b8ba871bd9
files, curses, db, regex etc that we already have). The other glue will follow shortly. Obtained from: Keith Bostic <bostic@bostic.com>
108 lines
2.4 KiB
C
108 lines
2.4 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[] = "@(#)v_delete.c 10.9 (Berkeley) 10/23/96";
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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_delete -- [buffer][count]d[count]motion
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* [buffer][count]D
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* Delete a range of text.
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*
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* PUBLIC: int v_delete __P((SCR *, VICMD *));
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*/
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int
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v_delete(sp, vp)
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SCR *sp;
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VICMD *vp;
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{
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recno_t nlines;
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size_t len;
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int lmode;
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lmode = F_ISSET(vp, VM_LMODE) ? CUT_LINEMODE : 0;
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/* Yank the lines. */
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if (cut(sp, F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL,
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&vp->m_start, &vp->m_stop,
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lmode | (F_ISSET(vp, VM_CUTREQ) ? CUT_NUMREQ : CUT_NUMOPT)))
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return (1);
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/* Delete the lines. */
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if (del(sp, &vp->m_start, &vp->m_stop, lmode))
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return (1);
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/*
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* Check for deletion of the entire file. Try to check a close
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* by line so we don't go to the end of the file unnecessarily.
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*/
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if (!db_exist(sp, vp->m_final.lno + 1)) {
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if (db_last(sp, &nlines))
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return (1);
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if (nlines == 0) {
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vp->m_final.lno = 1;
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vp->m_final.cno = 0;
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return (0);
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}
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}
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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, 0, NULL, &len)) {
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if (db_get(sp, nlines, DBG_FATAL, NULL, &len))
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return (1);
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vp->m_final.lno = nlines;
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}
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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_yank(), I'm hoping that
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* 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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/*
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* !!!
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* The "dd" command moved to the first non-blank; "d<motion>"
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* didn't.
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*/
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if (F_ISSET(vp, VM_LDOUBLE)) {
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F_CLR(vp, VM_RCM_MASK);
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F_SET(vp, VM_RCM_SETFNB);
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}
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return (0);
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}
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