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 13254225Speterstatic const char sccsid[] = "$Id: v_xchar.c,v 10.10 2001/06/25 15:19:36 skimo Exp $"; 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_xchar -- [buffer] [count]x 2919304Speter * Deletes the character(s) on which the cursor sits. 3019304Speter * 3119304Speter * PUBLIC: int v_xchar __P((SCR *, VICMD *)); 3219304Speter */ 3319304Speterint 34254225Speterv_xchar(SCR *sp, VICMD *vp) 3519304Speter{ 3619304Speter size_t len; 3719304Speter int isempty; 3819304Speter 3919304Speter if (db_eget(sp, vp->m_start.lno, NULL, &len, &isempty)) { 4019304Speter if (isempty) 4119304Speter goto nodel; 4219304Speter return (1); 4319304Speter } 4419304Speter if (len == 0) { 4519304Speternodel: msgq(sp, M_BERR, "206|No characters to delete"); 4619304Speter return (1); 4719304Speter } 4819304Speter 4919304Speter /* 5019304Speter * Delete from the cursor toward the end of line, w/o moving the 5119304Speter * cursor. 5219304Speter * 5319304Speter * !!! 5419304Speter * Note, "2x" at EOL isn't the same as "xx" because the left movement 5519304Speter * of the cursor as part of the 'x' command isn't taken into account. 5619304Speter * Historically correct. 5719304Speter */ 5819304Speter if (F_ISSET(vp, VC_C1SET)) 5919304Speter vp->m_stop.cno += vp->count - 1; 6019304Speter if (vp->m_stop.cno >= len - 1) { 6119304Speter vp->m_stop.cno = len - 1; 6219304Speter vp->m_final.cno = vp->m_start.cno ? vp->m_start.cno - 1 : 0; 6319304Speter } else 6419304Speter vp->m_final.cno = vp->m_start.cno; 6519304Speter 6619304Speter if (cut(sp, 6719304Speter F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL, 6819304Speter &vp->m_start, &vp->m_stop, 0)) 6919304Speter return (1); 7019304Speter return (del(sp, &vp->m_start, &vp->m_stop, 0)); 7119304Speter} 7219304Speter 7319304Speter/* 7419304Speter * v_Xchar -- [buffer] [count]X 7519304Speter * Deletes the character(s) immediately before the current cursor 7619304Speter * position. 7719304Speter * 7819304Speter * PUBLIC: int v_Xchar __P((SCR *, VICMD *)); 7919304Speter */ 8019304Speterint 81254225Speterv_Xchar(SCR *sp, VICMD *vp) 8219304Speter{ 8319304Speter u_long cnt; 8419304Speter 8519304Speter if (vp->m_start.cno == 0) { 8619304Speter v_sol(sp); 8719304Speter return (1); 8819304Speter } 8919304Speter 9019304Speter cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; 9119304Speter if (cnt >= vp->m_start.cno) 9219304Speter vp->m_start.cno = 0; 9319304Speter else 9419304Speter vp->m_start.cno -= cnt; 9519304Speter --vp->m_stop.cno; 9619304Speter vp->m_final.cno = vp->m_start.cno; 9719304Speter 9819304Speter if (cut(sp, 9919304Speter F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL, 10019304Speter &vp->m_start, &vp->m_stop, 0)) 10119304Speter return (1); 10219304Speter return (del(sp, &vp->m_start, &vp->m_stop, 0)); 10319304Speter} 104