TatSu 4.1.0

[Juancarlo Añez]

https://github.com/neogeny/TatSu

竜 TatSu (the successor to Grako) is a tool that takes grammars in a variation of EBNF as input, and outputs memoizing(Packrat) PEG parsers in Python.

4.1.0 @ 2017-05-21

Added

• New support for left recursion with correct associativity. All test cases pass.
• Left recursion is enabled by default. Use the @@left_recursion :: False directive to diasable it.
• Renamed the decorator for generated rule methods to @tatsumasu.
• Refactored the tatsu.contexts.ParseContext for clarity.
• The @@ignorecase directive and the ignorecase= parameter no longer appy to regular expressions (patterns) in grammars. Use (?i) in the pattern to ignore the case in a particular pattern.
• Now tatsu.g2e is a library and executable module for translating ANTLR grammars to TatSu.
• Modernized the calc example and made it part of the documentation as Mini Tutorial.
• Simplified the generated object models using the semantics of class attributes in Python_

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Juancarlo Añez

tel:+58(414)901-2021
skype:juancarloanez