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if not modules then modules = { } end modules ['mlib-lmp'] = {
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",
}
-- path relates stuff ... todo: use a stack (or numeric index to list)
local type = type
local aux = mp.aux
local mpnumeric = aux.numeric
local mppair = aux.pair
local p = nil
local n = 0
local function mf_path_reset()
p = nil
n = 0
end
local get = mp.get
local mpgetpath = get.path
local function mf_path_length(name)
p = mpgetpath(name)
n = p and #p or 0
mpnumeric(n)
end
local function mf_path_point(i)
if i > 0 and i <= n then
local pi = p[i]
mppair(pi[1],pi[2])
end
end
local function mf_path_left(i)
if i > 0 and i <= n then
local pi = p[i]
mppair(pi[5],pi[6])
end
end
local function mf_path_right(i)
if i > 0 and i <= n then
local pn
if i == 1 then
pn = p[2] or p[1]
else
pn = p[i+1] or p[1]
end
mppair(pn[3],pn[4])
end
end
mp.mf_path_length = mf_path_length mp.pathlength = mf_path_length
mp.mf_path_point = mf_path_point mp.pathpoint = mf_path_point
mp.mf_path_left = mf_path_left mp.pathleft = mf_path_left
mp.mf_path_right = mf_path_right mp.pathright = mf_path_right
mp.mf_path_reset = mf_path_reset mp.pathreset = mf_path_reset
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