Snaller writes "Recently, MPlayer claimed that KISS Technology were violating the GPL by using parts of their MPlayer movie playback code in proprietary software. Now The Danish National Radio has interviewed the managing director of Kiss Technology, Peter Wilmar Christensen. He denies all claims of wrongdoing and suggests that if the pieces of code are the same, perhaps they were leaked from Kiss Technology and were then used by the Mplayer group. He also adds that the GPL is a weak license which has never been tested in court. Gabucino from the Mplayer team is furious, and accuses the director of outright lying."
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals