If have a string and a number of character ranges ...

# getting-started

[halirutan]

If have a string and a number of character ranges and I want to replace each range with inside the string with a different one which doesn't have the same length. So, e.g. if I have "Carla and Bob went to school" and I want to replace the ranges of the names with e.g. <name>Carla</name> to finally get "<name>Carla</name> and <name>Bob</name> went to school".
Is there an easy way in Kotlin to achieve this without tracking the lengths that I have already inserted?

[diesieben07]

The input must be the ranges? Or do you actually have a list of words you want to replace?

[halirutan]

No, the input are character-ranges the map into the original string.

[halirutan]

I can implement it manually by replacing one after another and keeping track of the additionally inserted characters, but I thought maybe this is something someone has already solved in a better way.

[Pavlo Liapota]

If you don’t want to keep track of number of inserted characters then just start replacing from the end of the string.
Or I would recommend to create a StringBuilder and append part by part while using input ranges on original string.

[halirutan]

@Pavlo Liapota Yep, good idea. My hope was that something like String.replaceRange(range: IntRange, replacement: CharSequence) for several ranges exists which does the job. I'm going to follow your advice.