apply method

SiOptions apply(String? text)

These options with the key = value pairs of text set.

Implementation

SiOptions apply(String? text) {
  if (text == null || text.trim().isEmpty) return this;
  final keys = {..._keys};
  var per = perMode;
  for (final (rawKey, rawValue) in _keyValues(text)) {
    for (final (key, value) in _normalise(rawKey, rawValue ?? 'true')) {
      keys[key] = value;
      if (key == 'per-mode') {
        per = switch (value) {
          'symbol' ||
          'repeated-symbol' ||
          'symbol-or-fraction' => PerMode.symbol,
          'fraction' => PerMode.fraction,
          _ => PerMode.power,
        };
      }
    }
  }
  return SiOptions._(
    per,
    keys,
    _units,
    _unitOptions,
    _prefixes,
    _qualifiers,
    _powers,
  );
}