepage is not enumerated for a locale
214 * it can be set if valid */
215 if (locale
->search_codepage
[0])
217 if (IsValidCodePage(atoi(locale
->search_codepage
)))
218 memcpy(locale
->found_codepage
,locale
->search_codepage
,MAX_ELEM_LEN
);
221 /* Special codepage values: OEM & ANSI */
222 if (strcasecmp(locale
->search_codepage
,"OCP"))
224 GetLocaleInfoA(lcid
, LOCALE_IDEFAULTCODEPAGE
,
225 locale
->found_codepage
, MAX_ELEM_LEN
);
227 if (strcasecmp(locale
->search_codepage
,"ACP"))
229 GetLocaleInfoA(lcid
, LOCALE_IDEFAULTANSICODEPAGE
,
230 locale
->found_codepage
, MAX_ELEM_LEN
);
235 if (!atoi(locale
->found_codepage
))
241 /* Prefer ANSI codepages if present */
242 GetLocaleInfoA(lcid
, LOCALE_IDEFAULTANSICODEPAGE
,
243 locale
->found_codepage
, MAX_ELEM_LEN
);
244 if (!locale
->found_codepage
[0] || !atoi(locale
->found_codepage
))
245 GetLocaleInfoA(lcid
, LOCALE_IDEFAULTCODEPAGE
,
246 locale
->found_codepage
, MAX_ELEM_LEN
);
249 GetLocaleInfoA(lcid
, LOCALE_SENGLANGUAGE
|LOCALE_NOUSEROVERRIDE
,
250 locale
->found_language
, MAX_ELEM_LEN
);
251 GetLocaleInfoA(lcid
, LOCALE_SENGCOUNTRY
|LOCALE_NOUSEROVERRIDE
,
252 locale
->found_country
, MAX_ELEM_LEN
);
257 /* INTERNAL: Set ctype behaviour for a codepage */
258 static void __CRTDLL_set_ctype(UINT codepage
, LCID lcid
)
262 memset(&cp
, 0, sizeof(CPINFO
));
264 if (GetCPInfo(codepage
, &cp
))
268 unsigned char *traverse
= (unsigned char *)cp
.LeadByte
;
270 memset(__CRTDLL_current_ctype
, 0, sizeof(CRTDLL_ctype
));
272 /* Switch ctype macros to MBCS if needed */
273 CRTDLL__mb_cur_max_dll
= cp
.MaxCharSize
;
275 /* Set remaining ctype flags: FIXME: faster way to do this? */
277 for (i
= 0; i
< 256; i
++)
279 if (!(CRTDLL_pctype_dll
[i
] & CRTDLL_LEADBYTE
))
282 GetStringTypeA(lcid
, CT_CTYPE1
, str
, 1, CRTDLL_pctype_dll
+ i
);
286 /* Set leadbyte flags */
287 while (traverse
[0] || traverse
[1])
289 for( i
= traverse
[0]; i
<= traverse
[1]; i
++ )
290 __CRTDLL_current_ctype
[i
+1] |= CRTDLL_LEADBYTE
;
297 /*********************************************************************
298 * setlocale (CRTDLL.453)
300 LPSTR __cdecl
CRTDLL_setlocale(INT category
, LPCSTR locale
)
304 int haveLang
, haveCountry
, haveCP
;
308 if (category
< CRTDLL_LC_MIN
|| category
> CRTDLL_LC_MAX
)
313 /* Report the current Locale */
314 return __CRTDLL_current_lc_all
;
317 if (locale
[0] == 'L' && locale
[1] == 'C' && locale
[2] == '_')
319 FIXME(":restore previous locale not implemented!\n");
320 /* FIXME: Easiest way to do this is parse the string and
321 * call this function recursively with its elements,
322 * Where they differ for each lc_ type.
324 return __CRTDLL_current_lc_all
;
327 /* Default Locale: Special case handling */
328 if (!strlen(locale
) || ((toupper(locale
[0]) == 'C') && !locale
[1]))
330 if ((toupper(__CRTDLL_current_lc_all
[0]) != 'C')
331 || __CRTDLL_current_lc_all
[1])
333 __CRTDLL_current_lc_all
[0] = 'C';
334 __CRTDLL_current_lc_all
[1] = 0;
337 lc_all
= 1; /* Fall through all cases ... */
338 case CRTDLL_LC_COLLATE
:
340 case CRTDLL_LC_CTYPE
:
341 /* Restore C locale ctype info */
342 CRTDLL__mb_cur_max_dll
= 1;
343 memcpy(__CRTDLL_current_ctype
, CRTDLL_ctype
, sizeof(CRTDLL_ctype
));
345 case CRTDLL_LC_MONETARY
:
347 case CRTDLL_LC_NUMERIC
:
351 return __CRTDLL_current_lc_all
;
355 /* Get locale elements */
356 haveLang
= haveCountry
= haveCP
= 0;
357 memset(&lc
,0,sizeof(lc
));
359 next
= strchr(locale
,'_');
360 if (next
&& next
!= locale
)
363 strncpy(lc
.search_language
,locale
,next
-locale
);
364 locale
+= next
-locale
+1;
367 next
= strchr(locale
,'.');
374 strncpy(lc
.search_codepage
, locale
, MAX_ELEM_LEN
);
381 strncpy(lc
.search_country
,locale
,next
-locale
);
382 locale
+= next
-locale
+1;
387 strncpy(lc
.search_language
,locale
,next
-locale
);
388 locale
+= next
-locale
+1;
390 strncpy(lc
.search_codepage
, locale
, MAX_ELEM_LEN
);
398 strncpy(lc
.search_country
, locale
, MAX_ELEM_LEN
);
403 strncpy(lc
.search_language
, locale
, MAX_ELEM_LEN
);
408 remap_synonym(lc
.search_country
);
410 if (haveCP
&& !haveCountry
&& !haveLang
)
412 FIXME(":Codepage only locale not implemented");
413 /* FIXME: Use default lang/country and skip locale_to_LCID()
419 lcid
= __CRTDLL_locale_to_LCID(&lc
);
421 TRACE(":found LCID %ld\n",lcid
);
426 __CRTDLL_current_lc_all_lcid
= lcid
;
428 snprintf(__CRTDLL_current_lc_all
,MAX_LOCALE_LENGTH
,"%s_%s.%s",
429 lc
.found_language
,lc
.found_country
,lc
.found_codepage
);
433 lc_all
= 1; /* Fall through all cases ... */
434 case CRTDLL_LC_COLLATE
:
436 case CRTDLL_LC_CTYPE
:
437 __CRTDLL_set_ctype(atoi(lc
.found_codepage
),lcid
);
440 case CRTDLL_LC_MONETARY
:
442 case CRTDLL_LC_NUMERIC
:
446 return __CRTDLL_current_lc_all
;