Backrefs

Feb 25, 2018

- **NEW**: Add support for `Script_Extensions` Unicode properties (Python 3 only as Python 2, Unicode 5.2.0 does not define these). Can be accessed via `\p{scripts_extensions: kana}` or `\p{scx: kana}`.
- **NEW**: When defining scripts with just their name `\p{Kana}`, use `Script_Extensions` instead of `Scripts`. To get `Scripts` results, you must specify `\p{scripts: kana}` or `\p{sc: scripts}`.
- **NEW**: Add `Bidi_Paired_Bracket_Type` Unicode property (Python 3.4+ only).
- **NEW**: Add support for `IsBinary` for binary properties: `\p{IsAlphabetic}` == `\p{Alphabetic: Y}`.
- **FIX**: Tweaks/improvements to string iteration.

Feb 12, 2018

- **FIX**: Properly escape any problematic characters in Unicode tables.

- **FIX**: `bregex.compile` now supports additional keyword arguments for named lists like `bregex.compile_search` does.

- **NEW**: Start and end word boundary back references are now specified with `\m` and `\M` like Regex does. `\<` and `\>` have been removed from Regex.
- **FIX**: Escaped `\<` and `\>` are no longer processed as Re is known to escape these in versions less than Python 3.7.

Feb 9, 2018

- **FIX**: Process non raw string equivalent escaped Unicode on Python 2.7.
- **FIX**: Compiled objects should return the pattern string, not the pattern object via the property `pattern`.

Feb 8, 2018

- **FIX**: Formally enable Python 3.7 support.
- **FIX**: Tweak to Unicode wide character handling.