Re: [NTG-context] Index items (additional question)

19 Apr 2015

      On 19 Apr 2015, at 11:55 , Hans Hagen  wrote
...
On 4/19/2015 9:47 AM, Robert Blackstone wrote:
...
On 16 Apr 2015, at 15:38 , Hans Hagen  gave me the following:
...
\startluacode
document.indexentries = {
        ["rule"]          = [[Rule(s)]],
        ["ruleimperfect"] = [[+ \quote{imperfect to perfect, from}]],
        ["galilei"]       = [[Galilei, Vincenzo]],
    }
function document.getindexentry(n)
        context("\\index[%s]{%s}",n,document.indexentries[n] or ("<" ..
n .. ">"))
    end
\stopluacode
\unexpanded\def\InEn[#1]%
  {\ctxlua{document.getindexentry("#1")}}
\starttext
That this rule
\InEn[rule]
\InEn[ruleimperfect] was not applied by everybody is for example shown
in {\em Fronimo}%
\InEn[galilei]
etc etc
This code works beautifully in this way, with only a few index entries  at the top of the file, before \starttext.
But how can I deal with the thousand or more index items in my project, which I have collected in four separate dedicated files with indexentries, like the three shown in the example-code.
I have really no idea  what else should be in these files,  what sort of name they should have, in particular extension,  and how and where I can input them.
I use TeXShop as my texteditor but that is probably not relevant here.
Can you give me some guidance, please?
\startluacode
document.indexentries = {
        ["rule"]          = [[Rule(s)]],
        ["ruleimperfect"] = [[+ \quote{imperfect to perfect, from}]],
        ["galilei"]       = [[Galilei, Vincenzo]],
    }
function document.loadindexentries(filename)
        local fullname = resolvers.findfile(filename)
        if fullname ~= "" then
            local data = io.loaddata(fullname)
            for a, b  in string.gmatch(data,"%s*(%S+)%s+([^\n\r]+)") do
                document.indexentries[a] = b
            end
        end
    end
function document.getindexentry(n)
        local ie = document.indexentries[n]
        if not ie then
            logs.report("index","missing entry %a",n)
        end
        context("\\index[%s]{%s}",n,ie or ("<" .. n .. ">"))
    end
\stopluacode
\unexpanded\def\LoadInEn[#1]{\ctxlua{document.loadindexentries("#1")}}
\unexpanded\def\InEn    [#1]{\ctxlua{document.getindexentry("#1")}}
\LoadInEn[whatever.txt]
\starttext
That this rule
\InEn[rule]
\InEn[ruleimperfect] was not applied by everybody is for example shown 
in {\em Fronimo}%
\InEn[galilei]
\InEn[unknown]
etc etc
\InEn[GalileiFronimo]
\InEn[Cadence]
\InEn[CadenceP]
\InEn[PlagalCad]
\index[Fronimo]{{\em Fronimo} (Galilei)} (1584), Vincenzo Galileo's 
treatise on lute playing and the intabulation%
\index[Intabulation]{intabulation}  of vocal music.
\page
whatever.txt:
GalileiFronimo +{\em Fronimo}
Cadence        cadence(s)
CadenceP       + plagal
PlagalCad      plagal cadence
Hi Hans,

Thank you for your reply.
It took me a while to make your code operational in the way I need it.
For the new example you gave is still an "integral file". My project, like most book-projects, I guess, is modular with a master file Project.tex, into which everything else, setups, .bbl's, front- and backmatter, the various chapters are input. Though strictly speaking it would not be impossible to add some 1000 lines of index entries before \startproject, it would not be especially handy, and I cannot believe that it would be the proper ConTeXt-way to do it.

I found that when I split your code, transferred the top part to a new file, which I named "IndexItems", and input that into the other half, the text proper, it works. But when I add another file with indexentries, for instance "indexitemsnames", then only one of them, the one at the top is used. 
So it seems that the whole collection of index items must be in one file.
Is that the only possibility or are there ways to enable the use of several collections of index items?

Best regards, 
Robert