* SequenceableCollection >> #asSequenceParser allows a much terser definition of keyword parsers.
* XTReadStream >> #parsing: constructs a stream that can parse itself stacked on a position tracking stream stacked on the original stream.
* Stripped #isEmpty calls from all tests. Compaction still uses it: I haven't figured out how to pass the cache around yet. (Name: Parsing-Derivatives-fbs.16
Author: fbs
Time: 16 April 2013, 8:27:00.477 am
UUID: 4fdde2b4-ece0-4d19-9a35-770b9e9ab0c5
Ancestors: Parsing-Derivatives-fbs.15)