Hi Wlodek, Wlodek Bzyl wrote:
Is it possible to rewind the head pointer below on the begining of the list and to print the hyphenated list?
That it doesnt work is a combination of two (maybe three) things. First, there is a bug in the executable so that you need to specify the tail explicitly (I have fixed that in the trunk, just moments ago) Second, you have to create characters (subtype 1) instead of glyphs (subtype 0). This is badly documented, but I do not yet know where to insert the relevant text. Third, if you traverse_id, you will never ever see the hyphens, because they are of type discretionary (id 7), not glyph (33). The code below should run even on the unpatched executable: \directlua 0 { function traverse_glyphs(head) for t in node.traverse(head) do if t.id == 33 then texio.write_nl('char = ' .. t.char) else texio.write_nl('id = ' .. t.id) end end end head = node.new(33,1) head.font = font.current() head.char = 97 % ascii a head.lang = 0 tail = node.new(33,1) tail.font = font.current() tail.char = 98 % ascii b tail.lang = 0 % build 'ab' list head.next = tail tail.next = nil traverse_glyphs(head) lang.hyphenate(head, tail) traverse_glyphs(head) } \end Best wishes, Taco