Home/ Questions/Q 8780207
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-13T19:59:03+00:00

What should be the regular expression to match a repetitive pattern like: AA12/AA/12/BC A/BC/CD/8

  • 0

What should be the regular expression to match a repetitive pattern like:

AA12/AA/12/BC
A/BC/CD/8
A1/1/X/7

Where the first character must be an alphabet, followed by any number of alphanumeric character, followed by the pattern “/X” repeated one or more times where X is alphanumeric character or multiple alphanumeric characters, and at least one repetition should contain a digit.

Valid patterns:

A/B/C/D/1
A/1234/XYSX
PQ123/1
AB/CD1/PQ

Invalid Patterns:

12/AB/34
AB/CD/XY
AB/CD

So far I have come up with : 

[A-Za-z]\w*(/\w*[0-9]\w*)+

Which basically says that the later repetitive part should contain a digit, which is not correct as it is fine if only one repetitive part contains a digit..
Can any body help please?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Though certainly not the most beautiful solution, here is one possibility:

    [A-Za-z]\w*(/\w+)*(/\w*[0-9]\w*)+(/\w+)*

    Note that I added in two instances of (/\w+)*. Basically I’m just adding in “there can be more occurrences of slash-alphanum that don’t require a digit”.

    • 0