I'm surprised it was necessary for the author to design and write Dart's formatter essentially from scratch. Is there not prior art - formatters for other langu

I'm surprised it was necessary for the author to design and write Dart's formatter essentially from scratch. Is there not prior art - formatters for other languages that enforce a maximum line length? Also, I'm surprised that enforcing a maximum line length was considered so important that it was worth all this work. Even though I personally like to limit line lengths (and I know plenty of people who don't), I'm not sure enforcing such limits are worth this amount of complexity in the formatter, nor the sheer amount of labor required to implement and maintain that complexity. I think the sweet spot is probably Go's `gofmt` - automatic formatting that allows unlimited line lengths (possibly emitting a warning if formatted code exceeds a desired length) seems to provide almost all of the benefits of a formatter while being a much simpler solution.