parseLinuxHuman static method

ParseResult<ByteConverter> parseLinuxHuman(String input)

Parse Linux ls -lh style sizes (e.g., 1.1K, 15M, 2.0G)

Implementation

static ParseResult<ByteConverter> parseLinuxHuman(String input) {
  final m = RegExp(r'^\s*([0-9]+(?:\.[0-9]+)?)\s*([KMGTP]?)\s*$',
          caseSensitive: false)
      .firstMatch(input.trim());
  if (m == null) {
    return ParseResult.failure(
      originalInput: input,
      error: const ParseError(message: 'Invalid linux human size'),
    );
  }
  final numStr = m.group(1)!;
  final unit = (m.group(2) ?? '').toUpperCase();
  final factor = switch (unit) {
    '' => 1.0,
    'K' => 1024.0,
    'M' => 1024.0 * 1024,
    'G' => 1024.0 * 1024 * 1024,
    'T' => 1024.0 * 1024 * 1024 * 1024,
    'P' => 1024.0 * 1024 * 1024 * 1024 * 1024,
    _ => 1.0,
  };
  final value = double.parse(numStr) * factor;
  return ParseResult.success(
    originalInput: input,
    value: ByteConverter(value),
    normalizedInput: '$value B',
    detectedUnit: 'B',
    isBitInput: false,
    parsedNumber: value,
  );
}