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if not modules then modules = { } end modules ['back-pdf'] = {
version = 1.001,
comment = "companion to back-pdf.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
-- We hide the pdf table from users so that we can guarantee no interference with
-- the way we manage resources, info, etc. Users should use the \type {lpdf}
-- interface instead. If needed I will provide replacement functionality.
local setmetatableindex = table.setmetatableindex
interfaces.implement {
name = "setpdfcompression",
arguments = { "integer", "integer" },
actions = lpdf.setcompression,
}
do
local dummy = function() end
local report = logs.reporter("backend")
local function unavailable(t,k)
report("calling unavailable pdf.%s function",k)
t[k] = dummy
return dummy
end
updaters.register("backend.update",function()
--
-- For now we keep this for tikz. If really needed some more can be made
-- accessible but it has to happen in a controlled way then, for instance
-- by first loading or enabling some compatibility layer so that we can
-- trace possible interferences.
--
pdf = {
immediateobj = pdf.immediateobj
}
setmetatableindex(pdf,unavailable)
end)
end
backends.install("pdf")
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