Niklas Broberg
writes: Hmm. I see the difficulty here, ...
On Wed, Aug 14, 2013 at 8:57 PM, Mateusz Kowalczyk wrote: ... The main problem with this approach is that we get comments (and their SrcLoc) as a separate list.
Hi Niklas, Mateusz, It seems that haskell-src-exts has done quite a lot of the hard work (impressive!). Function parseFileWithComments returns the AST annotated with SrcLoc for each major node, and with a separate list of comments annotated with SrcSpan. So it should be possible to reconstitute the source and intersperse the comments between the nodes(?) -- or detect where a comment spans code. (I'm also looking at the discussion about comments on Niklas's announcement of 1.14.0 ) Could there be a style of prettyPrint that carries the list of comments (as a continuation) alongside walking the AST, and consumes/outputs each comment where the comment's Span falls between the nodes' Loc? Would this need too much lookahead? (And thank you to Adam for introducing me to the joys of source-munging. http://www.haskell.org/pipermail/haskell-cafe/2013-August/108426.html .) AntC