How to write a generic Regex for the case below:

Question

So I have a scenario where I need to extract out all numbers from this string, now the problem that I am encountering is that there could be white-spaces between the commas or the actual number themselves. How can I write a generic regex to extract out only numbers. My current scenario looks like:

Test strings:

<classifier id="box-geometry" value="476,736,703,997" />
<classifier id="box-geometry" value="476,736,703, 997" />
<classifier id="box-geometry" value="476, 736, 703, 997" />

Attempted regex: value="(\d+),(\d+),(\d+),(\d+)"

Example: https://regex101.com/r/se0dwk/1/

As you can see, only the first string matches for all the numbers in their respective capturing groups.

Any help would be appreciated.

Thanks!

Just add optional space before the digit: `\s*(\d+)` – Toto Apr 18 '20 at 12:34 — Toto, Apr 18 '20 at 12:34

score 2 · Accepted Answer · answered Apr 18 '20 at 12:34

2

Your regex pattern is missing optional whitespace. Try including that:

value="(\d+),\s*(\d+),\s*(\d+),\s*(\d+)"

Check the demo below.

Demo

answered Apr 18 '20 at 12:34

Tim Biegeleisen

502,043
27
286
360

Thanks a tonne. The optional part was missing and I was not able to figure that out. – Rahul Sharma Apr 18 '20 at 12:35
Have to wait for 10 minutes more before I can accept this answer. Some kind of a constraint enforced by S.O – Rahul Sharma Apr 18 '20 at 12:36

How to write a generic Regex for the case below:

1 Answers1

Demo