With the following document:
-------------------------
\directlua{
function test (head)
texio.write_nl('====')
texio.write_nl('')
for item in node.traverse(head) do
if item.id == node.id'glyph' then
texio.write(unicode.utf8.char(item.char))
else
texio.write('[' .. item.id .. ']')
end
end
return head
end
callback.register("pre_linebreak_filter", test)
}
12-34
\bye
-------------------------
TexLive 2017 (1.0.4) showed:
[9][0]12-34[14]
But with 2018 (1.07) I get:
[9][0]12[7]34[14][12]
In other words, the hyphen char has been replaced
by a dicretrionary.
Cheers
Javier
