penny-lib-0.8.0.0: Extensible double-entry accounting system - library

Safe HaskellNone

Penny.Steel.Expressions

Synopsis

Documentation

data ExprDesc Source

Constructors

Infix 
RPN 

Instances

type Error = TextSource

data Token a Source

A single type for both RPN tokens and infix tokens.

operand :: Pdct a -> Token aSource

opAnd :: Token aSource

opOr :: Token aSource

opNot :: Token aSource

openParen :: Token aSource

closeParen :: Token aSource

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