mirror of
https://github.com/ezyang/htmlpurifier.git
synced 2024-09-20 19:25:19 +00:00
522c8ed7c2
- Add FSTools:globr() - require_once removed from all files - HTMLPurifier.autoload.php added to register autoload handler - Removed redundant chdir in maintenance script - Modified standalone to use HTMLPurifier.includes.php for including stuff - Added maintenance script remove-require-once.php which we used once and should never use again git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1516 48356398-32a2-884e-a903-53898d9a118a
48 lines
1.6 KiB
PHP
48 lines
1.6 KiB
PHP
<?php
|
|
|
|
/**
|
|
* Validates contents based on NMTOKENS attribute type.
|
|
* @note The only current use for this is the class attribute in HTML
|
|
* @note Could have some functionality factored out into Nmtoken class
|
|
* @warning We cannot assume this class will be used only for 'class'
|
|
* attributes. Not sure how to hook in magic behavior, then.
|
|
*/
|
|
class HTMLPurifier_AttrDef_HTML_Nmtokens extends HTMLPurifier_AttrDef
|
|
{
|
|
|
|
public function validate($string, $config, $context) {
|
|
|
|
$string = trim($string);
|
|
|
|
// early abort: '' and '0' (strings that convert to false) are invalid
|
|
if (!$string) return false;
|
|
|
|
// OPTIMIZABLE!
|
|
// do the preg_match, capture all subpatterns for reformulation
|
|
|
|
// we don't support U+00A1 and up codepoints or
|
|
// escaping because I don't know how to do that with regexps
|
|
// and plus it would complicate optimization efforts (you never
|
|
// see that anyway).
|
|
$matches = array();
|
|
$pattern = '/(?:(?<=\s)|\A)'. // look behind for space or string start
|
|
'((?:--|-?[A-Za-z_])[A-Za-z_\-0-9]*)'.
|
|
'(?:(?=\s)|\z)/'; // look ahead for space or string end
|
|
preg_match_all($pattern, $string, $matches);
|
|
|
|
if (empty($matches[1])) return false;
|
|
|
|
// reconstruct string
|
|
$new_string = '';
|
|
foreach ($matches[1] as $token) {
|
|
$new_string .= $token . ' ';
|
|
}
|
|
$new_string = rtrim($new_string);
|
|
|
|
return $new_string;
|
|
|
|
}
|
|
|
|
}
|
|
|