#8226: Remove the old style -- # Haddock comments. -------------------------------------+------------------------------------ Reporter: Fuuzetsu | Owner: adinapoli Type: task | Status: patch Priority: normal | Milestone: 7.10.1 Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by adinapoli): Hi guys, I haven't forgot, is that I'm making basically no progress on it. After Fuuzetsu's suggestion of removing the old data structure which held the 0.x style comments, I stumbled upon a series of difficulties, which are, unordered, the result of different edits on the Lexer; * Removing the data structure caused immediately GHC to complain on old style comments which are actually leftovers, an example is inside libraries/ghc-prim/GHC/Classes.hs. I couldn't understand from the sole documentation what to do, but it seems to me that, as Fuuzetsu said, they can be removed because they are equivalent to a pragma (in the example -- #hide == {-# OPTIONS_HADDOCK hide #-}. Unfortunately the lexer chokes in trying to parse "-- #hide" once the data structure has been removed, even though, theoretically, should be possible to modify the Lexer to just treat them as a normal comment ; after all the only thing which prevents this to happen, I believe, is the "isNormalComment" function. Unfortunately I can't modify it as per my first patch (aka removing the "#") because this will cause GHC to interpret RULES as normal comments (I discovered this thanks to an insight from SPJ). Sorry for the noise, I thought it was worth documenting my efforts my myself in the future :) If someone has some insights, please shout :) Alfredo -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8226#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler