Positive lookbehinds not working

[john5634]

Hello!

Trying to use positive lookbehinds with XRegExp and it does not seem to work.

Is this known?

TRYING TO MATCH: "Empire Burlesque"

WITH:

REGEX:
(?<=<TITLE>)(.*)(?=</TITLE>)

STRING:

<TITLE>Empire Burlesque</TITLE> Bob Dylan USA Columbia 10.90 1985

[slevithan]

What browser are you testing it with? Lookbehind should work if and only if you're using a browser / JavaScript runtime that supports regex lookbehind natively.

[john5634]

We are using firefox 67. Which does not support Lookbehinds. We were hoping that XRegExp would enable them?

[slevithan]

No, lookbehind is not something XRegExp provides on its own.

For your regex and example string, it seems simple enough to use a regex like this instead:

/<TITLE>(.*?)</TITLE>/

Then just reference the value in capturing group 1, rather than the whole match.