diff options
Diffstat (limited to 'intl/langprefs.c')
| -rw-r--r-- | intl/langprefs.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/intl/langprefs.c b/intl/langprefs.c new file mode 100644 index 00000000..59c8def2 --- /dev/null +++ b/intl/langprefs.c @@ -0,0 +1,130 @@ +/* Determine the user's language preferences. + Copyright (C) 2004-2006 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify it + under the terms of the GNU Library General Public License as published + by the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, + USA. */ + +/* Written by Bruno Haible <bruno@clisp.org>. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <stdlib.h> + +#if HAVE_CFPREFERENCESCOPYAPPVALUE +# include <string.h> +# include <CoreFoundation/CFPreferences.h> +# include <CoreFoundation/CFPropertyList.h> +# include <CoreFoundation/CFArray.h> +# include <CoreFoundation/CFString.h> +extern void _nl_locale_name_canonicalize (char *name); +#endif + +/* Determine the user's language preferences, as a colon separated list of + locale names in XPG syntax + language[_territory][.codeset][@modifier] + The result must not be freed; it is statically allocated. + The LANGUAGE environment variable does not need to be considered; it is + already taken into account by the caller. */ + +const char * +_nl_language_preferences_default (void) +{ +#if HAVE_CFPREFERENCESCOPYAPPVALUE /* MacOS X 10.2 or newer */ + { + /* Cache the preferences list, since CoreFoundation calls are expensive. */ + static const char *cached_languages; + static int cache_initialized; + + if (!cache_initialized) + { + CFTypeRef preferences = + CFPreferencesCopyAppValue (CFSTR ("AppleLanguages"), + kCFPreferencesCurrentApplication); + if (preferences != NULL + && CFGetTypeID (preferences) == CFArrayGetTypeID ()) + { + CFArrayRef prefArray = (CFArrayRef)preferences; + int n = CFArrayGetCount (prefArray); + char buf[256]; + size_t size = 0; + int i; + + for (i = 0; i < n; i++) + { + CFTypeRef element = CFArrayGetValueAtIndex (prefArray, i); + if (element != NULL + && CFGetTypeID (element) == CFStringGetTypeID () + && CFStringGetCString ((CFStringRef)element, + buf, sizeof (buf), + kCFStringEncodingASCII)) + { + _nl_locale_name_canonicalize (buf); + size += strlen (buf) + 1; + /* Most GNU programs use msgids in English and don't ship + an en.mo message catalog. Therefore when we see "en" + in the preferences list, arrange for gettext() to + return the msgid, and ignore all further elements of + the preferences list. */ + if (strcmp (buf, "en") == 0) + break; + } + else + break; + } + if (size > 0) + { + char *languages = (char *) malloc (size); + + if (languages != NULL) + { + char *p = languages; + + for (i = 0; i < n; i++) + { + CFTypeRef element = + CFArrayGetValueAtIndex (prefArray, i); + if (element != NULL + && CFGetTypeID (element) == CFStringGetTypeID () + && CFStringGetCString ((CFStringRef)element, + buf, sizeof (buf), + kCFStringEncodingASCII)) + { + _nl_locale_name_canonicalize (buf); + strcpy (p, buf); + p += strlen (buf); + *p++ = ':'; + if (strcmp (buf, "en") == 0) + break; + } + else + break; + } + *--p = '\0'; + + cached_languages = languages; + } + } + } + cache_initialized = 1; + } + if (cached_languages != NULL) + return cached_languages; + } +#endif + + return NULL; +} |