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module Choc.Parser (
module Text.Parsec,
Parser,
lexeme,
reservedOp,
reserved,
symbol,
parens,
integer) where
import Text.Parsec
import qualified Text.Parsec.Token as T
import Text.Parsec.Language (emptyDef)
import Data.Functor.Identity (Identity)
type Parser a = Parsec String () a
lexer :: T.GenTokenParser String u Identity
lexer = T.makeTokenParser (emptyDef {
T.commentLine = ";",
T.reservedNames = ["L", "B", "C"],
T.reservedOpNames = ["->"]
})
lexeme :: Parser a -> Parser a
lexeme = T.lexeme lexer
reservedOp :: String -> Parser ()
reservedOp = T.reservedOp lexer
reserved :: String -> ParsecT String u Identity ()
reserved = T.reserved lexer
symbol :: String -> Parser String
symbol = T.symbol lexer
parens :: Parser a -> Parser a
parens a = lexeme $ between (symbol "(") (symbol ")") a
integer :: Parser Integer
integer = T.integer lexer
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