23 StringID AddGRFString(uint32 grfid, uint16 stringid, byte langid, 
bool new_scheme, 
bool allow_newlines, 
const char *text_to_add, 
StringID def_string);
 
   36 bool CheckGrfLangID(byte lang_id, byte grf_version);
 
   40 void RewindTextRefStack();
 
   44 uint 
RemapNewGRFStringControlCode(uint scc, 
char *buf_start, 
char **buff, 
const char **str, int64 *argv, uint argv_size, 
bool modify_argv);
 
   64   int GetMapping(
int newgrf_id, 
bool gender) 
const;