parse static method

PreciseDateTime parse(
  1. String formattedString
)

Constructs a new PreciseDateTime instance based on formattedString.

The function parses a subset of ISO 8601, which includes the subset accepted by RFC 3339.

This includes the output of toString, which will be parsed back into a PreciseDateTime object with the same time as the original.

Examples of accepted strings:

  • "2012-02-27 13:27:00,123456Z"
  • '2022-06-03T12:38:34.366158Z'
  • '2022-06-03T12:38:34.366Z'
  • '2022-06-03T12:38:34.366000Z'
  • '2022-06-03T12:38:35Z'

Implementation

static PreciseDateTime parse(String formattedString) {
  if (formattedString.contains('.')) {
    var split = formattedString.split('.');
    if (split[1].length != 7) {
      split[1] = '${split[1].replaceFirst('Z', '').padRight(6, '0')}Z';
    }

    int microseconds =
        int.tryParse(split[1].substring(3).replaceFirst('Z', '')) ?? 0;
    split[1] = '${split[1].substring(0, 3)}Z';
    return PreciseDateTime(
      DateTime.parse(split.join('.')),
      microsecond: microseconds,
    );
  }

  return PreciseDateTime(DateTime.parse(formattedString));
}