Re: How to sort in Lua using locale?

[Hans Hagen <pragma@wxs.nl>]

On 12-7-2010 12:30, Mojca Miklavec wrote:
> Hello,
>
> I would like to create a document using some functionality that is
> pretty close to creating an index, but the built-in index creation
> code doesn't suffice. My main question is: how do I sort strings using
> the built-in sorting rules for the current language?

\startluacode
document.whatever =  { names = { } }

function document.whatever.sortnames()
     local names = document.whatever.names
     local split = sorters.splitters.utf
     for i=1,#names do
         local name = names[i]
         name.split = {
             split(name.last),
             split(name.first),
         }
     end
     sorters.sort(names, sorters.comparers.basic)
end

function document.whatever.flushnames()
     local names = document.whatever.names
     local previous = false
     for i=1,#names do
         local name = names[i]
         local letter, current = sorters.firstofsplit(name)
         if previous ~= current then
             previous = current
             context.section(letter)
         end
         context.person(name.last,name.first)
     end
end

document.whatever.names = {
	{ first = "Hans",    last = "Hagen" },
	{ first = "Hartmut", last = "Henkel" },
	{ first = "Taco",    last = "Hoekwater" },
	{ first = "Caron",   last = "Haček" },
	{ first = "Ančka",   last = "Car" },
	{ first = "Ana",     last = "Car" },
	{ first = "Anita",   last = "Car" },
	{ first = "Matija",  last = "Čop" },
}

sorters.setlanguage("sl")
document.whatever.sortnames()
document.whatever.flushnames()
\stopluacode

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                                           Hans Hagen | PRAGMA ADE
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