chatter-0.3.0.0: changelog.md

= 0.3.0.0 =

 - Changed the Sentence and TaggedSentence data types to be actual
   tree structures with real types at the respective
   layers. ChunkedSentence and ChunkOr were also added to facilitate
   phrase and clause chunking.

 - Added a POS Tag data type for Brown corpus tags, and a Chunk type for
   Chunks as well (in the Brown module, but that's probably not the best
   place, given that the chunks have nothing to do with the actual Brown
   corpus.)

 - Updated the Parsec Examples to use the typed tags/chunks.

 - Regenerated the defaultTager, it uses the Brown tags now instead of
   RawTag.

= 0.2.0.1 =

 - I realized immediately after the 0.2.0.0 release that I broke the
   defaultTagger by adding the protectTerms function to the
   LiteralTagger.  Things broke because (i) there are bugs in that
   functionality, which uses run-time assembled regexes, and (ii) the
   UnambiguousTagger used in the defaultTagger delegates to an instance
   of the LiteralTagger, which pulled in the (semi-broken) protectTerms
   function.  This has been fixed by replacing the tokenizer when the
   LiteralTagger is used as an UnambiguousTagger -- the later tager
   doesn't need the functionality, and it should never have been used
   there anyway.

 - Added a bevy of tests to cover the above fix.

 - Added tests (currently breaking) that exercise the broken bits of
   the protectTerms function.

= 0.2.0.0 =

 - Added support for expressing information extraciton patterns via Parsec.
 - Misc. bug fixes.