From: Nick Dokos <nicholas.dokos@hp.com>
To: Bernt Hansen <bernt@norang.ca>
Cc: nicholas.dokos@hp.com, emacs-orgmode@gnu.org
Subject: Re: Re: \nbsp usage
Date: Wed, 14 Jul 2010 00:23:18 -0400 [thread overview]
Message-ID: <8625.1279081398@gamaville.dokosmarshall.org> (raw)
In-Reply-To: Message from Bernt Hansen <bernt@norang.ca> of "Tue, 13 Jul 2010 20:37:06 EDT." <874og2x5jh.fsf@gollum.intra.norang.ca>
Bernt Hansen <bernt@norang.ca> wrote:
> Erik Butz <erik.butz@googlemail.com> writes:
>
> > Hi all,
> >
> > I have a somewhat stupid problem, but didn't find a solution in the
> > manual or the list archive.
> > I want to use the \nbsp macro to generate a '~' symbol for Latex, but
> > I don't seem to get it to work correctly in my case.
> > I want to write 200~m=C2=B2
> >
> > If I do: 200\nbspm^2
> > it gets exported as: 200\nbspm$^2$, so the symbol is not recognized.
> >
> > If I do: 200\nbsp m^2
> > it gets exported as 198~ m$^2$, so in addition to the nbsp there is
> > another space at which a linebreak can occur
> >
> > trying: 200\nbsp{}m^2 in analogy to other commands
> > I get: 200~\{\}m$^2$, so the parentheses are not recognized as
> > belonging to the command.
> >
> > I am using the latest org version (just did a git pull and checked
> > that the behavior is still there) with emacs 23.1.1
> >
> > Any hints appreciated.
>
> Hi Erik,
>
> This seems to work for me:
>
> ,----[ sample org file ]
> | * nbsp
> | If I do: one two three four five six seven eight nine ten eleven twelve 2=
> 00\nbsp m^2 it gets exported
> `----
>
> this exports as=20
>
> ,----[ latex output ]
> | ...
> | \label{sec-1}
> |=20
> | If I do: one two three four five six seven eight nine ten eleven twelve 2=
> 00~ m\^{}2 it gets exported
> | \end{document}
> `----
>
> and when I look at that as a PDF it doesn't break between the 200 and
> m^2. I tried adding x and xx before the 200 and it pushes the entire
> thing to the next line. I can't make it break on a line so 200 is at
> the end of one line and m^2 is on the following line.
>
> Does this work for you?
>
Bernt,
I suspect that you cannot decide the question with a simple experiment
like this, but I have no counterexample to offer.
However, Knuth warns explicitly (p.91 of my version of the TeXbook,
paperback 19th printing, Oct. 1990) that "...you shouldn't leave any blanks
next to the ~, since they will count as additional spaces."
It may well be that TeX's line-breaking algorithm does the right thing in
the example, but when push comes to shove in a *really* complicated situation,
it might be forced to choose the space after the tilde to break the line at.
Regards,
Nick
next prev parent reply other threads:[~2010-07-14 4:23 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-13 16:16 \nbsp usage Erik Butz
2010-07-14 0:37 ` Bernt Hansen
2010-07-14 4:23 ` Nick Dokos [this message]
2010-07-14 7:19 ` Sébastien Vauban
2010-07-14 8:55 ` Carsten Dominik
2010-07-14 11:37 ` Erik Butz
2010-07-14 12:32 ` Bernt Hansen
2010-07-14 14:54 ` Nick Dokos
2010-07-15 12:00 ` Erik Butz
2010-07-14 11:54 ` Bernt Hansen
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