Translation_Entry WordPress Class

	class Translation_Entry {

		/**
		 * Whether the entry contains a string and its plural form, default is false.
		 *
		 * @var bool
		 */
		public $is_plural = false;

		public $context             = null;
		public $singular            = null;
		public $plural              = null;
		public $translations        = array();
		public $translator_comments = '';
		public $extracted_comments  = '';
		public $references          = array();
		public $flags               = array();

		/**
		 * @param array $args {
		 *     Arguments array, supports the following keys:
		 *
		 *     @type string $singular            The string to translate, if omitted an
		 *                                       empty entry will be created.
		 *     @type string $plural              The plural form of the string, setting
		 *                                       this will set `$is_plural` to true.
		 *     @type array  $translations        Translations of the string and possibly
		 *                                       its plural forms.
		 *     @type string $context             A string differentiating two equal strings
		 *                                       used in different contexts.
		 *     @type string $translator_comments Comments left by translators.
		 *     @type string $extracted_comments  Comments left by developers.
		 *     @type array  $references          Places in the code this string is used, in
		 *                                       relative_to_root_path/file.php:linenum form.
		 *     @type array  $flags               Flags like php-format.
		 * }
		 */
		public 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.
		 *
		 * @deprecated 5.4.0 Use __construct() instead.
		 *
		 * @see Translation_Entry::__construct()
		 */
		public function Translation_Entry( $args = array() ) {
			_deprecated_constructor( self::class, '5.4.0', static::class );
			self::__construct( $args );
		}

		/**
		 * Generates a unique key for this entry.
		 *
		 * @return string|false The key or false if the entry is empty.
		 */
		public 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 $other
		 */
		public function merge_with( &$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;
			}

		}
	}