Re: [Haskell-beginners] apt cabal hackage

On Fri, Sep 23, 2011 at 10:42 PM, csmagic wrote:

On Thu, Sep 22, 2011 at 4:20 PM, Amy de Buitléir wrote:

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csmagic writes:

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Thanks Joey, AmyNow I want to go 'backwards'.For example I have Language.Haskell.Exts.SyntaxI want to dig into it.  Where/How do I start?

Using either Hayoo or Hoogle, search for "Language.Haskell.Exts.Syntax". Click on the results to find out more about this module (what package it's in, what methods it contains, etc.) Does that answer your question?

Trying out the graphviz package...

$ cabal list|grep -i graphviz gives cabal: <stdout>: invalid argument and nothing else

Your example works great for me. What OS are you using, and what version of cabal? You could also try:

cabal list graphviz

But that doesn't give you all of the power of regular expressions.

But still $ cabal install graphviz still seems to install

What gives?