MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
References: <48D22952.9000204@morningstar2.co.uk>
Message-ID:  <27990a880809180405v7d5b816fk93b12cd51c6f442e@mail.gmail.com>
Date:         Thu, 18 Sep 2008 20:35:13 +0930
Reply-To: Mailing list for the LaTeX3 project
              <LATEX-L@LISTSERV.UNI-HEIDELBERG.DE>
Sender: Mailing list for the LaTeX3 project <LATEX-L@LISTSERV.UNI-HEIDELBERG.DE>
From: Will Robertson <wspr81@GMAIL.COM>
Subject: Re: \char_set_catcode:nn
To: LATEX-L@LISTSERV.UNI-HEIDELBERG.DE
In-Reply-To:  <48D22952.9000204@morningstar2.co.uk>
Precedence: list
Status: R

On Thu, Sep 18, 2008 at 7:41 PM, Joseph Wright
<joseph.wright@morningstar2.co.uk> wrote:
>
> I was wondering about \char_set_catcode:nn.  The docs don't say if the
> character has to be escaped or not, although I assume it does.

You're right that should be documented better. Right now this command
is equivalent to
  \catcode #1 = \numexpr #1\relax

Not that you're going to be using the \numexpr very often!!

So it's actually looked for a number for its first argument. So I
don't see why the next sentence (of the docs) says to use the :w form
if you're using braces!

I guess we need to write another function that does a `\csname
#1\endcsname --type thing (if that's robust enough) under the name
\char_set_catcode:Nn.

> Also, any plans to have any shortcuts of the \@makeother type?

Well, depends what you have in mind :)
I don't see why not...something like \char_set_catcode_other, I
suppose. I actually quite like ConTeXt's approach (what little I know)
of giving names to the catcode classes. So perhaps instead of the
above, we could write
  \char_set_catcode:nn {`\%} {\g_catcode_other}

Nah, actually. I prefer
  \char_set_catcode_other:n {`\%}

Will