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Manual Reference Pages  -  DATA::PHRASEBOOK::GENERIC (3)

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NAME

Data::Phrasebook::Generic - Base class for Phrasebook Models

CONTENTS

SYNOPSIS



    use Data::Phrasebook;

    my $q = Data::Phrasebook->new(
        class  => Fnerk,
        loader => XML,
        file   => phrases.xml,
        dict   => English,
    );



DESCRIPTION

This module provides a base class for phrasebook implementations.

CONSTRUCTOR

    new

new takes an optional hash of arguments. Each value in the hash is given as an argument to a method of the same name as the key.

This constructor should <B>neverB> need to be called directly as Phrasebook creation should go through the Data::Phrasebook factory.

Subclasses should provide at least an accessor method to retrieve values for a named key. Further methods can be overloaded, but must retain a standard API to the overloaded method.

All, or at least most, phrasebook implementations should inherit from <B>thisB> class.

METHODS

    loader

Set, or get, the loader class. Uses a default if none have been specified. See Data::Phrasebook::Loader.

    unload

Called by the file() and dict() methods when a fresh file or dictionary is specified, and reloading is required.

    loaded

Accessor to determine whether the current dictionary has been loaded

    file

A description of a file that is passed to the loader. In most cases, this is a file. A loader that gets its data from a database could conceivably have this as a hash like thus:



   $q->file( {
       dsn => "dbi:SQLite:dbname=bookdb",
       table => phrases,
   } );



That is, which loader you use determines what your file looks like.

The default loader takes just an ordinary filename.

    dict

Accessor to store the dictionary to be used.

    dicts

Having instantiated the Data::Phrasebook object class, and using the file attribute as a directory path, the object can return a list of the current dictionaries available (provided the plugin supports it) as:



  my $pb = Data::Phrasebook->new(
    loader => Text,
    file   => /tmp/phrasebooks,
  );

  my @dicts = $pb->dicts;



or



  my @dicts = $pb->dicts( $path );



    keywords

Having instantiated the Data::Phrasebook object class, using the dict attribute as required, the object can return a list of the current keywords available (provided the plugin supports it) as:



  my $pb = Data::Phrasebook->new(
    loader => Text,
    file   => /tmp/phrasebooks,
    dict   => TEST,
  );

  my @keywords = $pb->keywords;



or



  my @keywords = $pb->keywords( $dict );



Note the list will be a combination of the default and any named dictionary. However, not all Loader plugins may support the second usage.

    data

Loads the data source, if not already loaded, and returns the data block associated with the given key.



    my $data = $self->data($key);



This is typically only used internally by implementations, not the end user.

    delimiters

Returns or sets the current delimiters for substitution variables. Must be a regular expression with at least one capture group.

The example below shows the default ’:variable’ style regex.



   $q->delimiters( qr{ :(\w+) }x );



The example below shows a Template Toolkit style regex.



   $q->delimiters( qr{ \[% \s* (\w+) \s* %\] }x );



In addition to the delimiter pattern, an optional setting to suppress missing value errors can be passed after the pattern. If set to a true value, will turn any unmatched delimiter patterns to an empty string.

SEE ALSO

Data::Phrasebook, Data::Phrasebook::Loader.

SUPPORT

Please see the README file.

AUTHOR



  Original author: Iain Campbell Truskett (16.07.1979 - 29.12.2003)
  Maintainer: Barbie <barbie@cpan.org> since January 2004.
  for Miss Barbell Productions <http://www.missbarbell.co.uk>.



COPYRIGHT AND LICENSE



  Copyright (C) 2003 Iain Truskett.
  Copyright (C) 2004-2013 Barbie for Miss Barbell Productions.

  This distribution is free software; you can redistribute it and/or
  modify it under the Artistic License v2.



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