CODEWITHSUNDEEP
javascriptregex
AJ4
AJ4

Reputation: 31

How to exclude stuff in parentheses from regex

I have a function that splits an expression or equation into individual terms
This is what I have:

const terms = equation => {
  equation = equation.replace(/\s/g, '').replace(/(\+\-)/g, '-').split(/(?=[\+\-\=])/g);
  for (var i = 0; i < equation.length; i++) {
    if (equation[i].indexOf('=') != -1) {
      equation[i] = equation[i].replace('=', '');
      equation.splice(i, 0, '=');
    }
  }
  return equation;
}

console.log(terms('2(a+6-2)+3-7 = 5a'));

This logs "2(a", "+6", "-2)", "+3", "-7", "=", "5a"
I want it to log "2(a+6-2)", "+3", "-7", "=", "5a"

How do I make it so that it doesn't split at a '+' or '-' if it is in parentheses?

Upvotes: 2

Views: 50

Answers (1)

AJ4
AJ4

Reputation: 31

Thanks to whoever commented
I ended up using this:

const terms = equation => equation.replace(/\s/g, '').replace(/(\+\-)/g, '-').match(/\w*\([^)(]+\)|=|[+-]?\s*\w+/g);

console.log(terms("2(a+6-2)+3-7 = 5a"));

Upvotes: 1

Related Questions