Dear Kaspar, Thanks for replying! I just solved the problem by fixing the expression rule last night (maybe I need more tests). The involved rules are:
1. expression_item; 2. sub_expression; (for constructing recursion) 3. expression. Anyone who is interested can check it on https://gist.github.com/dongli/5791976. I also fixed "bracketed" method to handle optional parenthesis (You just emailed me your neat solution, I will use that one!). Cheers, Li 在 2013-6-17，下午3:16，Kaspar Schiess <[email protected]> 写道： > Hi Li, > > I like your test setup! I would like to help. However... > > I don't exactly see what you're asking here. Can you phrase a question > that I can try to answer? > > kaspar > > On 16.06.13 15:12, Li Dong wrote: >> Dear all, >> >> I am writing a tool for processing Fortran codes, and I need to parse >> the expression in Fortran like: >> >> ((a+1)+(b-1))/((c*2)+d) >> >> I have written a "expression" rule using Parslet, which can parse the >> above example, but it also affects the parsing of other statement rules >> (like "if_condition"). >> >> The parser that I am writing has been put on GitHub >> (https://gist.github.com/dongli/5791976). You can run the tests after >> cloning or downloading that gist by: >> >> rspec --fail-fast rspec_fortran_parser.rb >> >> Any suggestion is appreciated! >> >> Best regards, >> >> Li >> >> ----------------------------------------- >> Dr. Li Dong (董理) >> LASG, Institute of Atmospheric Physics >> Chinese Academy of Sciences >> P.O. Box 9804 >> Beijing 100029, China >> Phone: 8610-8299 5143 >> > >
