(Darren Moffat supplied the Readline interface.)
The Readline module is a straightforward interface to the GNU Readline library. As such, you will need to look at the GNU documentation (and have a libreadline.a file around somewhere…)
You'll need to link any Readlining program with -lreadline -ltermcap, besides the usual -syslib ghc (and -fhaskell-1.3).
The main function you'll use is:
readline :: String{-the prompt-} -> IO String |
If you want to mess around with Full Readline G(l)ory, we also provide:
rlInitialize, addHistory, rlBindKey, rlAddDefun, RlCallbackFunction(..), rlGetLineBuffer, rlSetLineBuffer, rlGetPoint, rlSetPoint, rlGetEnd, rlSetEnd, rlGetMark, rlSetMark, rlSetDone, rlPendingInput, rlPrompt, rlTerminalName, rlSetReadlineName, rlGetReadlineName |