On 8/3/2018 1:09 AM, Marcel Krüger wrote:
Hello,
I want to suggest extending the tex.saveboxresource interface to accept a hlist or vlist node as an alternative to a box number as first argument. Currently creating a boxresource from Lua node list requires saving the list in a TeX box register, only to delete that register again by tex.saveboxresource. A direct way to transform a h/vlist into a boxresource would make such code easier and avoid potential side effects from changing the TeX registers. An experimental patch with a suggested implementation is attached.
ok, makes sense (but not entirely ok that way but i can fix it)
I also attached a patch implementing a node.scan method which I think would be another nice addition for LuaTeX: It scans a box with rules similar to `\setbox0` and returns the node. This allows passing box-like material to LuaTeX without requiring box registers.
this is tricky stuff so i need to have a close look at side effects (it's also more relatex to token scanning so belongs in another namespace) i'll have a go at it Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------