Re: [Groff] pdfmark strikes back + general script/groff handshake

[Carlos J. G. Duarte]

Hi there,

Sigfrid Lundberg - LUB NetLab wrote:

> [...]
>
> manuscript catalogue I'm building). I've got two problems with this, the
> first being that I don't understand what in the scripts that generates the
> anchor text and what embeds the URI:
>
>  .ds pdfref-1 ps: exec [ /Rect [145610 u 89240 u 313860 u 96140 u] \
>                          /Border [0 0 \\n[wid]] \
>                          /Action << /Subtype /URI /URI (\\$1) >> \
>                          /Subtype /Link \
>                          /ANN pdfmark'\c
>
>  
Well, I took some shortcuts to WL's solution. These shortcuts make the 
solution somehow simpler, but messier in some sense (can't win them 
all!) One of the cuts was those pdfref-1 strings...  I take the fact the 
references are output by the .PSHREF macro, so the script searches for 
this text (^\.PSHREF) and when it finds, it outputs the PS inline code. 
So things get automatized and we don't need to maintain those DS strings.

Now, the small .PSHREF macro I've send was just a simple one for 
testing. That uses the same string both for text and anchor. The real 
PSHREF I'm using is this (the script will continue to work with no change):

.de PSHREF      \" HREF continuation_char NAME
.               \" exemplo: .PSHREF http://www.google.com . "google"
.fam HN
.tm TM:pshref: \\$1
.ie !'\\$3'' \{\
\O1\m[white]|\m[]\h'-\w'|'u'\O2\c
\\m[blue]\\$3\\m[]\c
\O1\m[white]|\m[]\h'-\w'|'u'\O2\c
.\}
.el \{\
\O1\m[white]|\m[]\h'-\w'|'u'\O2\c
\\m[blue]\\$1\\m[]\c
\O1\m[white]|\m[]\h'-\w'|'u'\O2\c
.\}
.ie !'\\$2'' \&\\$2
.el \&
.fam
..

As for your second question, there is PDF support for internal links, 
but I've never used it. The inline PS code must be output in two phases, 
one to define the link and other to reference it. I've seen past posts 
on this list containing code and examples to do it in groff.

Hmm... I'm sure you can find it on google, but at the time I did save 
that stuff, so I'm now uploading it to this place:
   http://cgd.sdf-eu.org/pdf-groff/
you can find here groff code that suppost pdfmark stuff and three 
documents about PDF from adobe (one PDF reference and two on PDFMARK). 
None of this stuff is mine, and I didn't change the files in anyway (I 
think!).

best regards,
--
carlos