#!/usr/bin/perl --
use strict; use warnings;
use Carp::Always;
my $curWidth = my $curLength = 1;
my $blah  = q{-0.137 + (0.00479 / (W/0.9)) + (2.5593 * (W/0.9 ) ,0.045,0 };
print EvalPolynominal( $blah );


sub EvalPolynominal {
	#first parameter gives the polynominal string
	#second parameter gives the min-des width
	#third parameter gives the short-line length
	
	my $polynominal = shift;
	my $curWidth    = shift;
	my $curLength   = shift;
	
	$polynominal =~ s/W/$curWidth/g ;#replace W with current value of min width
	$polynominal =~ s/L/$curLength/g ;#replace L with current value of min Length
	return eval ($polynominal);
}
__END__
Use of uninitialized value $curWidth in substitution (s///) at blah line 18.
	main::EvalPolynominal('-0.137 + (0.00479 / (W/0.9)) + (2.5593 * (W/0.9 ) ,0.045,0 ') called at blah line 6
Having no space between pattern and following word is deprecated at (eval 1) line 1.
	eval '-0.137 + (0.00479 / (/0.9)) + (2.5593 * (/0.9 ) ,0.045,0 
;' called at blah line 20
	main::EvalPolynominal('-0.137 + (0.00479 / (W/0.9)) + (2.5593 * (W/0.9 ) ,0.045,0 ') called at blah line 6