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kernelbase: Reimplement IsValidLocale() using the locale.nls data. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2022-03-24 16:49:43 +01:00
parent da125003e6
commit 0263494bec
1 changed files with 67 additions and 3 deletions
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70
dlls/kernelbase/locale.c
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@ -580,6 +580,8 @@ static const NLS_LOCALE_LCID_INDEX *lcids_index;
static const NLS_LOCALE_LCNAME_INDEX *lcnames_index;
static const NLS_LOCALE_HEADER *locale_table;
static const WCHAR *locale_strings;
static const NLS_LOCALE_DATA *system_locale;
static const NLS_LOCALE_DATA *user_locale;
static CPTABLEINFO codepages[128];
static unsigned int nb_codepages;
@ -729,6 +731,13 @@ done:
}
static const NLS_LOCALE_DATA *get_locale_data( UINT idx )
{
ULONG offset = locale_table->locales_offset + idx * locale_table->locale_size;
return (const NLS_LOCALE_DATA *)((const char *)locale_table + offset);
}
static int compare_locale_names( const WCHAR *n1, const WCHAR *n2 )
{
for (;;)
@ -761,6 +770,61 @@ static const NLS_LOCALE_LCNAME_INDEX *find_lcname_entry( const WCHAR *name )
}
static const NLS_LOCALE_LCID_INDEX *find_lcid_entry( LCID lcid )
{
int min = 0, max = locale_table->nb_lcids - 1;
while (min <= max)
{
int pos = (min + max) / 2;
if (lcid < lcids_index[pos].id) max = pos - 1;
else if (lcid > lcids_index[pos].id) min = pos + 1;
else return &lcids_index[pos];
}
return NULL;
}
static const NLS_LOCALE_DATA *get_locale_by_name( const WCHAR *name, LCID *lcid )
{
const NLS_LOCALE_LCNAME_INDEX *entry;
if (name == LOCALE_NAME_USER_DEFAULT)
{
*lcid = user_lcid;
return user_locale;
}
if (!(entry = find_lcname_entry( name ))) return NULL;
*lcid = entry->id;
return get_locale_data( entry->idx );
}
static const NLS_LOCALE_DATA *get_locale_by_id( LCID *lcid, DWORD flags )
{
const NLS_LOCALE_LCID_INDEX *entry;
const NLS_LOCALE_DATA *locale;
switch (*lcid)
{
case LOCALE_SYSTEM_DEFAULT:
*lcid = system_lcid;
return system_locale;
case LOCALE_NEUTRAL:
case LOCALE_USER_DEFAULT:
case LOCALE_CUSTOM_DEFAULT:
*lcid = user_lcid;
return user_locale;
default:
if (!(entry = find_lcid_entry( *lcid ))) return NULL;
locale = get_locale_data( entry->idx );
if (!(flags & LOCALE_ALLOW_NEUTRAL_NAMES) && !locale->inotneutral)
locale = get_locale_by_name( locale_strings + locale->ssortlocale + 1, lcid );
return locale;
}
}
/***********************************************************************
* init_locale
*/
@ -779,6 +843,8 @@ void init_locale(void)
load_locale_nls();
NtQueryDefaultLocale( FALSE, &system_lcid );
NtQueryDefaultLocale( FALSE, &user_lcid );
system_locale = get_locale_by_id( &system_lcid, 0 );
user_locale = get_locale_by_id( &user_lcid, 0 );
if (GetEnvironmentVariableW( L"WINEUNIXCP", bufferW, ARRAY_SIZE(bufferW) ))
unix_cp = wcstoul( bufferW, NULL, 10 );
@ -5211,9 +5277,7 @@ BOOL WINAPI DECLSPEC_HOTPATCH IsValidLanguageGroup( LGRPID id, DWORD flags )
*/
BOOL WINAPI DECLSPEC_HOTPATCH IsValidLocale( LCID lcid, DWORD flags )
{
/* check if language is registered in the kernel32 resources */
return FindResourceExW( kernel32_handle, (LPWSTR)RT_STRING,
ULongToPtr( (LOCALE_ILANGUAGE >> 4) + 1 ), LANGIDFROMLCID(lcid)) != 0;
return !!get_locale_by_id( &lcid, LOCALE_ALLOW_NEUTRAL_NAMES );
}