LanguageYue.php

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<?php
class LanguageYue extends Language {

        function hasWordBreaks() {
                return false;
        }

        function segmentByWord( $string ) {
                $reg = "/([\\xc0-\\xff][\\x80-\\xbf]*)/";
                $s = self::insertSpace( $string, $reg );
                return $s;
        }

        function normalizeForSearch( $string ) {
                wfProfileIn( __METHOD__ );

                // Double-width roman characters
                $s = self::convertDoubleWidth( $string );
                $s = trim( $s );
                $s = parent::normalizeForSearch( $s );

                wfProfileOut( __METHOD__ );
                return $s;
        }
}