# [NTG-context] index "compress" option / collapsing of page numbers

Hans Hagen j.hagen at xs4all.nl
Tue Apr 2 18:53:27 CEST 2019

```On 4/2/2019 11:54 AM, Henning Hraban Ramm wrote:
> Ahoi,
>
> with \setupregister[compress=yes], index entries 1,2,3,4 become 1–4. That’s great.
>
> But (at least in German publications) it’s usual that 1,2 becomes 1f. and 1,2,3 becomes 1ff.
>
> Is it possible to configure it that way?
it should not be too hard to program but, it being german problem:

- you have to come up with an example
- wolfgang has to come up with a proper keyword (compress=?)

Hans

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