Grammatica Version Information
Version 0.3 (2003-05-04):
-
Created XML generated documentation
The release documentation is now available in both text
and HTML format. Both formats are generated with XSLT from a
single source.
-
Added look-ahead loop detection
The look-ahead calculation now detects grammar loops
and all grammar ambiguities. It should no longer be possible
to cause infinite loops with a malformed grammar.
-
Added ambiguity resolution inside alternatives
Some ambiguities inside productions couldn't previously
be resolved by the LL(k) parser. Productions like
["one"] "one" "two"
contain an ambiguity between
the first element and the second, but it is not inherent. This
is now handled correctly by adding look-ahead sets for
individual production elements.
-
Added expected tokens to parse errors
The parse error exceptions now contains a list of the
expected tokens for the unexpected token errors.
-
Added automatic unit tests for the parser
A JUnit class testing the LL(k) parser has been added.
These tests are executed upon every build to verify the
integrity of the parser.
Version 0.2 (2003-04-20):
-
Addition of an internal regular expression library
This improves tokenizer performance by at least 100%
compared to using the GNU RegExp library.
-
Addition of an analyzer framework with parser callbacks
A code generator has also been added to create default
methods for all tokens and productions in the grammar.
-
Major refactorings of the tokenizer and parser classes
Various other classes have also been improved to simplify
future feature additions.
Version 0.1 (2003-03-29):