&&
CharClass
Intersection
*
Quantifiable
*+
Quantifiable
*?
Quantifiable
+
Quantifiable
++
Quantifiable
+?
Quantifiable
?
Quantifiable
?+
Quantifiable
??
Quantifiable
||
Alternation
Alternative
CharClass
MultiChar
SingleChar
Union
~~
CompoundRaw
Literal
Raw
Sequence
Sequenceable