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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, using the reStructuredText format instead of Markdown.

This project adheres to Semantic Versioning starting with version 1.1.1.

1.9.0 -- 2020-04-07

Added

  • Add JSGF import resolution.
  • Add new Grammar methods for getting Rule objects by name.
  • Add 'grammar_name', 'rule_name' and 'wildcard_import' Import class properties.
  • Add 'qualified_name' and 'fully_qualified_name' Rule class properties.

Changed

  • Add missing Grammar 'import_names' property.
  • Add missing Grammar 'remove_imports()' method.
  • Change Grammar class to silently reject duplicate Import objects.
  • Rename HiddenRule rule classes to PrivateRule instead and leave in HiddenRule aliases.

Fixed

  • Change Grammar.get_rule_from_name() method to validate the 'name' parameter.
  • Change Grammar.remove_import() to only accept Import objects.
  • Fix bug in Grammar.add_rule() that could cause RecursionErrors.

1.8.0 -- 2020-01-31

Added

  • Add 'case_sensitive' properties to Literal, Rule & Grammar classes.

Changed

  • Change ChildList into a list wrapper class instead of a sub-class.

Fixed

  • Fix a pyparsing-related bug with the Repeat expansion class.
  • Fix issues preventing serialization of expansions, rules and grammars.

1.7.1 -- 2019-07-10

Added

  • Add 'matching benchmark.py' script.

Changed

  • Add a classifier for Python 3.4 in setup.py as it is a supported version.
  • Rewrite Expansion.repetition_ancestor property.
  • Use the setuptools.find_packages() function in setup.py instead of defining packages manually.

Fixed

  • Fix missing call to reset_for_new_match() in Rule.find_matching_part(). Some tests have also been added.

1.7.0 -- 2019-06-19

Added

  • Add Expansion and Rule generate() methods for generating matching strings. Thanks @embie27.
  • Add unit tests for generate() methods into a new test/test_generators.py file. Thanks @embie27.

Changed

  • Include the mock package in requirements.txt (test requirement).

Fixed

  • Fix two rule expansion parser bugs related to unary operators (+ or *).
  • Keep required groupings during parsing to avoid unexpected consequences. Thanks @synesthesiam.

1.6.0 -- 2019-03-17

Added

  • Add support for JSGF alternative weights to the AlternativeSet class and the rule expansion parser.
  • Add 'Expansion.matching_slice' property for getting the slice of the last speech string that matched an Expansion.
  • Add 'Repeat.get_expansion_slices' method for getting matching slices of repeated rule expansions.

Changed

  • Change AlternativeSet 'weights' list to use a dictionary instead.
  • Change grammar class and parser to allow for optional grammar header values.
  • Change input and output of the 'save_current_matches' and 'restore_current_matches' expansion functions.
  • Change jsgf.ext.Dictation expansions to compile as "<DICTATION>" instead of "".
  • Simplify the parser code and improve its performance.
  • Use '<NULL>' instead of '<VOID>' to compile expansions that should have children but don't.

Fixed

  • Fix parser bug where sequences can lose tags. Thanks @synesthesiam.
  • Fix parser bug with sequences and alternative sets.

1.5.1 -- 2018-10-28

Added

  • Add section in parser documentation with EBNF for the grammar parser.

Changed

  • Change install instructions to use pip instead.

Fixed

  • Fix a few problems with the README.
  • Fix missing newlines from Grammar.compile_to_file(). Thanks @daanzu.

1.5.0 -- 2018-09-11

Added

  • Add Expansion.matcher_element property.
  • Add Expansion.invalidate_matcher method.
  • Add Rule.find_matching_part method. Thanks @embie27.
  • Add docstrings to undocumented classes and methods.
  • Add Sphinx documentation project files in docs/ and use autodoc for automatic module, class, class member and function documentation.
  • Add CHANGELOG.rst file and include it in the documentation.

Changed

  • Make speech string matching scale to large rules/grammars.
  • Make jsgf.ext.Dictation expansions match correctly in most circumstances.
  • Allow rules to use optional only rule expansions.
  • Update docstrings in all Python modules.
  • Change internal matching method to implement for subclasses from _matches_internal to _make_matcher_element.

Deprecated

  • Add deprecation note for the Grammar.compile_grammar method.
  • Deprecate the ExpansionError and MatchError classes.

Fixed

  • Fix issue #12 and probably some other bugs where speech wouldn't match rules properly.
  • Fix __hash__ methods for the Dictation and AlternativeSet classes.

Removed

  • Remove support for matching ambiguous rule expansion because it is not worth the performance hit.

1.4.1 -- 2018-08-20

Added

  • Add ChildList list subclass for storing rule expansion children and updating parent-child relationships appropriately on list operations.

Changed

  • Change Literal.text attribute into a property with some validation.

Fixed

1.4.0 -- 2018-08-09

Added

  • Implement grammar, rule and expansion parsers.
  • Add setters for the BaseRef name property and Expansion children property.

Changed

  • Allow imported rule names to be used by NamedRuleRefs.

Fixed

  • Fix NamedRuleRefs for rule expansion functions and the Rule.dependencies property.

1.3.0 -- 2018-07-14

Added

  • Add methods/properties to the Rule and Grammar classes for JSGF tag support.
  • Add rule resolution for NamedRuleRef class.
  • Add method and property for checking expansion match values for each repetition.

Fixed

  • Fix various bugs with JSGF rule expansions.

1.2.3 -- 2018-06-02

Added

  • Add 'six' as a required package to support Python versions 2.x and 3.x.

Changed

  • Change add_rule methods of grammar classes to silently fail when adding rules that are already in grammars.

Fixed

  • Fix hash implementations and __str__ methods for rule classes.
  • Other minor fixes.

1.2.2 -- 2018-04-28

Added

  • Add Expansion.collect_leaves method.

Changed

  • Reset match data for unmatched branches of expansion trees.
  • Change Expansion leaf properties to also return RuleRefs.
  • Move some Literal class properties to the Expansion superclass.

1.2.1 -- 2018-04-27

Added

  • Add calculation caching to improve matching performance.
  • Add optional shallow parameter to Expansion functions like map_expansion.

Fixed

  • Fix bug with BaseRef/RuleRef comparison.
  • Fix bug in expand_dictation_expansion function.

1.2.0 -- 2018-04-09

Added

  • Add a few methods and properties to Expansion classes.
  • Add JointTreeContext class and find_expansion function.
  • Add __rep__ methods to base classes for convenience.

Fixed

  • Fix a bug where rules with mutiple RuleRefs wouldn't match.

1.1.1 -- 2018-03-26

First tagged release and start of proper versioning. Too many changes to list here, see the changes by following the link above.