44 lines
1.1 KiB
Haskell
44 lines
1.1 KiB
Haskell
{-# LANGUAGE OverloadedStrings #-}
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module Mima.Parse.FlagFile
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( parseFlagFile
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, readFlagFile
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) where
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import Control.Monad
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import qualified Data.Map as Map
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import qualified Data.Set as Set
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import qualified Data.Text as T
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import Text.Megaparsec
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import Mima.Flag
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import Mima.Parse.Common
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import Mima.Parse.Lexeme
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import Mima.Parse.Weed
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import Mima.Word
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lAddress :: Parser MimaAddress
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lAddress = lexeme fixedWidthHexAddress
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lFlags :: Parser (Set.Set Char)
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lFlags = Set.unions <$> some (lexeme flag)
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lAddressRange :: Parser AddressRange
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lAddressRange = do
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firstAddress <- lAddress
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secondAddress <- (symbol "-" *> lAddress) <|> pure firstAddress
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pure $ range firstAddress secondAddress
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lLine :: Parser (AddressRange, Set.Set Char)
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lLine = do
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a <- lAddressRange
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void $ symbol ":"
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f <- lFlags
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hidden lNewlines
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pure (a, f)
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parseFlagFile :: Parser RawFlags
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parseFlagFile = space *> many lNewline *> (Map.fromList <$> many lLine) <* hidden eof
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readFlagFile :: FilePath -> T.Text -> Either WeedErrorBundle RawFlags
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readFlagFile = parse parseFlagFile
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