Referring to Exercise E7.7, if operators other than +, -, *, and / were involved, and each operator came with an additional specification of whether it associated left to right or right to left, how would you change the infixToPostfix algorithm to account for this?

Exercise E7.7

In the infix-to-postfix conversion algorithm infixToPostfix what is the associativity of operators that have the same precedence? For instance, would the expression

a+b-c

be evaluated in a left-to-right manner

((a + b) - c)

or inaright-to-left manner?

(a + (b - c))