normLocale function

String normLocale(
  1. String localeString, [
  2. String targetSeparator = '_'
])

Normalizes localeString with targetSeparator to have consistency around the naming conventions usage in the CLI (and other tools)

Implementation

String normLocale(String localeString, [String targetSeparator = '_']) {
  /// take only lang code and country code. (zh_Hant_HK, fr_FR, fr_CA)
  localeString = localeString.trim().toLowerCase();
  localeString = localeString.replaceAll('_', '-');
  final parts = localeString.split('-');
  return <String>[
    parts[0].toLowerCase(),
    if (parts.length > 2) parts[1].titleCase,
    if (parts.length > 2) parts[2].toUpperCase(),
    if (parts.length == 2) parts[1].toUpperCase(),
  ].join(targetSeparator);
  // return .take(2).join(targetSeparator);
}