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wine-wine/dlls/crtdll/locale.c

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/*
* CRT Locale functions
*
* Copyright 2000 Jon Griffiths
*
* NOTES:
* Currently only LC_CTYPE behaviour is actually implemented.
* Passing a code page only is not yet supported.
*
* The code maps a (potentially incomplete) locale description to
* an LCID. The algorithm enumerates supported locales and
* compares the locale strings to the locale information given.
* Fully qualified locales should be completely compatable.
* Some countries (e.g. US) have synonyms that can be used in
* setlocale() calls - these are mapped to ISO codes before
* searching begins, but I may have missed some out of the list.
*
* It should be noted that the algorithm may locate a valid
* locale from a 2 letter ISO code, while the real DLL won't
* (it requires 3 letter codes or synonyms at a minimum).
* e.g. setlocale(LC_ALL,"de") will return "German_Germany.1252"
* with this implementation, while this fails in win32.
*
* It should also be noted that this implementation follows
* the MSVCRT behaviour, and not the CRTDLL behaviour.
* This is because MSVCRT provides a superset of the CRTDLL
* allowed locales, so this code can be used for both. Also
* The CRTDLL implementation can be considered broken.
*
* The code currently works for isleadbyte() but will fail
* (produce potentially incorrect values) for other locales
* with isalpha() etc. This is because the current Wine
* implementation of GetStringTypeA() is not locale aware.
* Fixing this requires a table of which characters in the
* code page are upper/lower/digit etc. If you locate such
* a table for a supported Wine locale, mail it to me and
* I will add the needed support (jon_p_griffiths@yahoo.com).
*/
#include "crtdll.h"
#include "winnt.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
DEFAULT_DEBUG_CHANNEL(crtdll);
#define MAX_ELEM_LEN 64 /* Max length of country/language/CP string */
#define MAX_LOCALE_LENGTH 256
/* FIXME: Need to hold locale for each LC_* type and aggregate
* string to produce lc_all.
*/
char __CRTDLL_current_lc_all[MAX_LOCALE_LENGTH];
LCID __CRTDLL_current_lc_all_lcid;
UINT __CRTDLL_current_lc_all_cp;
/* Friendly country strings & iso codes for synonym support.
* Based on MS documentation for setlocale().
*/
static const char* _country_synonyms[] =
{
"Hong Kong","HK",
"Hong-Kong","HK",
"New Zealand","NZ",
"New-Zealand","NZ",
"PR China","CN",
"PR-China","CN",
"United Kingdom","GB",
"United-Kingdom","GB",
"Britain","GB",
"England","GB",
"Great Britain","GB",
"United States","US",
"United-States","US",
"America","US"
};
/* INTERNAL: Map a synonym to an ISO code */
static void remap_synonym(char *name)
{
size_t i;
for (i = 0; i < sizeof(_country_synonyms)/sizeof(char*); i += 2 )
{
if (!strcasecmp(_country_synonyms[i],name))
{
TRACE(":Mapping synonym %s to %s\n",name,_country_synonyms[i+1]);
name[0] = _country_synonyms[i+1][0];
name[1] = _country_synonyms[i+1][1];
name[2] = '\0';
return;
}
}
}
/* Note: Flags are weighted in order of matching importance */
#define FOUND_LANGUAGE 0x4
#define FOUND_COUNTRY 0x2
#define FOUND_CODEPAGE 0x1
typedef struct {
char search_language[MAX_ELEM_LEN];
char search_country[MAX_ELEM_LEN];
char search_codepage[MAX_ELEM_LEN];
char found_language[MAX_ELEM_LEN];
char found_country[MAX_ELEM_LEN];
char found_codepage[MAX_ELEM_LEN];
unsigned int match_flags;
LANGID found_lang_id;
} locale_search_t;
#define CONTINUE_LOOKING TRUE
#define STOP_LOOKING FALSE
/* INTERNAL: Get and compare locale info with a given string */
static int compare_info(LCID lcid, DWORD flags, char* buff, const char* cmp)
{
buff[0] = 0;
GetLocaleInfoA(lcid, flags|LOCALE_NOUSEROVERRIDE,buff, MAX_ELEM_LEN);
if (!buff[0] || !cmp[0])
return 0;
/* Partial matches are allowed, e.g. "Germ" matches "Germany" */
