Hi,

In message "Re: [ruby-core:19971] NULL pointer emerging from empty regexp match!?"
    on Mon, 17 Nov 2008 22:01:14 +0900, Jens Wille <jens.wille / uni-koeln.de> writes:

|recently, there were some weird segfaults with Unicode [1] in our
|Rails app. i have tracked it down to a simple expression like this:
|
|  Unicode.downcase(''[//])        # OK
|  Unicode.downcase(''[//].strip)  # BOOM!

unicode module needs update.  In the past RSTRING_PTR() never be NULL,
but it has been changed to save memory.

							matz.