[Dev-luatex] return value of filter callbacks
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.
More information about the dev-luatex