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<?php
/**
* File containing the ezcConsoleQuestionDialogRegexValidator class.
*
* @package ConsoleTools
* @version 1.6.1
* @copyright Copyright (C) 2005-2010 eZ Systems AS. All rights reserved.
* @license http://ez.no/licenses/new_bsd New BSD License
* @filesource
*/
/**
* Regex validator for ezcConsoleQuestionDialog
* Validator class for ezcConsoleQuestionDialog objects that validates by
* matching a certain regular expression.
*
* @package ConsoleTools
* @version 1.6.1
*
* @property string $pattern
* The pattern to use for validation. Delimiters and modifiers
* included.
* @property mixed $default
* A default value if no (an empty string) result given.
*/
class ezcConsoleQuestionDialogRegexValidator implements ezcConsoleQuestionDialogValidator
{
/**
* Properties
*
* @var array(string=>mixed)
*/
protected $properties = array(
"pattern" => null,
"default" => null,
);
/**
* Create a new question dialog regex validator.
* Create a new question dialog regex validator, which validates the result
* specified against a given regular expression. The delimiters and
* eventual modifiers must be included in the pattern. If not value is
* provided by the user a possibly set $default value is used instead.
*
*
* @param string $pattern Pattern to validate against.
* @param mixed $default Default value.
* @return void
*/
public function __construct( $pattern, $default = null )
{
$this->pattern = $pattern;
$this->default = $default;
}
/**
* Returns if the given result is valid.
* Returns if the result matches the regular expression.
*
* @param mixed $result The received result.
* @return bool If the result is valid.
*/
public function validate( $result )
{
if ( $result === "" )
{
return $this->default !== null;
}
return preg_match( $this->pattern, $result ) > 0;
}
/**
* Returns a fixed version of the result, if possible.
* If no result was provided by the user, the default value will be
* returned, if set.
*
* @param mixed $result The received result.
* @return mixed The manipulated result.
*/
public function fixup( $result )
{
if ( $result === "" && $this->default !== null )
{
return $this->default;
}
return $result;
}
/**
* Returns a string representing valid results.
* Returns the string that will be displayed with the question to
* indicate valid results to the user and a possibly set default, if
* available.
*
* @return string
*/
public function getResultString()
{
return "(match {$this->pattern})" . ( $this->default !== null ? " [{$this->default}]" : "" );
}
/**
* Property read access.
*
* @param string $propertyName Name of the property.
* @return mixed Value of the property or null.
*
* @throws ezcBasePropertyNotFoundException
* If the the desired property is not found.
* @ignore
*/
public function __get( $propertyName )
{
if ( $this->__isset( $propertyName ) )
{
return $this->properties[$propertyName];
}
throw new ezcBasePropertyNotFoundException( $propertyName );
}
/**
* Property write access.
*
* @param string $propertyName Name of the property.
* @param mixed $propertyValue The value for the property.
*
* @throws ezcBasePropertyNotFoundException
* If a the value for the property options is not an instance of
* @throws ezcBaseValueException
* If a the value for a property is out of range.
* @ignore
*/
public function __set( $propertyName, $propertyValue )
{
switch ( $propertyName )
{
case "pattern":
if ( is_string( $propertyValue ) === false || strlen( $propertyValue ) < 2 )
{
throw new ezcBaseValueException( $propertyName, $propertyValue, "string, length > 1" );
}
break;
case "default":
if ( is_scalar( $propertyValue ) === false && $propertyValue !== null )
{
throw new ezcBaseValueException( $propertyName, $propertyValue, "scalar" );
}
break;
default:
throw new ezcBasePropertyNotFoundException( $propertyName );
}
$this->properties[$propertyName] = $propertyValue;
}
/**
* Property isset access.
*
* @param string $propertyName Name of the property.
* @return bool True is the property is set, otherwise false.
* @ignore
*/
public function __isset( $propertyName )
{
return array_key_exists( $propertyName, $this->properties );
}
}
?>