[luatex] A possible bug
Javier Bezos
listas at tex-tipografia.com
Thu Apr 4 17:29:19 CEST 2019
Maybe it has been already fixed, but I can't install 1.10
right now, so first a little favour. What do you get with
the following document (plain luatex):
--------------------------------
\directlua{
function test (head, g)
texio.write_nl('==== ' .. g)
texio.write_nl('')
for item in node.traverse(head) do
if item.id == node.id'glyph' then
texio.write('{' .. item.char .. '}')
elseif item.id == node.id'dir' then
texio.write('<' .. item.dir .. '>')
elseif item.id == node.id'glue' then
texio.write(' ')
else
texio.write('[' .. item.id .. ':' .. (item.subtype or '?') .. ']')
end
end
return head
end
% callback.register("pre_linebreak_filter", test)
callback.register("hpack_filter", test)
}
ABC \hbox{abc \textdir TRT fgh} DEF
\textdir TLT
ABC \hbox{abc \textdir TRT fgh} DEF
\bye
-----------------------------------
With 1.07 the log shows:
==== hbox
{97}{98}[13:0]{99} <+TRT>{102}{103}{104}
==== hbox
{97}{98}[13:0]{99} <-TLT><+TRT>{102}{103}{104}
Note the extra node with a closing dir after setting
explicitly the global \textdir to TLT (which is the
default dir). The stuff after this node is discarded.
Does 1.10 give the same result?
Javier
More information about the luatex
mailing list