On Sat, Aug 19, 2006 at 01:22:57AM +0100, Neil Mitchell wrote:
it can be fed the HsSyn output from Language.Haskell.Parser directly in the standard libs, but you probably want to prune out everything but the import list parsing to not be messed up by extensions the full parser can't handle.
I believe that for Yhc, as long as the extensions are after the last import, they won't be read. The parser is sufficiently lazy that it can get the import declarations out of a module without parsing the whole thing.
Really? fully lazy parsers are notoriously tricky, which parsing library do you use? I keep wanting to switch jhc to packrat parsing http://pdos.csail.mit.edu/~baford/packrat/ actually, any monadic formulation would be better than 'happy'for me because with pre-generated parsers you can't change your parse rules on the fly easily, like depending on what extensions are enabled. John -- John Meacham - ⑆repetae.net⑆john⑈