v0.5.0

Warning: Breaking changes to the public interface.

Added

• Grammar.validate() raises ValueError for invalid grammars and returns None otherwise.
• SyntaxSymphony.fuzz_tree() generates complete trees, replacing tree_fuzz().

Fixed

• Reject grammars with rules that cannot finish and fix rule selection for recursive grammars.

Changed

• Fuzzers keep their own copy of the grammar. Create a new fuzzer to use edited rules.

Removed

• Internal helpers are now private, and seen arguments are removed. See the migration guide.