Infix operator definitions incorrectly highlighted

[dag]

f $ x = f x

Highlights as a function definition for f rather than $. Getting this right might be difficult, though:

map (x : xs) = ...

should highlight map rather than :.

[danr]

If you decide to implement this, remember that this is also allowed:

(f . g) x = f (g x)

Extensions such as ViewPatterns and NPlusKPatterns could of course make this even trickier.

[dag]

Yeah. For the Big Rewrite I'm thinking of scrubbing this highlighting all together. There's too many edge cases and in fact = is not "function definition" in Haskell so trying to highlight it as such is doomed. For example you can do (a,b) = ... at the top level.