Aion-Run
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$param{$key} = \@args;
}
$pkg->new(%param)
}
1;
__END__
=encoding utf-8
=head1 NAME
Aion::Run - role for console commands
=head1 VERSION
0.0.3
=head1 SYNOPSIS
File lib/Scripts/MyScript.pm:
package Scripts::MyScript;
use common::sense;
use List::Util qw/reduce/;
use Aion::Format qw/trappout/;
use Aion;
with qw/Aion::Run/;
# Operands for calculations
has operands => (is => "ro+", isa => ArrayRef[Int], arg => "-a", init_arg => "operand");
# Operator for calculations
has operator => (is => "ro+", isa => Enum[qw!+ - * /!], arg => 1);
#@run math/calc âCalculateâ
sub calculate_sum {
my ($self) = @_;
printf "Result: %g\n", reduce {
given($self->operator) {
$a+$b when /\+/;
$a-$b when /\-/;
$a*$b when /\*/;
$a/$b when /\//;
}
} @{$self->operands};
}
1;
use Aion::Format qw/trappout/;
use lib "lib";
use Scripts::MyScript;
trappout { Scripts::MyScript->new_from_args([qw/-a 1 -a 2 -a 3 +/])->calculate_sum } # => Result: 6\n
trappout { Scripts::MyScript->new_from_args([qw/--operand=4 * --operand=2/])->calculate_sum } # => Result: 8\n
=head1 DESCRIPTION
The C<Aion::Run> role implements the C<arg> aspect for installing features from command line parameters.
=over
=item * C<< arg =E<gt> "-X" >> is a named parameter. You can use either the shortcut B<-X> or the feature name with B<-->.
=item * C<< arg =E<gt> natural >> is an ordinal parameter. C<1+>.
=item * C<< arg =E<gt> 0 >> - all unnamed parameters. Used with C<< isa =E<gt> ArrayRef >>.
=back
=head1 METHODS
=head2 new_from_args ($pkg, $args)
Constructor. It creates a script object with command line options.
package ArgExample {
use Aion;
with qw/Aion::Run/;
has args => (is => "ro+", isa => ArrayRef[Str], arg => 0);
has arg => (is => "ro+", isa => ArrayRef[Str], arg => '-a');
has arg1 => (is => "ro+", isa => Str, arg => 1);
has arg2 => (is => "ro+", isa => Str, init_arg => '_arg2', arg => 2);
has arg_1 => (is => "ro+", isa => Str, init_arg => '_arg_1', arg => -1);
has arg_2 => (is => "ro+", isa => Str, arg => -2);
}
my $ex = ArgExample->new_from_args([qw/1 -a 5 2 --arg=6 -2 5 --_arg_1=4/]);
$ex->arg1 # => 1
$ex->arg2 # => 2
$ex->arg_1 # => 4
$ex->arg_2 # => 5
$ex->args # --> [1, 2]
$ex->arg # --> [5, 6]
=head1 SEE ALSO
=over
=item * L<Aion>
=back
=head1 AUTHOR
Yaroslav O. Kosmina L<mailto:dart@cpan.org>
=head1 LICENSE
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