I would appreciate a clue about regex variant forms.
In one text editor I use, removing bracketed footnotes like  and  from a text works well by finding with either of these expressions —
— but in another editor, only the first works, not the second.Code:\[[0-9]*\] \[\d*\]
These are different implementations? Is there some simple guide to knowing which forms to use in different settings, other than trial and error?