if not modules then modules = { } end modules ['font-lig'] = {
    version   = 1.001,
    comment   = "companion to font-ini.mkiv",
    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
    copyright = "PRAGMA ADE / ConTeXt Development Team",
    license   = "see context related readme files",
}

-- We keep this for compatibility reasons and demonstration purposes. We delay
-- definition of the data table in order to save some memory.

-- data['c'] = { 'a', 'b' }
-- data['d'] = { 'c', 'c' }

local next = next
local setmetatableindex = table.setmetatableindex

local data = { }

setmetatableindex(data,function(t,k)
    for first, seconds in next, characters.graphemes do
        for second, combined in next, seconds do
            data[combined] = { first, second }
        end
    end
    setmetatableindex(data)
    return t[k]
end)

local feature = {
    name    = "collapse",
    type    = "ligature",
    prepend = true,
    dataset = {
        { data = data }, -- twice ?
        { data = data },
    }
}

-----.handlers.afm.addfeature(feature)
fonts.handlers.otf.addfeature(feature)