Html2texy.php

<?php #:mode=php:folding=explicit:collapseFolds=1:

/**
 *
 * Html2texy
 *
 * Copyright (C) 2007 Jakub Roztocil <jakub@roztocil.name>
 *
 * {{{ Licence
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * }}}
 *
 * Usage:
 *
 * $h2t = new Html2texy();
 * $h2t->setParam($key, $value);
 * echo $h2t->convert($html);
 *
 */

class Html2texy {

    private $config = array (
        'ignore-empty-divs' => true,
        'ignore-all-divs' => false
    );

    private $proc;

    public function __construct() {
        $this->proc = new XSLTProcessor();
        $this->proc->registerPHPFunctions();
        $style = new DOMDocument('1.0', 'utf-8');
        $style->load(dirname(__FILE__) . '/html2texy.xsl');
        $this->proc->importStylesheet($style);
        foreach ($this->config as $k => $v) {
            $this->proc->setParameter('', $k, $v);
        }
    }

    public function convert($html) {
        // TODO: charsets
        $html = $this->prepareHtml($html);
        $htmlDoc = new DOMDocument();
        @$htmlDoc->loadHTML($html);
        return $this->proc->transformToXml($htmlDoc);
    }

    public function setParam($k, $v) {
        $this->proc->setParameter('', $k, $v);
    }

    private function prepareHtml($html) {
        // remove doctype, namespaces
        $html = preg_replace('/xmlns=[\'"].+[\'"]|<!DOCTYPE[^>]>|<html[^>]+>/', '', $html);
        $html = '<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head>' . $html;
        return $html;
    }


}