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definition module Sil.Parse

from StdOverloaded import class ==, class toString

from Data.Error import :: MaybeError

from Sil.Parse.Parser import class name
from Sil.Syntax import :: Program, :: Literal

:: Token
	= TParenOpen          //* (
	| TParenClose         //* )
	| TBraceOpen          //* {
	| TBraceClose         //* }
	| TComma              //* ,
	| TSemicolon          //* ;
	| TAssign             //* :=
	| TLit Literal        //* True; False; integers
	| TIf                 //* if
	| TWhile              //* while
	| TReturn             //* return
	| TMachineCode String //* |~ machine code
	| TName String        //* a string

instance == Token
instance toString Token
instance name Token

:: ParseError
	= E.a: Invalid String a & toString a
	| Expected String
	| UnknownError

instance toString ParseError

tokenise :: [Char] -> MaybeError ParseError [Token]

parse :: ([Token] -> MaybeError ParseError Program)