/**
* enca_language_init:
* @analyser: Analyzer state to be initialized for this language.
* @langname: Two-letter ISO-639 language code.
*
* Initializes analyser for language @langname.
*
* Assumes @analyser is unitinialized, calling with an initialized @analyser
* leads to memory leak.
*
* Returns: Nonzero on success, zero otherwise.
**/
int
enca_language_init(EncaAnalyserState *analyser,
const char *langname)
{
const EncaLanguageInfo *lang;
assert(langname != NULL);
analyser->lang = NULL;
analyser->ncharsets = 0;
analyser->charsets = NULL;
analyser->lcbits = NULL;
analyser->ucbits = NULL;
lang = find_language(langname);
if (lang == NULL)
return 0;
analyser->lang = lang;
if (lang->ncharsets == 0)
return 1;
analyser->ncharsets = lang->ncharsets;
analyser->charsets = language_charsets_ids(lang);
return 1;
}
static bool
ReadResourceLanguageFile(const TCHAR *resource)
{
if (!find_language(resource))
/* refuse to load resources which are not in the language table */
return false;
LogStartUp(_T("Language: loading resource '%s'"), resource);
// Load resource
ResourceLoader::Data data = ResourceLoader::Load(resource, _T("MO"));
if (data.first == NULL) {
LogStartUp(_T("Language: resource '%s' not found"), resource);
return false;
}
// Load MO file from resource
delete mo_loader;
mo_loader = new MOLoader(data.first, data.second);
if (mo_loader->error()) {
LogStartUp(_T("Language: could not load resource '%s'"), resource);
delete mo_loader;
mo_loader = NULL;
return false;
}
LogStartUp(_T("Loaded translations from resource '%s'"), resource);
mo_file = &mo_loader->get();
return true;
}
/**
* enca_language_english_name:
* @lang: A two-letter language code, such as obtained from
* enca_analyser_language() or enca_get_languages().
*
* Returns an English name of a language given its ISO-639 code.
*
* The returned string must be considered constant and must NOT be freed.
*
* Returns: The English language name.
**/
const char*
enca_language_english_name(const char *lang)
{
const EncaLanguageInfo *linfo;
linfo = find_language(lang);
if (!linfo)
return NULL;
return linfo->humanname;
}
/**
* enca_get_language_charsets:
* @langname: Two-letter ISO-639 language code.
* @n: The number of charsets will be stored here.
*
* Returns list of identifiers of charsets supported for language @language.
*
* The list of charset identifiers has to be freed by caller.
*
* Returns: The list of charsets, storing their number into *@n. When language
* contains no charsets or @langname is invalid, #NULL is returned
* and zero stored into *@n.
**/
int*
enca_get_language_charsets(const char *langname,
size_t *n)
{
const EncaLanguageInfo *lang;
assert(langname != NULL);
lang = find_language(langname);
if (lang == NULL) {
*n = 0;
return NULL;
}
*n = lang->ncharsets;
return language_charsets_ids(lang);
}
static unsigned
AutoDetect()
{
#ifndef HAVE_POSIX
#if defined(_WIN32_WCE)
/* the GetUserDefaultUILanguage() prototype is missing on
mingw32ce, we have to look it up dynamically */
DynamicLibrary coreloc_dll(_T("coredll"));
if (!coreloc_dll.defined()) {
LogStartUp(_T("Units: coredll.dll not found"));
return 0;
}
typedef LANGID WINAPI (*GetUserDefaultUILanguage_t)();
GetUserDefaultUILanguage_t GetUserDefaultUILanguage =
(GetUserDefaultUILanguage_t)
coreloc_dll.lookup(_T("GetUserDefaultUILanguage"));
if (GetUserDefaultUILanguage == NULL) {
LogStartUp(_T("Units: GetUserDefaultUILanguage() not available"));
return 0;
}
#endif
// Retrieve the default user language identifier from the OS
LANGID lang_id = GetUserDefaultUILanguage();
