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81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/*-
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* Copyright (c) 1992, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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* Copyright (c) 1992, 1993, 1994, 1995, 1996
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* Keith Bostic. All rights reserved.
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*
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* See the LICENSE file for redistribution information.
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*/
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#include "config.h"
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#ifndef lint
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static const char sccsid[] = "$Id: v_yank.c,v 10.10 2001/06/25 15:19:36 skimo Exp $";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <sys/time.h>
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#include <bitstring.h>
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#include <limits.h>
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#include <stdio.h>
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#include "../common/common.h"
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#include "vi.h"
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/*
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* v_yank -- [buffer][count]y[count][motion]
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* [buffer][count]Y
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* Yank text (or lines of text) into a cut buffer.
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*
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* !!!
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* Historic vi moved the cursor to the from MARK if it was before the current
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* cursor and on a different line, e.g., "yk" moves the cursor but "yj" and
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* "yl" do not. Unfortunately, it's too late to change this now. Matching
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* the historic semantics isn't easy. The line number was always changed and
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* column movement was usually relative. However, "y'a" moved the cursor to
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* the first non-blank of the line marked by a, while "y`a" moved the cursor
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* to the line and column marked by a. Hopefully, the motion component code
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* got it right... Unlike delete, we make no adjustments here.
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*
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* PUBLIC: int v_yank(SCR *, VICMD *);
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*/
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int
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v_yank(SCR *sp, VICMD *vp)
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{
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size_t len;
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if (cut(sp,
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F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL, &vp->m_start,
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&vp->m_stop, F_ISSET(vp, VM_LMODE) ? CUT_LINEMODE : 0))
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return (1);
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sp->rptlines[L_YANKED] += (vp->m_stop.lno - vp->m_start.lno) + 1;
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/*
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* One special correction, in case we've deleted the current line or
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* character. We check it here instead of checking in every command
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* that can be a motion component.
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*/
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if (db_get(sp, vp->m_final.lno, DBG_FATAL, NULL, &len))
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return (1);
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/*
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* !!!
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* Cursor movements, other than those caused by a line mode command
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* moving to another line, historically reset the relative position.
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*
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* This currently matches the check made in v_delete(), I'm hoping
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* that they should be consistent...
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*/
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if (!F_ISSET(vp, VM_LMODE)) {
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F_CLR(vp, VM_RCM_MASK);
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F_SET(vp, VM_RCM_SET);
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/* Make sure the set cursor position exists. */
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if (vp->m_final.cno >= len)
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vp->m_final.cno = len ? len - 1 : 0;
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}
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return (0);
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}
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