Doku_Handler::footnote PHP Method

    function footnote($match, $state, $pos)
    {
        //        $this->_nestingTag($match, $state, $pos, 'footnote');
        if (!isset($this->_footnote)) {
            $this->_footnote = false;
        }
        switch ($state) {
            case DOKU_LEXER_ENTER:
                // footnotes can not be nested - however due to limitations in lexer it can't be prevented
                // we will still enter a new footnote mode, we just do nothing
                if ($this->_footnote) {
                    $this->_addCall('cdata', array($match), $pos);
                    break;
                }
                $this->_footnote = true;
                $ReWriter = new Doku_Handler_Nest($this->CallWriter, 'footnote_close');
                $this->CallWriter =& $ReWriter;
                $this->_addCall('footnote_open', array(), $pos);
                break;
            case DOKU_LEXER_EXIT:
                // check whether we have already exitted the footnote mode, can happen if the modes were nested
                if (!$this->_footnote) {
                    $this->_addCall('cdata', array($match), $pos);
                    break;
                }
                $this->_footnote = false;
                $this->_addCall('footnote_close', array(), $pos);
                $this->CallWriter->process();
                $ReWriter =& $this->CallWriter;
                $this->CallWriter =& $ReWriter->CallWriter;
                break;
            case DOKU_LEXER_UNMATCHED:
                $this->_addCall('cdata', array($match), $pos);
                break;
        }
        return true;
    }