How to detect strings within brackets

[helicoptur]

I need to know how to detect strings within custom brackets of larger strings.
In case I'm being confusing (which is probably the case) I mean something like this:

[scratchblocks]
(find first text inside [(] [)] in [hello (world)]::operators)
[/scratchblocks]

I tried using the [scratchblocks] split [] by [ ]::operators reporter [/scratchblocks], but it got too confusing and complicated. Could someone help me?

[bh]

Are they nested? hello (wo(rl)d)?

[helicoptur]

I was thinking if they were nested, it would ignore any of the brackets inside. Like
[scratchblocks]
find first text inside [(] [)] in [hello(wo(rl)d)]::operators reporter
[/scratchblocks]
would report wo(rl)d.

[programmer_user]

https://snap.berkeley.edu/snap/snap.html#present:Username=programmer_user&ProjectName=inside%20parens

[18001767679]

https://repl.it/@18001767679/expect#main.py
The parseValue function is used to parse a JSON value.Use strings.("foo\"bar\\\"garply")
@helicoptur I would interpret that in side the brackets "wo(rl" because the ) closes the open bracket outside.
(Shhhhh i don't want this to spoil the 2nd day challenge for them)

[helicoptur]

Thank you so much!