NAME

Config::Model::TermUI - Provides Config::Model UI à la Term::ReadLine

VERSION

version 1.252

SYNOPSIS

 use Config::Model;
 use Config::Model::TermUI ;
 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::TermUI->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 achieve the same interactions as with Config::Model::SimpleUI. Except that you can use TAB completion:

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 helper to construct pure ASCII user interface on top of Term::ReadLine. To get better interaction you must install either Term::ReadLine::Gnu or Term::ReadLine::Perl.

Depending on your installation, either Term::ReadLine::Gnu or Term::ReadLine::Perl. See Term::ReadLine to override default choice.

USER COMMAND SYNTAX

See "USER COMMAND SYNTAX" in Config::Model::SimpleUI.

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

• Auto-completion is not complete.

• Auto-completion provides wrong choice when you try to cd in a hash where the index contains a white space. I.e. the correct command is cd foo:"a b" instead of cd foo: "a b" as proposed by auto completion.

• UI should take into account experience.

AUTHOR

Dominique Dumont, (ddumont at cpan dot org)

SEE ALSO

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