getResemblanceToSearchTerm method

double getResemblanceToSearchTerm(String searchTerm)

Implementation

double getResemblanceToSearchTerm(String searchTerm) {
  final thisWithoutWhitespace = replaceAll(' ', '');
  final searchTermWithoutWhitespace = searchTerm.replaceAll(' ', '');

  final thisWithoutWhitespaceLowerCase = thisWithoutWhitespace.toLowerCase();
  final searchTermWithoutWhitespaceLowerCase =
      searchTermWithoutWhitespace.toLowerCase();

  if (thisWithoutWhitespace == searchTermWithoutWhitespace) {
    return 1.0;
  }

  if (thisWithoutWhitespaceLowerCase ==
      searchTermWithoutWhitespaceLowerCase) {
    return 0.9;
  }

  if (thisWithoutWhitespaceLowerCase
      .startsWith(searchTermWithoutWhitespaceLowerCase)) {
    return 0.8;
  }

  if (thisWithoutWhitespaceLowerCase
      .contains(searchTermWithoutWhitespaceLowerCase)) {
    return 0.7;
  }

  if (thisWithoutWhitespaceLowerCase.containsCharactersInOrder(
    searchTermWithoutWhitespaceLowerCase.codeUnits,
  )) {
    return 0.6;
  }

  return 0.0;
}