--- On Fri, 10/15/10, Kevin A. McGrail <[email protected]> wrote: > ... > Something like $subject =~ s/[^-a-z0-9 _]//i; would be a good start.
A start it is. One should allow for punctuation at the end, as such is proper writing style. Also, certain punctuation marks (e.g. comma, slash, or colon - the latter especially in "Re:") also occur in the middle of subjects. What one should disallow is exactly two periods in a row. One, three, or more than three won't have the effect of climbing a filesystem's directory tree. Watch out for tricky mime-encoded subjects too. _______________________________________________ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list [email protected] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
