[XeTeX] XeTeX, \XeTeXprotrudechars, \rpcode, etc.

[Jonathan Kew]

On 15/4/14 11:05, Philip Taylor wrote:
>... and are
> you also aware of any documentation discussing how hyperlinks
> can be embedded using XeTeX, another apparently undocumented feature
> that is successfully exploited by "hyperref", "eplain", etc., yet
> for which no primitive-level documentation seems to exist.

IIRC, hyperlinks are handled entirely at the pdf output driver level; 
there are no xetex primitives involved. It's just a question of 
inserting appropriate \special{pdf: ...} commands.

So try looking for dvipdfmx documentation about the \special commands it 
supports, and the PDF spec if you need help with the exact PDF fragments 
to insert. In particular, 
http://project.ktug.org/dvipdfmx/doc/tb94cho.pdf might be helpful.

JK