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Questions tagged [haskeline]

25 questions
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0 answers

Using ansi-wl-pprint with haskeline

How does one use ansi-wl-pprint with haskeline, without losing Windows support? ansi-wl-pprint has two ways to output a SimpleDoc: (\doc -> displayS doc "") :: SimpleDoc -> String displayIO stdout :: SimpleDoc -> IO () However, the documentation…
Nathan Ringo
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Haskeline throws linking error in stack build

I'm trying to build haskell project via stack build command, but it throws excepton: -- While building package %some secret project name%-0.1.0.0 (scroll up to its section to see the error) using: /home/%some secret…
someone1231
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Haskeline word completion with list

Haskell newbie here and also first time asking a question here, apologies in advance for anything I may have missed anything. Im writing a repl function that takes user input, adds the input to a list and uses haskeline to tab complete user input…
shadow123
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Haskeline history in the wrong order

I'm using Haskeline to make a CLI interface for a program. I use the basic configuration of Haskeline to save the commands stroked in a file. mySettings = defaultSettings { autoAddHistory = True …
JeanJouX
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unwrap getInputLine result from Input

I'm getting a result from getInputline, whose type is: (MonadException m) => IO String -> InputT m (Maybe String) I'd like to get just the Maybe String part. I'm well aware that in general there is no way to strip a monad, as explained in this…
dimid
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Using mtl's MonadReader with haskeline has type error

I want use InputT (ReaderT Int IO) a with MonadReader Int. I write below code to make instance MonadReader on InputT {-# LANGUAGE FlexibleInstances #-} {-# LANGUAGE MultiParamTypeClasses #-} {-# LANGUAGE UndecidableInstances #-} module…
juhyung park
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How to write ~/.haskeline so that ghci or haskeline can behave properly on `home` and `end`

My question is how to make my ghci react properly on my home and end press. I learned that ghci use haskeline to react to user input, and haskeline's behavior is partially defined in ~/.haskeline to some extent. I have being suffering from the lack…
TorosFanny
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How to clean ghci command history?

I have read on a simmilar question that GHCI is written on haskeline lib but I must admit that that doesn't help me enough. I tried import System.Console.Haskeline.History and calling the emptyHistory but I do not know to to reference to the…
ditoslav
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cabal-install-0.10.2 failed during the building phase

I was trying to install haskeline, it's my first time installing using cabal, and here is what I got. What should I do? . sudo cabal install haskeline Password: Config file /Users/arie/.cabal/config not found. Writing default configuration to…
Arie
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readInputLine with IO String

I would like to read an input string with a custom prompt, however the prompt string comes from impure context, thus I can't use readInputLine as is. I've tried to implement a function based on this answer getLineIO :: MonadException m => IO String…
dimid
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