parse static method

VersionBoundaries parse(String text)

Parse

Implementation

static VersionBoundaries parse(String text) {
  var parts = text.trim().split(' ');
  VersionBoundary? min;
  VersionBoundary? max;
  for (var part in parts) {
    if (part.startsWith('>=')) {
      try {
        min = VersionBoundary(Version.parse(part.substring(2)), true);
      } catch (_) {}
    } else if (part.startsWith('>')) {
      try {
        min = VersionBoundary(Version.parse(part.substring(1)), false);
      } catch (_) {}
    } else if (part.startsWith('<=')) {
      try {
        max = VersionBoundary(Version.parse(part.substring(2)), true);
      } catch (_) {}
    } else if (part.startsWith('<')) {
      try {
        max = VersionBoundary(Version.parse(part.substring(1)), false);
      } catch (_) {}
    } else if (part.startsWith('^')) {
      try {
        min = VersionBoundary(Version.parse(part.substring(1)), true);
        if (min.value.major != 0) {
          max = VersionBoundary(Version(min.value.major + 1, 0, 0), false);
        } else if (min.value.minor != 0) {
          max = VersionBoundary(Version(0, min.value.minor + 1, 0), false);
        } else {
          max = VersionBoundary(Version(0, 0, min.value.patch + 1), false);
        }
      } catch (_) {}
    } else {
      try {
        min = max = VersionBoundary(Version.parse(part), true);
      } catch (_) {}
    }
  }
  return VersionBoundaries(min, max);
}