Inputmask/lib/masktoken.js

export default function (isGroup, isOptional, isQuantifier, isAlternator) {
  this.matches = [];
  this.openGroup = isGroup || false;
  this.alternatorGroup = false;
  this.isGroup = isGroup || false;
  this.isOptional = isOptional || false;
  this.isQuantifier = isQuantifier || false;
  this.isAlternator = isAlternator || false;
  this.quantifier = {
    min: 1,
    max: 1
  };
}