We have a lot of C/C++ in the guts of our software, it's a lot more than just the million lines of Perl!
Any reason for the use of Perl both in this and in DDG? I'm a recent Comp Sci graduate and haven't seen a lot jobs for Perl or use cases over say Python/Ruby which seem to more popular.
I guess the people who made them were already comfortable with Perl. Perl is also very good at text processing.