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<?php
/**
* Abstract class of a tag token (start, end or empty), and its behavior.
*/
class HTMLPurifier_Token_Tag extends HTMLPurifier_Token
{
/**
* Static bool marker that indicates the class is a tag.
*
* This allows us to check objects with <tt>!empty($obj->is_tag)</tt>
* without having to use a function call <tt>is_a()</tt>.
*/
public $is_tag = true;
/**
* The lower-case name of the tag, like 'a', 'b' or 'blockquote'.
*
* @note Strictly speaking, XML tags are case sensitive, so we shouldn't
* be lower-casing them, but these tokens cater to HTML tags, which are
* insensitive.
*/
public $name;
/**
* Associative array of the tag's attributes.
*/
public $attr = array();
/**
* Non-overloaded constructor, which lower-cases passed tag name.
*
* @param $name String name.
* @param $attr Associative array of attributes.
*/
public function __construct($name, $attr = array(), $line = null, $col = null) {
$this->name = ctype_lower($name) ? $name : strtolower($name);
foreach ($attr as $key => $value) {
// normalization only necessary when key is not lowercase
if (!ctype_lower($key)) {
$new_key = strtolower($key);
if (!isset($attr[$new_key])) {
$attr[$new_key] = $attr[$key];
}
if ($new_key !== $key) {
unset($attr[$key]);
}
}
}
$this->attr = $attr;
$this->line = $line;
$this->col = $col;
}
}
// vim: et sw=4 sts=4
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