4.4BSD/usr/src/contrib/nvi/nvi/vi/v_status.c

/*-
 * Copyright (c) 1992, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
static char sccsid[] = "@(#)v_status.c	8.1 (Berkeley) 6/9/93";
#endif /* not lint */

#include <sys/types.h>

#include <unistd.h>

#include "vi.h"
#include "vcmd.h"

/*
 * v_status -- ^G
 *	Show the file status.
 */
int
v_status(sp, ep, vp, fm, tm, rp)
	SCR *sp;
	EXF *ep;
	VICMDARG *vp;
	MARK *fm, *tm, *rp;
{

	/*
	 * ^G in historic vi reset the cursor column to the first
	 * non-blank character in the line.  This doesn't seem of
	 * any usefulness whatsoever, so I don't bother.
	 */
	*rp = *fm;
	return (status(sp, ep, fm->lno, 1));
}

int
status(sp, ep, lno, showlast)
	SCR *sp;
	EXF *ep;
	recno_t lno;
	int showlast;
{
	recno_t last;
	char *ro, *pid;
#ifdef DEBUG
	char pbuf[50];

	(void)snprintf(pbuf, sizeof(pbuf), " (pid %u)", getpid());
	pid = pbuf;
#else
	pid = "";
#endif
	ro = F_ISSET(ep, F_RDONLY) ? ", readonly" : "";
	if (showlast) {
		if (file_lline(sp, ep, &last))
			return (1);
		if (last >= 1)
			msgq(sp, M_INFO,
			    "%s: %s%s: line %lu of %lu [%ld%%]%s", ep->name,
			    F_ISSET(ep, F_MODIFIED) ? "modified" : "unmodified",
			    ro, lno, last, (lno * 100) / last, pid);
		else
			msgq(sp, M_INFO,
			    "%s: %s%s: empty file%s", ep->name,
			    F_ISSET(ep, F_MODIFIED) ? "modified" : "unmodified",
			    ro, pid);
	} else
		msgq(sp, M_INFO,
		    "%s: %s%s: line %lu%s", ep->name,
		    F_ISSET(ep, F_MODIFIED) ? "modified" : "unmodified",
		    ro, lno, pid);
	return (0);
}