PPro Extendscript & Regex with variables

[BrianDavison]

Basically, I'm trying to figure out how to search through a string and find all instances of certain strings that take the form of a prefix, followed by 6 digits, and then a suffix. The prefix and suffix won't always be the same. The following works in standard javascript, but line 4 gives me a syntax error when I run in Ppro.

var newNameStart = 'AAA';
var newNameEnd = 'ZZZ';
var replacer = 'REPLACED';
const regexFullText = new RegExp(`${newNameStart}\\d{6}${newNameEnd}`);
var testString = "XXXXXAAA658565ZZZXXXXXX";
var replacedString = testString.replace(regexFullText, replacer);
alert (replacedString);

This should output XXXXXREPLACEDXXXXXX.

Any ideas how to fix my regex to work with extendscript, or another way entirely to go about this? Thanks!

[Bruce Bullis]

Here's PProPanel's use of RegExp; does this snippet work, locally, for you?

https://github.com/Adobe-CEP/Samples/blob/5490c33ac8355ba394c693deb10414553b0a5685/PProPanel/jsx/PPR...

[BrianDavison]

Yep, that works for me. and, replacing line 4 in my code with 

const regexFullText = new RegExp(/|[0-9]{6}/);

works insomuch as it finds the 6 digits in the middle and returns XXXXXAAAREPLACEDZZZXXXXXX.. I just can't seem to figure out how to include those variables that define the prefix and suffix of the 6 digits.

[Bruce Bullis · Accepted solution]

That's beyond my "PPro ExtendScript API" ken, but this page seems helpful: 

https://eloquentjavascript.net/09_regexp.html