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definition:
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repLoop :: ReplState -> IO ()
repLoop rst = do
putStr prompt >> hFlush stdout
eof <- isEOF
if eof then cleanUpAndExitRepl rst
else mGetLine >>= maybe (cleanUpAndExitRepl rst) (checkInput . strip)
where
prompt = calcPrompt rst
checkInput inp
| null inp
= repLoop rst
| ord (head inp) == 0 -- indicates sometimes EOF
= cleanUpAndExitRepl rst
| otherwise
= do when (withEcho rst) $ putStrLn $ prompt ++ inp
processInput rst inp
|
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demand:
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no demanded arguments
|
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deterministic:
|
deterministic operation
|
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documentation:
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-- The main read-eval-print loop:
|
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failfree:
|
<FAILING>
|
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indeterministic:
|
referentially transparent operation
|
|
infix:
|
no fixity defined
|
|
iotype:
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{(_) |-> _}
|
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name:
|
repLoop
|
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precedence:
|
no precedence defined
|
|
result-values:
|
_
|
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signature:
|
REPL.State.ReplState -> Prelude.IO ()
|
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solution-complete:
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operation might suspend on free variables
|
|
terminating:
|
possibly non-terminating
|
|
totally-defined:
|
possibly non-reducible on same data term
|