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# /=====================================================================\ #
# | LaTeXML::Common::Float | #
# | Representation of floating point objects | #
# |=====================================================================| #
# | Part of LaTeXML: | #
# | Public domain software, produced as part of work done by the | #
# | United States Government & not subject to copyright in the US. | #
# |---------------------------------------------------------------------| #
# | Bruce Miller <bruce.miller@nist.gov> #_# | #
# | http://dlmf.nist.gov/LaTeXML/ (o o) | #
# \=========================================================ooo==U==ooo=/ #
package LaTeXML::Common::Float;
use LaTeXML::Global;
use strict;
use warnings;
use base qw(LaTeXML::Common::Number);
use base qw(Exporter);
our @EXPORT = (qw(&Float floatformat));
#======================================================================
# Exported constructor.
sub Float {
my ($number) = @_;
return LaTeXML::Common::Float->new($number); }
sub new {
my ($class, $number) = @_;
$number = ToString($number) if ref $number;
return bless [$number || "0"], $class; }
#======================================================================
# Strictly speaking, Float isn't part of TeX, but it's handy.
sub toString {
my ($self) = @_;
return floatformat($$self[0]); }
sub multiply {
my ($self, $other) = @_;
return (ref $self)->new($self->valueOf * (ref $other ? $other->valueOf : $other)); }
sub stringify {
my ($self) = @_;
return "Float[" . $$self[0] . "]"; }
# Utility for formatting sane numbers.
sub floatformat {
my ($n) = @_;
my $s = sprintf("%.5f", $n);
$s =~ s/0+$// if $s =~ /\./;
# $s =~ s/\.$//;
$s =~ s/\.$/.0/; # Seems TeX prints .0 which in odd corner cases, people use?
return $s; }
#======================================================================
1;
__END__
=pod
=head1 NAME
C<LaTeXML::Common::Float> - representation of floating point numbers;
extends L<LaTeXML::Common::Number>.
=head2 Exported functions
=over 4
=item C<< $number = Float($num); >>
Creates a floating point object representing C<$num>;
This is not part of TeX, but useful.
=back
=head1 AUTHOR
Bruce Miller <bruce.miller@nist.gov>
=head1 COPYRIGHT
Public domain software, produced as part of work done by the
United States Government & not subject to copyright in the US.
=cut
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