1 /*- 2 * Copyright (c) 1992, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static char sccsid[] = "@(#)ex_delete.c 8.14 (Berkeley) 8/17/94"; 36 #endif /* not lint */ 37 38 #include <sys/types.h> 39 #include <sys/queue.h> 40 #include <sys/time.h> 41 42 #include <bitstring.h> 43 #include <limits.h> 44 #include <signal.h> 45 #include <stdio.h> 46 #include <termios.h> 47 48 #include "compat.h" 49 #include <db.h> 50 #include <regex.h> 51 52 #include "vi.h" 53 #include "excmd.h" 54 55 /* 56 * ex_delete: [line [,line]] d[elete] [buffer] [count] [flags] 57 * 58 * Delete lines from the file. 59 */ 60 int 61 ex_delete(sp, ep, cmdp) 62 SCR *sp; 63 EXF *ep; 64 EXCMDARG *cmdp; 65 { 66 recno_t lno; 67 68 /* 69 * !!! 70 * Historically, lines deleted in ex were not placed in the numeric 71 * buffers. We follow historic practice so that we don't overwrite 72 * vi buffers accidentally. 73 */ 74 if (cut(sp, ep, 75 F_ISSET(cmdp, E_BUFFER) ? &cmdp->buffer : NULL, 76 &cmdp->addr1, &cmdp->addr2, CUT_LINEMODE)) 77 return (1); 78 79 /* Delete the lines. */ 80 if (delete(sp, ep, &cmdp->addr1, &cmdp->addr2, 1)) 81 return (1); 82 83 /* Set the cursor to the line after the last line deleted. */ 84 sp->lno = cmdp->addr1.lno; 85 86 /* Or the last line in the file if deleted to the end of the file. */ 87 if (file_lline(sp, ep, &lno)) 88 return (1); 89 if (sp->lno > lno) 90 sp->lno = lno; 91 return (0); 92 } 93