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(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
(All those names are just Haskellised versions of what you
will see in the GNU readline documentation.)
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