v1.2.0

• Added: Dedicated scope for identifying empty capturing groups
• Added: Grammar for POSIX.2 (IEEE Std 1003.2) “extended” regexes
• Added: Highlighting of quoted/verbatim characters inside \Q…\E
• Added: Extended regexp highlighting inside (?x: …) groups
• Added: Support for codepoint sequences (Oniguruma 6.9.5+)
• Added: Support for trailing whitespace in \x{… } and \o{… }
• Fixed: Typo in .source.regexp's editor.commentEnd setting
• Fixed: Typo in (?'named') capturing group pattern