Allow capturing groups replacement in replaceStrings.js

[Jordinateur]

Hi

This adjustement aims to let the replacement string make use of the capturing group in the regex.

In the version 4, replace strings transformers allows us to replace (1) by ⁽¹⁾. Which is not the case in the version 5, i see it as a regression because i personnally used it in that way but maybe it was intended.

In my PR choosed to detect if the replacement string contains a capturing group reference in order to not have the overload of regex replacement if it's not wanted.

Thank for your time and this project !

[cossssmin]

Hey thanks for this, could you please provide some usage examples for it that (currently) no longer work in v5?

[Jordinateur]

Sure, in my mails, i wrap with <sup> text with this pattern (x).

I use the Maizzle API, just like this :

const html = await replaceStrings('<p>(1)</p>', {'(\\(\\d\\))': '<sup>$1</sup>'})

In V4, html was

 <p><sup>(1)</sup></p>

And in V5 html is

 <p><sup>$1</sup></p>

I also use this concept in order to add \  to wrap words inside french quotes like this : « Hi », and some other things on the same principle.

[cossssmin]

Cool, can you please also add a test for this case in test/transformers.test.js? Make sure to pull first, had to fix some linting errors.

It's this test:

I'll take care of the types and docs 👍

[cossssmin]

Sweet, thanks!

[Jordinateur]

Done!

And sorry for the linting, i didn't checked.