On Sun, Aug 05, 2007 at 03:19:25PM -0700, David Pollak wrote: > Howdy, > As I'm starting to learn the Haskell libraries, I'm having a less than > fun time trying to figure out what functions operate on what types. > For example, in the documentation for HaXml, there's a description of > Document: > [1]http://www.cs.york.ac.uk/fp/HaXml/HaXml/Text-XML-HaXml-Types.html#4 > However, I can't find any links to what functions accept document as a > parameter. Am I missing some magic? There might be better answers. Some ways to achieve what you want: a) use hoogle (haskell.org/hoogle). You can use hoogle to find functions by types. But I don't know haw to create a query such as ... -> Document -> ... b) Use a file search by content tool (grep ...) to either grep the haddock documentation or the source files. c) Use ghci and the :browse command .. (again grep will help) (eg $ghci -package HaXml :browse Text.XML.HaXml.Combinators ) but you need to invoke this command for each module.. You can get a list of exposed modules by querying ghc-pkg..
This kind of references might make sense on special types such as Document, but not on types such as Int (there would be too many matches) > A couple of other questions... > Can ByteStrings be substituted anywhere that takes a String (e.g., > HaXml xmlParse)? In general yes, you should be able to use ByteStrings wherever a String is used.. But remember that a String has some syntactic suggar becuase it's treated as list. Thus the : operator won't work with ByteStrings (I'm sure the module does define functions providing the same functionality) > Is there a way to deal with UTF-8 encoded byte arrays converting them > to Strings other than [2]http://www.gatago.org/fa/haskell/52409638.html Don't know. Marc Weber PS: you wrote: "accept document as a parameter" Be careful with upper /lower case. You want the type *D*ocument here, not the argument named document. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
