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/* getnum.c - get number in a given interval, get length with units
Copyright 1988-2017 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
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; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
#include <config.h>
#include <stdio.h>
#include <stdlib.h> /* abort() is wanted */
#include "argmatch.h"
#include "getnum.h"
#include "quotearg.h"
#include "routines.h"
#include "error.h"
/************************************************************************
* Get a length/integer in an interval *
************************************************************************/
int
get_integer_in_range (const char * option, const char * arg,
int min, int max, enum range_type_e range_type)
{
char buf [256];
int res;
if ((sscanf (arg, "%d%255s", &res, buf) != 1))
error (EXIT_FAILURE, 0, _("invalid argument `%s' for `%s'"),
quotearg (arg), option);
buf [0] = '\0'; /* means no error */
switch (range_type)
{
case range_min:
if (res < min)
sprintf (buf, "%d <= n", min);
break;
case range_min_strict:
if (res <= min)
sprintf (buf, "%d < n", min);
break;
case range_max:
if (res > max)
sprintf (buf, "n <= %d", max);
break;
case range_max_strict:
if (res >= max)
sprintf (buf, "n <= %d", max);
break;
case range_min_max:
if ((res < min) || (res > max))
sprintf (buf, "%d <= n <= %d", min, max);
break;
case range_min_strict_max:
if ((res <= min) || (res > max))
sprintf (buf, "%d < n <= %d", min, max);
break;
case range_min_max_strict:
if ((res < min) || (res >= max))
sprintf (buf, "%d <= n < %d", min, max);
break;
case range_min_strict_max_strict:
if ((res < min) || (res >= max))
sprintf (buf, "%d < n < %d", min, max);
break;
case range_no_limit:
break;
default:
abort ();
break;
}
if (buf [0])
{
error (0, 0,
_("invalid argument `%s' for `%s'"), quotearg (arg), option);
fprintf (stderr,
_("Valid arguments are integers n such that: %s\n"), buf);
exit (EXIT_FAILURE);
}
return res;
}
/*
* Return a float in a given range, with a specified unit
*/
static float
get_float_in_range (const char * option, const char * arg,
const char * const * args_list,
float * types_list,
float min, float max,
const char * unit, enum range_type_e range_type)
{
float res;
char buf[512];
switch (sscanf (arg, "%f%255s", &res, buf))
{
case 2:
/* Multiply by the given unit */
res *= XARGMATCH (option, buf, args_list, types_list);
break;
case 1:
break;
default:
error (EXIT_FAILURE, 0, _("invalid argument `%s' for `%s'"),
quotearg (arg), option);
break;
}
/* Divide by the desired unit */
res /= types_list [__xargmatch_internal ("internal conversion", unit,
args_list,
(const char *) types_list,
sizeof (*types_list),
(argmatch_exit_fn) abort,
true)];
buf [0] = '\0'; /* means no error */
/* Check that it is in the expected range */
switch (range_type)
{
case range_min:
if (res < min)
sprintf (buf, "%.1f%16s <= f", (double) min, unit);
break;
case range_min_strict:
if (res <= min)
sprintf (buf, "%.1f%s < f", (double) min, unit);
break;
case range_max:
if (res > max)
sprintf (buf, "f <= %.1f%s", (double) max, unit);
break;
case range_max_strict:
if (res >= max)
sprintf (buf, "f <= %.1f%s", (double) max, unit);
break;
case range_min_max:
if ((res < min) || (res > max))
sprintf (buf, "%.1f%s <= f <= %.1f%s", (double) min, unit, (double) max, unit);
break;
case range_min_strict_max:
if ((res <= min) || (res > max))
sprintf (buf, "%.1f%s < f <= %.1f%s", (double) min, unit, (double) max, unit);
break;
case range_min_max_strict:
if ((res < min) || (res >= max))
sprintf (buf, "%.1f%s <= f < %.1f%s", (double) min, unit, (double) max, unit);
break;
case range_min_strict_max_strict:
if ((res <= min) || (res >= max))
sprintf (buf, "%.1f%s < f < %.1f%s", (double) min, unit, (double) max, unit);
break;
case range_no_limit:
break;
default:
abort ();
break;
}
if (buf [0])
{
error (0, 0,
_("invalid argument `%s' for `%s'"), quotearg (arg), option);
fprintf (stderr,
_("Valid arguments are floats f such that: %s\n"), buf);
exit (EXIT_FAILURE);
}
return res;
}
/*
* Return the ratio to inch
*/
static const char *const length_args[] =
{
"points", "pts",
"inchs",
"cm", "centimeters",
0
};
static float length_types[] =
{
1.0, 1.0,
72.0,
(72 / 2.54f), (72 / 2.54f)
};
/*
* Return a length in the desired unit
*/
float
get_length (const char * option, const char * arg, float min, float max,
const char * unit, enum range_type_e range_type)
{
return get_float_in_range (option, arg, length_args, length_types,
min, max, unit, range_type);
}
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