[OS X TeX] separators in label names

Ettore Aldrovandi ealdrov at math.fsu.edu
Sun Oct 6 13:04:13 EDT 2019

Why not an underscore?


But I feel the pain: Emacs + AUCTeX automatically uses a colon (by default) as a separator.


Ettore Aldrovandi
Department of Mathematics, Florida State University
1017 Academic Way                *   http://www.math.fsu.edu/~ealdrov
Tallahassee, FL 32306-4510, USA * * aldrovandi at math dot fsu dot edu

> On Oct 5, 2019, at 15:24, Murray Eisenberg <murrayeisenberg at gmail.com> wrote:
> From George Grätzer’s “More Math into LaTeX” (or earlier versions of it), I adopted the convention of using as label names phrases of the form “type:description”, e.g.:
> 	\label{thm:law-lare-numbers}
> 	\label{eq:prod-of-sums}
> For a book, I’m using, among many other packages, babel and crossreftools. Recently I’ve discovered that the “french” option to babel gives a conflict with mnay commands from crossreftools when label names include colons. (The trouble is caused by babel-french.ldf, where the colon is made an active character along with semicolon, exclamation mark, and question mark.)
> I could replace those colons by hyphens, but then that destroys the visual distinction between the type of object (theorem, equation, etc.) being labeled and the description, including hyphens, of the particular object of that type.
> The colon was, for me, the perfect separator to use, as it nicely separates the two parts of the label names yet is not obtrusive.
> Do you have any recommendation for what character to use —  one that is suitable for the purposes my use of it as author yet is safe in that it is unlikely to be made active by some package and thereby cause the same clash as the colon?
> I considered the vertical bar “|” but am concerned that something could make it active as well as that it is somewhat obtrusive.
> (For reference, please see https://tex.stackexchange.com/questions/511030/another-babel-french-incompatibility-with-crossreftools and the other posts it references.)
> ---
> Murray Eisenberg			murrayeisenberg at gmail.com
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