File content/formatting/parser/ContentFormattingUnparser.class.php

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<?php
/**
* This class is an abstract class. It contains the common elements needed by all the unparsers of PHPBoost.
 * @package     Content
 * @subpackage  Formatting\parser
 * @copyright   &copy; 2005-2019 PHPBoost
 * @license     https://www.gnu.org/licenses/gpl-3.0.html GNU/GPL-3.0
 * @author      Benoit SAUTEL <ben.popeye@phpboost.com>
 * @version     PHPBoost 5.2 - last update: 2018 06 18
 * @since       PHPBoost 2.0 - 2008 08 10
 * @contributor mipel <mipel@phpboost.com>
 * @contributor Julien BRISWALTER <j1.seth@phpboost.com>
 * @contributor Arnaud GENET <elenwii@phpboost.com>
*/

abstract class ContentFormattingUnparser extends AbstractParser
{
    /**
     * Builds a ContentFormattingUnparser class.
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
    * Unparses the html code. In a first time, it pick the html tags up, and then, when you have done all the processings you wanted, you reimplant it.
    * @param bool $action self::PICK_UP if you want to pick up the html tag and self::REIMPLANT to reimplant it.
    */
    protected function unparse_html($action)
    {
        //Prélèvement du HTML
        if ($action == self::PICK_UP)
        {
            $mask = '`<!-- START HTML -->' . "\n" . '(.+)' . "\n" . '<!-- END HTML -->`suU';
            $content_split = preg_split($mask, str_replace('&nbsp;', '&amp;nbsp;', $this->content), -1, PREG_SPLIT_DELIM_CAPTURE);

            $content_length = count($content_split);
            $id_tag = 0;

            if ($content_length > 1)
            {
                $this->content = '';
                for ($i = 0; $i < $content_length; $i++)
                {
                    //contenu
                    if ($i % 2 == 0)
                    {
                        $this->content .= $content_split[$i];
                        //Ajout du tag de remplacement
                        if ($i < $content_length - 1)
                        {
                            $this->content .= '[HTML_UNPARSE_TAG_' . $id_tag++ . ']';
                        }
                    }
                    else
                    {
                        $this->array_tags['html_unparse'][] = $content_split[$i];
                    }
                }

                //On protège le code HTML à l'affichage qui vient non protégé de la base de données
                $this->array_tags['html_unparse'] = array_map(function($var) {return TextHelper::htmlspecialchars($var, ENT_NOQUOTES);}, $this->array_tags['html_unparse']);
            }
            return true;
        }
        //Réinsertion du HTML
        else
        {
            if (!array_key_exists('html_unparse', $this->array_tags))
            {
                return false;
            }

            $content_length = count($this->array_tags['html_unparse']);

            if ($content_length > 0)
            {
                for ($i = 0; $i < $content_length; $i++)
                {
                    $this->content = str_replace('[HTML_UNPARSE_TAG_' . $i . ']', '[html]' . $this->array_tags['html_unparse'][$i] . '[/html]', $this->content);
                }
                $this->array_tags['html_unparse'] = array();
            }
            return true;
        }
    }

    /**
     * Unparses the code tag. In a first time, you pick it up and you reimplant it.
     * @param bool $action self::PICK_UP to pick the code tag up, self::REIMPLANT to reinsert them.
     */
    protected function unparse_code($action)
    {
        //Prélèvement du HTML
        if ($action == self::PICK_UP)
        {
            $mask = '`\[\[CODE(=[^,\s]+(?:,(?:0|1)(?:,1)?)?)?\]\]' . '(.+)' . '\[\[/CODE\]\]`suU';
            $content_split = preg_split($mask, str_replace('&nbsp;', '&amp;nbsp;', $this->content), -1, PREG_SPLIT_DELIM_CAPTURE);

            $content_length = count($content_split);
            $id_tag = 0;

            if ($content_length > 1)
            {
                $this->content = '';
                for ($i = 0; $i < $content_length; $i++)
                {
                    //contenu
                    if ($i % 3 == 0)
                    {
                        $this->content .= $content_split[$i];
                        //Ajout du tag de remplacement
                        if ($i < $content_length - 1)
                        {
                            $this->content .= '[CODE_UNPARSE_TAG_' . $id_tag++ . ']';
                        }
                    }
                    elseif ($i % 3 == 2)
                    {
                        $this->array_tags['code_unparse'][] = '[code' . $content_split[$i - 1] . ']' . $content_split[$i] . '[/code]';
                    }
                }
            }
            return true;
        }
        //Réinsertion du HTML
        else
        {
            if (!array_key_exists('code_unparse', $this->array_tags))
            {
                return false;
            }

            $content_length = count($this->array_tags['code_unparse']);

            if ($content_length > 0)
            {
                for ($i = 0; $i < $content_length; $i++)
                $this->content = str_replace('[CODE_UNPARSE_TAG_' . $i . ']', $this->array_tags['code_unparse'][$i], $this->content);
                $this->array_tags['code_unparse'] = array();
            }
            return true;
        }
    }
}
?>