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Re: [Groff] setting a custom page length

From: Tadziu Hoffmann
Subject: Re: [Groff] setting a custom page length
Date: Fri, 2 Apr 2010 18:37:57 +0200
User-agent: Mutt/1.5.17 (2007-11-01)

> Don't y'all just love dealing with beginners

As with most computer programs, experience helps quite a lot,
and the best way to gain experience is through experimentation.

> I had figured out that I had to pass a page size to grops but
> I had it stuck in my head that it had to be a defined size,
> letter, legal, a2, ...

Which is not surprising, since most printers cannot provide
arbitrary paper sizes, except for some large-format printers
which can cut arbitrary pieces from a large roll.

The feature is handy, however, for stuff which does not
necessarily need to be printed, such as presentations in
the 4:3 aspect ratio of most video projectors.

> Is this not documented or did I just overlook it

It is documented.

>From grops(1):

          Set  physical  dimension  of  output medium.  This overrides the
          papersize, paperlength, and  paperwidth  commands  in  the  DESC
          file;  it  accepts  the same arguments as the papersize command.
          See groff_font (5) for details.

and from groff_font(5):

   papersize string
          Select  a paper size.              [...]                Finally,
          string can be a custom paper size in the format length,width (no
          spaces  before and after the comma).  Both length and width must
          have a unit appended; valid values are `i' for inches,  `c'  for
          centimeters,  `p'  for  points,  and  `P'  for  picas.  Example:
          12c,235p.  An argument which  starts  with  a  digit  is  always
          treated  as a custom paper format.  papersize sets both the ver-
          tical and horizontal dimension of the output medium.

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