Hi Alex, At 2022-01-24T22:22:21+0100, Alejandro Colomar wrote: > Hi Branden, > > I used the shiny new .MR macro from groff git HEAD, and I like it :)
Great! I'm thrilled to hear it.
> However, I miss the hyperlink on non-html output. I tried PDF (groff
> -T pdf), HTML (groff -T html), and the terminal (man), and I only saw
> the link on the HTML page.
That's expected. There are two issues. The one with the terminal is
expected, and you _can_ get what you want.
From NEWS:
o The an (man) macro package can now produce clickable hyperlinks within
terminal emulators, using the OSC 8 support added to grotty(1) (see
below). The groff man(7) extension macros 'UR' and 'MT', present
since 2007, expose this feature. At present the feature is disabled
by default in `man.local` pending more widespread recognition of OSC 8
sequences in pager programs. The package now recognizes a `U`
register to configure hyperlink support for any output driver.
Use a command like
printf '\033]8;;man:grotty(1)\033\\grotty(1)\033]8;;\033\\\n' | more
to check your terminal and pager for OSC 8 support. If you see
"grotty(1)" and no additional garbage characters, then you may wish to
edit "man.local" to remove the lines that disable this feature.
So you might want to add -U1 to your groff command line to check it out.
And possibly edit /etc/groff/man.local (or wherever that file is
installed per GNU configure options) to make the enablement permanent.
Also, from groff_man(7):
Hyperlink macros
Man page cross references are best presented with .MR. Email
addresses are bracketed with .MT/.ME and other forms of hyperlink
with .UR/.UE. Hyperlinked text is supported on the html, tty,
and xhtml output devices; terminals and pager programs must
support ECMA-48 OSC 8 escape sequences (see grotty(1)). When
device support is unavailable or disabled with the U register
(see section “Options” below), .MT and .UR URIs are rendered
between angle brackets after the linked text.
[...]
-rU1 Enable generation of URI hyperlinks in the grohtml and
grotty output drivers. grohtml enables them by default;
grotty does not, pending more widespread pager support for
OSC 8 escape sequences. Use -rU0 to disable hyperlinks;
this will make the arguments to MT and UR calls visible in
the document text produced by link-capable drivers.
Is there some other good place I can put this information?
> Would you mind adding it to the other devices?
PDF is the other issue. It just hasn't been done yet. groff's output
driver for PDF, gropdf(1) is a complex beast with a bewildering array of
options.
I _think_ what I want is the 'pdfhref' device control command, but I'm
not certain.
I had been postponing this work until (A) a volunteer saved me the
trouble or (B) I achieved my long-awaited dream of shipping a typeset
version of all of groff's man pages.
(B) just happened this week. Even it will require 2 stages. (1)
Enablement of general URLs; (2) special trickery to render MR links as
internal links within the ~380-page document. Deri James has done stuff
like this before, so I know it's possible. It's just something I need
to learn, though my preference would be for someone to give me a fish
while I consider what sort of bait and tackle I'd like to have someday.
;-)
This could be a Savannah ticket, too, but only file it if you want to: I
was going to work on this anyway, as noted.
Regards,
Branden
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