1 /*- 2 * Copyright (c) 1993 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 * from: @(#)gets.c 8.1 (Berkeley) 6/11/93 34 * $Id: gets.c,v 1.4 1994/08/22 21:56:07 brezak Exp $ 35 */ 36 37 #include "stand.h" 38 39 void 40 gets(buf) 41 char *buf; 42 { 43 register int c; 44 register char *lp; 45 46 for (lp = buf;;) 47 switch (c = getchar() & 0177) { 48 case '\n': 49 case '\r': 50 *lp = '\0'; 51 putchar('\n'); 52 return; 53 case '\b': 54 case '\177': 55 if (lp > buf) { 56 lp--; 57 putchar('\b'); 58 putchar(' '); 59 putchar('\b'); 60 } 61 break; 62 case '#': 63 if (lp > buf) 64 --lp; 65 break; 66 case 'r'&037: { 67 register char *p; 68 69 putchar('\n'); 70 for (p = buf; p < lp; ++p) 71 putchar(*p); 72 break; 73 } 74 case '@': 75 case 'u'&037: 76 case 'w'&037: 77 lp = buf; 78 putchar('\n'); 79 break; 80 default: 81 *lp++ = c; 82 putchar(c); 83 } 84 /*NOTREACHED*/ 85 } 86