+int getNumNodes(ListNode *node_first)
+{
+ return (node_first ? 1 + getNumNodes(node_first->next) : 0);
+}
+
+void dumpList(ListNode *node_first)
+{
+ ListNode *node = node_first;
+
+ while (node)
+ {
+ printf("['%s' (%d)]\n", node->key,
+ ((struct ListNodeInfo *)node->content)->num_references);
+ node = node->next;
+ }
+
+ printf("[%d nodes]\n", getNumNodes(node_first));
+}
+
+
+/* ------------------------------------------------------------------------- */
+/* functions for file handling */
+/* ------------------------------------------------------------------------- */
+
+File *openFile(char *filename, char *mode)
+{
+ File *file = checked_calloc(sizeof(File));
+
+ file->file = fopen(filename, mode);
+
+ if (file->file != NULL)
+ {
+ file->filename = getStringCopy(filename);
+
+ return file;
+ }
+
+#if defined(PLATFORM_ANDROID)
+ file->asset_file = SDL_RWFromFile(filename, mode);
+
+ if (file->asset_file != NULL)
+ {
+ file->file_is_asset = TRUE;
+ file->filename = getStringCopy(filename);
+
+ return file;
+ }
+#endif
+
+ checked_free(file);
+
+ return NULL;
+}
+
+int closeFile(File *file)
+{
+ if (file == NULL)
+ return -1;
+
+ int result = 0;
+
+#if defined(PLATFORM_ANDROID)
+ if (file->asset_file)
+ result = SDL_RWclose(file->asset_file);
+#endif
+
+ if (file->file)
+ result = fclose(file->file);
+
+ checked_free(file->filename);
+ checked_free(file);
+
+ return result;
+}
+
+int checkEndOfFile(File *file)
+{
+#if defined(PLATFORM_ANDROID)
+ if (file->file_is_asset)
+ return file->end_of_file;
+#endif
+
+ return feof(file->file);
+}
+
+size_t readFile(File *file, void *buffer, size_t item_size, size_t num_items)
+{
+#if defined(PLATFORM_ANDROID)
+ if (file->file_is_asset)
+ {
+ if (file->end_of_file)
+ return 0;
+
+ size_t num_items_read =
+ SDL_RWread(file->asset_file, buffer, item_size, num_items);
+
+ if (num_items_read < num_items)
+ file->end_of_file = TRUE;
+
+ return num_items_read;
+ }
+#endif
+
+ return fread(buffer, item_size, num_items, file->file);
+}
+
+int seekFile(File *file, long offset, int whence)
+{
+#if defined(PLATFORM_ANDROID)
+ if (file->file_is_asset)
+ {
+ int sdl_whence = (whence == SEEK_SET ? RW_SEEK_SET :
+ whence == SEEK_CUR ? RW_SEEK_CUR :
+ whence == SEEK_END ? RW_SEEK_END : 0);
+
+ return (SDL_RWseek(file->asset_file, offset, sdl_whence) == -1 ? -1 : 0);
+ }
+#endif
+
+ return fseek(file->file, offset, whence);
+}
+
+int getByteFromFile(File *file)