1. Platform independence
- Posted by Daniel Johnson <dpj22 at CAM.AC.UK>
Mar 09, 2000
-
Last edited Mar 10, 2000
I am continually aware as I write my code for Linux how some of it probably
won't work when I go back home and want to run it on DOS. There are a number
of significant differences which cannot be covered in the intepreter, such as
file system delimeters (\ on DOS, / on Unix, : on Mac) and command line
option/file distinguisher (/ on DOS, - on Unix)
I want to be able to write Euphoria code that is write once run anywhere, like
the philosophy behind Java, and I think we need a standard include file that
does all this for us.
So far I have developed this code :
-----------------------------
include misc.e
function iif(integer logical, object tr, object fa)
if logical then
return tr
else
return fa
end if
end function
global constant DIV=iif(platform()=LINUX,'/','\\'),
OPTION=iif(platform()=LINUX,'-','/')
-----------------------------
This code is an absolutely ghastly hack and could be done much more
cleanly but demonstrates my idea. I am sure other people can think of
different incompatibilities which ought to go in.
Because of its interpreted nature Euphoria can offer 'run anywhere' better
than even ANSI C. I would like to see EU for DOS and Linux be the same
thing, not different implementations on different platforms, I also think
this makes Eu much more saleable.
Daniel
--
Daniel Johnson Engineer, smartypants and clown
Jesus College, Cambridge all at a very reasonable price
dpj22 at cam.ac.uk
zeus.jesus.cam.ac.uk/~dpj22 talk dpj22 at jewish.jesus.cam.ac.uk
