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 ` lt name gt Carla lt name gt ` to finally get lt name gt Carla lt name gt and lt name gt Bob lt name gt went to school Is there an easy way in Kotlin to achieve this without tracking the lengths that I have already inserted

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

02/27/2019, 10:00 AM

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

halirutan

02/27/2019, 11:31 AM

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

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

02/27/2019, 1:15 PM

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

02/27/2019, 1:32 PM

@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.

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