[Haskell-cafe] Haskell mode for emacs - some questions

[peterv]

Thanks for the info.

Yes, but I can only use GHCI for error checking, because I'm using
GTK2HS/SOE which does not work well with GHCI under Windows, it only runs
when using GHC.

And when I will me using HopenGL, I will want performance, as I will be
doing experiments with particle systems, 3D rendering, etc. Basically the
stuff I did for many years but now using Haskell :)

Having to do anything more than hitting a key to compile and run an
application would simple be unacceptable from the point of view of an imp/OO
developer (all imp/OO IDEs have that). Furthermore, when programming
videogames or special effects, you have to run and test a lot, because what
you see on screen usually 
determines your next actions. 


-----Original Message-----
From: David House [mailto:dmhouse at gmail.com] 
Sent: Tuesday, June 19, 2007 12:34 AM
To: peterv
Cc: haskell-cafe at haskell.org
Subject: Re: [Haskell-cafe] Haskell mode for emacs - some questions

peterv writes:
 > - How can I just compile and run in one go without having to type "ghc
 > --make main.hs" as arguments for the "compile..." command and then typing
 > "main.exe" for "shell command..."? This is what you do all the time when
 > using Visual Studio, Eclipse, etc: just hit the F5 key which builds all
the
 > dependencies and runs one or more generated executables. Easy. Visual
 > Haskell does this (in the cases it does not hang for some unknown
reason).
 > Of course I could dig into ELISP, but somehow I feel this must be
supported
 > somehow. 

Use C-c C-l to load the file into GHCi. This is better than just compiling
it:
you get an interactive environment in which to play around with, test out
functions, etc. You can still 'run' your program by typing 'main' in GHCi.

 > - There seems to be support for "Haskell Font Lock Symbols", which should
 > convert \, -> and maybe other symbols to good looking Unicode fonts. I
can't
 > get the correct fonts working on Windows. Now as I understood this is not
 > really supported because of indentation problems, as underneed the single
 > Unicode arrow character is converted into ->? This is unfortunate,
because
 > that's one of the things I really like about Sun's Fortress: the usage of
 > Unicode symbols makes the text look much more mathematically, versus the
 > half-century-old ASCII text. Furthermore in almost all Haskell books the
 > richer font symbols are used for clarity. Any hints on this topic?

I wouldn't be surprised if this code had bit-rotted, or if there never has
been
Windows support. It's a corner function, used by few and therefore not that
polished. By all means, try it out, and if it doesn't work, feel free to
submit
patches, but I doubt it'll get changed any time soon by a haskell-mode
developer
:)

-- 
-David House, dmhouse at gmail.com