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harpy-0.4.1: examples/evaluator/README

The three modules contained in this directory contain an evaluator
for arithmetic expressions.

Load it into ghci using the command

  ghci -XTemplateHaskell Evaluator.hs

or compile it with

  ghc --make -XTemplateHaskell Evaluator.hs

and start it with

  ./Evaluator

Then type the command

  :help

and start playing with it.