The "A Regular Expression Matcher" in Beautiful Code is a command-line wildcard matcher (from memory), and lacks parentheses and alternation. Useful, and probab

The "A Regular Expression Matcher" in Beautiful Code 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. See for yourself: http://books.google.com/books?id=gJrmszNHQV4C&lpg=PA1&ots=rKS-utWaqe&dq=patent%20kernighan&pg=PA1 http://books.google.com/books?id=gJrmszNHQV4C&lpg=PA1&#3...