compromise/src/result/subset/values/toNumber/validate.js

natural language processing in the browser

'use strict';
const words = require('./data')

//prevent things like 'fifteen ten', and 'five sixty'
const isValid = (w, has) => {
  if (words.ones[w]) {
    if (has.ones || has.teens) {
      return false;
    }
  } else if (words.teens[w]) {
    if (has.ones || has.teens || has.tens) {
      return false;
    }
  } else if (words.tens[w]) {
    if (has.ones || has.teens || has.tens) {
      return false;
    }
  }
  return true;
};
module.exports = isValid