88 static char_u	*expr_line = NULL;  variable
119     vim_free(expr_line);  in set_expr_line()
120     expr_line = new_line;  in set_expr_line()
135     if (expr_line == NULL)  in get_expr_line()
140     expr_copy = vim_strsave(expr_line);  in get_expr_line()
162     if (expr_line == NULL)  in get_expr_line_src()
164     return vim_strsave(expr_line);  in get_expr_line_src()
2470     if (expr_line != NULL && (arg == NULL || vim_strchr(arg, '=') != NULL)  in ex_display()
2471 				  && !got_int && !message_filtered(expr_line))  in ex_display()
2474 	dis_msg(expr_line, FALSE);  in ex_display()
2851 	if (must_append && expr_line != NULL)  in write_reg_contents_ex()
2853 	    s = concat_str(expr_line, p);  in write_reg_contents_ex()