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
2.2 KiB
C
108 lines
2.2 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_xchar.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_xchar -- [buffer] [count]x
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* Deletes the character(s) on which the cursor sits.
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*
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* PUBLIC: int v_xchar __P((SCR *, VICMD *));
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*/
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int
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v_xchar(sp, vp)
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SCR *sp;
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VICMD *vp;
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{
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size_t len;
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int isempty;
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if (db_eget(sp, vp->m_start.lno, NULL, &len, &isempty)) {
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if (isempty)
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goto nodel;
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return (1);
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}
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if (len == 0) {
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nodel: msgq(sp, M_BERR, "206|No characters to delete");
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return (1);
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}
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/*
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* Delete from the cursor toward the end of line, w/o moving the
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* cursor.
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*
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* !!!
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* Note, "2x" at EOL isn't the same as "xx" because the left movement
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* of the cursor as part of the 'x' command isn't taken into account.
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* Historically correct.
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*/
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if (F_ISSET(vp, VC_C1SET))
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vp->m_stop.cno += vp->count - 1;
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if (vp->m_stop.cno >= len - 1) {
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vp->m_stop.cno = len - 1;
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vp->m_final.cno = vp->m_start.cno ? vp->m_start.cno - 1 : 0;
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} else
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vp->m_final.cno = vp->m_start.cno;
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if (cut(sp,
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F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL,
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&vp->m_start, &vp->m_stop, 0))
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return (1);
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return (del(sp, &vp->m_start, &vp->m_stop, 0));
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}
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/*
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* v_Xchar -- [buffer] [count]X
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* Deletes the character(s) immediately before the current cursor
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* position.
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*
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* PUBLIC: int v_Xchar __P((SCR *, VICMD *));
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*/
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int
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v_Xchar(sp, vp)
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SCR *sp;
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VICMD *vp;
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{
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u_long cnt;
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if (vp->m_start.cno == 0) {
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v_sol(sp);
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return (1);
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}
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cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1;
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if (cnt >= vp->m_start.cno)
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vp->m_start.cno = 0;
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else
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vp->m_start.cno -= cnt;
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--vp->m_stop.cno;
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vp->m_final.cno = vp->m_start.cno;
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if (cut(sp,
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F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL,
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&vp->m_start, &vp->m_stop, 0))
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return (1);
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return (del(sp, &vp->m_start, &vp->m_stop, 0));
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}
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