Re^3: How do I avoid double substitution when replacing many patterns?

[japhy]

in reply to Re^2: How do I avoid double substitution when replacing many patterns?
in thread How do I avoid double substitution when replacing many patterns?

You could change

(?:
  |
  ( \( )
)

to

(
  \(
)?

... unless you get queasy when you see quantifiers placed on capturing groups.

[diotalevi]

I thought about it but decided I wasn't sure whether that would work correctly with the later conditional. If it does, great.