Re: consistent index entries

[Wolfgang Schuster <wolfgang.schuster.lists@gmail.com>]

Henning Hraban Ramm schrieb am 01.08.2020 um 22:16:
> 
>> Am 01.08.2020 um 21:30 schrieb Wolfgang Schuster <wolfgang.schuster.lists@gmail.com>:
>>> \def\Ort#1{\index{\ctxlua{user.Lookup("#1")}}}
>>
>> You have to expand the \index argument:
>>
>> \define[1]\Ort{\expanded{\index{...}}}
> 
> Ah, I never know where to expand (tried \expanded\ctxlua).

\expanded needs a argument, i.e. \expanded{...}

> Now,
> 
> \def\TOrt#1{\expanded{\Ort{\ctxlua{userdata.Lookup("#1")}}}#1} % Loc + Text
> \defineprocessor[kursiv][style=italicface]
> \def\TFOrt#1{\expanded{\Ort[kursiv->]{\ctxlua{userdata.Lookup("#1")}}}#1} % Loc in Footnote + Text
> 
> works. :)
> 
> (I always define \TIndex to avoid doubling, e.g. Hamburg\index{Hamburg}.)
> 
> 
>> When you use formatting commands etc. you have to use the optional argument for sorting.
> 
> I don’t understand.
> 
> \Ort[kursiv->]{Hamburg} works.

You mentioned only \index{\emph{...}} in your mail ...

>> You can avoid a few problems when you move the \index command to Lua and use context.index or you use a pure TeX solution.
>>
>> %%%% begin lua example
>>
>> function userdata.index(name)
>>     local indexentry = userdata.lookup[name] or name
>>     context.index(indexentry)
>> end
> 
> That’s nice, but since I use different registers, I’d need to define that function for each. Since I also use several shortcuts (e.g. \TOrt, \TFOrt, \TPerson, \TFPerson) I would multiply the effort on the Lua side.
> I find my TeX definitions (like above) shorter, where I can use the same Lua function for each.
> With your code I could at least shorten it to:
> 
> function userdata.Lookup(name)
>     context(userdata.Lookups[name] or name)
> end
> 
>> %%%% begin tex example
> 
> Oh, this is also nice. But isn’t the Lua version faster? (I have >600 person entries and a few hundred locations).


Hard to say without testing but the difference can be ignored because 
\index itself is what take processing time.

Wolfgang
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