Peter Rolf wrote:

hi,

i'm currently struggling with some basic runtime problems in luatex.

are there any rules for directly writing a pdf object? in context this is only done in the tex part. especially what pitfalls are there, if you do it in the lua part of the code ( tex.sprint(tex.ctxcatcodes,"\\immediate\\pdfobj{}")) ) and use "\the\pdflastobj" (tex or lua) to reference that object?

should be ok if you so it in sequence that kind of backend stuff is kind of long term dev in luatex, we're experimenting with things but this year you will not see such an interface; some internals need to be changed/cleaned up etc etc

and what must be done to make sure that things are done immediatly (in lua), so that one ore more switches between lua<-->tex always uses the right obj number? i already noticed that you have to use separated lua code for 'creation' and 'reference' (different chunks).

just use the obj interface of context then (see spec-tpd for usage, obj references and such) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------