Hi Sean
On Tue, Jan 22, 2013 at 6:22 PM, Sean Cormican
I'm currently trying to run through this tutorial on the Parsec Library http://legacy.cs.uu.nl/daan/download/parsec/parsec.html#operator and I have a few basic questions that I'm hoping someone might be able to shed some light on.
1. I seem to be having some issues with importing Parsec modules for instance. "import Parsec" as outlined in the introduction causes errors as does a number of the imports used later on in the paper and a solution that I have found is to further specify "import Text.Parsec" is this due to some changes to importing since the paper was written (in 2001 I believe)?
Initial version of Parsec was written using state monad and later it was written using monad transformar library so I guess this could be a reason. May be some one with more experience in parsec can explain it.
2. Can anyone recommend if this is a good source to learn to use the Parsec Library or if there are any other recommended documents I would benefit from ?
Here are couple of links and you can search more files on github. 1. http://www.vex.net/~trebla/haskell/parsec-generally.xhtml 2. http://dl.dropbox.com/u/7810909/docs/haskell-parsers/haskell-parsers/html/in... 3. http://en.wikibooks.org/wiki/Write_Yourself_a_Scheme_in_48_Hours/Parsing 4. https://github.com/jhartikainen/hs-language-php/blob/master/Tokenizer.hs 5. http://www.haskell.org/haskellwiki/Parsing_expressions_and_statements 6. http://www.haskell.org/haskellwiki/Parsing_a_simple_imperative_language 7. https://github.com/tomahawkins/verilog/blob/master/Language/Verilog/Parser.h...
3. I have also tried to run the files that I have created in hugs and ghc and while they work in ghc, hugs on the other hand complains about the import statements I making e.g. "import Text.Parsec.Expr"
Thanks in advance for any help!!
Mukesh
Seán
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