Analysis Module Change Log

======================= Trunk (not yet released) =======================

API Changes

 * LUCENE-2413: Deprecated PatternAnalyzer in common/miscellaneous, in favor 
   of the pattern package (CharFilter, Tokenizer, TokenFilter).  (Robert Muir)

 * LUCENE-2413: Removed the AnalyzerUtil in common/miscellaneous.  (Robert Muir)

New Features
   
 * LUCENE-2413: Consolidated Solr analysis components into common. 
   New features from Solr now available to Lucene users include:
   - o.a.l.analysis.commongrams: Constructs n-grams for frequently occurring terms
     and phrases. 
   - o.a.l.analysis.charfilter.HTMLStripCharFilter: CharFilter that strips HTML 
     constructs.
   - o.a.l.analysis.miscellaneous.WordDelimiterFilter: TokenFilter that splits words 
     into subwords and performs optional transformations on subword groups.
   - o.a.l.analysis.miscellaneous.RemoveDuplicatesTokenFilter: TokenFilter which 
     filters out Tokens at the same position and Term text as the previous token.
   - o.a.l.analysis.miscellaneous.TrimFilter: Trims leading and trailing whitespace 
     from Tokens in the stream.
   - o.a.l.analysis.miscellaneous.KeepWordFilter: A TokenFilter that only keeps tokens 
     with text contained in the required words (inverse of StopFilter).
   - o.a.l.analysis.miscellaneous.HyphenatedWordsFilter: A TokenFilter that puts 
     hyphenated words broken into two lines back together.
   - o.a.l.analysis.pattern: Package for pattern-based analysis, containing a 
     CharFilter, Tokenizer, and Tokenfilter for transforming text with regexes.
   - o.a.l.analysis.synonym.SynonymFilter: A synonym filter that supports multi-word
     synonyms.
   (... in progress)

  * LUCENE-2413: Consolidated all Lucene analyzers into common.
    - o.a.l.analysis.PorterStemFilter -> o.a.l.analysis.en.PorterStemFilter
    - o.a.l.analysis.ASCIIFoldingFilter -> o.a.l.analysis.miscellaneous.ASCIIFoldingFilter
    - o.a.l.analysis.ISOLatin1AccentFilter -> o.a.l.analysis.miscellaneous.ISOLatin1AccentFilter
    - o.a.l.analysis.KeywordMarkerFilter -> o.a.l.analysis.miscellaneous.KeywordMarkerFilter
    - o.a.l.analysis.LengthFilter -> o.a.l.analysis.miscellaneous.LengthFilter
    - o.a.l.analysis.PerFieldAnalyzerWrapper -> o.a.l.analysis.miscellaneous.PerFieldAnalyzerWrapper
    - o.a.l.analysis.TeeSinkTokenFilter -> o.a.l.analysis.sinks.TeeSinkTokenFilter
    - o.a.l.analysis.BaseCharFilter -> o.a.l.analysis.charfilter.BaseCharFilter
    - o.a.l.analysis.MappingCharFilter -> o.a.l.analysis.charfilter.MappingCharFilter
    - o.a.l.analysis.NormalizeCharMap -> o.a.l.analysis.charfilter.NormalizeCharMap
    ... (in progress)

Build

 * LUCENE-2413: All analyzers in contrib/analyzers and contrib/icu were moved to the 
   analysis module.  The 'smartcn' and 'stempel' components now depend on 'common'.  
   (Robert Muir)