[latexrefman] \normalsfcodes

[Vincent Belaïche]

Le sam. 7 août 2021 à 23:44, Karl Berry <karl at freefriends.org> a écrit :
>
>     because space factors are numbers, aren't they ?
>
> Certainly.

I did the change and much more in rev 949. Hopefully Jim or you can
double-check the English.

>
>     I am also wondering what the difference is between \normalsfcodes
>     and \nonfrenchspacing ?
>
> Good question.
>
> What I see in ltfiles.dtx is the description below. So \normalsfcodes
> can be either \frenchspacing or \nonfrenchspacing, depending on what is
> set for the document. I believe it gets determined at the first \output
> if not already set.
>
> Perhaps the LaTeX people wrote documentation for \normalsfcodes in
> usrguide, or somewhere, that could be adapted. It would take quite a
> while to research the exact behavior from scratch. --best, karl.
>
>
> % So that punctuation in headings is not disturbed by verbatim
> % or other local changes to the space factor codes, save the document
> % default here. This will be locally reset by the output routine.
> % For special cases a class may want to define |\normalsfcodes|
> % directly, in case that definition will be used.
> % (This is an old bug, problem existed in \LaTeX2.0x and plain \TeX.)
> % \changes{v1.1k}{1997/04/14}
> %            {Set the document space factor defaults. latex/2404}
> %    \begin{macrocode}
>   \ifx\normalsfcodes\@empty
>     \ifnum\sfcode`\.=\@m
>       \let\normalsfcodes\frenchspacing
>     \else
>       \let\normalsfcodes\nonfrenchspacing
>     \fi
>   \fi
> %    \end{macrocode}

OK, I will try to propose some text based on this.

   V.