117 lines
3.3 KiB
C
117 lines
3.3 KiB
C
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/*
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* Copyright (c) 1980 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char sccsid[] = "@(#)getinp.c 5.4 (Berkeley) 2/28/91";
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#endif /* not lint */
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# include <stdio.h>
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# include <ctype.h>
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# define reg register
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# define LINE 70
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static char buf[257];
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getinp(prompt, list)
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char *prompt, *list[]; {
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reg int i, n_match, match;
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char *sp;
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int plen;
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static int comp();
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for (;;) {
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inter:
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printf(prompt);
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for (sp = buf; (*sp=getchar()) != '\n'; )
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if (*sp == -1) /* check for interupted system call */
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goto inter;
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else if (sp != buf || *sp != ' ')
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sp++;
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if (buf[0] == '?' && buf[1] == '\n') {
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printf("Valid inputs are: ");
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for (i = 0, match = 18; list[i]; i++) {
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if ((match+=(n_match=strlen(list[i]))) > LINE) {
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printf("\n\t");
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match = n_match + 8;
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}
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if (*list[i] == '\0') {
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match += 8;
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printf("<RETURN>");
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}
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else
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printf(list[i]);
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if (list[i+1])
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printf(", ");
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else
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putchar('\n');
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match += 2;
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}
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continue;
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}
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*sp = '\0';
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for (sp = buf; *sp; sp++)
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if (isupper(*sp))
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*sp = tolower(*sp);
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for (i = n_match = 0; list[i]; i++)
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if (comp(list[i])) {
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n_match++;
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match = i;
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}
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if (n_match == 1)
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return match;
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else if (buf[0] != '\0')
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printf("Illegal response: \"%s\". Use '?' to get list of valid answers\n", buf);
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}
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}
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static
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comp(s1)
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char *s1; {
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reg char *sp, *tsp, c;
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if (buf[0] != '\0')
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for (sp = buf, tsp = s1; *sp; ) {
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c = isupper(*tsp) ? tolower(*tsp) : *tsp;
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tsp++;
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if (c != *sp++)
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return 0;
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}
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else if (*s1 != '\0')
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return 0;
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return 1;
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}
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