[OS X TeX] separators in label names

[jfbu]

Hi Piet,

Le 13/10/2019 à 14:21, Piet van Oostrum a écrit :
> jfbu <jfbu at free.fr> writes:
> 
>>
>> Hi,
>>
>> sorry if completely off the mark, but doesn't babel provide the
>>
>> \@safe at activestrue
>>
>> toggle precisely for such \csname...\endcsname expansions ?
>>
>> Couldn't crossreftools in presence of babel do
>>
>> \@safe at activestrue
>> ...
>>
>> \@safe at activesfalse
>>
> I have tried that, but because there are all kinds of expansions going on at different times, I couldn't get it working.

It was impossible to get it working while maintaining the main aspect of crossreftools which is to provide expandable macros.

I wonder why Murray needs this package, but my hint at \if at safe@actives babel toggle was under such circumstances misleading as it can't be applied without breaking expandability.

I of course did that without having read the numerous exchanges on tex.sx, and here, and belatedly understood crossreftools is a package providing expandable macros.

Seems Murray got it solved by David, anyway,

Best,

Jean-François


> 
> However, I found that I had made an error in my code. There was a r@{#1} that should be r@#1.
> 
> So the code should be:
> 
> \renewcommand{\@@crtextr at ct@ref}[2]{%
>    \expandafter\@@@crtextr at ct@ref\expandafter{\detokenize{#2}}{#1}%
> }
> \newcommand{\@@@crtextr at ct@ref}[2]{%
>    \expandafter\ifx\csname r@#1\endcsname\relax
>    \crt at refundefined%
>    \else
>    \expandafter\expandafter\csname crt at ref@splitter@#2\endcsname\csname r@#1\endcsname%
>    \fi
> }
>