1 /* 2 * Copyright (c) 1992 OMRON Corporation. 3 * Copyright (c) 1992, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * OMRON Corporation. 8 * 9 * %sccs.include.redist.c% 10 * 11 * @(#)getline.c 8.1 (Berkeley) 06/10/93 12 */ 13 14 /* 15 * getline -- simple getline function 16 * by A.Fujita, Dec-11-1992 17 */ 18 19 int 20 getline(prompt, buff) 21 char *prompt, *buff; 22 { 23 register int c; 24 register char *p = buff; 25 26 printf("%s", prompt); 27 28 for(;;) { 29 c = cngetc() & 0x7F; 30 31 switch (c) { 32 case 0x0a: 33 case 0x0d: 34 cnputc('\r'); 35 cnputc('\n'); 36 *p = '\0'; 37 goto outloop; 38 39 case 0x08: 40 case 0x7f: 41 if (p > buff) { 42 cnputc(0x08); 43 cnputc(' '); 44 cnputc(0x08); 45 p--; 46 } 47 break; 48 49 default: 50 *p++ = c; 51 cnputc(c); 52 break; 53 } 54 } 55 56 outloop: 57 return(strlen(buff)); 58 } 59