|Part of Yhc|
Yhe is a command-line style tool in the vein of Ghci and Hugs. It consists of a command-line tool, yhe, and a GUI, Gyhe, written using gtk2hs. It was mostly written by Mike Dodds.
Features of Gyhe:
- Single and multi-line input
- Cross-platform gui (works on Linux, Windows and MacOS)
- Syntax-highlighting of input with gtksourceview widget
1 Trying Gyhe
Gyhe is still very much alpha software - if you need a stable haskell command-line gui, I'd suggest you use WinHugs. That said, if you want to try Gyhe:
- Download the yhc-devel branch from darcs
- Ensure that you have the development version of gtk2hs installed.
- Change directory to yhc-devel/src/interactive/
- Run 'make gui'
...and the gyhe executable should be created in yhc-devel/inst/bin
2 Todo List
- Add lazy evaluation - currently we only get a result after the program terminates
- Generally the evaluation code needs a lot of work
- Put the evaluation code into a thread so that the gui doesn't block while evaluating. I've tried this, and the performance advantage is extremely marginal - may be worth while if we implement user interaction with a running process.
- Add file URI support to link to a file and load a text editor. Currently waiting for a response from the gtk2hs people re: clickable regions in TextView widgets.
- Rebuild the icon - the lambda should be centered.
- Fix the makefile to detect the sourceview widget - at the moment it is always off at compile-time
Speculative / Moon on a stick:
- Save the pane-divider position between sessions - I don't know if we really want this?
- Add clickable links into Hoogle
- Handle drag-and-drop events from other processes - probably OS dependant
- Windows version, like WinHugs, using native widgets.
- Closing while maximised and then restarting results in a fullscreen non-maximised window