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Annotation of 43BSDReno/games/battlestar/getcom.c, revision 1.1.1.1

1.1       root        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: (1) source distributions retain this entire copyright
                      7:  * notice and comment, and (2) distributions including binaries display
                      8:  * the following acknowledgement:  ``This product includes software
                      9:  * developed by the University of California, Berkeley and its contributors''
                     10:  * in the documentation or other materials provided with the distribution
                     11:  * and in all advertising materials mentioning features or use of this
                     12:  * software. Neither the name of the University nor the names of its
                     13:  * contributors may be used to endorse or promote products derived
                     14:  * from this software without specific prior written permission.
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     18:  */
                     19: 
                     20: #ifndef lint
                     21: static char sccsid[] = "@(#)getcom.c   5.3 (Berkeley) 6/1/90";
                     22: #endif /* not lint */
                     23: 
                     24: #include <stdio.h>
                     25: #include <ctype.h>
                     26: 
                     27: char *
                     28: getcom(buf, size, prompt, error)
                     29:        char *buf;
                     30:        int size;
                     31:        char *prompt, *error;
                     32: {
                     33:        for (;;) {
                     34:                fputs(prompt, stdout); 
                     35:                if (fgets(buf, size, stdin) == 0) {
                     36:                        clearerr(stdin);
                     37:                        continue;
                     38:                }
                     39:                while (isspace(*buf))
                     40:                        buf++;
                     41:                if (*buf)
                     42:                        break;
                     43:                if (error)
                     44:                        puts(error);
                     45:        }
                     46:        return (buf);
                     47: }
                     48: 
                     49: 
                     50: /*
                     51:  * shifts to UPPERCASE if flag > 0, lowercase if flag < 0,
                     52:  * and leaves it unchanged if flag = 0
                     53:  */
                     54: char *
                     55: getword(buf1, buf2, flag)
                     56:        register char *buf1, *buf2;
                     57:        register flag;
                     58: {
                     59:        while (isspace(*buf1))
                     60:                buf1++;
                     61:        if (*buf1 != ',') {
                     62:                if (!*buf1) {
                     63:                        *buf2 = 0;
                     64:                        return (0);
                     65:                }
                     66:                while (*buf1 && !isspace(*buf1) && *buf1 != ',')
                     67:                        if (flag < 0)
                     68:                                if (isupper(*buf1))
                     69:                                        *buf2++ = tolower(*buf1++);
                     70:                                else
                     71:                                        *buf2++ = *buf1++;
                     72:                        else if (flag > 0)
                     73:                                if (islower(*buf1))
                     74:                                        *buf2++ = toupper(*buf1++);
                     75:                                else
                     76:                                        *buf2++ = *buf1++;
                     77:                        else
                     78:                                *buf2++ = *buf1++;
                     79:        } else
                     80:                *buf2++ = *buf1++;
                     81:        *buf2 = 0;
                     82:        while (isspace(*buf1))
                     83:                buf1++;
                     84:        return (*buf1 ? buf1 : 0);
                     85: }

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