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definition:
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readModuleComment :: String -> IO String
readModuleComment filename = openFile filename ReadMode >>= readHeader []
where
readHeader cs h = do
eof <- hIsEOF h
if eof then hClose h >> return ""
else do l <- hGetLine h
case classifyLine l of
ModDef -> hClose h >> return (unlines (reverse cs))
FuncDef _ -> hClose h >> return "" -- no module header
DataDef _ -> hClose h >> return "" -- no module header
OtherLine -> readHeader cs h
Comment c -> readHeader (c:cs) h
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demand:
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no demanded arguments
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deterministic:
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deterministic operation
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documentation:
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-----------------------------------------------------------------------
Reads the module comment of a Curry source file.
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failfree:
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<FAILING>
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indeterministic:
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referentially transparent operation
|
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infix:
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no fixity defined
|
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iotype:
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{(_) |-> _}
|
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name:
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readModuleComment
|
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precedence:
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no precedence defined
|
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result-values:
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_
|
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signature:
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String -> Prelude.IO String
|
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solution-complete:
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operation might suspend on free variables
|
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terminating:
|
possibly non-terminating
|
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totally-defined:
|
possibly non-reducible on same data term
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