152 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			PHP
		
	
	
	
			
		
		
	
	
			152 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			PHP
		
	
	
	
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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 * This file is part of the PEAR Console_CommandLine package.
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 *
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 * PHP version 5
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 *
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 * LICENSE: This source file is subject to the MIT license that is available
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 * through the world-wide-web at the following URI:
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 * http://opensource.org/licenses/mit-license.php
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 *
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 * @category  Console 
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 * @package   Console_CommandLine
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 * @author    David JEAN LOUIS <izimobil@gmail.com>
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 * @copyright 2007 David JEAN LOUIS
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 * @license   http://opensource.org/licenses/mit-license.php MIT License 
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 * @version   CVS: $Id$
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 * @link      http://pear.php.net/package/Console_CommandLine
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 * @since     File available since release 0.1.0
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 * @filesource
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 */
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/**
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 * Class that represent a command line element (an option, or an argument).
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 *
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 * @category  Console
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 * @package   Console_CommandLine
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 * @author    David JEAN LOUIS <izimobil@gmail.com>
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 * @copyright 2007 David JEAN LOUIS
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 * @license   http://opensource.org/licenses/mit-license.php MIT License 
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 * @version   Release: 1.2.0
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 * @link      http://pear.php.net/package/Console_CommandLine
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 * @since     Class available since release 0.1.0
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 */
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abstract class Console_CommandLine_Element
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{
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    // Public properties {{{
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    /**
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     * The element name.
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     *
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     * @var string $name Element name
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     */
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    public $name;
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    /**
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     * The name of variable displayed in the usage message, if no set it 
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     * defaults to the "name" property.
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     *
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     * @var string $help_name Element "help" variable name
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     */
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    public $help_name;
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    /**
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     * The element description.
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     *
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     * @var string $description Element description
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     */
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    public $description;
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    /**
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     * The default value of the element if not provided on the command line.
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     *
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     * @var mixed $default Default value of the option.
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     */
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    public $default;
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    /**
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     * Custom errors messages for this element
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     *
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     * This array is of the form:
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     * <code>
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     * <?php
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     * array(
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     *     $messageName => $messageText,
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     *     $messageName => $messageText,
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     *     ...
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     * );
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     * ?>
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     * </code>
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     *
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     * If specified, these messages override the messages provided by the
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     * default message provider. For example:
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     * <code>
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     * <?php
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     * $messages = array(
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     *     'ARGUMENT_REQUIRED' => 'The argument foo is required.',
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     * );
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     * ?>
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     * </code>
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     *
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     * @var array
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     * @see Console_CommandLine_MessageProvider_Default
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     */
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    public $messages = array();
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    // }}}
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    // __construct() {{{
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    /**
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     * Constructor.
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     *
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     * @param string $name   The name of the element
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     * @param array  $params An optional array of parameters
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     *
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     * @return void
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     */
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    public function __construct($name = null, $params = array()) 
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    {
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        $this->name = $name;
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        foreach ($params as $attr => $value) {
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            if (property_exists($this, $attr)) {
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                $this->$attr = $value;
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            }
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        }
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    }
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    // }}}
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    // toString() {{{
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    /**
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     * Returns the string representation of the element.
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     *
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     * @return string The string representation of the element
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     * @todo use __toString() instead
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     */
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    public function toString()
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    {
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        return $this->help_name;
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    }
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    // }}}
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    // validate() {{{
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    /**
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     * Validates the element instance and set it's default values.
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     *
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     * @return void
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     * @throws Console_CommandLine_Exception
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     */
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    public function validate()
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    {
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        // if no help_name passed, default to name
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        if ($this->help_name == null) {
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            $this->help_name = $this->name;
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        }
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    }
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    // }}}
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}
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