[NTG-context] force index entries without page number

[Wolfgang Schuster]

Henning Hraban Ramm schrieb am 03.09.2020 um 10:17:
> Hi,
> 
> I’d like to have an (person) index entry like
> 
> Ramm, Hraban   passim
> 
> i.e. without actual page number.
> How can I force that?
> 
> I also need to be able to refer to it like
> \seeindex{Hraban}{Ramm, Hraban)


You can use this when the entry appears only once which replaces the 
page number with "passim".

\define[1]\Passim
   {passim}

\defineprocessor [passim] [command=\Passim]

\starttext

xxx\index{First}

yyy\index[passim->]{Second}

zzz\seeindex{Third}{Second}

\placeindex

\stoptext

Wolfgang