1 /* 2 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 7 /* All Rights Reserved */ 8 9 /* 10 * Copyright (c) 1980 Regents of the University of California. 11 * All rights reserved. The Berkeley software License Agreement 12 * specifies the terms and conditions for redistribution. 13 */ 14 15 #pragma ident "%Z%%M% %I% %E% SMI" 16 17 #include "refer..c" 18 19 static char ahead[1024]; 20 static int peeked = 0; 21 static char *noteof = (char *)1; 22 23 char * 24 input(char *s) 25 { 26 if (peeked) { 27 peeked = 0; 28 if (noteof == 0) 29 return (0); 30 strcpy(s, ahead); 31 return (s); 32 } 33 return (fgets(s, 1000, in)); 34 } 35 36 char * 37 lookat(void) 38 { 39 if (peeked) 40 return (ahead); 41 noteof = input(ahead); 42 peeked = 1; 43 return (noteof); 44 } 45 46 void 47 addch(char *s, char c) 48 { 49 while (*s) 50 s++; 51 *s++ = c; 52 *s = 0; 53 } 54