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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
/**
* This file is part of the PEAR Console_CommandLine package.
*
* PHP version 5
*
* LICENSE: This source file is subject to the MIT license that is available
* through the world-wide-web at the following URI:
* http://opensource.org/licenses/mit-license.php
*
* @category Console
* @package Console_CommandLine
* @author David JEAN LOUIS <izimobil@gmail.com>
* @copyright 2007 David JEAN LOUIS
* @license http://opensource.org/licenses/mit-license.php MIT License
* @version CVS: $Id$
* @link http://pear.php.net/package/Console_CommandLine
* @since File available since release 0.1.0
* @filesource
*/
/**
* Include base element class.
*/
require_once 'Console/CommandLine/Element.php';
/**
* Class that represent a command line argument.
*
* @category Console
* @package Console_CommandLine
* @author David JEAN LOUIS <izimobil@gmail.com>
* @copyright 2007 David JEAN LOUIS
* @license http://opensource.org/licenses/mit-license.php MIT License
* @version Release: @package_version@
* @link http://pear.php.net/package/Console_CommandLine
* @since Class available since release 0.1.0
*/
class Console_CommandLine_Argument extends Console_CommandLine_Element
{
// Public properties {{{
/**
* Setting this to true will tell the parser that the argument expects more
* than one argument and that argument values should be stored in an array.
*
* @var boolean $multiple Whether the argument expects multiple values
*/
public $multiple = false;
/**
* Setting this to true will tell the parser that the argument is optional
* and can be ommited.
* Note that it is not a good practice to make arguments optional, it is
* the role of the options to be optional, by essence.
*
* @var boolean $optional Whether the argument is optional or not.
*/
public $optional = false;
/**
* An array of possible values for the argument.
*
* @var array $choices Valid choices for the argument
*/
public $choices = array();
// }}}
// validate() {{{
/**
* Validates the argument instance.
*
* @return void
* @throws Console_CommandLine_Exception
* @todo use exceptions
*/
public function validate()
{
// check if the argument name is valid
if (!preg_match('/^[a-zA-Z_\x7f-\xff]+[a-zA-Z0-9_\x7f-\xff]*$/',
$this->name)) {
Console_CommandLine::triggerError(
'argument_bad_name',
E_USER_ERROR,
array('{$name}' => $this->name)
);
}
if (!$this->optional && $this->default !== null) {
Console_CommandLine::triggerError(
'argument_no_default',
E_USER_ERROR
);
}
parent::validate();
}
// }}}
}
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