Penny.Steel.Expressions

Documentation

data ExprDesc

Constructors

Infix

RPN

Instances

Eq ExprDesc

Show ExprDesc

type Error = Text

data Token a

A single type for both RPN tokens and infix tokens.

operand :: Pdct a -> Token a

opAnd :: Token a

opOr :: Token a

opNot :: Token a

openParen :: Token a

closeParen :: Token a

parseExpression :: ExprDesc -> [Token a] -> Exceptional Error (Pdct a)