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.
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. Best regards Marcel
luatex-node-savebox.diff
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luatex-node-scan.diff
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