--- Comment #9 from Zoltan Herczeg <hzmester@???> 2014-09-24 10:03:29 ---
Both patterns are working on Linux.
> Can option of PCRE_UTF8 make any difference?
Yes. PCRE uses the official unicode properties to determine the types of
characters when we decode a unicode stream. As far as I remember, some native
systems (e.g. IBM z/OS) might use different types, and the space might be not
encoded as 0x20.