v0.12.0

Breaking changes

• Added support for the v flag.
  • This significantly changes the interfaces and types around the parser.
  • There are now 2 never classes JS.UnicodeSet and JS.StringSet to represent a Unicode set with strings.
  • Much more.
• combineTransformers has been deprecated. Use CombinedTransformer instead.

Added

• JS.parseCharSet and JS.parseUnicodeSet have been added to easily parse a character AST into a CharSet or UnicodeSet.
• JS.toLiteral now supports the v flag.
• Added CharSet#fromCharacter to easily create a character set from a single character.
• Allow string argument for JS.Parser.fromLiteral.
• Added CombinedTransformer class to combine multiple transformers into one.
• Added transform events which allows the caller to observe the transformation.
• Added Transformers.makeGreedy to make quantifiers greedy whenever possible.
• Added Transformers.simplify as a stable way to get the best combination of transformers to simplify a regex.

Changed

• Transformers can now have an optional name.
• Major internal improvements to some transformers, especially applyAssertions.

Fixed

• isEmpty has been fixed. Transformers.moveUpEmpty should now work correctly.
• Transformers are now guaranteed to be called with the correct this argument.

v0.11.0...v0.12.0