b8ba871bd9
files, curses, db, regex etc that we already have). The other glue will follow shortly. Obtained from: Keith Bostic <bostic@bostic.com>
60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
/*-
|
|
* 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[] = "@(#)ex_equal.c 10.10 (Berkeley) 3/6/96";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/queue.h>
|
|
|
|
#include <bitstring.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
|
|
#include "../common/common.h"
|
|
|
|
/*
|
|
* ex_equal -- :address =
|
|
*
|
|
* PUBLIC: int ex_equal __P((SCR *, EXCMD *));
|
|
*/
|
|
int
|
|
ex_equal(sp, cmdp)
|
|
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);
|
|
}
|