/*- * Copyright (c) 1992, 1993, 1994 * The Regents of the University of California. All rights reserved. * Copyright (c) 1992, 1993, 1994, 1995, 1996 * Keith Bostic. All rights reserved. * * See the LICENSE file for redistribution information. */ #include "config.h" #include <sys/types.h> #include <sys/queue.h> #include <sys/time.h> #include <bitstring.h> #include <limits.h> #include <stdio.h> #include "../common/common.h" #include "vi.h" /* * v_xchar -- [buffer] [count]x * Deletes the character(s) on which the cursor sits. * * PUBLIC: int v_xchar(SCR *, VICMD *); */ int v_xchar(SCR *sp, VICMD *vp) { size_t len; int isempty; if (db_eget(sp, vp->m_start.lno, NULL, &len, &isempty)) { if (isempty) goto nodel; return (1); } if (len == 0) { nodel: msgq(sp, M_BERR, "206|No characters to delete"); return (1); } /* * Delete from the cursor toward the end of line, w/o moving the * cursor. * * !!! * Note, "2x" at EOL isn't the same as "xx" because the left movement * of the cursor as part of the 'x' command isn't taken into account. * Historically correct. */ if (F_ISSET(vp, VC_C1SET)) vp->m_stop.cno += vp->count - 1; if (vp->m_stop.cno >= len - 1) { vp->m_stop.cno = len - 1; vp->m_final.cno = vp->m_start.cno ? vp->m_start.cno - 1 : 0; } else vp->m_final.cno = vp->m_start.cno; if (cut(sp, F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL, &vp->m_start, &vp->m_stop, 0)) return (1); return (del(sp, &vp->m_start, &vp->m_stop, 0)); } /* * v_Xchar -- [buffer] [count]X * Deletes the character(s) immediately before the current cursor * position. * * PUBLIC: int v_Xchar(SCR *, VICMD *); */ int v_Xchar(SCR *sp, VICMD *vp) { u_long cnt; if (vp->m_start.cno == 0) { v_sol(sp); return (1); } cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; if (cnt >= vp->m_start.cno) vp->m_start.cno = 0; else vp->m_start.cno -= cnt; --vp->m_stop.cno; vp->m_final.cno = vp->m_start.cno; if (cut(sp, F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL, &vp->m_start, &vp->m_stop, 0)) return (1); return (del(sp, &vp->m_start, &vp->m_stop, 0)); }