Yes! Use the --info flag for Happy https://www.haskell.org/happy/doc/html/sec-invoking.html Simon | -----Original Message----- | From: ghc-devs [mailto:ghc-devs-bounces@haskell.org] On Behalf Of Jan | Stolarek | Sent: 22 December 2014 12:39 | To: ghc-devs@haskell.org | Subject: How do I investigate parser conflicts? | | I noticed that changes I made to the Parser on my branch increase the | number of reduce/reduce conflicts. Are there any tools/techniques/etc | I can use to investigate this? Or do I just have to use trial and | error (possibly guided with some knowledge of parsing)? Specifically, | is there any way I can check which productions are causing conflicts? | | Janek | | _______________________________________________ | ghc-devs mailing list | ghc-devs@haskell.org | http://www.haskell.org/mailman/listinfo/ghc-devs