[wp-trac] [WordPress Trac] #24001: \s in the regexp destroys some UTF-8 characters in pingback_ping()

[WordPress Trac]

#24001: \s in the regexp destroys some UTF-8 characters in pingback_ping()
------------------------------+--------------------
 Reporter:  tenpura           |       Owner:
     Type:  defect (bug)      |      Status:  new
 Priority:  normal            |   Milestone:  3.6
Component:  XML-RPC           |     Version:  1.5.2
 Severity:  normal            |  Resolution:
 Keywords:  has-patch commit  |
------------------------------+--------------------

Comment (by azaozz):

 Yeah, we shouldn't be using `\s` in regex that filters user submitted or
 translatable text as it matches bytes that are part of some multibyte
 (UTF-8, others) chars. The `[\r\n\t ]` replacement seems to work properly.
 In theory best would be to use the `u`
 [http://php.net/manual/en/reference.pcre.pattern.modifiers.php modifier],
 however that leaves installs with charset other than UTF-8 out in a "grey
 area".

-- 
Ticket URL: <http://core.trac.wordpress.org/ticket/24001#comment:3>
WordPress Trac <http://core.trac.wordpress.org/>
WordPress blogging software