Alternate regex syntax

[ingydotnet]

We have /^.*\/foo\/bar.*$/ now which leads to leaning toothpick syndrome.

Clojure uses #"^.*/foo/bar.*$".

We can't use that because it would be a yaml comment a most of the time.

We can use \#"^.*/foo/bar.*$" though.

We could also use \"^.*/foo/bar.*$".

Python has ``r"^./foo/bar.$"so we could use\r"^./foo/bar.$"`.

I like \r"..." because we could later make other kinds of strings with other letters.

[xanni]

Yes, I also like \r"..."