C#•2y ago

regex help [Answered]

So I made a regex with little help of copilot, it looks like this:

^
(?<source>[0-7],[0-7])\s?
(?<destination>[0-7],[0-7])\s?
(?<capture>[0-7],[0-7])?
$

^
(?<source>[0-7],[0-7])\s?
(?<destination>[0-7],[0-7])\s?
(?<capture>[0-7],[0-7])?
$

It should match strings like this: "n,n > n,n x n,n" or like this: "n,n > n,n", where n is number between 0 and 7 (spaces between are optional) However when I test it here https://regex101.com/r/MMnQql/1 I get no matches The question is why? Can somebody help me?

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9 Replies

ZacharyPatten•2y ago

I would recommend you make a unit test and then post the unit test here this kind of topic lends itself to test-driven-development (TDD)

Yawnder•2y ago

You don't have any notion of <, > or x in your regex.

Sernik•2y ago

I am currently making a refactoring in my project and i have a lot of errors so i cant run my tests now

amio•2y ago

Dialect issue? Does that site support .NET flavor regex? oh, yes it does. If it's turned on

Yawnder•2y ago

^(?<source>[0-7],[0-7])\s?>\s?(?<destination>[0-7],[0-7])\s?(?:x\s?(?<capture>[0-7],[0-7]))?$ Feels like it has been added relatively recently.

Sernik•2y ago

oh thanks! totally forgot about that!

Yawnder•2y ago

You're welcome

Jayy•2y ago

this can be closed i assume

Accord•2y ago

✅ This post has been marked as answered!

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regex help [Answered]