Hello Karl, On Tue, Oct 13, 2020 at 03:01:51PM -0600, Karl Berry wrote: > initial documentations/articles that list the primitives > needed and what they have to achieve? > > I am not sure if it is complete, but there was a list provided in the > LaTeX news of the time: > > https://www.latex-project.org/news/2020/02/02/issue31-of-latex2e-released/ > -> https://www.latex-project.org/news/latex2e-news/ltnews31.pdf > > As for documentation, the pdftex manual, at least, describes them all in > its usual terse way. Not sure about doc for the other engines. If the > pdftex doc needs improving, let me know. > Thanks for the pointers! > > LaTeXers - personally, I think it would be nice if the "primitive > requirements" became a permanent part of the LaTeX > documentation. (Apologies if they already there.) Maybe? > > rather than any technical restriction: pdfTeX is GPL. > > FWIW, I suspect Thanh would not have a problem with allowing use of > those primitive implementations under CC0 or any other license terms. > > Thierry, let me know if I should ask him ... --best, karl. Thank you for the help. For the moment, I will start by absorbing the documentation. And will give an update (since I will have to try to do this on my spare time, it will take some time) if I need help or if I would like to use an adapted existing implementation with a problematic (from the kerTeX license point of view) licence. Best regards, -- Thierry Laronde <tlaronde +AT+ polynum +dot+ com> http://www.kergis.com/ http://www.kergis.com/kertex.html http://www.sbfa.fr/ Key fingerprint = 0FF7 E906 FBAF FE95 FD89 250D 52B1 AE95 6006 F40C