Diggester writes: A group of scientists from MIT and the University of British Columbia have struck one for the good guys.
They have created "mini-factories" that can be programmed to produce different types of proteins and,when implanted into living cells, it should distribute those proteins throughout the body. The scientists have initially triggered these "factories" into action through the use of a laser light to relay the message of which proteins to produce.
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals