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htmlpurifier/library/HTMLPurifier/AttrCollection.php

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<?php
require_once 'HTMLPurifier/AttrTypes.php';
require_once 'HTMLPurifier/AttrDef/Lang.php';
/**
* Defines common attribute collections that modules reference
*/
class HTMLPurifier_AttrCollection
{
var $info = array(
'Core' => array(
// 'xml:space' => false,
'class' => 'NMTOKENS',
'id' => 'ID',
'title' => 'CDATA',
),
'I18N' => array(
'xml:lang' => false, // see constructor
'lang' => false, // see constructor
),
'Events' => array(),
'Style' => array(), // specifically empty
'Common' => array(
0 => array('Core', 'Events', 'I18N', 'Style')
)
);
function HTMLPurifier_AttrCollection() {
// setup direct objects
$this->info['I18N']['xml:lang'] =
$this->info['I18N']['lang'] = new HTMLPurifier_AttrDef_Lang();
}
function setup($attr_types, $modules) {
$info =& $this->info;
foreach ($info as $name => $attr) {
// merge attribute collections that include others
$this->performInclusions($info[$name]);
// replace string identifiers with actual attribute objects
$this->expandStringIdentifiers($info[$name], $attr_types);
}
}
function performInclusions(&$attr) {
if (!isset($attr[0])) return;
$merge = $attr[0];
// loop through all the inclusions
for ($i = 0; isset($merge[$i]); $i++) {
// foreach attribute of the inclusion, copy it over
foreach ($this->info[$merge[$i]] as $key => $value) {
if (isset($attr[$key])) continue; // also catches more inclusions
$attr[$key] = $value;
}
if (isset($info[$merge[$i]][0])) {
// recursion
$merge = array_merge($merge, isset($info[$merge[$i]][0]));
}
}
unset($attr[0]);
}
function expandStringIdentifiers(&$attr, $attr_types) {
foreach ($attr as $def_i => $def) {
if ($def_i === 0) continue;
if (!is_string($def)) continue;
if (isset($attr_types->info[$def])) {
$attr[$def_i] = $attr_types->info[$def];
} else {
unset($attr[$def_i]);
}
}
}
}
?>