lyx-devel Digest, Vol 254, Issue 1

[Daniel Els]

Igor

The main command in refstyle that cycles through a list of references (and
a single reference) is:

    \def\RS at ref#1[#2]#3{%
        \begingroup
            \RS at setkeys{RS@#1}{#2}%
            \@safe at activestrue%
            \edef\RS at tmpa{\zap at space#3 \@empty}%
            \@safe at activesfalse%
            \edef\RS at tmpa{\noexpand\RS@@ref{#1} \RS at tmpa
,\relax\noexpand\@eolst}%
            \RS at tmpa%
        \endgroup}

It removes spaces and was intended for the following scenario, and that is
how many people write a list of references with spaces in between

      \secref(aaa, bbb, ccc) -> \ref{sec:aaa}, \ref{sec:bbb}, \ref{sec:ccc}

If the \zap at space part is removed then we have the wrong reference:

      \secref(aaa, bbb, ccc) -> \ref{sec:aaa}, \ref{sec: bbb}, \ref{sec:
ccc}

The refstyle package cannot distinguish between a space in a list and a
space in a reference. If I change that it will break a lot of old
documents. The second point is that in standard latex, spaces in labels is
a newish thing. It was not always there. Also note even if you put 10
spaces in a row in a label, latex only passes one through to the definition
- see the .aux file. I think it is better to use an underscore _ or include
your label in brackets {aaa}.

Danie Els





On Mon, 9 Sept 2024 at 11:21, Igor <rychphd at gmail.com> wrote:

> ==========
> Cc: Danie Els
> Hi Dannie,
> Seeing that you've updated the refstyle packages quite recently, on
> 2024/02/01, could you comment on the issue below? Full discussion
> starts from
> https://www.mail-archive.com/lyx-devel@lists.lyx.org/msg222793.html.
> Basically, due to a refstyle bug (?) of eating up the whitespaces from
> label names aka " refstyle does not support spaces in references", the
> LyX developers have to either escape ALL label names  or as suggested
> in the patch below, to enclose the label's name within additional {}
> just for refstyle's formatted references uses...
>
> I was wondering if you could rather fix it inside refstyle.sty?!
> Thanks,
> Igor
> ==========
>
>
>
> > > Seems like a refstyle's bug.
> > > \label{sec:A B}
> > > ...
> > > \secref{A B} -- can't find the label sec:AB -- refstyle has eaten up
> > > my whitespace!
> > >
> > > \secref{{A B}} -- works!
> >
> > Maybe, but as long as refstyle is not fixed (and I believe it is not
> > maintained any longer), escaping whitespace seems better than such
> > extra-grouping.
> >
> > > > \secref{{A B}} -- works!
> > >
> > > Actually, considering all eventualities, this might be the best
> > > solution, as the problem only concerns refstyle's formatted ref
> > > commands. All other solutions that I could think of add unnecessary
> > > complication.
>
> > > Does tex2lyx need some adaptation to avoid {{{{labels}}}} on
> > > roundtrips?
> >
> > Yes, you're right.
>
> Jürgen, thank you for the patch and the others for the discussion. Let
> me answer this question of yours:
> > Would it work for you if we limited the space escaping to the case only
> > where refstyle is used? I.e., could you uncheck "Use refstyle"?
>
> -- refstyle gets loaded automatically when I choose Formatted
> reference through LyX GUI. Ironically I redefine most of the
> refstyle's formatted commands underneath :) I'm going to test to see
> how I can implement this with "Use refstyle" unchecked in the future
> documents.
>
> Thanks,
> Igor
>
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