+
+ /**
+ * Return the ID of the magic word at the start of $text, and remove
+ * the prefix from $text.
+ * Return false if no match found and $text is not modified.
+ * Does not match parameters.
+ */
+ public function matchStartAndRemove( &$text ) {
+ $regexes = $this->getRegexStart();
+ foreach ( $regexes as $regex ) {
+ if ( $regex === '' ) {
+ continue;
+ }
+ if ( preg_match( $regex, $text, $m ) ) {
+ list( $id, ) = $this->parseMatch( $m );
+ if ( strlen( $m[0] ) >= strlen( $text ) ) {
+ $text = '';
+ } else {
+ $text = substr( $text, strlen( $m[0] ) );
+ }
+ return $id;
+ }
+ }
+ return false;
+ }