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

local jobpositions   = job.positions
local mpnumeric      = mp.inject.numeric
local mpstring       = mp.inject.string
local scanstring     = mp.scan.string
local factor         = number.dimenfactors.bp
local registerdirect = metapost.registerdirect

local page           = jobpositions.page
local paragraph      = jobpositions.paragraph
local column         = jobpositions.column
local region         = jobpositions.region
local x              = jobpositions.x
local y              = jobpositions.y
local xy             = jobpositions.xy
local width          = jobpositions.width
local height         = jobpositions.height
local depth          = jobpositions.depth
local leftskip       = jobpositions.leftskip
local rightskip      = jobpositions.rightskip
local hsize          = jobpositions.hsize
local parindent      = jobpositions.parindent
local hangindent     = jobpositions.hangindent
local hangafter      = jobpositions.hangafter
local lowerleft      = jobpositions.lowerleft
local upperleft      = jobpositions.upperleft
local lowerright     = jobpositions.lowerright
local upperright     = jobpositions.upperright

registerdirect("getpospage",       function() return page      (scanstring()) end)
registerdirect("getposparagraph",  function() return paragraph (scanstring()) end)
registerdirect("getposcolumn",     function() return column    (scanstring()) end)
registerdirect("getposregion",     function() return region    (scanstring()) end)
registerdirect("getposx",          function() return x         (scanstring()) * factor end)
registerdirect("getposy",          function() return y         (scanstring()) * factor end)
registerdirect("getposwidth",      function() return width     (scanstring()) * factor end)
registerdirect("getposheight",     function() return height    (scanstring()) * factor end)
registerdirect("getposdepth",      function() return depth     (scanstring()) * factor end)
registerdirect("getposleftskip",   function() return leftskip  (scanstring()) * factor end)
registerdirect("getposrightskip",  function() return rightskip (scanstring()) * factor end)
registerdirect("getposhsize",      function() return hsize     (scanstring()) * factor end)
registerdirect("getposparindent",  function() return parindent (scanstring()) * factor end)
registerdirect("getposhangindent", function() return hangindent(scanstring()) * factor end)
registerdirect("getposhangafter",  function() return hangafter (scanstring()) * factor end)

local t = { 0, 0 } -- let's share

registerdirect("getposxy",         function() local x, y = xy        (scanstring()) t[1] = x * factor t[2] = y * factor return t end)
registerdirect("getposupperleft",  function() local x, y = upperleft (scanstring()) t[1] = x * factor t[2] = y * factor return t end)
registerdirect("getposlowerleft",  function() local x, y = lowerleft (scanstring()) t[1] = x * factor t[2] = y * factor return t end)
registerdirect("getposupperright", function() local x, y = upperright(scanstring()) t[1] = x * factor t[2] = y * factor return t end)
registerdirect("getposlowerright", function() local x, y = lowerright(scanstring()) t[1] = x * factor t[2] = y * factor return t end)
registerdirect("getposllx",        function() local x, y = lowerleft (scanstring()) return x * factor end)
registerdirect("getposlly",        function() local x, y = lowerleft (scanstring()) return y * factor end)
registerdirect("getposurx",        function() local x, y = upperright(scanstring()) return x * factor end)
registerdirect("getposury",        function() local x, y = upperright(scanstring()) return y * factor end)