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Make underscores valid in sanitize_html_class. fixes #17067. 

git-svn-id: http://svn.automattic.com/wordpress/trunk@17614 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
nacin 2011-04-06 21:28:52 +00:00
parent e3895262ef
commit 14ec951269
1 changed files with 4 additions and 4 deletions
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8
wp-includes/formatting.php
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@ -876,7 +876,7 @@ function sanitize_sql_orderby( $orderby ){
/**
* Santizes a html classname to ensure it only contains valid characters
*
* Strips the string down to A-Z,a-z,0-9,'-' if this results in an empty
* Strips the string down to A-Z,a-z,0-9,_,-. If this results in an empty
* string then it will return the alternative value supplied.
*
* @todo Expand to support the full range of CDATA that a class attribute can contain.
@ -890,10 +890,10 @@ function sanitize_sql_orderby( $orderby ){
*/
function sanitize_html_class( $class, $fallback = '' ) {
//Strip out any % encoded octets
$sanitized = preg_replace('|%[a-fA-F0-9][a-fA-F0-9]|', '', $class);
$sanitized = preg_replace( '|%[a-fA-F0-9][a-fA-F0-9]|', '', $class );
//Limit to A-Z,a-z,0-9,'-'
$sanitized = preg_replace('/[^A-Za-z0-9-]/', '', $sanitized);
//Limit to A-Z,a-z,0-9,_,-
$sanitized = preg_replace( '/[^A-Za-z0-9_-]/', '', $sanitized );
if ( '' == $sanitized )
$sanitized = $fallback;