On Mon, Aug 08, 2005 at 10:25:26AM +0100, Tim Bunce wrote: > Anyone done any work on parsing Java interface definitions? > > And, ideally, translating them into roughly equivalent Perl 6?
I wrote something that did this with Parse::RecDescent. Unfortunately, I don't own the code. For my purposes I needed to parse several hundred interface files and build Perl 5 classes (with hierarchy) on the fly from them. The files in practice only used a subset of the possible Java syntax available in an interface, but more than a trivial subset. The grammar (together with interspersed to buildcode) came out at about 120 lines. It was fast enough for me after the initial Parse::RecDescent startup hit. The Java language spec contains a few grammars that helped me. I found I couldn't use autotree because I can't control the base for the resulting namespace: I have a patch to Parase::RecDescent somewhere that fixes that, or you could use Class::Rebless which I wrote initially because of this problem -- though I ended up doing the blesswork inside the code sections manually as it made much more algorithmic sense. Hope this helps. -- Gaal Yahas <[EMAIL PROTECTED]> http://gaal.livejournal.com/
