[NTG-context] Is there a way to centrally add a list of indexed items to a sub category?

[NTG-context] Is there a way to centrally add a list of indexed items to a sub category?

[Joel via ntg-context]

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I have a document like this:

    \starttext
        \index{dogs}
        
        \index{cats}
        
        \index{flowers}
        
        \index{snails}
        
        \index{trees}
        
        \placeindex
        
    \stoptext
    
As I understand, if you use \index{animals+dogs}, it will place dogs as a sub-category of dogs.

Is there any way to control this centrally, for instance:

\addtosub[animals]{dogs, cats, snails}
\addtosub[plants]{flowers, trees}

Such a way would make it so \index{dogs} places an entry for "dog" under "d" and "animals --> dogs" under "a".
--Joel

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Re: [NTG-context] Is there a way to centrally add a list of indexed items to a sub category?

[Henning Hraban Ramm via ntg-context]

Am 15.05.23 um 03:37 schrieb Joel via ntg-context:
> 
> I have a document like this:
> 
>      \starttext
>          \index{dogs}
> 
>          \index{cats}
> 
>          \index{flowers}
> 
>          \index{snails}
> 
>          \index{trees}
> 
>          \placeindex
> 
>      \stoptext
> 
> As I understand, if you use \index{animals+dogs}, it will place dogs as 
> a sub-category of dogs.
> 
> Is there any way to control this centrally, for instance:
> 
> \addtosub[animals]{dogs, cats, snails}
> \addtosub[plants]{flowers, trees}
> 
> Such a way would make it so \index{dogs} places an entry for "dog" under 
> "d" and "animals --> dogs" under "a".

I’d suggest to cook your own macro, e.g. for a book with a lot of person 
index entries, I used a lookup table to unify different spellings or 
name changes (married, titles etc.) like this:

"""% environment:
\loadluafile[lookups] % Index lookups

\defineregister[Person][]
\defineprocessor[italics][style=italicface]
\define[1]\Passim{\emph{passim}}
\defineprocessor[passim][command=\Passim]

\define[1]\nPerson{%
   \expanded{\Person{\ctxlua{userdata.Lookup("#1")}}}%
}

\define[1]\TPerson{%
   \expanded{\Person[kursiv->]{\ctxlua{userdata.Lookup("#1")}}}%
}#1}
\define[1]\nCPerson{\expanded{\Person[italics->]{\ctxlua{userdata.Lookup("#1")}}}}%
\define[1]\TCPerson{\expanded{\Person[italics->]{\ctxlua{userdata.Lookup("#1")}}}#1}%
"""

"""lookups.lua:
userdata = userdata or { }

userdata.Lookups = {
…
   ["Pauline, geb. Fichtner Erdmannsdörfer"] = "Erdmannsdörfer, Pauline, 
geb. Fichtner",
   ["Pauline Erdmannsdörfer"] = "Erdmannsdörfer, Pauline, geb. Fichtner",
   ["Pauline Erdmannsdörfer-Fichtner"] = "Erdmannsdörfer, Pauline, geb. 
Fichtner",
…
}

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

In a similar way you could setup an \Animal macro to use a lookup table 
how the entry should get indexed.

Hraban


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Re: [NTG-context] Is there a way to centrally add a list of indexed items to a sub category?

[Hans Hagen via ntg-context]

On 5/15/2023 3:37 AM, Joel via ntg-context wrote:
> 
> I have a document like this:
> 
>      \starttext
>          \index{dogs}
> 
>          \index{cats}
> 
>          \index{flowers}
> 
>          \index{snails}
> 
>          \index{trees}
> 
>          \placeindex
> 
>      \stoptext
> 
> As I understand, if you use \index{animals+dogs}, it will place dogs as 
> a sub-category of dogs.
> 
> Is there any way to control this centrally, for instance:
> 
> \addtosub[animals]{dogs, cats, snails}
> \addtosub[plants]{flowers, trees}
> 
> Such a way would make it so \index{dogs} places an entry for "dog" under 
> "d" and "animals --> dogs" under "a".
\starttexdefinition protected IndexA#1#2
     \index{#2}
     \doloopoverlist {#1} {
         \index{##1+#2}
     }
\stoptexdefinition

\starttexdefinition tolerant protected IndexB[#1]#:#*#2
     \index{#2}
     \doloopoverlist {#1} {
         \index{##1+#2}
     }
\stoptexdefinition

\starttext
     a\IndexA{animals}{dogs}
     a\IndexA{animals}{cats}
     a\IndexA{plants}{flowers}
     a\IndexA{animals,small}{snails}
     a\IndexA{plants,huge}{trees}
     \page
     b\IndexB[animals]      {dogs}
     b\IndexB[animals]      {cats}
     b\IndexB[plants]       {flowers}
     b\IndexB[animals,small]{snails}
     b\IndexB[plants,huge]  {trees}
     \page
     c\IndexB{dogs}
     c\IndexB{cats}
     c\IndexB{flowers}
     c\IndexB{snails}
     c\IndexB{trees}
     \page
     \placeindex
\stoptext



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Re: [NTG-context] Is there a way to centrally add a list of indexed items to a sub category?

[Alan Braslau via ntg-context]

On Mon, 15 May 2023 09:40:22 +0200
Hans Hagen via ntg-context <ntg-context@ntg.nl> wrote:

> \starttexdefinition tolerant protected IndexB[#1]#:#*#2
>      \index{#2}
>      \doloopoverlist {#1} {
>          \index{##1+#2}
>      }
> \stoptexdefinition

Awesome!

However, I think that Joel was looking for a solution closer to what
Hraban suggested, creating automatic subcategories. I would do that
through a additional macros:

\starttexdefinition protected Animals#1
    \index{#1}
    \index{animals+#1}
    #1
)
\starttexdefinition protected Plants#1
    \index{#1}
    \index{plants+#1}
    #1
)
\Animals{dogs}
\Plants{trees}





I use as a general indexing macro:

\starttexdefinition tolerant protected Index[#1]#:#*#2
     \index[#1]{#2}
     #2
\stoptexdefinition

Alan
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Re: [NTG-context] Is there a way to centrally add a list of indexed items to a sub category?

[Alan Braslau via ntg-context]

On Mon, 15 May 2023 01:37:53 +0000 (UTC)
Joel via ntg-context <ntg-context@ntg.nl> wrote:

> Such a way would make it so \index{dogs} places an entry for "dog"
> under "d" and "animals --> dogs" under "a".

Might I suggest that an alternate way of handling this could be:

\seeindex{dogs}{animals+dogs}

with

\index{animals+dogs}


It's the author's choice, but this avoids redundant page entries and a very long \placeindex.

(Note that we recently extended \seeindex to handle the {...+...}
syntax for both arguments.)

Alan
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