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if not modules then modules = { } end modules ['back-ini'] = {
version = 1.001,
comment = "companion to back-ini.tex",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
backends = backends or { }
local function nothing() return nil end
backends.nodeinjections = {
rgbcolor = nothing,
cmykcolor = nothing,
graycolor = nothing,
spotcolor = nothing,
transparency = nothing,
overprint = nothing,
knockout = nothing,
positive = nothing,
negative = nothing,
effect = nothing,
startlayer = nothing,
stoplayer = nothing,
switchlayer = nothing,
}
backends.codeinjections = {
insertmovie = nothing,
}
backends.registrations = {
grayspotcolor = nothing,
rgbspotcolor = nothing,
cmykspotcolor = nothing,
grayindexcolor = nothing,
rgbindexcolor = nothing,
cmykindexcolor = nothing,
spotcolorname = nothing,
transparency = nothing,
}
local nodeinjections = backends.nodeinjections
local codeinjections = backends.codeinjections
local registrations = backends.registrations
backends.current = "unknown"
function backends.install(what)
if type(what) == "string" then
backends.current = what
what = backends[what]
if what then
local wi = what.nodeinjections
if wi then
for k, v in next, wi do
nodeinjections[k] = v
end
end
local wi = what.codeinjections
if wi then
for k, v in next, wi do
codeinjections[k] = v
end
end
local wi = what.registrations
if wi then
for k, v in next, wi do
registrations[k] = v
end
end
end
end
end
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