Gettext_Translations::parenthesize_plural_exression() │ public │ WP 2.8.0

Deprecated from version 6.5.0. It is no longer supported and can be removed in future releases. Use Plural_Forms class instead.

Adds parentheses to the inner parts of ternary operators in plural expressions, because PHP evaluates ternary operators from left to right

Method of the class: Gettext_Translations{}

No Hooks.

Return

String. the expression with parentheses added

Usage

$Gettext_Translations = new Gettext_Translations();
$Gettext_Translations->parenthesize_plural_exression( $expression );
$expression(string) (required)
the expression without parentheses

Notes

Changelog

Since 2.8.0 Introduced.
Deprecated since 6.5.0 Use the Plural_Forms class instead.

Gettext_Translations::parenthesize_plural_exression() code WP 6.5.2

wp-includes/pomo/translations.php 
public function parenthesize_plural_exression( $expression ) {
	$expression .= ';';
	$res         = '';
	$depth       = 0;
	for ( $i = 0; $i < strlen( $expression ); ++$i ) {
		$char = $expression[ $i ];
		switch ( $char ) {
			case '?':
				$res .= ' ? (';
				++$depth;
				break;
			case ':':
				$res .= ') : (';
				break;
			case ';':
				$res  .= str_repeat( ')', $depth ) . ';';
				$depth = 0;
				break;
			default:
				$res .= $char;
		}
	}
	return rtrim( $res, ';' );
}