{"by":"10ren","id":679625,"kids":[679808],"parent":679300,"text":"The \"A Regular Expression Matcher\" in <i>Beautiful Code</i> is a command-line wildcard matcher (from memory), and lacks parentheses and alternation. Useful, and probably an ideal example for the book, but much less powerful even than a mathematical regular expression.<p>See for yourself: <a href=\"http://books.google.com/books?id=gJrmszNHQV4C&lpg=PA1&ots=rKS-utWaqe&dq=patent%20kernighan&pg=PA1\" rel=\"nofollow\">http://books.google.com/books?id=gJrmszNHQV4C&lpg=PA1...</a>","time":1246307911,"type":"comment"}