Pattern Insight does this, IIRC. They found at least one bug in Linux as a result of copypasta. http://www.patterninsight.com/products/pattern-miner.html http:

Pattern Insight does this, IIRC. They found at least one bug in Linux as a result of copypasta. http://www.patterninsight.com/products/pattern-miner.html http://www.patterninsight.com/products/pattern-miner.html I saw a demo, and it was pretty slick. I have never used it on an actual project though.