0000154: Empty \local..boxes are creating problems

ID	Project	Category	View Status	Date Submitted	Last Update

0000154	luatex	luatex bug	public	2009-02-02 23:25	2009-04-10 12:37

Reporter	Taco	Assigned To	Taco
Priority	normal	Severity	minor	Reproducibility	have not tried
Status	closed	Resolution	fixed
Target Version	0.38.0	Fixed in Version	0.38.0

Summary	0000154: Empty \local..boxes are creating problems
Description	Attached is a bug test from Elie Roux illustrating the problem, which is that \localleftbox {} results in an empty \hbox{} being added to each line. Elie wrote: I have finally found the bug I was tracking in Gregorio for some time... Here is an example where putting empty boxes does not lead to a strange behaviour, but to a really buggy behaviour: If an empty \localleftbox is set with attribute 1, and after that we set the attribute to -1, the lines after the first will still have the attribute set to 1, because the empty box will set it... It is I think extremely confusing, and it's a bug that is difficult to track (even if now that I have the solution it will be a one-liner patch to fix it). So I insist, I think that removing the nodes will be much better, because this kind of behaviour will certainly appear with a lot of styles using \localleftbox.
Additional Information	In the implementation it will be best to intercept the empty box at definition time. If there is no contents, it can revert back to voidness right there.
Tags	No tags attached.

Date Modified	Username	Field	Change
2009-02-02 23:25	Taco	New Issue
2009-02-02 23:25	Taco	File Added: bug-l.zip
2009-02-02 23:25	Taco	Status	new => assigned
2009-02-02 23:25	Taco	Assigned To	=> Taco
2009-02-24 15:00	Taco	Target Version	=> 0.40.0
2009-04-09 19:42	Taco	Status	assigned => resolved
2009-04-09 19:42	Taco	Resolution	open => fixed
2009-04-09 19:42	Taco	Note Added: 0000150
2009-04-10 12:36	Taco	Fixed in Version	=> 0.38.0
2009-04-10 12:36	Taco	Target Version	0.40.0 => 0.38.0
2009-04-10 12:37	Taco	Status	resolved => closed