wikimedia/mediawiki-extensions-CirrusSearch

<?php

namespace CirrusSearch\Parser;

interface NamespacePrefixParser {

    /**
     * @param string $query
     * @return false|array false if no namespace was extracted, an array
     * with the parsed query at index 0 and an array of namespaces at index
     * 1 (or null for all namespaces).
     */
    public function parse( $query );
}