show_text_part_content (node->part, stream_memory);
part_content = g_mime_stream_mem_get_byte_array (GMIME_STREAM_MEM (stream_memory));
printf (", \"content\": %s", json_quote_chararray (local, (char *) part_content->data, part_content->len));
show_text_part_content (node->part, stream_memory);
part_content = g_mime_stream_mem_get_byte_array (GMIME_STREAM_MEM (stream_memory));
printf (", \"content\": %s", json_quote_chararray (local, (char *) part_content->data, part_content->len));