-- Three aux. functions, bollowed from tex.web
local unity=65536
-local function print_scaled(s)
+function print_scaled(s)
local out=''
local delta=10
if s<0 then
function math.two_add(a,b) return a+b end
function math.two_average(a,b) return (a+b)/2 end
----- table: charprop_stack_table [stack_level][chr_code].{pre|post|xsp}
+---- table: charprop_stack_table [stack_level].{pre|post|xsp}[chr_code]
------------------------------------------------------------------------
-- CODE FOR GETTING/SETTING PARAMETERS