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/*-
* 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: v_yank.c,v 10.10 2001/06/25 15:19:36 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"
#include "vi.h"
/*
* v_yank -- [buffer][count]y[count][motion]
* [buffer][count]Y
* Yank text (or lines of text) into a cut buffer.
*
* !!!
* Historic vi moved the cursor to the from MARK if it was before the current
* cursor and on a different line, e.g., "yk" moves the cursor but "yj" and
* "yl" do not. Unfortunately, it's too late to change this now. Matching
* the historic semantics isn't easy. The line number was always changed and
* column movement was usually relative. However, "y'a" moved the cursor to
* the first non-blank of the line marked by a, while "y`a" moved the cursor
* to the line and column marked by a. Hopefully, the motion component code
* got it right... Unlike delete, we make no adjustments here.
*
* PUBLIC: int v_yank __P((SCR *, VICMD *));
*/
int
v_yank(SCR *sp, VICMD *vp)
{
size_t len;
if (cut(sp,
F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL, &vp->m_start,
&vp->m_stop, F_ISSET(vp, VM_LMODE) ? CUT_LINEMODE : 0))
return (1);
sp->rptlines[L_YANKED] += (vp->m_stop.lno - vp->m_start.lno) + 1;
/*
* One special correction, in case we've deleted the current line or
* character. We check it here instead of checking in every command
* that can be a motion component.
*/
if (db_get(sp, vp->m_final.lno, DBG_FATAL, NULL, &len))
return (1);
/*
* !!!
* Cursor movements, other than those caused by a line mode command
* moving to another line, historically reset the relative position.
*
* This currently matches the check made in v_delete(), I'm hoping
* that they should be consistent...
*/
if (!F_ISSET(vp, VM_LMODE)) {
F_CLR(vp, VM_RCM_MASK);
F_SET(vp, VM_RCM_SET);
/* Make sure the set cursor position exists. */
if (vp->m_final.cno >= len)
vp->m_final.cno = len ? len - 1 : 0;
}
return (0);
}
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