CODEWITHSUNDEEP
scala
goo
goo

Reputation: 2280

Scala: Removing first 2 directories from a String

I have a string that looks like this "./path1/path2/path3/path4/etc/file"

I would like to just remove the first 2 paths and return a string that looks like this:

"path3/path4/etc/file"

How can I do this using Scala?

Upvotes: 1

Views: 559

Answers (2)

Chris Martin
Chris Martin

Reputation: 30756

If you're dealing with filesystem paths, it might be wise to use Java's Path class that's designed for this sort of thing.

scala> import java.nio.file.Paths
import java.nio.file.Paths

scala> val p = Paths.get("./path1/path2/path3/path4/etc/file")
p: java.nio.file.Path = ./path1/path2/path3/path4/etc/file

scala> p.subpath(3, p.getNameCount())
res0: java.nio.file.Path = path3/path4/etc/file

Upvotes: 7

Norbert Radyk
Norbert Radyk

Reputation: 2618

How about simple: s.split("/").drop(3).mkString("/")

In this statement firstly you split path by /, next remove first 3 tokens (as first one will be . in your case) and finally merge tokens together to create new path.

Upvotes: 10

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