fudgets: The Fudgets Library
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Fudgets is a Graphical User Interface Toolkit built in Haskell on top of the X11 Windows system in the early 1990s. There is an FPCA-93 paper about it. Fudgets also makes it easy to create client/server applications that communicate via the Internet.
This package includes the Fudgets library and a few small examples and demo applications.
For installation instructions, see the last section of the Readme.
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Properties
| Versions | 0.18.3, 0.18.3.1, 0.18.3.2 |
|---|---|
| Change log | ChangeLog.md |
| Dependencies | array, base (>=4 && <5), containers, directory (>=1.2.3), fudgets, old-time, parallel, process, random, time, unix [details] |
| License | LicenseRef-OtherLicense |
| Author | Thomas Hallgren and Magnus Carlsson and others |
| Maintainer | Thomas Hallgren |
| Category | GUI, Network, Concurrency |
| Home page | https://www.altocumulus.org/Fudgets/ |
| Uploaded | by ThomasHallgren at 2022-05-14T17:03:47Z |
Modules
- AllFudgets
- ConnectF
- ContribFudgets
- DialogueIO
- DoRequest
- Fudgets
- HbcUtils
- HyperGraphicsF2
- IOUtil
- ReactionM
- ReactiveF
- SuperMenuF
- TreeBrowser
- TypedSockets
Flags
Manual Flags
| Name | Description | Default |
|---|---|---|
| developer | Enable options useful for developers of this library | Disabled |
Automatic Flags
| Name | Description | Default |
|---|---|---|
| old-time | Use the old-time package | Enabled |
Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info
Downloads
- fudgets-0.18.3.2.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
Maintainer's Corner
For package maintainers and hackage trustees
Readme for fudgets-0.18.3.2
[back to package description]¤ Fudgets ¤
Fudgets is primarily a Graphical User Interface Toolkit implemented in Haskell on top of its own binding to the Xlib library of the X Windows system. Fudgets also makes it easy to create client/server applications that communicate via the Internet. The Hello world program fits on a single line:
main = fudlogue (shellF "Hello" (labelF "Hello world!"))
The key abstraction is the fudget. A fudget is a stream processor with high-level and low-level streams. The high level streams are used for communication between fudgets within a program. The low level streams are for communication with the I/O system.
Fudgets are combined using various combinators for parallel composition, serial composition and loops.
Fudgets was originally implemented in Lazy ML in the early 1990s, then converted to Haskell. It was thus designed before monadic IO was introduced in Haskell and early versions did not make use of Haskell's type classes at all.
Documentation
- Your first 8 Fudgets program. Gentle Introduction.
- Fudgets User's Guide. Naming conventions and some other practical things.
- Fudget Library Reference Manual. (Haddock did not exist back when Fudgets were created.)
- The FPCA-93 paper about Fudgets, the first publication describing Fudgets.
- See the Fudgets home page for more info.
Installing Fudgets from Hackage
On Linux systems
sudo apt install libxext-devcabal install fudgets
(The first command installs Xlib etc on Debian-based distributions, the command and package maybe be different on other Linux distributions.)
On macOS
(The preprocessor in clang does not preserve layout, so we use gcc
instead. Also, with ghc>=8.10.3 there seems to be problem with the -optP
option, so we use a helper script hsrc/fudcpp to call cpp with the
correct options.)