I am writing a Java program with a call to a Haskell module M.hs,
in order to evaluate some _expression_ expr.
A very simple idea, which I got somewhere in the net, is to create a
Process object p which executes a GHC command-line instruction:
Process p = Runtime.getRuntime();
p.exec( " ghc M.hs -e \"expr\" " );
This would be very simple, if it worked...
My problem is that expressions i want to evaluate involve
strings, and GHC command-line 'ghc' misinterprets some special symbols when it parses double quoted strings.
For instance,
ghc -e " reverse \"2<3\" " gives an error!
Thus any one know a simple way around this?
The only one obvious to me is to create a temporary
Haskell module M_tmp.hs, with the _expression_ to be evaluated,
which is then executed through a command-line instruction
like
ghc M_tmp.hs -e main
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