CommandSequence

typedef struct st_LWModCommand {
   void          *data;
   const char    *argument;
   LWCommandCode (*lookup)   (void *, const char *cmdName);
   int           (*execute)  (void *, LWCommandCode cmd,
                    int argc, const DynaValue *argv,
                    EltOpSelect, DynaValue *result);
   MeshEditBegin *editBegin;
   int           (*evaluate) (void *, const char *command);
} LWModCommand;

CSERR_NONE
CSERR_MEMORY
CSERR_IO
CSERR_USERABORT
CSERR_ARGCOUNT
CSERR_ARGTYPE
CSERR_ARGVALUE
CSERR_OPFAILURE
CSERR_BADSEL