return !strncasecmp(cmp, buff, strlen(cmp));
}
/* INTERNAL: Callback for enumerated languages */
static BOOL CALLBACK
find_best_locale_proc(HMODULE hModule, LPCSTR type,
LPCSTR name, WORD LangID, LONG lParam)
{
locale_search_t *res = (locale_search_t *)lParam;
const LCID lcid = MAKELCID(LangID, SORT_DEFAULT);
char buff[MAX_ELEM_LEN];
unsigned int flags = 0;
if(PRIMARYLANGID(LangID) == LANG_NEUTRAL)
return CONTINUE_LOOKING;
/* Check Language */
if (compare_info(lcid,LOCALE_SISO639LANGNAME,buff,res->search_language) ||
compare_info(lcid,LOCALE_SABBREVLANGNAME,buff,res->search_language) ||
compare_info(lcid,LOCALE_SENGLANGUAGE,buff,res->search_language))
{
TRACE(":Found language: %s->%s\n", res->search_language, buff);
flags |= FOUND_LANGUAGE;
memcpy(res->found_language,res->search_language,MAX_ELEM_LEN);
}
else if (res->match_flags & FOUND_LANGUAGE)
{
return CONTINUE_LOOKING;
}
/* Check Country */
if (compare_info(lcid,LOCALE_SISO3166CTRYNAME,buff,res->search_country) ||
compare_info(lcid,LOCALE_SABBREVCTRYNAME,buff,res->search_country) ||
compare_info(lcid,LOCALE_SENGCOUNTRY,buff,res->search_country))
{
TRACE("Found country:%s->%s\n", res->search_country, buff);
flags |= FOUND_COUNTRY;
memcpy(res->found_country,res->search_country,MAX_ELEM_LEN);
}
else if (res->match_flags & FOUND_COUNTRY)
{
return CONTINUE_LOOKING;
}
/* Check codepage */
if (compare_info(lcid,LOCALE_IDEFAULTCODEPAGE,buff,res->search_codepage) ||
(compare_info(lcid,LOCALE_IDEFAULTANSICODEPAGE,buff,res->search_codepage)))
{
TRACE("Found codepage:%s->%s\n", res->search_codepage, buff);
flags |= FOUND_CODEPAGE;
memcpy(res->found_codepage,res->search_codepage,MAX_ELEM_LEN);
}
else if (res->match_flags & FOUND_CODEPAGE)
{
return CONTINUE_LOOKING;
}
if (flags > res->match_flags)
{
/* Found a better match than previously */
res->match_flags = flags;
res->found_lang_id = LangID;
}
if (flags & (FOUND_LANGUAGE & FOUND_COUNTRY & FOUND_CODEPAGE))
{
TRACE(":found exact locale match\n");
return STOP_LOOKING;
}
return CONTINUE_LOOKING;
}
/* Internal: Find the LCID for a locale specification */
static LCID __CRTDLL_locale_to_LCID(locale_search_t* locale)
{
LCID lcid;
EnumResourceLanguagesA(GetModuleHandleA("KERNEL32"), RT_STRINGA,
(LPCSTR)LOCALE_ILANGUAGE,find_best_locale_proc,
(LONG)locale);
if (!locale->match_flags)
return 0;
/* If we were given something that didn't match, fail */
if (locale->search_country[0] && !(locale->match_flags & FOUND_COUNTRY))
return 0;
lcid = MAKELCID(locale->found_lang_id, SORT_DEFAULT);
/* Populate partial locale, translating LCID to locale string elements */
if (!locale->found_codepage[0])
{
/* Even if a codepage is not enumerated for a locale
* it can be set if valid */
if (locale->search_codepage[0])
{
if (IsValidCodePage(atoi(locale->search_codepage)))
memcpy(locale->found_codepage,locale->search_codepage,MAX_ELEM_LEN);
else
{
/* Special codepage values: OEM & ANSI */
if (strcasecmp(locale->search_codepage,"OCP"))
{
GetLocaleInfoA(lcid, LOCALE_IDEFAULTCODEPAGE,
locale->found_codepage, MAX_ELEM_LEN);
}
if (strcasecmp(locale->search_codepage,"ACP"))
{
GetLocaleInfoA(lcid, LOCALE_IDEFAULTANSICODEPAGE,
locale->found_codepage, MAX_ELEM_LEN);
}
else
return 0;
if (!atoi(locale->found_codepage))
return 0;
}
}
else
{
/* Prefer ANSI codepages if present */
GetLocaleInfoA(lcid, LOCALE_IDEFAULTANSICODEPAGE,
locale->found_codepage, MAX_ELEM_LEN);
if (!locale->found_codepage[0] || !atoi(locale->found_codepage))
GetLocaleInfoA(lcid, LOCALE_IDEFAULTCODEPAGE,
locale->found_codepage, MAX_ELEM_LEN);
}
}
GetLocaleInfoA(lcid, LOCALE_SENGLANGUAGE|LOCALE_NOUSEROVERRIDE,
locale->found_language, MAX_ELEM_LEN);
GetLocaleInfoA(lcid, LOCALE_SENGCOUNTRY|LOCALE_NOUSEROVERRIDE,
locale->found_country, MAX_ELEM_LEN);
return lcid;
}
/* INTERNAL: Set ctype behaviour for a codepage */
static void __CRTDLL_set_ctype(UINT codepage, LCID lcid)
{
CPINFO cp;
memset(&cp, 0, sizeof(CPINFO));
