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/* $OpenBSD: v_delete.c,v 1.8 2014/11/12 04:28:41 bentley 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/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(SCR *, VICMD *); |
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*/ |
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int |
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v_delete(SCR *sp, 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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} |