use \() for escapes instead of $() #10
Description
Some languages like Swift add a new escape character (\() that marks the beginning of interpolation in interpolated strings.
I believe this makes more sense than $ as it is not inventing new syntax given the already existing language rules. This however means the short form for identifiers ($foo) won't work anymore.
example:
i"\(x) can be written as \(scientific)\(x) or \(fixed(20, 10))\(x)."