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{-# LANGUAGE RecordWildCards #-}
module Main
( main
) where
import qualified Data.Text.Lazy.Builder as Text.Builder
import qualified Data.Text.Lazy.IO as Text.Lazy
import Graphics.Fountainhead (dumpFontFile)
import Options.Applicative
( ParserInfo(..)
, (<**>)
, argument
, execParser
, header
, help
, helper
, info
, long
, fullDesc
, metavar
, optional
, progDesc
, short
, str
, strOption
)
data Options = Options
{ tableName :: Maybe String
, fontFile :: FilePath
} deriving (Eq, Show)
operationOptions :: ParserInfo Options
operationOptions = info (options <**> helper)
$ fullDesc
<> progDesc "Dumping the contents of a TrueType Font file."
<> header "fountainhead - font parser"
where
options = Options
<$> tableNameArgument
<*> argument str (metavar "FONTFILE")
tableNameArgument = optional $ strOption
$ long "table"
<> short 't'
<> metavar "tablename"
<> help "Dump only the specified table. Otherwise dump all tables"
main :: IO ()
main = execParser operationOptions >>= handleArguments
where
handleArguments Options{..}
= putStrLn ("Dumping File:" <> fontFile <> "\n\n")
>> dumpFontFile fontFile tableName
>>= either print (Text.Lazy.putStrLn . Text.Builder.toLazyText)
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