proj4js/lib/match.js

var ignoredChar = /[\s_\-\/\(\)]/g;
export default function match(obj, key) {
  if (obj[key]) {
    return obj[key];
  }
  var keys = Object.keys(obj);
  var lkey = key.toLowerCase().replace(ignoredChar, '');
  var i = -1;
  var testkey, processedKey;
  while (++i < keys.length) {
    testkey = keys[i];
    processedKey = testkey.toLowerCase().replace(ignoredChar, '');
    if (processedKey === lkey) {
      return obj[testkey];
    }
  }
}