1/* $NetBSD: v_xchar.c,v 1.1.1.2 2008/05/18 14:31:48 aymeric Exp $ */ 2 3/*- 4 * Copyright (c) 1992, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * Copyright (c) 1992, 1993, 1994, 1995, 1996 7 * Keith Bostic. All rights reserved. 8 * 9 * See the LICENSE file for redistribution information. 10 */ 11 12#include "config.h" 13 14#ifndef lint 15static const char sccsid[] = "Id: v_xchar.c,v 10.10 2001/06/25 15:19:36 skimo Exp (Berkeley) Date: 2001/06/25 15:19:36"; 16#endif /* not lint */ 17 18#include <sys/types.h> 19#include <sys/queue.h> 20#include <sys/time.h> 21 22#include <bitstring.h> 23#include <limits.h> 24#include <stdio.h> 25 26#include "../common/common.h" 27#include "vi.h" 28 29/* 30 * v_xchar -- [buffer] [count]x 31 * Deletes the character(s) on which the cursor sits. 32 * 33 * PUBLIC: int v_xchar __P((SCR *, VICMD *)); 34 */ 35int 36v_xchar(SCR *sp, VICMD *vp) 37{ 38 size_t len; 39 int isempty; 40 41 if (db_eget(sp, vp->m_start.lno, NULL, &len, &isempty)) { 42 if (isempty) 43 goto nodel; 44 return (1); 45 } 46 if (len == 0) { 47nodel: msgq(sp, M_BERR, "206|No characters to delete"); 48 return (1); 49 } 50 51 /* 52 * Delete from the cursor toward the end of line, w/o moving the 53 * cursor. 54 * 55 * !!! 56 * Note, "2x" at EOL isn't the same as "xx" because the left movement 57 * of the cursor as part of the 'x' command isn't taken into account. 58 * Historically correct. 59 */ 60 if (F_ISSET(vp, VC_C1SET)) 61 vp->m_stop.cno += vp->count - 1; 62 if (vp->m_stop.cno >= len - 1) { 63 vp->m_stop.cno = len - 1; 64 vp->m_final.cno = vp->m_start.cno ? vp->m_start.cno - 1 : 0; 65 } else 66 vp->m_final.cno = vp->m_start.cno; 67 68 if (cut(sp, 69 F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL, 70 &vp->m_start, &vp->m_stop, 0)) 71 return (1); 72 return (del(sp, &vp->m_start, &vp->m_stop, 0)); 73} 74 75/* 76 * v_Xchar -- [buffer] [count]X 77 * Deletes the character(s) immediately before the current cursor 78 * position. 79 * 80 * PUBLIC: int v_Xchar __P((SCR *, VICMD *)); 81 */ 82int 83v_Xchar(SCR *sp, VICMD *vp) 84{ 85 u_long cnt; 86 87 if (vp->m_start.cno == 0) { 88 v_sol(sp); 89 return (1); 90 } 91 92 cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; 93 if (cnt >= vp->m_start.cno) 94 vp->m_start.cno = 0; 95 else 96 vp->m_start.cno -= cnt; 97 --vp->m_stop.cno; 98 vp->m_final.cno = vp->m_start.cno; 99 100 if (cut(sp, 101 F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL, 102 &vp->m_start, &vp->m_stop, 0)) 103 return (1); 104 return (del(sp, &vp->m_start, &vp->m_stop, 0)); 105} 106