Re: [AUCTeX] Non-ASCII LaTeX labels (was Re: Headache: filenames with Umlaut under Windows, backward search gives error)

[Ikumi Keita]

Hi Jean,

>>>>> jfbu <address@hidden> writes:
> Le 26/09/2019 à 18:18, jfbu a écrit :
>> Le 26/09/2019 à 17:22, Ikumi Keita a écrit :
>>>>>>>> AW <address@hidden> writes:
>>> 
>>>> By the way: the label mechanism doesn't accept Umlaute yet. Is there a
>>>> variable which I could customize?)
>>> 
>>> I guess you are using RefTeX.  Have you tried the variable
>>> `reftex-label-illegal-re'?  It might be good for you to customize it to
>>> "[^-a-zA-Z0-9_+=:;,.[:multibyte:]]".
>>> 
>>> (That value may be too loose, however.  I don't know what range of
>>> unicode characters are allowed for LaTeX labels.)
>> 
>> Hi Keita
>> 
>> So far, none.


> Hmm ... I spoke too fast

> \label{ééééà} and \ref

> works already as long as I add  \usepackage[T1]{fontenc}

> (not even needed to have french as class option and babel package)

> Sadly I don't have time now to provided a better answer,
> as I must quit my computer now 


> I never used such exotic label hence was not informed enough
> and should not have replied to add noise

> Best

Actually, Japanese (u)pLaTeX are extended to allow Japanese characters
for labels alreadly, so I have customized `reftex-label-illegal-re' to
"[^-a-zA-Z0-9_+=:;,.[:multibyte:]]" since unicode-based Emacs was
released.  I didn't test whether the current pdflatex allows non-ASCII
labels or not :-).

Best,
Ikumi Keita