toSnakeCase method

Implementation

String toSnakeCase() {
  return trim()
      .replaceAllMapped(
        RegExp(r'([a-z0-9])([A-Z])'),
        (match) => '${match.group(1)}_${match.group(2)}',
      )
      .toLowerCase()
      .replaceAll(RegExp(r'[^a-z0-9]+'), '_')
      .replaceAll(RegExp(r'_+'), '_')
      .replaceAll(RegExp(r'^_+|_+$'), '');
}