Variables not detected when followed by end of collection or dictionary

[fflaten]

Variables ($b below) followed by either a right paranthese or right curly brace are not detected

Suggestion:

1. Trim ), } and ] here

2. Or update regex from \S+ to valid char sets defined here in the last two groups ($scope:variable and $variable):
   Lu - UppercaseLetter
   Ll - LowercaseLetter
   Lt - TitlecaseLetter
   Lm - ModifierLetter
   Lo - OtherLetter
   Nd - DecimalDigitNumber