CODEWITHSUNDEEP
.netregex
Joon
Joon

Reputation: 2147

.NET Regex to back capture only the number from a matching group

I need to configure an app that takes a regex as a parameter. It is a .NET application, and uses the default .NET regex engine.

In the app, there is a string that looks either like this:

blah blah blah 123-123PQ

or this:

blah blah blah 456456ZR

I need the 123123 or the 465456 without the rest of the string, in a single named capture group

I have gotten this far:

(\b(?<number>\d+(?:-\d*)?)PQ|(?<number>\d+(?:\d*)?)ZR\b)

This captures either the first set of numbers or the second, but in the first format the result still has the "-" character in it.

My question: How do I do a backreference and grab only the numeric portion from the capture group?

Upvotes: 0

Views: 48

Answers (1)

antiduh
antiduh

Reputation: 12427

I do not think this is possible - here's a question that seems to be exactly the same thing you're asking for:

Regex Pattern Matching Concatenation

Upvotes: 2

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