73 lines
1.5 KiB
C
73 lines
1.5 KiB
C
/* $NetBSD: ex_delete.c,v 1.9 2002/04/09 01:47:33 thorpej Exp $ */
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/*-
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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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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static const char sccsid[] = "@(#)ex_delete.c 10.9 (Berkeley) 10/23/96";
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#else
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__RCSID("$NetBSD");
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#endif
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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 <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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/*
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* ex_delete: [line [,line]] d[elete] [buffer] [count] [flags]
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*
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* Delete lines from the file.
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*
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* PUBLIC: int ex_delete __P((SCR *, EXCMD *));
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*/
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int
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ex_delete(sp, cmdp)
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SCR *sp;
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EXCMD *cmdp;
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{
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recno_t lno;
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NEEDFILE(sp, cmdp);
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/*
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* !!!
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* Historically, lines deleted in ex were not placed in the numeric
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* buffers. We follow historic practice so that we don't overwrite
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* vi buffers accidentally.
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*/
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if (cut(sp,
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FL_ISSET(cmdp->iflags, E_C_BUFFER) ? &cmdp->buffer : NULL,
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&cmdp->addr1, &cmdp->addr2, CUT_LINEMODE))
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return (1);
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/* Delete the lines. */
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if (del(sp, &cmdp->addr1, &cmdp->addr2, 1))
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return (1);
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/* Set the cursor to the line after the last line deleted. */
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sp->lno = cmdp->addr1.lno;
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/* Or the last line in the file if deleted to the end of the file. */
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if (db_last(sp, &lno))
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return (1);
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if (sp->lno > lno)
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sp->lno = lno;
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return (0);
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}
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