[Dev-luatex] return value of filter callbacks

Manuel Pégourié-Gonnard mpg at elzevir.fr
Fri Nov 5 16:01:02 CET 2010

Le 05/11/2010 14:22, Taco Hoekwater a écrit :
> I could have sworn this was
> mentioned in the manual, but I cannot find it myself either.

Got it! It was in the manual under buildpage_filter for luatex 0.25:

> As for all the callbacks that deal with nodes, the return value can be one of three things:
> ·  boolean true signals succesful processing
> ·  node signals that the `head' node should be replaced by this node
> ·  boolean false signals that the `head' node list should be ignored and flushed from memory

Then, the calling convention for this callback was changed, and the text likely
disappeared at this point.


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