From: Hans Hagen <pragma@wxs.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Math letters in commands
Date: Mon, 12 Sep 2016 21:45:01 +0200 [thread overview]
Message-ID: <7e855664-30cc-67a0-fd46-2a9f744666d9@wxs.nl> (raw)
In-Reply-To: <201FCE6F-7493-411A-A385-666BE69BB2E4@telia.com>
On 9/12/2016 8:25 PM, Hans Åberg wrote:
> Found a workaround: The idea is to use \csname …\endcsname with two delimiters not likely to be used in math mode, below chosen to ‘…’.
>
> But then there seems to be a bug in the LuaTex \letcharcode command: There must be a character between “$” and the first occurring \activecatcode letter. Possibly this also causes a bug in \startformula, as discussed before.
it's not a bug .. tex looks ahead for a second $ and in the process
expands the next token which happens to be a letter at that point so it
gets injected as letter (it's the way tex works)
\appendtoks
\catcode`𝐝\lettercatcode
\catcode`𝐢\lettercatcode
\catcode`𝐦\lettercatcode
\to \everymathematics
\definemathcommand[𝐝𝐢𝐦][nolop]{\mfunction{𝐦𝐢𝐝}}
\starttext
Note that $ \𝐝𝐢𝐦 𝑉 = 𝖫$, although $\dim 𝑉 = 4$.
And a bug: $\𝐝𝐢𝐦 𝑉$.
\stoptext
fwiw, the current beta makes math characters also letters now
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next prev parent reply other threads:[~2016-09-12 19:45 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-11 20:48 Hans Åberg
2016-09-12 18:25 ` Hans Åberg
2016-09-12 19:45 ` Hans Hagen [this message]
2016-09-12 20:02 ` Hans Åberg
2016-09-13 5:57 ` Hans Hagen
2016-09-13 8:16 ` Hans Åberg
2016-09-13 8:27 ` Hans Åberg
2016-09-12 20:09 ` Hans Åberg
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