Miguel Negrao wrote:
cabal install regex-base parsec-3.1.1 MissingH --reinstall --constraint='mtl == 2.1’
With this command it installs correctly, I can now run all the examples. All seem to work fine except CRUD that crashed at some point.
Great! By the way, the crash is fixed in the development version of wxHaskell https://github.com/jodonoghue/wxHaskell
No, you have to create timers yourself. It's not very difficult, though, you can just create a wxWidget and listen to its command event.
Is any generality lost because of this or are the approaches equivalent ?
Once you have a timer, you can make a behavior time :: Behavior t Time that indicates the current time and thus allows you to write functions that depend on the current clock time, just like in Conal's papers. In other words, the approaches are largely equivalent. The thing is just that different GUI or audio frameworks tend to have different implementations of timers and reactive-banana can't decide which one is more appropriate. For instance, Henning Thielemann uses ALSA-timers in his reactive-balsa package http://hackage.haskell.org/package/reactive-balsa-0.0 At some point, I intend to offer some common time-related functionality (for example as in the Wave.hs example) for different backends. Best regards, Heinrich Apfelmus -- http://apfelmus.nfshost.com