-gboolean execute_syntax (struct getl_interface *sss);
-gchar *execute_syntax_string (gchar *syntax);
-void execute_const_syntax_string (const gchar *syntax);
+gboolean execute_syntax (PsppireDataWindow *, struct lex_reader *);
+gchar *execute_syntax_string (PsppireDataWindow *, gchar *syntax);
+void execute_const_syntax_string (PsppireDataWindow *, const gchar *syntax);