[luatex] callbacks in luatex 0.89

[Philipp Gesang]

···<date: 2016-02-11, Thursday>···<from: Hans Hagen>···
> return function(specification)
>      local t = { }
>      for k, v in pairs(specification.features.normal) do

With Plain from Context 2016.02.08 15:35, features.normal contains:

    table={
      ["0x41-0x5A+0x30-0x39+0x21"]=true,
      ["1"]="61",
      ["2"]="62",
    }

>          local n = tonumber(k)
>          if n then
>              t[n] = v
>          end
>      end

At this point, t = { "61", "62" }.

>      for k, v in ipairs(t) do
>          local name, rest = string.match(v,"^(.-):(.*)$")

This matches no entry -> only the first font is ever used. It’s
obvious what the code is intended to accomplish but it won’t work
as-is with the spec parser.

Philipp

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