Created
April 30, 2018 05:01
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| output :: Parser (Maybe OutFilename) | |
| output = | |
| ( \x -> if x == "none" then Nothing else Just x ) <$> strOption | |
| ( long "output" | |
| <> short 'o' | |
| <> value "none" | |
| <> metavar "FILENAME" | |
| <> help "Output file" ) | |
| <|> | |
| flag' Nothing | |
| ( long "stdout" | |
| <> help "Stdout" ) |
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