NAME

Term::CLI::Argument::Number - base class for numerical arguments in Term::CLI

VERSION

version 0.052003

SYNOPSIS

use Term::CLI::Argument::Number;

my $arg = Term::CLI::Argument::Number->new(
               name => 'arg1',
               min => 1
               max => 2
               inclusive => 1
          );

DESCRIPTION

Base class for numerical arguments in Term::CLI(3p). This class cannot be used directly, but should be extended by sub-classes.

CLASS STRUCTURE

Inherits from:

Term::CLI::Argument(3p).

Consumes:

None.

CONSTRUCTORS

new ( name => VARNAME, ... )

Create a new Term::CLI::Argument::Number object and return a reference to it.

The name attribute is required.

Other attributes that are recognised:

min => NUM

The minimum valid value (by default an inclusive boundary, but see inclusive below.

max => NUM

The maximum valid value (by default an inclusive boundary, but see inclusive below.

inclusive => BOOLEAN

Default is 1 (true). Indicates whether minimum/maximum boundaries are inclusive or exclusive.

ACCESSORS

Inherited from Term::CLI::Argument(3p). Additionally, the following are defined:

min ( NUMBER )

max ( NUMBER )

Lower and upper boundaries, resp.

inclusive ( BOOL )

Boolean indicating whether the boundaries are inclusive.

has_min

has_max

Booleans, indicate whether min and max have been set, resp.

clear_min

clear_max

Clear the min and max limits, resp.

METHODS

Inherited from Term::CLI::Argument(3p).

Additionally:

validate ( VALUE )

The validate method uses the coerce_value method to convert VALUE to a suitable number and then checks any boundaries.

coerce_value ( VALUE )

This method must be overridden by sub-classes.

It will be called with a single argument (the VALUE) and is supposed to return the converted number. If the number is not valid, it should return undef.

SEE ALSO

Term::CLI::Argument(3p), Term::CLI(3p).

AUTHOR

Steven Bakker <sbakker@cpan.org>, 2018.

COPYRIGHT AND LICENSE

Copyright (c) 2018 Steven Bakker

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See "perldoc perlartistic."

This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.