1 /* 2 * Copyright (c) 1983 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 */ 17 18 #ifndef lint 19 static char sccsid[] = "@(#)getcom.c 5.2 (Berkeley) 06/19/88"; 20 #endif /* not lint */ 21 22 #include <stdio.h> 23 #include <ctype.h> 24 25 char * 26 getcom(buf, size, prompt, error) 27 char *buf; 28 int size; 29 char *prompt, *error; 30 { 31 for (;;) { 32 fputs(prompt, stdout); 33 if (fgets(buf, size, stdin) == 0) { 34 clearerr(stdin); 35 continue; 36 } 37 while (isspace(*buf)) 38 buf++; 39 if (*buf) 40 break; 41 if (error) 42 puts(error); 43 } 44 return (buf); 45 } 46 47 48 /* 49 * shifts to UPPERCASE if flag > 0, lowercase if flag < 0, 50 * and leaves it unchanged if flag = 0 51 */ 52 char * 53 getword(buf1, buf2, flag) 54 register char *buf1, *buf2; 55 register flag; 56 { 57 while (isspace(*buf1)) 58 buf1++; 59 if (*buf1 != ',') { 60 if (!*buf1) { 61 *buf2 = 0; 62 return (0); 63 } 64 while (*buf1 && !isspace(*buf1) && *buf1 != ',') 65 if (flag < 0) 66 if (isupper(*buf1)) 67 *buf2++ = tolower(*buf1++); 68 else 69 *buf2++ = *buf1++; 70 else if (flag > 0) 71 if (islower(*buf1)) 72 *buf2++ = toupper(*buf1++); 73 else 74 *buf2++ = *buf1++; 75 else 76 *buf2++ = *buf1++; 77 } else 78 *buf2++ = *buf1++; 79 *buf2 = 0; 80 while (isspace(*buf1)) 81 buf1++; 82 return (*buf1 ? buf1 : 0); 83 } 84