freebsd-src/games/trek/getpar.c
Jordan K. Hubbard 554eb505f8 Bring in the 4.4 Lite games directory, modulo man page changes and segregation
of the x11 based games.  I'm not going to tag the originals with bsd_44_lite
and do this in two stages since it's just not worth it for this collection,
and I've got directory renames to deal with that way.  Bleah.
Submitted by:	jkh
1994-09-04 04:03:31 +00:00

298 lines
5.3 KiB
C

/*
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char sccsid[] = "@(#)getpar.c 8.1 (Berkeley) 5/31/93";
#endif /* not lint */
# include <stdio.h>
# include "getpar.h"
/**
** get integer parameter
**/
getintpar(s)
char *s;
{
register int i;
int n;
while (1)
{
if (testnl() && s)
printf("%s: ", s);
i = scanf("%d", &n);
if (i < 0)
exit(1);
if (i > 0 && testterm())
return (n);
printf("invalid input; please enter an integer\n");
skiptonl(0);
}
}
/**
** get floating parameter
**/
double getfltpar(s)
char *s;
{
register int i;
double d;
while (1)
{
if (testnl() && s)
printf("%s: ", s);
i = scanf("%lf", &d);
if (i < 0)
exit(1);
if (i > 0 && testterm())
return (d);
printf("invalid input; please enter a double\n");
skiptonl(0);
}
}
/**
** get yes/no parameter
**/
struct cvntab Yntab[] =
{
"y", "es", (int (*)())1, 0,
"n", "o", (int (*)())0, 0,
0
};
getynpar(s)
char *s;
{
struct cvntab *r;
r = getcodpar(s, Yntab);
return ((int) r->value);
}
/**
** get coded parameter
**/
struct cvntab *getcodpar(s, tab)
char *s;
struct cvntab tab[];
{
char input[100];
register struct cvntab *r;
int flag;
register char *p, *q;
int c;
int f;
flag = 0;
while (1)
{
flag |= (f = testnl());
if (flag)
printf("%s: ", s);
if (f)
cgetc(0); /* throw out the newline */
scanf("%*[ \t;]");
if ((c = scanf("%[^ \t;\n]", input)) < 0)
exit(1);
if (c == 0)
continue;
flag = 1;
/* if command list, print four per line */
if (input[0] == '?' && input[1] == 0)
{
c = 4;
for (r = tab; r->abrev; r++)
{
concat(r->abrev, r->full, input);
printf("%14.14s", input);
if (--c > 0)
continue;
c = 4;
printf("\n");
}
if (c != 4)
printf("\n");
continue;
}
/* search for in table */
for (r = tab; r->abrev; r++)
{
p = input;
for (q = r->abrev; *q; q++)
if (*p++ != *q)
break;
if (!*q)
{
for (q = r->full; *p && *q; q++, p++)
if (*p != *q)
break;
if (!*p || !*q)
break;
}
}
/* check for not found */
if (!r->abrev)
{
printf("invalid input; ? for valid inputs\n");
skiptonl(0);
}
else
return (r);
}
}
/**
** get string parameter
**/
getstrpar(s, r, l, t)
char *s;
char *r;
int l;
char *t;
{
register int i;
char format[20];
register int f;
if (t == 0)
t = " \t\n;";
(void)sprintf(format, "%%%d[^%s]", l, t);
while (1)
{
if ((f = testnl()) && s)
printf("%s: ", s);
if (f)
cgetc(0);
scanf("%*[\t ;]");
i = scanf(format, r);
if (i < 0)
exit(1);
if (i != 0)
return;
}
}
/**
** test if newline is next valid character
**/
testnl()
{
register char c;
while ((c = cgetc(0)) != '\n')
if ((c >= '0' && c <= '9') || c == '.' || c == '!' ||
(c >= 'A' && c <= 'Z') ||
(c >= 'a' && c <= 'z') || c == '-')
{
ungetc(c, stdin);
return(0);
}
ungetc(c, stdin);
return (1);
}
/**
** scan for newline
**/
skiptonl(c)
char c;
{
while (c != '\n')
if (!(c = cgetc(0)))
return;
ungetc('\n', stdin);
return;
}
/**
** test for valid terminator
**/
testterm()
{
register char c;
if (!(c = cgetc(0)))
return (1);
if (c == '.')
return (0);
if (c == '\n' || c == ';')
ungetc(c, stdin);
return (1);
}
/*
** TEST FOR SPECIFIED DELIMETER
**
** The standard input is scanned for the parameter. If found,
** it is thrown away and non-zero is returned. If not found,
** zero is returned.
*/
readdelim(d)
char d;
{
register char c;
while (c = cgetc(0))
{
if (c == d)
return (1);
if (c == ' ')
continue;
ungetc(c, stdin);
break;
}
return (0);
}