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Revision as of 17:12, 11 January 2009 by Dougm (talk | contribs) (error in loaded file precludes doing anything else)
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NOTE: This page should be moved to

This is a list of bugs and features, and peoples thoughts on them. Please just add things, if it's an opinion on a feature or something, please sign your name. Especially if a feature is important to you, say how important it is and why you think its a good idea.


These aren't really bugs, they just need looking at before a final release. Mainly just polishing rough edges and checking for consistency.

  • Unicode
  • update the documentation
  • keyboard accelerators, Ctrl+C, Ctrl+V etc.
  • correctly align and space the options dialog
  • add more text editor support (as people ask!)


These are things which are accepted as being wrong


A Windows release needs a working ffihugs, and we also need the modules that use the FFI to work. This is probably mostly just a matter of testing. However foreign import wrappers compiled with MinGW don't seem to work with the MSVC-compiled WinHugs. (They're used by the Win32, OpenGL and GLUT packages.) I don't see how we'll fix that.

User's guide entry for WinHugs

Does the WinHugs bundle include plain hugs and runhugs? What libraries are in the big bundle?

Fresh libraries

Are you generating fresh libraries (using MinGW) for your bundles? (Answer, no, hence a bug)

Copy/Paste gives formatted text

Should give plain text, but gives coloured text, esp annoying for pasting in emails etc.

Excessive clearing

Excessive clearing of previous part of the screen, once it starts to wrap round

Occasional screen glitches

I don't know why these happen, the screen code is rather complicated...

Terminal interaction

Inline system calls, i.e. "system dir" returns the results to the terminal, not the WinHugs window.

Textpad vs DDE

Open textpad with new command: C:\Program Files\TextPad 4\TextPad.exe -s %s(%d) (fixes DDE problems on certain systems, opens multiple instances on others...)


(colon)edit starts editing a weird file. Should create a new file in my documents and open that.

Automated package build

Required, so I can release things more easily and never get it wrong

FFI doesn't work

Nothing to do with FFI works, since I don't have a clue how FFI works myself.

Cleanup after errors

Interpreter fails to clean up after detecting an error in a loaded file. Symptom:

Hugs> :l foo.hs
winhugs reports syntax error
Hugs> 2
winhugs reports same syntax error


cpphs support

Allow it to compile files with preprocessor directives, by automatically running cpphs on them first.

Installer size reduction

reduce size of installer. it can be done in many ways but at least i'm not glad to download 16 megs that can be really packed in 2 megs

Less verbose file listing

Should be an option to list all files not in the Hugs directory loaded

Command history

also i want to suggest saving history of commands in the registry (or disk file) - this proved to be very useful in other shells. and about window with list of all commands - my shell (FAR manager) saves all the commands i use (now this list contains ~5000 ones!) and when i open this list and start to type some word, it just filers whole list and show only commands which contains this sequence of letters. that is damn useful. just for example i open this window and typed "hugs" - FAR filters out 146 commands which includes this word:

Error highlighting

When an error occurs, see if you can "hilight" the bad bit on the screen.

Bracket matching

See if you can automatically match brackets when typing at the prompt

Automatic type display

When you type a lexeme, see if you can automatically put its type in the status bar.