How to remove strings which don't contain any number using (regex update)?

Question

I have already a regex (?:[a-zA-Z\d]+(?:[/][a-zA-Z\d]+)+) which matches correctly:

cb/09/06233/full 13/02513/MAJOR ADA/333

but also matches incorrectly

industrial/warehouse

How can I update my regex to exclude phrases without numbers?

I've tried (?=\d) to add somewhere inside but no effect.

You are close. Try adding (?=\S*\d) Demo

Pushpesh Kumar Rajwanshi
– Pushpesh Kumar Rajwanshi

2019-03-27 12:32:50 +00:00
Commented Mar 27, 2019 at 12:32 — Pushpesh Kumar Rajwanshi
– Pushpesh Kumar Rajwanshi, Commented Mar 27, 2019 at 12:32

The fourth bird · Accepted Answer · 2019-03-27 12:59:33Z

2

You could use a positive lookahead (?=[^\d\s]*\d) to assert what is on the right is not a whitespace char or a digit.

For that you could use a character class [^\d\s]* to match not a digit or a whitespace char and a quantifier to repeat that 0+ times. Then match a digit \d.

(?=[^\d\s]*\d)(?:[a-zA-Z\d]+(?:/[a-zA-Z\d]+)+)

Regex demo

edited Mar 27, 2019 at 12:59

answered Mar 27, 2019 at 12:36

The fourth bird

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3 Comments

Peter.k Over a year ago

It's good but why it doesn't match fully ada/333 while matches ADA/333? I know it's not in above set.

Peter.k Over a year ago

Found a bug. Probably you forgot about slash at \d: (?=[^\d\s]*\d)

The fourth bird Over a year ago

@Peter.k You are right, I forgot to escape the \d. Updated accordingly.

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