>> right, and that the parameters have to be calculated to scaled points, > instead of given as glue. > > On the other hand, I understand that this is just the intrinsic formula > for luatex programming, and in this context, the list is completely > understandable in the the format, given above.
in LuaTeX (on the lua side) everything works with scaled points (when a <dimen> is expected). For example, when you create a new kern node: k = node.new("kern") k.kern = 2 * 2^16 -- that is 2 TeX points I confused <dimen> in the explanation in the TeXbook with <glue>. Thus I assumed glue_spec nodes in the parshape table of tex.linebreak(). Patrick