-#include <assert.h>
-#include <stdio.h>
-#include "scalar.hh"
-
-Scalar::Scalar (Rational r)
- :String (r)
-{
-
-}
-
-Scalar::operator Rational()
-{
- int p = index_i ('/');
- if (p == -1)
- return int (*this);
-
- String s2 = right_str (len()-p-1);
- String s1 = left_str (p);
-
- return Rational (s1.value_i(), s2.value_i ());
-}
-
-bool
-Scalar::isnum()
-{
- int conv = false;
- if (len())
- {
- long l =0;
- conv = sscanf (strh_.ch_C(), "%ld", &l);
- }
- return len() && conv;
-}
-
-Scalar::operator Real()
-{
- assert (isnum());
- return value_f();
-}
-
-Scalar::operator int()
-{
- assert (isnum());
- return value_i();
-}
-
-
-Scalar::operator bool() const
-{
- if (!len())
- return false;
- if (*this == "0")
- return false;
- String u (*this);
- if ( u.upper_str() == "FALSE")
- return false;
- return true;
-}