Haskell Syntax Highlighting with Guards

[FichteFoll]

From @Kasceh on November 16, 2015 12:36

The first piped statement with a guard when not using an = (which isn't necessary) isn't coloured properly, and the the statement following it isn't coloured properly either.

The following is valid Haskell:

handleLookup :: Either String Code -> String
handleLookup x
  | Either.isLeft x       = "Issue: " ++ fromLeft x
  | otherwise             = "Code: "  ++ fromRight x

but is highlighted like so:

whereas having an = after handleLookup x on line 2, styles it like so:

EDIT:

Seems to be a general issue that Sublime doesn't fully understand what can terminate a partial-statement:

Correct syntax, Incorrect highlighting:

Incorrect syntax, correct highlighting

Copied from original issue: SublimeTextIssues/Core#1024