parse static method
Implementation
static parse(String name) {
if (!name.startsWith(_intervalNamePattern))
throw new FormatException("No interval named $name");
if (name == "TT") {
name = "d5";
}
final match = _intervalNameParsePattern.matchAsPrefix(name);
assert(match != null);
return new Interval(number: int.parse(match![2]!), qualityName: match[1]!);
}