[Haskell-beginners] hide Perl code inside Haskell program

[José Prous]

you are putting the perl script as the name of the command
you can do something like: rawSystem "perl" ["-e","print \"testing ...\n\";"
]
this is equivalent to call in the shell: perl -e "print \"testing ...\";"
(sorry Hong I din't put reply to all in the fist mail)
On Thu, Sep 10, 2009 at 1:24 PM, Hong Yang <hyangfji at gmail.com> wrote:

> I was trying to hide Perl code inside Haskell program like the following:
>
> > module Main where
>
> > import System.Environment (getArgs)
> > import System.Cmd
>
> > main = do
> >               args <- getArgs
> >               rawSystem pl args
> >            where pl = "#!/usr/bin/perl\n" ++
> >                           "print \"testing ...\n\";"
>
> The program can run, but generates no output at all. Can someone tell me
> any other tricks which might be missing? (Do we need to use pipe here?)
>
> Thanks,
>
> Hong
>
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