[Haskell-beginners] how to access command line arguments
marco-oweber at gmx.de
Sat Aug 14 23:59:39 EDT 2010
Excerpts from prad's message of Sun Aug 15 05:39:00 +0200 2010:
> is the former the better way to do it then? or are there other
If you don't want to use existing option parsers I'd recommend this
args <- getArgs
case args of
first:last:z -> ...
_ -> show_usage
where show_usage = print "expected arguments: first last z"
this way you can "die cracefully" if options are passed the program
it didn't expect.
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