File Coverage

blib/lib/Template/Sandbox/NumberFunctions.pm

Criterion	Covered	Total	%
statement	15	15	100.0
branch			n/a
condition			n/a
subroutine	5	5	100.0
pod			n/a
total	20	20	100.0

package Template::Sandbox::NumberFunctions;
# ABSTRACT: Basic number functions library for Template::Sandbox.

use strict;
use warnings;

use base 'Template::Sandbox::Library';

use Template::Sandbox qw/:function_sugar/;

$Template::Sandbox::NumberFunctions::VERSION = '1.04_01';

#  From perlfaq5: add thousands-commas to number.
#  Yes it doesn't respect locale.
sub _commify
{
    local $_  = shift;
    1 while s/^([-+]?\d+)(\d{3})/$1,$2/o;
    return $_;
}

__PACKAGE__->set_library_functions(
    int      => ( one_arg sub { int( $_[ 0 ] ) } ),
    round    => ( one_arg
        sub
        {
            ( int( $_[ 0 ] * 10 ) % 10 >= 5 ) ?
            ( int( $_[ 0 ] ) + 1 ) :
            int( $_[ 0 ] )
        } ),
    abs      => ( one_arg sub { abs( $_[ 0 ] ) } ),

    #  Pretty numeric formatting.
    numeric  => ( one_arg \&_commify ),
    currency => ( one_arg
        sub { _commify( sprintf( '%.2f', $_[ 0 ] ) ) } ),
    accountant_currency => ( one_arg
        sub
        {
            ( $_[ 0 ] < 0 ) ?
                ( '(' . _commify( sprintf( '%.2f', abs( $_[ 0 ] ) ) ) . ')' ) :
                ( _commify( sprintf( '%.2f', $_[ 0 ] ) ) )
        } ),
    decimal  => ( two_args sub { sprintf( '%.' . $_[ 1 ] . 'f', $_[ 0 ] ) } ),

    exp     => ( one_arg sub { exp( $_[ 0 ] ) } ),
    log     => ( one_arg sub { log( $_[ 0 ] ) } ),
    pow     => ( two_args sub { $_[ 0 ] ** $_[ 1 ] } ),
    sqrt    => ( one_arg sub { sqrt( $_[ 0 ] ) } ),

    rand    => ( one_arg inconstant
        sub
        {
            ref( $_[ 0 ] ) ?
            $_[ 0 ]->[ int( rand( $#{$_[ 0 ]} + 1 ) ) ] :
            rand( $_[ 0 ] )
        } ),
    srand   => ( one_arg inconstant sub { srand( $_[ 0 ] ) } ),

    max     => ( two_args sub { $_[ 0 ] > $_[ 1 ] ? $_[ 0 ] : $_[ 1 ] } ),
    min     => ( two_args sub { $_[ 0 ] < $_[ 1 ] ? $_[ 0 ] : $_[ 1 ] } ),
    );

__PACKAGE__->set_library_tags(
    'maths'    => [ qw/exp log pow sqrt/ ],
    'display'  => [ qw/numeric currency accountant_currency decimal/ ],
    );

1;

__END__