[luatex] Glue node without spec field?

[Manuel Pégourié-Gonnard]

On 07/01/2010 13:10, Taco Hoekwater wrote:
> No, that is wrong. spec is *never* an empty node.
> 
> The spec can be zero though, and that is a static spec with
> values 0pt plus 0pt minus 0pt. The lua interface treated that
> wrongly (all other node links cannot be zero, and there was
> no special case for spec fields).
> 
Ok. Now the interface is the same as for nay other node, according to my tests.
So, the user doesn't even need to know that there is something special with 0
spec, right?

> The non-zero subtype means that this glue matches
> one of the internal parameters, e.g. 9 == \rightskip,
> or that it is a leader (values 100-102).
> 
Thanks for the explanation! I've been wondering about the special subtypes.

Manuel.