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

Hans Hagen j.hagen at xs4all.nl
Wed Apr 3 13:30:51 CEST 2019


On 4/3/2019 10:56 AM, Henning Hraban Ramm wrote:
> Am 2019-04-02 um 18:53 schrieb Hans Hagen <j.hagen at xs4all.nl>:
> 
>> 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=?)
>>
> 
> Thank you – it’s not only a German habit, even if we pronounce it “folgende”, “f.” stems from Latin “folio”, and “ff.” is a duplicated abbreviation, as was usual in mediaeval Latin.
> So, this is at least used in English, German, Norwegian and Swedish, as far as I could find. In French they seem to use “sq.” and “sqq.” (sequens).
> 
> https://de.wiktionary.org/wiki/ff.
> https://en.wiktionary.org/wiki/ff.
> https://fr.wiktionary.org/wiki/sq.
> 
> I suggest the following setup options:
> 
> compress = no  —> don’t collapse (as now)
> compress = yes —> always use – (as now)
> 
> compresssymbols={\,f.,\,ff.} (or how can you setup a list?)
> compress = symbols —> use first symbol for one other page, second for more pages
> 	if there’s only one symbol, more than one sequential page should use – (like “yes”)
> 
> Is this feasible?

i'll add

\setuplabeltext % predefined
   [en]
   [following:singular=f.,
    following:plural=ff.]

\setupregister[index][compress=text]

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