Conditional qualifiers

I found needing something like this for clarity:

(?=(?<qualifiers>(int|char)(?{areweinfilescope}*+|++)))\g{qualifiers}

This way if are we in file scope the quantifiers will be captured optional
and then the backreference will work as expected too.

Currently this gives the following error:

Quantifier follows nothing in regex;


Thus I don't think any backwards compatibility will be broken.

Thanks for the attention - hope you find my suggestion somewhat captivating.

Alexander Nikolov

• Conditional qualifiers by sasho648
• Re: Conditional qualifiers by sasho648