Questions tagged [haskell]
Haskell is a purely functional programming language, general purpose, named after the logician Haskell Curry.
22
questions with no upvoted or accepted answers
3
votes
1
answer
955
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xmonad: focus window when mouse is moved
In my xmonad config, I have set focusFollowsMouse=true so that a window is focused when the mouse pointer is moved onto it. However, I would also like a window to become focused when the mouse pointer ...
- 31
3
votes
1
answer
399
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Installing EclipseFP on Mac OS X
I am trying to install EclipseFP. I'm running OS X Mavericks.
I've tried following both the official installation instructions and the advice in this answer on SU, but I'm still having the same ...
- 31
3
votes
0
answers
293
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libedit ignores editrc file in Ubuntu Lucid
I'm trying to get ghci (Haskell's interactive command line) to handle Ctrl+Left and Ctrl+Right arrows properly rather than showing garbage like this:
Prelude> 1;5D1;5C
At the bottom of this bug ...
- 2,288
2
votes
1
answer
1k
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XMonad, spawn mutliple terminals on startup on different workspaces
Is it possible to spawn multiple terminals on startup on different workspaces?
I have a bunch of terminals and Firefox which I would like to have running on startup. XMonad places Firefox correctly, ...
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2
votes
0
answers
329
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xmonad: mouse hover hook
I'm trying to make xmonad focus the window underneath the pointer when the mouse is moved, regardless of which window is focused. This was addressed in this question; however, the provided solution ...
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2
votes
0
answers
283
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Installing haskell platform fails
I am trying to install haskell-platform-2011.2.0.1 onto my SUSE 11.4. I have got all the dependencies required for ./configure, which works ok. But when getting to make, it builds with this error:
...
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2
votes
0
answers
624
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ghc6 install trouble: hGetContents: invalid argument (invalid UTF-8 byte sequence)
Having trouble installing ghc6 on Ubuntu Maverick via apt.
Here's what seems to be the relevant error that comes up when I try to (apt-get|aptitude) install ghc6:
A package failed to install. ...
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1
vote
0
answers
64
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When running stack build for with scalpel as a dependency, I encounter exitFailure1
Currently using stack to build the project with only base and scalpel as my 2 dependencies.
This is the error log:
2019-03-31 19:47:34.154259: [info] curl-1.3.8: configure
2019-03-31 19:47:34.154652:...
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1
vote
1
answer
1k
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Installing ghc-mod on Windows
I am trying to set up Atom as my Haskell IDE. I have already installed Haskell, and all of the Haskell plugins I need in Atom. I ran cabal install ghc-mod, which failed to install/configure old-time, ...
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1
vote
0
answers
155
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Running Helm in VirtualBox
I've written a game in Haskell using Helm, but I'm having problems when I try to run the game in my virtual box. I have tried running the game on other (Linux) computers and it works well, but when I ...
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1
vote
0
answers
322
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Installing leksah from source
I tried to install leksah via cabal but I got tons of different build errors so I tried to build it from git.
I followed this guide http://www.leksah.org/download.html and I was able to build binary-...
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1
vote
1
answer
216
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Installing haskell ghc fails
I am trying to install Haskell-2012.4.0.0.exe on my computer running windows 7.
When I run the installer I get the following message and the installation fails,
Installer integrity check has failed. ...
- 3,432
0
votes
0
answers
47
views
Trying to understand importing modules in ghci using cabal
I've recently begin learning to code in Haskell -- in general all is going well, but one irritation that repeatedly rears its head is ghci not recognizing modules on hackage when I try to use them.
...
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0
votes
0
answers
72
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VS Code Haskero debug configuration on Ubuntu
I am trying to configure VS Code for Haskell. I use Haskero extension, which works great for code navigation, highlighting etc. However, for some reason when I try to start a debugging session I ...
- 101
0
votes
1
answer
745
views
Xmonad change keybinds based on keyboard layout
Is there there a way to define different keybindings in Xmonad depending on the current keyboard layout? For example, if I switch between standard US and Dvorak keyboard layouts, is there a way to ...
- 101
0
votes
0
answers
513
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Dump memory of process which exits immediately
I am doing a little keygen challenge (written in Haskell), which accepts one commandline argument (a license) and exists after checking if the provided string is valid or not.
Hence I am not able to ...
0
votes
1
answer
429
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Xmonad, How to set up a grid of workspaces?
I want to have 9 workspaces as a grid. And to navigate them using the arrow-keys. So far I can navigate with the arrow-keys, but I want to get rid of the "wrap-around". For example, if workspace 9 is ...
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0
votes
1
answer
2k
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Haskell error with modules
I had Haskell platform installed on my computer and it worked fine until today. Today, when I wanted to load a file in prelude I got this error:
Could not find module `Test.QuickCheck'
Use -v to see ...
- 1
0
votes
1
answer
728
views
cygwin doesn't recognize config.guess when installing Haskell package
I am trying to install a Haskell package on Windows 10 64-bit. I installed cygwin for x64 architecture. Later I installed automake-1.15 using cygwin's setup file. I downloaded the latest config.guess ...
user599239
0
votes
1
answer
29
views
How can I add an extra flag to Leksah?
How can I add an extra flag to Leksah?
I'm getting this error:
You need -XDeriveDataTypeable to derive an instance ....
Where can I add the extra flag in Leksah?
- 705
0
votes
1
answer
3k
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Xmonad can't find module XMonad
Whenever xmonad starts, restarts, or is recompiled, I get an xmessage:
xmonad.hs:1:8:
Could not find module `XMonad'
Perhaps you meant
Monad (needs flag -package haskell98-2.0.0.2)
...
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0
votes
1
answer
34
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Installing Haskell math-functions-0.3.1.0 hangs
Trying to install Haskell datasets (http://hackage.haskell.org/package/datasets).
The installation hangs when building math-functions-0.3.1.0.
Tried to install individual dependencies, and again had ...
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