Hi Henrik, In reality, string gaps are unusable in practice, because of GHC and -cpp. We had some in Yhc at one point, and then breakage happened, so we removed them. To quote from the page: * string gaps cause problems with CPP, which doesn't like the backslash at the end of the line. (a minor consideration, since CPP is not part of the language, and in any case there is cpphs). CPP might not be part of the language, but it is used extensively in many projects - as such it does matter that you don't get obscure errors in one part of a file by using CPP in an entirely different part. The cpphs argument is perfectly sensible, if the GHC -cpp invoked cpphs, but it doesn't, and doesn't seem to be likely to. If you have two features battling each other, you probably need to remove one of them. CPP isn't going to be removed, which kind of forces the issue... Thanks Neil