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if not modules then modules = { } end modules ['pack-rul'] = {
version = 1.001,
comment = "companion to pack-rul.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
--[[ldx--
<p>An explanation is given in the history document <t>mk</t>.</p>
--ldx]]--
local texdimen, texcount, texbox = tex.dimen, tex.count, tex.box
local hpack, free, copy, traverse_id = node.hpack, node.free, node.copy_list, node.traverse_id
function commands.doreshapeframedbox(n)
local noflines, lastlinelength, box = 0, 0, texbox[n]
if box.width ~= 0 then
local list = box.list
if list then
local width, done = 0, false
for h in traverse_id('hlist',list) do -- no dir etc needed
local l = h.list
if l then
done = true
local p = hpack(copy(l))
lastlinelength = p.width
if lastlinelength > width then
width = lastlinelength
end
free(p)
end
end
if done then
if width ~= 0 then
for h in traverse_id('hlist',list) do
local l = h.list
if l then
-- if h.width ~= width then -- else no display math handling (uses shift)
h.list = hpack(l,width,'exactly',h.dir)
h.shift = 0 -- needed for display math
h.width = width
-- end
end
end
end
box.width = width
end
end
end
texdimen["framedlastlength"] = lastlinelength
texcount["framednoflines"] = noflines
end
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