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if not modules then modules = { } end modules ['pack-obj'] = {
version = 1.001,
comment = "companion to pack-obj.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
--[[ldx--
<p>We save object references in the main utility table. jobobjects are
reusable components.</p>
--ldx]]--
local context = context
local implement = interfaces.implement
local allocate = utilities.storage.allocate
local collected = allocate()
local tobesaved = allocate()
local jobobjects = {
collected = collected,
tobesaved = tobesaved,
}
job.objects = jobobjects
local function initializer()
collected = jobobjects.collected
tobesaved = jobobjects.tobesaved
end
job.register('job.objects.collected', tobesaved, initializer, nil)
local function saveobject(tag,number,page)
local t = { number, page }
tobesaved[tag], collected[tag] = t, t
end
local function setobject(tag,number,page)
collected[tag] = { number, page }
end
local function getobject(tag)
return collected[tag] or tobesaved[tag]
end
local function getobjectnumber(tag,default)
local o = collected[tag] or tobesaved[tag]
return o and o[1] or default
end
local function getobjectpage(tag,default)
local o = collected[tag] or tobesaved[tag]
return o and o[2] or default
end
jobobjects.save = saveobject
jobobjects.set = setobject
jobobjects.get = getobject
jobobjects.number = getobjectnumber
jobobjects.page = getobjectpage
implement {
name = "saveobject",
actions = saveobject
}
implement {
name = "setobject",
actions = setobject,
arguments = { "string", "integer", "integer" }
}
implement {
name = "objectnumber",
actions = { getobjectnumber, context },
arguments = { "string", "string" },
}
implement {
name = "objectpage",
actions = { getobjectpage, context },
arguments = { "string", "string" },
}
implement {
name = "doifelseobjectreferencefound",
actions = { jobobjects.get, commands.doifelse },
arguments = "string"
}
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