[Dev-luatex] colors, colorstack

[Patrick Gundlach]

Hi,

for dealing with color inside self-built nodelists, I create a whatsit (pdfliteral, 8) node for "q <colordef>", prepend it to my nodelist and at the end of the nodelist I put a whatsit (8,8) "Q" to end the color definition. This interferes somehow with placement of text (I tried mode=1 and mode=0) so now I am thinking of using pdfTeX's colorstacks. 

1) Do you have a feeling if pdfcolorstacks makes sense with do-it-yourself nodelists?

more important:

2) Is there something like \pdfcolorstackinit in lua?


Patrick