Esempio n. 1
0
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;
}
Esempio n. 2
0
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;
}