Henning Hraban Ramm schrieb am 01.08.2020 um 20:49:
Am 01.08.2020 um 13:22 schrieb Henning Hraban Ramm <te...@fiee.net>:
Hi,
besides the CG journal I’m working on a scientific biography with huge person
and locality indexes (named Person and Locality for the examples).
In many cases, the author wants additional information in the index, e.g.
\Locality{Altona (Hamburg)}
\Locality{Breslau (pol. Wrocław)}
or
\Person{Arends, Katharina (née Schoemaker)}
\Person{Wilhelm II. (Kaiser)}
Now, I need that consistent and I don’t want to type these complicated entries
every time.
I’m looking for a good way to handle this – maybe a lookup table in Lua, so that
\LookupPerson{Willy II}
would call a Lua function that returns
\Person{Wilhelm II. (Kaiser)}
?
Or is there already something in place that I overlooked, like
\OverwriteIndexEntry{Hraban}{Ramm, Henning Hraban}
?
I came up with:
\startluacode
user.Lookups = {
["Albano"] = "Albano (Provinz Rom)",
["Altona"] = "Altona (Hamburg)",
["Aurich"] = "Aurich (Ostfriesland)"
}
function user.Lookup(Name)
local Res = user.Lookups[Name]
if Res then
return context(Res)
else
return context(Name)
end
end
\stopluacode
\def\Ort#1{\index{\ctxlua{user.Lookup("#1")}}}
You have to expand the \index argument:
\define[1]\Ort{\expanded{\index{...}}}
\starttext
\Ort{Albano}
\Ort{Altona}
\Ort{Aurich}
\strut\page
\placeindex
\stoptext
The lookup works so far, but all the entries get sorted unter C (because of
\ctxlua).
I remember I had the same problem with other macros (like \index{\emph{bla}}),
but can’t find a solution in my usual sources.
When you use formatting commands etc. you have to use the optional
argument for sorting.
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
\startluacode
userdata = userdata or { }
userdata.lookup = {
["Albano"] = "Albano (Provinz Rom)",
-- ["Altona"] = "Altona (Hamburg)",
["Aurich"] = "Aurich (Ostfriesland)"
}
function userdata.index(name)
local indexentry = userdata.lookup[name] or name
context.index(indexentry)
end
\stopluacode
\define[1]\Ort{\ctxlua{userdata.index("#1")}}
\starttext
\Ort{Albano}
\Ort{Altona}
\Ort{Aurich}
\dontleavehmode\page
\placeindex
\stoptext
%%%% end lua example
%%%% begin tex example
\setvariables
[index]
[Albano={Albano (Provinz Rom)},
%Altona={Altona (Hamburg)},
Aurich={Aurich (Ostfriesland)}]
\define[1]\Ort
{\doifelsevariable{index}{#1}
{\expanded{\index{\getvariable{index}{#1}}}}
{\index{#1}}}
\starttext
\Ort{Albano}
\Ort{Altona}
\Ort{Aurich}
\dontleavehmode\page
\placeindex
\stoptext
%%%% end tex example
Wolfgang
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