[wp-trac] [WordPress Trac] #26094: sanitize_file_name() breaks some UTF-8 strings

[WordPress Trac]

#26094: sanitize_file_name() breaks some UTF-8 strings
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 Reporter:  p_enrique                   |       Owner:
     Type:  defect (bug)                |      Status:  new
 Priority:  normal                      |   Milestone:  Future Release
Component:  Formatting                  |     Version:  2.1
 Severity:  normal                      |  Resolution:
 Keywords:  has-patch commit 3.9-early  |     Focuses:
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Comment (by lenasterg):

 Hi.
 I just want to remind that the problem in sanitize_file_name for the
 (U+03A0) : Π Greek capital letter pi

 still exists in wordpress version 3.9.2
 It can be solved by replacing the

 {{{
 $filename = preg_replace( '/[\s-]+/' , '-' , $filename ) ;
 }}}

 with

 {{{
 $filename = preg_replace( '/[\s-]+/u' , '-' , $filename ) ;
 }}}

 but I can't be sure what side effects in has for other special cases.

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Ticket URL: <https://core.trac.wordpress.org/ticket/26094#comment:7>
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