Text.ParserCombinators.Parsec.ParserFunction

Documentation

data Expr

The Expr data type provides a basis for ordering mathematical operations.

Instances

Eq Expr

Ord Expr

Show Expr

evaluateExpression :: String -> [(Char, Double)] -> Double

evaluateExpression evaluates a mathematical expression s using the variable map m.

stringToExpr :: String -> Maybe Expr

stringToExpr parses an expression and returns an expression tree of type Expr.

buildExpr :: Parser Expr

expressionTable :: [[Operator Char st Expr]]

factor :: Parser Expr

variables :: Parser Expr

number :: Parser Expr

evaluate :: Map String Double -> Expr -> Double

evaluate takes a map and expression tree to produce a numerical value.