Re: [Groff] Hyphenation and email/web addresses <minor www.tmac patch>

[Werner LEMBERG]

> >> Could this be built into the .MTO and .URL macros in -mwww?
> >
> > good idea.. I think this patch fixes the problem..
> >
> > ...
> >  .    if !r ps4html .ad
> > +.    hy
>
> This sets the hyphenation mode unconditionally, even if it was
> turned off before.  You need to save the previous mode and restore
> it.  If I read groff(7) correctly, this is stored in \n[.hy].

I believe this needs more thinking.  My suggestion is to use a more
sophisticated approach (in both .MTO and .URL) which I've seen in the
American `Sky & Telescope' magazine: Allow breaks *before* `.', `@',
`-', and `/' without inserting a hyphen, taking care to have the
protocol (`http://', etc.) not separated.  Examples:

  Some text before
  address@hidden and after:

  =>  Some text before this-is-a
      -really-extremely-longish
      @email.address and after

  The groff CVS archive can be viewed from
  http://www.ffii.org/cgi-bin/viewcvs.cgi/groff

  =>  The groff CVS archive can be
      viewed from  http://www.ffii
      .org/cgi-bin/viewcvs.cgi
      /groff

This makes it impossible to confuse the sentence's punctation
characters with characters part of the URL.

What do you think?  Any volunteer to implement that?  `/' is already
handled by www.tmac.


    Werner