Question: HASKELL - Write a function called prob1, that parses a String and returns a PExp. Input strings for this function are tokens that are either

HASKELL - Write a function called prob1, that parses a String and returns a PExp. Input strings for this function are tokens that are either numbers or operators separated by whitespace. Numbers can be an arbitrarily long strings of digits.

data Op = Val Int | Plus | Minus | Mul | IntDiv deriving (Show, Eq)

type PExp = [Op]

HASKELL - Write a function called prob1, that parses a String and

Homework3*> prob1 "200 + -* /" Val 200,Plus,Minus ,Mul, IntDiv] Homework3*> probi"+ -* 200" [Plus,Minus,Mul,IntDiv,Val 200] Homework3*> prob1 "200 + -* /" Val 200,Plus,Minus ,Mul, IntDiv] Homework3*> probi"+ -* 200" [Plus,Minus,Mul,IntDiv,Val 200]

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!