$minimized
$minimized
Tells us whether or not an HTML attribute is minimized.
Has no meaning in other contexts.
Validates a rel/rev link attribute against a directive of allowed values
parseCDATA(mixed $string) : mixed
Convenience method that parses a string as if it were CDATA.
This method process a string in the manner specified at http://www.w3.org/TR/html4/types.html#h-6.2 by removing leading and trailing whitespace, ignoring line feeds, and replacing carriage returns and tabs with spaces. While most useful for HTML attributes specified as CDATA, it can also be applied to most CSS values.
| mixed | $string |
<?php
/**
* Validates a rel/rev link attribute against a directive of allowed values
* @note We cannot use Enum because link types allow multiple
* values.
* @note Assumes link types are ASCII text
*/
class HTMLPurifier_AttrDef_HTML_LinkTypes extends HTMLPurifier_AttrDef
{
/**
* Name config attribute to pull.
* @type string
*/
protected $name;
/**
* @param string $name
*/
public function __construct($name)
{
$configLookup = array(
'rel' => 'AllowedRel',
'rev' => 'AllowedRev'
);
if (!isset($configLookup[$name])) {
trigger_error(
'Unrecognized attribute name for link ' .
'relationship.',
E_USER_ERROR
);
return;
}
$this->name = $configLookup[$name];
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$allowed = $config->get('Attr.' . $this->name);
if (empty($allowed)) {
return false;
}
$string = $this->parseCDATA($string);
$parts = explode(' ', $string);
// lookup to prevent duplicates
$ret_lookup = array();
foreach ($parts as $part) {
$part = strtolower(trim($part));
if (!isset($allowed[$part])) {
continue;
}
$ret_lookup[$part] = true;
}
if (empty($ret_lookup)) {
return false;
}
$string = implode(' ', array_keys($ret_lookup));
return $string;
}
}
// vim: et sw=4 sts=4