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�i�t��B�������������?�� * @author Dan Scott * @copyright 2003-2008 Oy Realnode Ab, Dan Scott * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1 * @version CVS: $Id$ * @link http://pear.php.net/package/File_MARC */ // {{{ class File_MARC_Control_Field extends File_MARC_Field /** * The File_MARC_Control_Field class represents a single control field * in a MARC record. * * A MARC control field consists of a tag name and control data. * * @category File_Formats * @package File_MARC * @author Christoffer Landtman * @author Dan Scott * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1 * @link http://pear.php.net/package/File_MARC */ class File_MARC_Control_Field extends File_MARC_Field { // {{{ Properties /** * Value of field, if field is a Control field * @var string */ protected $data; // }}} // {{{ Constructor: function __construct() /** * Field init function * * Create a new {@link File_MARC_Control_Field} object from passed arguments * * @param string $tag tag * @param string $data control field data * @param string $ind1 placeholder for class strictness * @param string $ind2 placeholder for class strictness */ function __construct($tag, $data, $ind1 = null, $ind2 = null) { $this->data = $data; parent::__construct($tag); } // }}} // {{{ Destructor: function __destruct() /** * Destroys the control field */ function __destruct() { $this->data = null; parent::__destruct(); } // }}} // {{{ Explicit destructor: function delete() /** * Destroys the control field * * @return true */ function delete() { $this->__destruct(); } // }}} // {{{ getData() /** * Get control field data * * @return string returns data in control field */ function getData() { return (string)$this->data; } // }}} // {{{ isEmpty() /** * Is empty * * Checks if the field contains data * * @return bool Returns true if the field is empty, otherwise false */ function isEmpty() { return ($this->data) ? false : true; } // }}} // {{{ setData() /** * Set control field data * * @param string $data data for the control field * * @return bool returns the new data in the control field */ function setData($data) { $this->data = $data; return $this->getData(); } // }}} // {{{ __toString() /** * Return as a formatted string * * Return the control field as a formatted string for pretty printing * * @return string Formatted output of control Field */ function __toString() { return sprintf("%3s %s", $this->tag, $this->data); } // }}} // {{{ toRaw() /** * Return as raw MARC * * Return the control field formatted in Raw MARC for saving into MARC files * * @return string Raw MARC */ function toRaw() { return (string)$this->data.File_MARC::END_OF_FIELD; } // }}} } // }}}