- 2009-08-14
- Last version Yappy 1.9.3
  
- Detection of Python shelve db type, when reusing a parsing table
- Exceptions updated to Python 2.6
  
 
- 2009-06-30
- Last version Yappy 1.9.1.
 
- 2008-05-30
- Corrected lexer behaviour with empty strings (bug
  reported by Stephen Dann). 
 
- 2006-07-10
-  
 
- In grammar
  specifications, separation between semantic rules (inside - Semantic rules  a la Bison with semantic arguments:
- The class Yappy allows  dictonary arguments that can
  specify the directories where parser tables are stored (suggestion
  due to  Guillaume Pothier)
 
 
- 2005-07-31
-  
 
- Corrected version for python2.4, that does not have
    module pcre.
- Corrected handling of some exceptions in LRparser (thanks due to  Ian Jackson)
  
 
- 2004-03-25
-  
 
- Corrected bug in Yappy_grammar semantic rules,
  concerning precedence values.
- If _DEBUG is set, the collection of items used in
  the generation of a LR table is printed. 
  
 
 
Nelma Moreira, Rogério Reis 2010-06-10