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/*
* This file has been modified for the cdrkit suite.
*
* The behaviour and appearence of the program code below can differ to a major
* extent from the version distributed by the original author(s).
*
* For details, see Changelog file distributed with the cdrkit package. If you
* received this file from another source then ask the distributing person for
* a log of modifications.
*
*/
/* @(#)io.c 1.19 98/10/10 Copyright 1988 J. Schilling */
/*
* Copyright (c) 1988 J. Schilling
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; see the file COPYING. If not, write to the Free Software
* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <mconfig.h>
#include <stdio.h>
#include <standard.h>
#include <vadefs.h>
#include <stdxlib.h>
#include <strdefs.h>
#include <utypes.h>
#include <schily.h>
#include <ctype.h>
struct disk {
int dummy;
};
static char *skipwhite(const char *);
static void prt_std(char *, long, long, long, struct disk *);
BOOL cvt_std(char *, long *, long, long, struct disk *);
extern BOOL getvalue(char *, long *, long, long,
void (*)(char *, long, long, long, struct disk *),
BOOL (*)(char *, long *, long, long, struct disk *),
struct disk *);
extern BOOL getlong(char *, long *, long, long);
extern BOOL getint(char *, int *, int, int);
extern BOOL yes(char *, ...);
static
char *skipwhite(const char *s)
{
register const Uchar *p = (const Uchar *)s;
while (*p) {
if (!isspace(*p))
break;
p++;
}
return ((char *)p);
}
/* ARGSUSED */
BOOL
cvt_std(char *linep, long *lp, long mini, long maxi, struct disk *dp)
{
long l = -1L;
/* printf("cvt_std(\"%s\", %d, %d, %d);\n", linep, *lp, mini, maxi);*/
if (linep[0] == '?') {
printf("Enter a number in the range from %ld to %ld\n",
mini, maxi);
printf("The default radix is 10\n");
printf("Precede number with '0x' for hexadecimal or with '0' for octal\n");
printf("Shorthands are:\n");
printf("\t'^' for minimum value (%ld)\n", mini);
printf("\t'$' for maximum value (%ld)\n", maxi);
printf("\t'+' for incrementing value to %ld\n", *lp + 1);
printf("\t'-' for decrementing value to %ld\n", *lp - 1);
return (FALSE);
}
if (linep[0] == '^' && *skipwhite(&linep[1]) == '\0') {
l = mini;
} else if (linep[0] == '$' && *skipwhite(&linep[1]) == '\0') {
l = maxi;
} else if (linep[0] == '+' && *skipwhite(&linep[1]) == '\0') {
if (*lp < maxi)
l = *lp + 1;
} else if (linep[0] == '-' && *skipwhite(&linep[1]) == '\0') {
if (*lp > mini)
l = *lp - 1;
} else if (*astol(linep, &l)) {
printf("Not a number: '%s'.\n", linep);
return (FALSE);
}
if (l < mini || l > maxi) {
printf("'%s' is out of range.\n", linep);
return (FALSE);
}
*lp = l;
return (TRUE);
}
/* ARGSUSED */
static void
prt_std(char *s, long l, long mini, long maxi, struct disk *dp)
{
printf("%s %ld (%ld - %ld)/<cr>:", s, l, mini, maxi);
}
BOOL getvalue(char *s, long *lp, long mini, long maxi,
void (*prt)(char *, long, long, long, struct disk *),
BOOL (*cvt)(char *, long *, long, long, struct disk *),
struct disk *dp)
{
char line[128];
char *linep;
for(;;) {
(*prt)(s, *lp, mini, maxi, dp);
flush();
line[0] = '\0';
if (rols_getline(line, 80) == EOF)
exit(EX_BAD);
linep = skipwhite(line);
/*
* Nicht initialisierte Variablen
* duerfen nicht uebernommen werden
*/
if (linep[0] == '\0' && *lp != -1L)
return (FALSE);
if (strlen(linep) == 0) {
/* Leere Eingabe */
/* EMPTY */
} else if ((*cvt)(linep, lp, mini, maxi, dp))
return (TRUE);
}
/* NOTREACHED */
}
BOOL getlong(char *s, long *lp, long mini, long maxi)
{
return (getvalue(s, lp, mini, maxi, prt_std, cvt_std, (void *)0));
}
BOOL getint(char *s, int *ip, int mini, int maxi)
{
long l = *ip;
BOOL ret;
ret = getlong(s, &l, (long)mini, (long)maxi);
*ip = l;
return (ret);
}
/* VARARGS1 */
BOOL yes(char *form, ...)
{
va_list args;
char okbuf[10];
again:
va_start(args, form);
vprintf(form, args);
va_end(args);
flush();
if (rols_getline(okbuf, sizeof(okbuf)) == EOF)
exit(EX_BAD);
if (okbuf[0] == '?') {
printf("Enter 'y', 'Y', 'yes' or 'YES' if you agree with the previous asked question.\n");
printf("All other input will be handled as if the question has beed answered with 'no'.\n");
goto again;
}
if(streql(okbuf, "y") || streql(okbuf, "yes") ||
streql(okbuf, "Y") || streql(okbuf, "YES"))
return(TRUE);
else
return(FALSE);
}
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