[NTG-context] Is there a short-cut to adding sub-categories for index entries?

[NTG-context] Is there a short-cut to adding sub-categories for index entries?

[Joel via ntg-context]

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I have a document with thousands of index entries. Here’s a samplecode:




\starttext

 Some people livedin \index{cliff-dwelling}cliff-dwellings, while others lived in\index{lean-to}lean-tos.




\placeindex

\stoptext




This produces anindex like this:







c

cliff-dwelling 1







 l

 lean-to 1




I’d like to createan index with much more sub-categories to find the same entries, forinstance, a category of “dwellings”:




c

cliff-dwelling 1







d

dwellings

 cliff-dwelling 1

 lean-to 1




 l

 lean-to 1




As I’m aware, theway to code this is as follows:

\starttext

 Some people livedin\index{cliff-dwelling}\index{dwellings+cliff-dwelling}cliff-dwellings,while others lived in\index{lean-to}\index{dwellings+lean-to}lean-tos.




\placeindex

\stoptext



I’m wondering ifthere is a short-cut means to set this up, such that if I can tellthe document that any time it sees “cliff-dwellings” in an index,it will also add its page numbers to under “dwellings+cliff-dwelling”? In other words, is there an easierway to add these categories, then to go through the entire documentand mark them? I already have a list of all the words. 
For instance, in my above code, I must find every \index{cliff-dwelling} entry and add a \index{dwellings+cliff-dwelling} next to it...which would take hundreds of hours if I did that for every word. Is there a quicker way to tell it always also add it under "dwellings" too?




--Joel


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[NTG-context] Re: Is there a short-cut to adding sub-categories for index entries?

[Henning Hraban Ramm]

Am 25.08.24 um 15:38 schrieb Joel via ntg-context:
> I have a document with thousands of index entries. Here’s a sample code:
> Some people lived in 
> \index{cliff-dwelling}\index{dwellings+cliff-dwelling}cliff-dwellings, 
> while others lived in \index{lean-to}\index{dwellings+lean-to}lean-tos.

> 
> I’m wondering if there is a short-cut means to set this up, such that if 
> I can tell the document that any time it sees “cliff-dwellings” in an 
> index, it will also add its page numbers to under 
> “dwellings+cliff-dwelling”? In other words, is there an easier way to 
> add these categories, then to go through the entire document and mark 
> them? I already have a list of all the words.
> 
> For instance, in my above code, I must find every \index{cliff-dwelling} 
> entry and add a \index{dwellings+cliff-dwelling} next to it...which 
> would take hundreds of hours if I did that for every word. Is there a 
> quicker way to tell it always also add it under "dwellings" too?

If it’s just a few instances, define a macro:

\define[1]\DwIndex{\index{#1}\index{dwellings+#1}#1}

For a list of words, a lookup table and a Lua function make sense.

With a comparable problem, normalizing location names, I used this:

-- lookups.lua
userdata = userdata or { }

userdata.Mapping = {
   ["Albano"] = "Albano (Provinz Rom)",
   ["Altona"] = "Altona (Hamburg)",
   ["Aurich"] = "Aurich (Ostfriesland)",
-- …
}

function userdata.Lookup(name)
   context(userdata.Mapping[name] or name)
end


%%% environment

\loadluafile[lookups.lua]
\defineregister[Location][]
\define[1]\LocIndex{\expanded{\Location{%
   \ctxlua{userdata.Lookup("#1")}}}}


Hraban
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