const char *
I18n_GetString(const char *domain,
const char *msgid)
{
const char *idp;
const char *strp;
char idBuf[MSG_MAX_ID];
size_t len;
GHashTable *source = NULL;
MsgCatalog *catalog;
MsgState *state = MsgGetState();
/* All message strings must be prefixed by the message ID. */
ASSERT(domain != NULL);
ASSERT(msgid != NULL);
ASSERT(MsgHasMsgID(msgid));
/*
* Find the beginning of the ID (idp) and the string (strp).
* The string should have the correct MSG_MAGIC(...)... form.
*/
idp = msgid + MSG_MAGIC_LEN + 1;
strp = strchr(idp, ')') + 1;
len = strp - idp - 1;
ASSERT(len <= MSG_MAX_ID - 1);
memcpy(idBuf, idp, len);
idBuf[len] = '\0';
g_static_mutex_lock(&state->lock);
catalog = MsgGetCatalog(domain);
if (catalog != NULL) {
source = catalog->utf8;
}
if (source != NULL) {
const void *retval = NULL;
retval = g_hash_table_lookup(source, idBuf);
if (NULL != retval) {
strp = retval;
}
}
g_static_mutex_unlock(&state->lock);
return strp;
}
static const void *
MsgGetString(const char *domain,
const char *msgid,
StringEncoding encoding)
{
const char *idp;
const char *strp;
char idBuf[MSG_MAX_ID];
size_t len;
HashTable *source = NULL;
MsgCatalog *catalog;
MsgState *state = MsgGetState();
/* All message strings must be prefixed by the message ID. */
ASSERT(domain != NULL);
ASSERT(msgid != NULL);
ASSERT(MsgHasMsgID(msgid));
#if defined(_WIN32)
ASSERT(encoding == STRING_ENCODING_UTF8 ||
encoding == STRING_ENCODING_UTF16_LE);
#else
ASSERT(encoding == STRING_ENCODING_UTF8);
#endif
/*
* Find the beginning of the ID (idp) and the string (strp).
* The string should have the correct MSG_MAGIC(...)... form.
*/
idp = msgid + MSG_MAGIC_LEN + 1;
strp = strchr(idp, ')') + 1;
len = strp - idp - 1;
ASSERT_NOT_IMPLEMENTED(len <= MSG_MAX_ID - 1);
memcpy(idBuf, idp, len);
idBuf[len] = '\0';
/*
* This lock is pretty coarse-grained, but a lot of the code below just runs
* in exceptional situations, so it should be OK.
*/
g_static_mutex_lock(&state->lock);
catalog = MsgGetCatalog(domain);
if (catalog != NULL) {
switch (encoding) {
case STRING_ENCODING_UTF8:
source = catalog->utf8;
break;
#if defined(_WIN32)
case STRING_ENCODING_UTF16_LE:
source = catalog->utf16;
break;
#endif
default:
NOT_IMPLEMENTED();
}
}
#if defined(_WIN32)
/*
* Lazily create the local and UTF-16 dictionaries. This may require also
* registering an empty message catalog for the desired domain.
*/
if (source == NULL && encoding == STRING_ENCODING_UTF16_LE) {
catalog = MsgGetCatalog(domain);
if (catalog == NULL) {
if (domain == NULL) {
g_error("Application did not set up a default text domain.");
}
catalog = g_new0(MsgCatalog, 1);
MsgSetCatalog(domain, catalog);
}
catalog->utf16 = HashTable_Alloc(8, HASH_STRING_KEY, g_free);
ASSERT_MEM_ALLOC(catalog->utf16);
source = catalog->utf16;
}
#endif
/*
* Look up the localized string, converting to requested encoding as needed.
*/
if (source != NULL) {
const void *retval = NULL;
if (HashTable_Lookup(source, idBuf, (void **) &retval)) {
strp = retval;
#if defined(_WIN32)
} else if (encoding == STRING_ENCODING_UTF16_LE) {
gchar *converted;
Bool success;
/*
* Look up the string in UTF-8, convert it and cache it.
*/
retval = MsgGetString(domain, msgid, STRING_ENCODING_UTF8);
ASSERT(retval);
converted = (gchar *) g_utf8_to_utf16(retval, -1, NULL, NULL, NULL);
ASSERT(converted != NULL);
success = HashTable_Insert(source, idBuf, converted);
ASSERT(success);
strp = converted;
#endif
}
}
g_static_mutex_unlock(&state->lock);
return strp;
}
