v_delete.c revision 19304
119304Speter/*- 219304Speter * Copyright (c) 1992, 1993, 1994 319304Speter * The Regents of the University of California. All rights reserved. 419304Speter * Copyright (c) 1992, 1993, 1994, 1995, 1996 519304Speter * Keith Bostic. All rights reserved. 619304Speter * 719304Speter * See the LICENSE file for redistribution information. 819304Speter */ 919304Speter 1019304Speter#include "config.h" 1119304Speter 1219304Speter#ifndef lint 1319304Speterstatic const char sccsid[] = "@(#)v_delete.c 10.9 (Berkeley) 10/23/96"; 1419304Speter#endif /* not lint */ 1519304Speter 1619304Speter#include <sys/types.h> 1719304Speter#include <sys/queue.h> 1819304Speter#include <sys/time.h> 1919304Speter 2019304Speter#include <bitstring.h> 2119304Speter#include <limits.h> 2219304Speter#include <stdio.h> 2319304Speter 2419304Speter#include "../common/common.h" 2519304Speter#include "vi.h" 2619304Speter 2719304Speter/* 2819304Speter * v_delete -- [buffer][count]d[count]motion 2919304Speter * [buffer][count]D 3019304Speter * Delete a range of text. 3119304Speter * 3219304Speter * PUBLIC: int v_delete __P((SCR *, VICMD *)); 3319304Speter */ 3419304Speterint 3519304Speterv_delete(sp, vp) 3619304Speter SCR *sp; 3719304Speter VICMD *vp; 3819304Speter{ 3919304Speter recno_t nlines; 4019304Speter size_t len; 4119304Speter int lmode; 4219304Speter 4319304Speter lmode = F_ISSET(vp, VM_LMODE) ? CUT_LINEMODE : 0; 4419304Speter 4519304Speter /* Yank the lines. */ 4619304Speter if (cut(sp, F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL, 4719304Speter &vp->m_start, &vp->m_stop, 4819304Speter lmode | (F_ISSET(vp, VM_CUTREQ) ? CUT_NUMREQ : CUT_NUMOPT))) 4919304Speter return (1); 5019304Speter 5119304Speter /* Delete the lines. */ 5219304Speter if (del(sp, &vp->m_start, &vp->m_stop, lmode)) 5319304Speter return (1); 5419304Speter 5519304Speter /* 5619304Speter * Check for deletion of the entire file. Try to check a close 5719304Speter * by line so we don't go to the end of the file unnecessarily. 5819304Speter */ 5919304Speter if (!db_exist(sp, vp->m_final.lno + 1)) { 6019304Speter if (db_last(sp, &nlines)) 6119304Speter return (1); 6219304Speter if (nlines == 0) { 6319304Speter vp->m_final.lno = 1; 6419304Speter vp->m_final.cno = 0; 6519304Speter return (0); 6619304Speter } 6719304Speter } 6819304Speter 6919304Speter /* 7019304Speter * One special correction, in case we've deleted the current line or 7119304Speter * character. We check it here instead of checking in every command 7219304Speter * that can be a motion component. 7319304Speter */ 7419304Speter if (db_get(sp, vp->m_final.lno, 0, NULL, &len)) { 7519304Speter if (db_get(sp, nlines, DBG_FATAL, NULL, &len)) 7619304Speter return (1); 7719304Speter vp->m_final.lno = nlines; 7819304Speter } 7919304Speter 8019304Speter /* 8119304Speter * !!! 8219304Speter * Cursor movements, other than those caused by a line mode command 8319304Speter * moving to another line, historically reset the relative position. 8419304Speter * 8519304Speter * This currently matches the check made in v_yank(), I'm hoping that 8619304Speter * they should be consistent... 8719304Speter */ 8819304Speter if (!F_ISSET(vp, VM_LMODE)) { 8919304Speter F_CLR(vp, VM_RCM_MASK); 9019304Speter F_SET(vp, VM_RCM_SET); 9119304Speter 9219304Speter /* Make sure the set cursor position exists. */ 9319304Speter if (vp->m_final.cno >= len) 9419304Speter vp->m_final.cno = len ? len - 1 : 0; 9519304Speter } 9619304Speter 9719304Speter /* 9819304Speter * !!! 9919304Speter * The "dd" command moved to the first non-blank; "d<motion>" 10019304Speter * didn't. 10119304Speter */ 10219304Speter if (F_ISSET(vp, VM_LDOUBLE)) { 10319304Speter F_CLR(vp, VM_RCM_MASK); 10419304Speter F_SET(vp, VM_RCM_SETFNB); 10519304Speter } 10619304Speter return (0); 10719304Speter} 108