Ubuntu Manpages

Config::Model::Describe

Provide a description of a node element

version 2.082

 use Config::Model;
 # define configuration tree object
 my $model = Config::Model->new;
  $model->create_config_class(
    name    => "Foo",
    element => [
        [qw/foo bar/] => {
            type       => 'leaf',
            value_type => 'string'
        },
    ]
 );
 $model ->create_config_class (
    name => "MyClass",
    element => [
        [qw/foo bar/] => {
            type       => 'leaf',
            value_type => 'string'
        },
        hash_of_nodes => {
            type       => 'hash',     # hash id
            index_type => 'string',
            cargo      => {
                type              => 'node',
                config_class_name => 'Foo'
            },
        },
    ],
 ) ;
 my $inst = $model->instance(root_class_name => 'MyClass' );
 my $root = $inst->config_root ;
 # put data
 my $step = 'foo=FOO hash_of_nodes:fr foo=bonjour -
   hash_of_nodes:en foo=hello ';
 $root->load( step => $step );
 print $root->describe ;
 ### prints
 # name         value        type         comment
 # foo          FOO          string
 # bar          [undef]      string
 # hash_of_nodes <Foo>        node hash    keys: "en" "fr"

This module is used directly by Config::Model::Node to describe a node element. This module returns a human readable string that shows the content of a configuration node.

For instance (as shown by "fstab" example:

 name         value        type         comment
 fs_spec      [undef]      string       mandatory
 fs_vfstype   [undef]      enum         choice: auto davfs ext2 ext3 swap proc iso9660 vfat ignore, mandatory
 fs_file      [undef]      string       mandatory
 fs_freq      0            boolean
 fs_passno    0            integer

This module is also used by the "ll" command of Config::Model::TermUI.

No parameter. The constructor should be used only by Config::Model::Node.

Return a description string.

Parameters are:

Reference to a Config::Model::Node object. Mandatory
Describe only this element from the node. Optional. All elements are described if omitted.
Describe the element matching the regexp ref. Example: 

 describe => ( pattern => qr/^foo/ )

Dominique Dumont, (ddumont at cpan dot org)

Config::Model,Config::Model::Node,Config::Model::ObjTreeScanner

Dominique Dumont

This software is Copyright (c) 2005-2016 by Dominique Dumont.

This is free software, licensed under:

  The GNU Lesser General Public License, Version 2.1, February 1999