Extract text using regular expression

Question

I'm trying to extract a case id from the string, Could someone help me with this

https://looney-tunes/review/case/CAAAAAAAAR-hw7QEAAAAMf___-A?caseGroup=12&queueId=52

I want to extract the portion after case/ and before '?'in the link. They're 27 characters in length.

Thanks in advance

Answer 1

import re
s='https://looney-tunes/review/case/CAAAAAAAAR-hw7QEAAAAMf___-A?caseGroup=12&queueId=52'
x=re.search("(?s)(?<=case/).*?(?=\\?)",s)

---

<re.Match object; span=(33, 60), match='CAAAAAAAAR-hw7QEAAAAMf___-A'>

In general, If you want a substring between two string Use : (?s)(?<=str1).*?(?=str2)

as this was our str2 -> ?, had to escape it using \\