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Implement %Attr.AllowedClasses and %Attr.ForbiddenClasses.

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Signed-off-by: Edward Z. Yang <edwardzyang@thewritingpot.com>
This commit is contained in:
Edward Z. Yang
2009-05-25 21:55:44 -04:00
parent bf71c3f392
commit baf053b016
13 changed files with 98 additions and 22 deletions
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22
library/HTMLPurifier/AttrDef/HTML/Class.php Normal file
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@@ -0,0 +1,22 @@
<?php
/**
* Implements special behavior for class attribute (normally NMTOKENS)
*/
class HTMLPurifier_AttrDef_HTML_Class extends HTMLPurifier_AttrDef_HTML_Nmtokens
{
protected function filter($tokens, $config, $context) {
$allowed = $config->get('Attr.AllowedClasses');
$forbidden = $config->get('Attr.ForbiddenClasses');
$ret = array();
foreach ($tokens as $token) {
if (
($allowed === null || isset($allowed[$token])) &&
!isset($forbidden[$token])
) {
$ret[] = $token;
}
}
return $ret;
}
}