/*- * Copyright (c) 1992, 1993, 1994 * The Regents of the University of California. All rights reserved. * Copyright (c) 1992, 1993, 1994, 1995, 1996 * Keith Bostic. All rights reserved. * * See the LICENSE file for redistribution information. */ #include "config.h" #ifndef lint static const char sccsid[] = "$Id: ex_equal.c,v 10.12 2001/06/25 15:19:15 skimo Exp $"; #endif /* not lint */ #include <sys/types.h> #include <sys/queue.h> #include <sys/time.h> #include <bitstring.h> #include <limits.h> #include <stdio.h> #include "../common/common.h" /* * ex_equal -- :address = * * PUBLIC: int ex_equal(SCR *, EXCMD *); */ int ex_equal(SCR *sp, EXCMD *cmdp) { recno_t lno; NEEDFILE(sp, cmdp); /* * Print out the line number matching the specified address, * or the number of the last line in the file if no address * specified. * * !!! * Historically, ":0=" displayed 0, and ":=" or ":1=" in an * empty file displayed 1. Until somebody complains loudly, * we're going to do it right. The tables in excmd.c permit * lno to get away with any address from 0 to the end of the * file, which, in an empty file, is 0. */ if (F_ISSET(cmdp, E_ADDR_DEF)) { if (db_last(sp, &lno)) return (1); } else lno = cmdp->addr1.lno; (void)ex_printf(sp, "%ld\n", lno); return (0); }