This is an early preview of some of the breaking changes in the upcoming 0.3.0 release.

New Features

New API: instead of taking in single characters, the _feed function now takes in blocks of characters at once, to improve efficiency
end support is now optional. This is part of the API changes, because now end handling is through a separate _end function.
Fallthrough semantics: the else path of a case node, as well as jumps into catch blocks no longer consume a character, and instead
properly forward it to the first match in the target block.

Infrastructure Changes