NAME

       Config::Model::SimpleUI - Simple interface for Config::Model

VERSION

       version 2.047

SYNOPSIS

        use Config::Model;
        use Config::Model::SimpleUI ;
        use Log::Log4perl qw(:easy);
        Log::Log4perl->easy_init($WARN);

        # 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 );

        my $ui = Config::Model::SimpleUI->new( root => $root ,
                                               title => 'My class ui',
                                               prompt => 'class ui',
                                             );

        # engage in user interaction
        $ui -> run_loop ;

        print $root->dump_tree ;

       Once the synopsis above has been saved in "my_test.pl", you can do:

        $ perl my_test.pl
        class ui:$ ls
        foo  bar  hash_of_nodes
        class ui:$ ll hash_of_nodes
        name         value        type         comment
        hash_of_nodes <Foo>        node hash    keys: "en" "fr"

        class ui:$ cd hash_of_nodes:en

        class ui: hash_of_nodes:en $ ll
        name         value        type         comment
        foo          hello        string
        bar          [undef]      string

        class ui: hash_of_nodes:en $ set bar=bonjour

        class ui: hash_of_nodes:en $  ll
        name         value        type         comment
        foo          hello        string
        bar          bonjour      string

        class ui: hash_of_nodes:en $ ^D

       At the end, the test script will dump the configuration tree. The modified "bar" value can
       be found in there:

        foo=FOO
        hash_of_nodes:en
          foo=hello
          bar=bonjour -
        hash_of_nodes:fr
          foo=bonjour - -

DESCRIPTION

       This module provides a pure ASCII user interface using STDIN and STDOUT.

USER COMMAND SYNTAX

       cd ...
           Jump into node or value element. You can use "cd <element>", "cd <elt:key>" or "cd -"
           to go up one node or "cd !"  to go to configuration root.

       set elt=value
           Set a leaf value.

       set elt:key=value
           Set a leaf value locate in a hash or list element.

       reset elt
           Delete leaf value (set to "undef").

       delete elt
           Delete leaf value.

       delete elt:key
           Delete a list or hash element

       display node_name elt:key
           Display a value

       ls  Show elements of current node

       help
           Show available commands.

       desc[ription]
           Show class description of current node.

       desc(elt)
           Show description of element from current node.

       desc(value)
           Show effect of value (for enum)

       changes
           Show unsaved changes

       exit
           Exit shell

CONSTRUCTOR

   parameters
       root
           Root node of the configuration tree

       title
           UI title

       prompt
           UI prompt. The prompt will be completed with the location of the current node.

Methods

   run_loop()
       Engage in user interaction until user enters '^D' (CTRL-D).

BUGS

       •   UI should take into account experience.

AUTHOR

       Dominique Dumont, (ddumont at cpan dot org)

SEE ALSO

       Config::Model, Config::Model::Instance, Config::Model::Node,

AUTHOR

       Dominique Dumont

COPYRIGHT AND LICENSE

       This software is Copyright (c) 2013 by Dominique Dumont.

       This is free software, licensed under:

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