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From: Max Nikulin <manikulin@gmail.com>
To: emacs-orgmode@gnu.org
Subject: Re: [PATCH] Add support for $…$ latex fragments followed by a dash
Date: Tue, 1 Feb 2022 21:26:50 +0700	[thread overview]
Message-ID: <stbfvc$3rs$1@ciao.gmane.io> (raw)
In-Reply-To: <st6ar8$tjk$1@ciao.gmane.io>

manual states:
> 
>> Text within the usual LaTeX math delimiters. To avoid conflicts with
>> currency specifications, single ‘$’ characters are only recognized as
>> math delimiters if the enclosed text contains at most two line breaks,
>> is directly attached to the ‘$’ characters with no whitespace in
>> between, and if the closing ‘$’ is followed by whitespace, punctuation
>> or a dash. For the other delimiters, there is no such restriction, so
>       ^^^^^^
>> when in doubt, use ‘\(...\)’ as inline math delimiters.

It is even more interesting. Support of dash likely was unintentionally 
lost in the following commit:
https://git.savannah.gnu.org/cgit/emacs/org-mode.git/commit/?id=6779f8f424883ffd202e24cbd8bb4e241db294b0
that generalizes handling of punctuation, unfortunately dash and 
apostrophe are not always belong to punctuation symbols in *text* modes. 
That commit even updates manual to a less precise phrase, however .texi 
file only, so the change was lost. Nicolas later restored apostrophe in 
the commit c0369a798470763f8f3c69cf2079c3a194635feb

> False positive with the proposed patch:
> 
>  > Balance decreased from $10 to negative value ($-2 approximately)
> 
> certainly it is more rare than $n$-th valid case.
> 
>> Tim, as mentioned before I’m strongly in favour of a ~half decade 
>> transition

Half of decade already passed since dash after currency symbol was 
broken so maybe it is better to fix current state by updating the manual 
(including bugfix branch) and by adding some tests.

P.S. It is deja vu, I almost certainly saw quite recent discussions 
whether punctuation may be handled in some regexps in more generic way. 
Consequences may be similar in respect to characters that are almost 
punctuation...



  reply	other threads:[~2022-02-01 16:06 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-24 16:42 Sébastien Miquel
2022-01-25  7:56 ` Eric S Fraga
2022-01-25 10:32   ` Sébastien Miquel
2022-01-26 17:15   ` Rudolf Adamkovič
2022-01-27  8:28     ` Ihor Radchenko
2022-01-27 19:15       ` Tim Cross
2022-01-28 14:37         ` Max Nikulin
2022-01-28 16:37           ` Timothy
2022-01-30 15:28             ` Max Nikulin
2022-02-01 14:26               ` Max Nikulin [this message]
2022-01-27 19:34       ` Sébastien Miquel
2022-02-01 21:00       ` Rudolf Adamkovič
2022-02-02  2:48         ` João Pedro de Amorim Paula
2022-02-06 19:45           ` Rudolf Adamkovič
2022-02-07  0:00             ` Tim Cross
2022-01-26  6:33 ` Tom Gillespie
2022-01-26 17:49   ` Sébastien Miquel
2022-01-26 21:49     ` Tom Gillespie
2022-01-27 19:11       ` Sébastien Miquel
2022-01-25 18:09 Goran Zuzic
2022-01-27 18:54 autofrettage

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