if ( ! class_exists( 'Translation_Entry', false ) ) :

	 * Translation_Entry class encapsulates a translatable string

	class Translation_Entry {

		/**

		 * Whether the entry contains a string and its plural form, default is false

		 *

		 * @var boolean

		 */

		var $is_plural = false;

		var $context             = null;

		var $singular            = null;

		var $plural              = null;

		var $translations        = array();

		var $translator_comments = '';

		var $extracted_comments  = '';

		var $references          = array();

		var $flags               = array();

		/**

		 * @param array $args associative array, support following keys:

		 *  - singular (string) -- the string to translate, if omitted and empty entry will be created

		 *  - plural (string) -- the plural form of the string, setting this will set {@link $is_plural} to true

		 *  - translations (array) -- translations of the string and possibly -- its plural forms

		 *  - context (string) -- a string differentiating two equal strings used in different contexts

		 *  - translator_comments (string) -- comments left by translators

		 *  - extracted_comments (string) -- comments left by developers

		 *  - references (array) -- places in the code this strings is used, in relative_to_root_path/file.php:linenum form

		 *  - flags (array) -- flags like php-format

		 */

		function __construct( $args = array() ) {

			// if no singular -- empty object

			if ( ! isset( $args['singular'] ) ) {

				return;

			}

			// get member variable values from args hash

			foreach ( $args as $varname => $value ) {

				$this->$varname = $value;

			}

			if ( isset( $args['plural'] ) && $args['plural'] ) {

				$this->is_plural = true;

			}

			if ( ! is_array( $this->translations ) ) {

				$this->translations = array();

			}

			if ( ! is_array( $this->references ) ) {

				$this->references = array();

			}

			if ( ! is_array( $this->flags ) ) {

				$this->flags = array();

			}

		/**

		 * PHP4 constructor.

		 */

		public function Translation_Entry( $args = array() ) {

			self::__construct( $args );

		}

		/**

		 * Generates a unique key for this entry

		 *

		 * @return string|bool the key or false if the entry is empty

		 */

		function key() {

			if ( null === $this->singular || '' === $this->singular ) {

				return false;

			}

			// Prepend context and EOT, like in MO files

			$key = ! $this->context ? $this->singular : $this->context . "\4" . $this->singular;

			// Standardize on \n line endings

			$key = str_replace( array( "\r\n", "\r" ), "\n", $key );

			return $key;

		}

		/**

		 * @param object $other

		 */

		function merge_with( &$other ) {

			$this->flags      = array_unique( array_merge( $this->flags, $other->flags ) );

			$this->references = array_unique( array_merge( $this->references, $other->references ) );

			if ( $this->extracted_comments != $other->extracted_comments ) {

				$this->extracted_comments .= $other->extracted_comments;

			}

		}

endif;