LogStartUp(_T("Units: GetUserDefaultUILanguage() = 0x%x"), (int)lang_id);
if (lang_id == 0)
return 0;
return find_language(lang_id);
#elif defined(ANDROID)
JNIEnv *env = Java::GetEnv();
Java::Class cls(env, "java/util/Locale");
// Call static function Locale.getDefault() that
// returns the user's default Locale object
jmethodID cid = env->GetStaticMethodID(cls, "getDefault",
"()Ljava/util/Locale;");
assert(cid != NULL);
jobject _obj = env->CallStaticObjectMethod(cls, cid);
if (_obj == NULL)
return 0;
Java::LocalObject obj(env, _obj);
// Call function Locale.getLanguage() that
// returns a two-letter language string
cid = env->GetMethodID(cls, "toString", "()Ljava/lang/String;");
assert(cid != NULL);
jstring language = (jstring)env->CallObjectMethod(obj, cid);
if (language == NULL)
return 0;
// Convert the jstring to a char string
const char *language2 = env->GetStringUTFChars(language, NULL);
if (language2 == NULL) {
env->DeleteLocalRef(language);
return 0;
}
unsigned id = find_language(language2);
// Clean up the memory
env->ReleaseStringUTFChars(language, language2);
env->DeleteLocalRef(language);
// Return e.g. "de.mo"
return id;
#else
// Metric default on Linux
return 0;
#endif
}
static const TCHAR *
detect_language()
{
#ifdef ANDROID
JNIEnv *env = Java::GetEnv();
Java::Class cls(env, "java/util/Locale");
// Call static function Locale.getDefault() that
// returns the user's default Locale object
jmethodID cid = env->GetStaticMethodID(cls, "getDefault",
"()Ljava/util/Locale;");
assert(cid != NULL);
jobject _obj = env->CallStaticObjectMethod(cls, cid);
if (_obj == NULL)
return NULL;
Java::LocalObject obj(env, _obj);
// Call function Locale.getLanguage() that
// returns a two-letter language string
cid = env->GetMethodID(cls, "getLanguage", "()Ljava/lang/String;");
assert(cid != NULL);
jstring language = (jstring)env->CallObjectMethod(obj, cid);
if (language == NULL)
return NULL;
// Convert the jstring to a char string
const char *language2 = env->GetStringUTFChars(language, NULL);
if (language2 == NULL) {
env->DeleteLocalRef(language);
return NULL;
}
/* generate the resource name */
const char *language3 = language2;
if (strcmp(language3, "pt") == 0)
/* hack */
language3 = "pt_BR";
// Attach .mo to the language identifier
static char language_buffer[16];
snprintf(language_buffer, sizeof(language_buffer), "%s.mo", language3);
// Clean up the memory
env->ReleaseStringUTFChars(language, language2);
env->DeleteLocalRef(language);
// Return e.g. "de.mo"
return language_buffer;
#else /* !ANDROID */
#if defined(_WIN32_WCE)
/* the GetUserDefaultUILanguage() prototype is missing on
mingw32ce, we have to look it up dynamically */
DynamicLibrary coreloc_dll(_T("coredll"));
if (!coreloc_dll.defined()) {
LogStartUp(_T("Language: coredll.dll not found"));
return NULL;
}
typedef LANGID WINAPI (*GetUserDefaultUILanguage_t)();
GetUserDefaultUILanguage_t GetUserDefaultUILanguage =
(GetUserDefaultUILanguage_t)
coreloc_dll.lookup(_T("GetUserDefaultUILanguage"));
if (GetUserDefaultUILanguage == NULL) {
LogStartUp(_T("Language: GetUserDefaultUILanguage() not available"));
return NULL;
}
#endif
// Retrieve the default user language identifier from the OS
LANGID lang_id = GetUserDefaultUILanguage();
LogStartUp(_T("Language: GetUserDefaultUILanguage()=0x%x"), (int)lang_id);
if (lang_id == 0)
return NULL;
// Try to convert the primary language part of the language identifier
// to a MO file name in the language table
return find_language(PRIMARYLANGID(lang_id));
#endif /* !ANDROID */
}
