/ 
Config-Model-2.144
River stage two • 11 direct dependents • 11 total dependents
/ Config::Model::TermUI

NAME

Config::Model::TermUI - Interactive command line interface for cme

VERSION

version 2.144

SYNOPSIS

use Config::Model;
use Config::Model::TermUI ;

# 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 $steps = 'foo=FOO hash_of_nodes:fr foo=bonjour -
  hash_of_nodes:en foo=hello ';
$root->load( steps => $steps );

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 dumps 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 is used. See Term::ReadLine to override default choice.

Dependencies

This module is optional and depends on Term::ReadLine to work. To reduce the dependency list of Config::Model, Term::ReadLine is only recommended. cme gracefully degrades to Config::Model::SimpleUI when necessary.

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.

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) 2005-2021 by Dominique Dumont.

This is free software, licensed under:

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