From: Wolfgang Schuster <wolfgang.schuster.lists@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Bug with \wordright in LMTX version 2020-08-03 14:25
Date: Wed, 5 Aug 2020 21:15:58 +0200 [thread overview]
Message-ID: <3d5e945e-10e1-d3eb-0c82-0b84cf71511b@gmail.com> (raw)
In-Reply-To: <CACyK-eo4ZN5kx2eriAFynm0s6=23vGEdyBEKfOKFHMDazOG02A@mail.gmail.com>
Fabrice Couvreur schrieb am 05.08.2020 um 19:33:
> Hello,
> I also use a square to complete a demonstration. I tried this without
> success
> Thank you
> Fabrice
>
> \definesymbol[Fin][\mathematics{\square}]
> \def\qed{\strut\wordright{\symbol[Fin]}}
>
> \defineenumeration
> [proof]
> [...,
> closesymbol={\symbol[\qed]}]
1. \symbol is meant to access pre defined symbols, as fallback method
when the requested symbol doesn't exist ConTeXt outputs the argument.
This fallback is in my opinion problematic because it's easy to miss it.
\starttext
\symbol[square]
\symbol[quadrat]
\stoptext
2. When you use the closesymbol for a enumeration ConTeXt uses also the
argument of the closecommand to apply something to the symbol, by
default the argument to the closecommand key is \wordright.
This means you're putting \wordright (which itself is flushed as symbol)
within \wordright which has to fail at some point.
Below is a cleaner version to put a symbol at the end of each proof. The
\blank setting in the \PlaceProofSymbol definition moves the symbol back
in the math formula to avoid the vertical space between them, you can
remove it but I would at leas use \blank[back] to get rid of the empty
line between the formula and the symbol.
\define[1]\PlaceProofSymbol
{\blank[back,overlay]%
\dontleavehmode\wordright{#1}}
\defineenumeration
[proof]
[ closesymbol={\symbol[square]},
closecommand=\PlaceProofSymbol]
\starttext
\startproof
\startformula
a^2 + b^2 = c^2
\stopformula
\stopproof
\stoptext
Wolfgang
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next prev parent reply other threads:[~2020-08-05 19:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-03 20:10 Otared Kavian
2020-08-04 7:06 ` Hans Hagen
[not found] ` <D707379C-DC0F-4EEA-9332-B98531BFD02E@gmail.com>
[not found] ` <da525156-014d-a587-c2be-abb70ae090f4@xs4all.nl>
2020-08-04 12:02 ` Otared Kavian
2020-08-05 17:33 ` Fabrice Couvreur
2020-08-05 19:15 ` Wolfgang Schuster [this message]
2020-08-08 13:39 ` Defining \qed (was: Bug with \wordright...) Otared Kavian
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