Return to v_put.c CVS log

Up to [local] / src / usr.bin / vi / vi

rcsid[] and sccsid[] and copyright[] are essentially unmaintained (and
unmaintainable).  these days, people use source.  these id's do not provide
any benefit, and do hurt the small install media
(the 33,000 line diff is essentially mechanical)
ok with the idea millert, ok dms

/*	$OpenBSD: v_put.c,v 1.5 2009/10/27 23:59:48 deraadt Exp $	*/

/*-
 * 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"

#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"
#include "vi.h"

static void	inc_buf(SCR *, VICMD *);

/*
 * v_Put -- [buffer]P
 *	Insert the contents of the buffer before the cursor.
 *
 * PUBLIC: int v_Put(SCR *, VICMD *);
 */
int
v_Put(sp, vp)
	SCR *sp;
	VICMD *vp;
{
	u_long cnt;

	if (F_ISSET(vp, VC_ISDOT))
		inc_buf(sp, vp);

	/*
	 * !!!
	 * Historic vi did not support a count with the 'p' and 'P'
	 * commands.  It's useful, so we do.
	 */
	for (cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; cnt--;) {
		if (put(sp, NULL,
		    F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL,
		    &vp->m_start, &vp->m_final, 0))
			return (1);
		vp->m_start = vp->m_final;
		if (INTERRUPTED(sp))
			return (1);
	}
	return (0);
}

/*
 * v_put -- [buffer]p
 *	Insert the contents of the buffer after the cursor.
 *
 * PUBLIC: int v_put(SCR *, VICMD *);
 */
int
v_put(sp, vp)
	SCR *sp;
	VICMD *vp;
{
	u_long cnt;

	if (F_ISSET(vp, VC_ISDOT))
		inc_buf(sp, vp);

	/*
	 * !!!
	 * Historic vi did not support a count with the 'p' and 'P'
	 * commands.  It's useful, so we do.
	 */
	for (cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; cnt--;) {
		if (put(sp, NULL,
		    F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL,
		    &vp->m_start, &vp->m_final, 1))
			return (1);
		vp->m_start = vp->m_final;
		if (INTERRUPTED(sp))
			return (1);
	}
	return (0);
}

/*
 * !!!
 * Historical whackadoo.  The dot command `puts' the numbered buffer
 * after the last one put.  For example, `"4p.' would put buffer #4
 * and buffer #5.  If the user continued to enter '.', the #9 buffer
 * would be repeatedly output.  This was not documented, and is a bit
 * tricky to reconstruct.  Historical versions of vi also dropped the
 * contents of the default buffer after each put, so after `"4p' the
 * default buffer would be empty.  This makes no sense to me, so we
 * don't bother.  Don't assume sequential order of numeric characters.
 *
 * And, if that weren't exciting enough, failed commands don't normally
 * set the dot command.  Well, boys and girls, an exception is that
 * the buffer increment gets done regardless of the success of the put.
 */
static void
inc_buf(sp, vp)
	SCR *sp;
	VICMD *vp;
{
	CHAR_T v;

	switch (vp->buffer) {
	case '1':
		v = '2';
		break;
	case '2':
		v = '3';
		break;
	case '3':
		v = '4';
		break;
	case '4':
		v = '5';
		break;
	case '5':
		v = '6';
		break;
	case '6':
		v = '7';
		break;
	case '7':
		v = '8';
		break;
	case '8':
		v = '9';
		break;
	default:
		return;
	}
	VIP(sp)->sdot.buffer = vp->buffer = v;
}