[Dev-luatex] \lastnodetype not working as expected in LuaTeX

Hans Hagen pragma at wxs.nl
Tue Jun 12 19:11:48 CEST 2012


Hi Frank,

Here's the whole story:

function oneliner(head)
     local h = node.hpack(head)
     local d = tex.baselineskip.width - tex.nest[tex.nest.ptr].prevdepth 
- h.height
     tex.nest[tex.nest.ptr].prevdepth = h.depth
     tex.nest[tex.nest.ptr].prevgraf  = 1
     local n
     if d < tex.lineskiplimit then
         n = 1
         d = tex.lineskip
     else
         n = 2
     end
     local s = node.new("glue_spec")
     local n = node.new("glue",n)
     s.width = d
     n.spec = s
     return node.insert_before(h,h,n)
end

-- the function also has to take care of adding proper skips
-- before (and if needed after) and setting some parameters

callback.register("linebreak_filter",oneliner)

Hans


-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------




More information about the dev-luatex mailing list