freebsd-dev/contrib/nvi/ex/ex_equal.c
Peter Wemm f0957ccae4 Update nvi-1.79 to 2.1.1-4334a8297f
This is the gsoc-2011 project to clean up and backport multibyte support
from other nvi forks in a form we can use.

USE_WIDECHAR is on unless building for the rescue crunchgen. This should
allow editing in the native locale encoding.

USE_ICONV depends on make.conf having 'WITH_ICONV=YES' for now.  This
adds the ability to do things like edit a KOI8-R file while having $LANG
set to (say) en_US.UTF-8.  iconv is used to transcode the characters for
display.

Other points:
* It uses gencat and catopen/etc instead of homegrown msg catalog stuff.
* A lot of stuff has been trimmed out, eg: the perl and tcl bindings which
  we could never use in base anyway.
* It uses ncursesw when in widechar mode.  This could be interesting.

GSoC info: http://www.google-melange.com/gsoc/proposal/review/google/gsoc2011/zy/1
Repo at: https://github.com/lichray/nvi2

Obtained from:  Zhihao Yuan <lichray@gmail.com>
2013-08-11 20:03:12 +00:00

59 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[] = "$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 __P((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);
}