Is there a way in Kotlin to match a regex until some character without creating a substring? Like `f...

# announcements

[Vampire]

Is there a way in Kotlin to match a regex until some character without creating a substring?
Like find(input, 50) to search after character 50 but so that only until character 50 is tried to match.

And what is the difference between slice, substring and subSequence?

[edrd]

You can add it to the Regex: ^.{50}(your-match)

[Vampire]

That's not fitting the requirement

[Vampire]

For that I could just use find(input, 50)

[edrd]

Sorry, I think didn't understand the requirement then

[edrd]

I thought you wanted something that does not create a substring, and adding it to the Regex fulfills this requirement

[Vampire]

"lorem ipsum dolor sit amet" and I want the regex only matched against "lorem ipsum dolor"

[Vampire]

find(input, 50) also does not create a substring and does exactly the same as your suggestion

[Vampire]

But that would match against "sit amet" which is not what I want

[edrd]

Got it

[edrd]

I guess with Regex and without a substring there's no way

[edrd]

Actually, this may help: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Matcher.html#region(int,%20int)

[edrd]

If you are on Kotlin/JVM, of course...

[edrd]

Pattern.compile("your-pattern").matcher(stringToMatch).region(0, 50).find()

[Vampire]

Ah nice, didn't know that method, thanks, that will probably do if there is no Kotlin-specific way

[edrd]

I didn't know about it either, so we both learned something today 😁