1 /* $OpenBSD: ex_delete.c,v 1.7 2014/11/12 04:28:41 bentley 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 #include <sys/types.h> 15 #include <sys/queue.h> 16 17 #include <bitstring.h> 18 #include <limits.h> 19 #include <stdio.h> 20 21 #include "../common/common.h" 22 23 /* 24 * ex_delete: [line [,line]] d[elete] [buffer] [count] [flags] 25 * 26 * Delete lines from the file. 27 * 28 * PUBLIC: int ex_delete(SCR *, EXCMD *); 29 */ 30 int 31 ex_delete(SCR *sp, EXCMD *cmdp) 32 { 33 recno_t lno; 34 35 NEEDFILE(sp, cmdp); 36 37 /* 38 * !!! 39 * Historically, lines deleted in ex were not placed in the numeric 40 * buffers. We follow historic practice so that we don't overwrite 41 * vi buffers accidentally. 42 */ 43 if (cut(sp, 44 FL_ISSET(cmdp->iflags, E_C_BUFFER) ? &cmdp->buffer : NULL, 45 &cmdp->addr1, &cmdp->addr2, CUT_LINEMODE)) 46 return (1); 47 48 /* Delete the lines. */ 49 if (del(sp, &cmdp->addr1, &cmdp->addr2, 1)) 50 return (1); 51 52 /* Set the cursor to the line after the last line deleted. */ 53 sp->lno = cmdp->addr1.lno; 54 55 /* Or the last line in the file if deleted to the end of the file. */ 56 if (db_last(sp, &lno)) 57 return (1); 58 if (sp->lno > lno) 59 sp->lno = lno; 60 return (0); 61 } 62