For a little dollop of recursivity in your morning coffee, here's the bit where the CoffeeScript compiler uses these extended regular expressions to lex, among

For a little dollop of recursivity in your morning coffee, here's the bit where the CoffeeScript compiler uses these extended regular expressions to lex, among other things, extended regular expressions... https://github.com/jashkenas/coffee-script/blob/master/src/lexer.coffee#L595-647 https://github.com/jashkenas/coffee-script/blob/master/src/l...