if (GetCPInfo(codepage, &cp))
{
int i;
char str[3];
unsigned char *traverse = (unsigned char *)cp.LeadByte;
memset(__CRTDLL_current_ctype, 0, sizeof(CRTDLL_ctype));
__CRTDLL_current_lc_all_cp = codepage;
/* Switch ctype macros to MBCS if needed */
CRTDLL__mb_cur_max_dll = cp.MaxCharSize;
/* Set remaining ctype flags: FIXME: faster way to do this? */
str[1] = str[2] = 0;
for (i = 0; i < 256; i++)
{
if (!(CRTDLL_pctype_dll[i] & CRTDLL_LEADBYTE))
{
str[0] = i;
GetStringTypeA(lcid, CT_CTYPE1, str, 1, CRTDLL_pctype_dll + i);
}
}
/* Set leadbyte flags */
while (traverse[0] || traverse[1])
{
for( i = traverse[0]; i <= traverse[1]; i++ )
__CRTDLL_current_ctype[i+1] |= CRTDLL_LEADBYTE;
traverse += 2;
};
}
}
/*********************************************************************
* setlocale (CRTDLL.453)
*/
LPSTR __cdecl CRTDLL_setlocale(INT category, LPCSTR locale)
{
LCID lcid = 0;
locale_search_t lc;
int haveLang, haveCountry, haveCP;
char* next;
int lc_all = 0;
if (category < CRTDLL_LC_MIN || category > CRTDLL_LC_MAX)
return NULL;
if (locale == NULL)
{
/* Report the current Locale */
return __CRTDLL_current_lc_all;
}
if (locale[0] == 'L' && locale[1] == 'C' && locale[2] == '_')
{
FIXME(":restore previous locale not implemented!\n");
/* FIXME: Easiest way to do this is parse the string and
* call this function recursively with its elements,
* Where they differ for each lc_ type.
*/
return __CRTDLL_current_lc_all;
}
/* Default Locale: Special case handling */
if (!strlen(locale) || ((toupper(locale[0]) == 'C') && !locale[1]))
{
__CRTDLL_current_lc_all[0] = 'C';
__CRTDLL_current_lc_all[1] = '\0';
__CRTDLL_current_lc_all_cp = GetACP();
switch (category) {
case CRTDLL_LC_ALL:
lc_all = 1; /* Fall through all cases ... */
case CRTDLL_LC_COLLATE:
if (!lc_all) break;
case CRTDLL_LC_CTYPE:
/* Restore C locale ctype info */
CRTDLL__mb_cur_max_dll = 1;
memcpy(__CRTDLL_current_ctype, CRTDLL_ctype, sizeof(CRTDLL_ctype));
memset(CRTDLL_mbctype, 0, sizeof(CRTDLL_mbctype));
if (!lc_all) break;
case CRTDLL_LC_MONETARY:
if (!lc_all) break;
case CRTDLL_LC_NUMERIC:
if (!lc_all) break;
case CRTDLL_LC_TIME:
}
return __CRTDLL_current_lc_all;
}
/* Get locale elements */
haveLang = haveCountry = haveCP = 0;
memset(&lc,0,sizeof(lc));
next = strchr(locale,'_');
if (next && next != locale)
{
haveLang = 1;
strncpy(lc.search_language,locale,next-locale);
locale += next-locale+1;
}
next = strchr(locale,'.');
if (next)
{
haveCP = 1;
if (next == locale)
{
locale++;
strncpy(lc.search_codepage, locale, MAX_ELEM_LEN);
}
else
{
if (haveLang)
{
haveCountry = 1;
strncpy(lc.search_country,locale,next-locale);
locale += next-locale+1;
}
else
{
haveLang = 1;
strncpy(lc.search_language,locale,next-locale);
locale += next-locale+1;
}
strncpy(lc.search_codepage, locale, MAX_ELEM_LEN);
}
}
else
{
if (haveLang)
{
haveCountry = 1;
strncpy(lc.search_country, locale, MAX_ELEM_LEN);
}
else
{
haveLang = 1;
strncpy(lc.search_language, locale, MAX_ELEM_LEN);
}
}
if (haveCountry)
remap_synonym(lc.search_country);
if (haveCP && !haveCountry && !haveLang)
{
FIXME(":Codepage only locale not implemented");
/* FIXME: Use default lang/country and skip locale_to_LCID()
* call below...
*/
return NULL;
}
lcid = __CRTDLL_locale_to_LCID(&lc);
TRACE(":found LCID %ld\n",lcid);
if (lcid == 0)
return NULL;
__CRTDLL_current_lc_all_lcid = lcid;
snprintf(__CRTDLL_current_lc_all,MAX_LOCALE_LENGTH,"%s_%s.%s",
lc.found_language,lc.found_country,lc.found_codepage);
switch (category) {
case CRTDLL_LC_ALL:
lc_all = 1; /* Fall through all cases ... */
case CRTDLL_LC_COLLATE:
if (!lc_all) break;
case CRTDLL_LC_CTYPE:
__CRTDLL_set_ctype(atoi(lc.found_codepage),lcid);
if (!lc_all) break;
break;
case CRTDLL_LC_MONETARY:
if (!lc_all) break;
case CRTDLL_LC_NUMERIC:
if (!lc_all) break;
case CRTDLL_LC_TIME:
}
return __CRTDLL_current_lc_all;
}
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