1 /*- 2 * Copyright (c) 1992, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * Copyright (c) 1992, 1993, 1994, 1995, 1996 5 * Keith Bostic. All rights reserved. 6 * 7 * See the LICENSE file for redistribution information. 8 */ 9 10 #include "config.h" 11 12 #ifndef lint 13 static const char sccsid[] = "$Id: ex_delete.c,v 10.11 2001/06/25 15:19:15 skimo Exp $"; 14 #endif /* not lint */ 15 16 #include <sys/types.h> 17 #include <sys/queue.h> 18 #include <sys/time.h> 19 20 #include <bitstring.h> 21 #include <limits.h> 22 #include <stdio.h> 23 24 #include "../common/common.h" 25 26 /* 27 * ex_delete: [line [,line]] d[elete] [buffer] [count] [flags] 28 * 29 * Delete lines from the file. 30 * 31 * PUBLIC: int ex_delete __P((SCR *, EXCMD *)); 32 */ 33 int 34 ex_delete(SCR *sp, EXCMD *cmdp) 35 { 36 recno_t lno; 37 38 NEEDFILE(sp, cmdp); 39 40 /* 41 * !!! 42 * Historically, lines deleted in ex were not placed in the numeric 43 * buffers. We follow historic practice so that we don't overwrite 44 * vi buffers accidentally. 45 */ 46 if (cut(sp, 47 FL_ISSET(cmdp->iflags, E_C_BUFFER) ? &cmdp->buffer : NULL, 48 &cmdp->addr1, &cmdp->addr2, CUT_LINEMODE)) 49 return (1); 50 51 /* Delete the lines. */ 52 if (del(sp, &cmdp->addr1, &cmdp->addr2, 1)) 53 return (1); 54 55 /* Set the cursor to the line after the last line deleted. */ 56 sp->lno = cmdp->addr1.lno; 57 58 /* Or the last line in the file if deleted to the end of the file. */ 59 if (db_last(sp, &lno)) 60 return (1); 61 if (sp->lno > lno) 62 sp->lno = lno; 63 return (0); 64 } 65