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<?php
/**
 * Span Syntax Component of the Wrap Plugin
 *
 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
 * @author     Anika Henke <anika@selfthinker.org>
 */

if(!defined('DOKU_INC')) die();

if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
require_once(DOKU_PLUGIN.'syntax.php');

class syntax_plugin_wrap_span extends DokuWiki_Syntax_Plugin {
    protected $special_pattern = '<span\b[^>\r\n]*?/>';
    protected $entry_pattern   = '<span\b.*?>(?=.*?</span>)';
    protected $exit_pattern    = '</span>';

    function getType(){ return 'formatting';}
    function getAllowedTypes() { return array('formatting', 'substition', 'disabled'); }
    function getPType(){ return 'normal';}
    function getSort(){ return 195; }
    // override default accepts() method to allow nesting - ie, to get the plugin accepts its own entry syntax
    function accepts($mode) {
        if ($mode == substr(get_class($this), 7)) return true;
        return parent::accepts($mode);
    }

    /**
     * Connect pattern to lexer
     */
    function connectTo($mode) {
        $this->Lexer->addSpecialPattern($this->special_pattern,$mode,'plugin_wrap_'.$this->getPluginComponent());
        $this->Lexer->addEntryPattern($this->entry_pattern,$mode,'plugin_wrap_'.$this->getPluginComponent());
    }

    function postConnect() {
        $this->Lexer->addExitPattern($this->exit_pattern, 'plugin_wrap_'.$this->getPluginComponent());
    }

    /**
     * Handle the match
     */
    function handle($match, $state, $pos, Doku_Handler $handler){
        switch ($state) {
            case DOKU_LEXER_ENTER:
            case DOKU_LEXER_SPECIAL:
                $data = strtolower(trim(substr($match,strpos($match,' '),-1)," \t\n/"));
                return array($state, $data);

            case DOKU_LEXER_UNMATCHED :
                $handler->_addCall('cdata', array($match), $pos);
                return false;

            case DOKU_LEXER_EXIT :
                return array($state, '');

        }
        return false;
    }

    /**
     * Create output
     */
    function render($mode, Doku_Renderer $renderer, $indata) {
        static $type_stack = array ();

        if (empty($indata)) return false;
        list($state, $data) = $indata;

        if($mode == 'xhtml'){
            switch ($state) {
                case DOKU_LEXER_ENTER:
                case DOKU_LEXER_SPECIAL:
                    $wrap = $this->loadHelper('wrap');
                    $attr = $wrap->buildAttributes($data);

                    $renderer->doc .= '<span'.$attr.'>';
                    if ($state == DOKU_LEXER_SPECIAL) $renderer->doc .= '</span>';
                    break;

                case DOKU_LEXER_EXIT:
                    $renderer->doc .= '</span>';
                    break;
            }
            return true;
        }
        if($mode == 'odt'){
            switch ($state) {
                case DOKU_LEXER_ENTER:
                    $wrap = plugin_load('helper', 'wrap');
                    array_push ($type_stack, $wrap->renderODTElementOpen($renderer, 'span', $data));
                    break;

                case DOKU_LEXER_EXIT:
                    $element = array_pop ($type_stack);
                    $wrap = plugin_load('helper', 'wrap');
                    $wrap->renderODTElementClose ($renderer, $element);
                    break;
            }
            return true;
        }
        return false;
    }
}