From: Hans Hagen <pragma@wxs.nl>
To: ntg-context@ntg.nl
Subject: Re: Incompatibility catcodes of characters in ConTeXt and PlainTeX
Date: Fri, 27 Feb 2015 19:04:41 +0100 [thread overview]
Message-ID: <54F0B1B9.1000206@wxs.nl> (raw)
In-Reply-To: <54F0A126.8010901@gyza.cz>
On 2/27/2015 5:53 PM, Jaroslav Hajtmar wrote:
> Hello ConTeXist.
> Petr Olsak (maintainer of Czech/Slovak support for TeX) helped me with
> simple typing of sign charts. He made a PlainTeX macro who is working
> too in ConTeXt (see
> http://tex.stackexchange.com/questions/230273/typing-of-math-sign-charts).
>
> Petr Olsak (not ConTeXt even LaTeX user) was modified PlainTeX macro to
> work in ConTeXt and asked the question:
> "Does anybody know why ConTeXt sets catcode of & to 12? This means that
> it is incompatible with plain TeX".
Which is imo no big deal.
> May I therefore ask , what is the reason that has character & catcode
> other than in Knuth PlainTeX?
> There are catcodes of other characters incompatible?
Because the context table mechanisms don't use & (and never used it) so
ther ei sno reason to make & special. The _ and ^ are also normal
characters. For now we keep the $ for math (and in math mode the & ^ _
work as expected).
Although we're to some extend plain compatible it's not our aim, just
like we're not amstex, latex, lamstex or anytex compatible.
Hans
-----------------------------------------------------------------
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
| www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
next prev parent reply other threads:[~2015-02-27 18:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-27 16:53 Jaroslav Hajtmar
2015-02-27 18:04 ` Hans Hagen [this message]
2015-03-01 6:24 ` Jaroslav Hajtmar
2015-03-01 10:05 ` Hans Hagen
2015-03-01 14:43 ` Jaroslav Hajtmar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=54F0B1B9.1000206@wxs.nl \
--to=pragma@wxs.nl \
--cc=ntg-context@ntg.nl \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).