[Groff] pdfmark, URI and coordinates of output text

[Carlos J. G. Duarte]

Hello all,
I'm new to this list.

I want to place an HREF like markup into PDF documents.
Example:
.HREF "http://www.google.org";
would display http://www.google.org, but if on a PDF file, the link 
would also
appear when the user moved the mouse around.

I've made a macro that does this stuff, using pdfmark. But is has 
essencially
one major failure-- I need to get the x,y position where my URL is displayed
and where is ends, and I simply can't do that correctly.
I've tried lots of different setups, using \n[hp] \k[reg] |0 and others, 
but that doesn't
appear to work.

Currenly I'm using .mk to get vertical position and 
\n[.k]+\n[.o]+\n[.in] to get horizontal position.

This only works if the URL is kept on a single line. We can force this 
to happen if
we disable hyphenation temporarly, but there is a problem I can't fix: 
when the complete
URL wraps into the other line. I can not detect (but have tried!) when 
this happens.
Again, on a diversion the horizontal position doesn't get it right.

I'll leave my macro as an attachment.
Is there any way to know the x,y position where some text was put?

best regards to all,
Carlos

pshref.me
Description: Troff ME-macros document