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..
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
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) 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.