Edit.php

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<?php

class HTMLPurifier_HTMLModule_Edit extends HTMLPurifier_HTMLModule
{

    public $name = 'Edit';

    public function setup($config)
    {
        $contents = 'Chameleon: #PCDATA | Inline ! #PCDATA | Flow';
        $attr = array(
            'cite' => 'URI',
            // 'datetime' => 'Datetime', // not implemented
        );
        $this->addElement('del', 'Inline', $contents, 'Common', $attr);
        $this->addElement('ins', 'Inline', $contents, 'Common', $attr);
    }

    // HTML 4.01 specifies that ins/del must not contain block
    // elements when used in an inline context, chameleon is
    // a complicated workaround to acheive this effect

    // Inline context ! Block context (exclamation mark is
    // separator, see getChildDef for parsing)

    public $defines_child_def = true;

    public function getChildDef($def)
    {
        if ($def->content_model_type != 'chameleon') {
            return false;
        }
        $value = explode('!', $def->content_model);
        return new HTMLPurifier_ChildDef_Chameleon($value[0], $value[1]);
    }
}

// vim: et sw=4 sts=4