[TYPO3-core] RFC #11152: Warning in Import/Export Module

[Rupert Germann]

Martin Kutschker wrote:
> No, it's the hyphen. A hyphen on it's own can only be the very last one
> without escaping. Unescaped it's a character range (eg a.z).

ahh, yes of course, obvious.
 
> So this should be written like this:
> 
> /[^[:alnum:]\/_.-]*/

technically yes, but we don't want dots and slashes in the filename because
they prevent saving of the exportfile.

greets
rupert