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From: Dmitry Gutov <dgutov@yandex.ru>
To: Alan Mackenzie <acm@muc.de>
Cc: 18826@debbugs.gnu.org
Subject: bug#18826: 24.3.94; c++-mode bad indentation after programmatic insert with locally	changed syntax table
Date: Sun, 26 Oct 2014 05:45:42 +0700	[thread overview]
Message-ID: <544C2816.8070704@yandex.ru> (raw)
In-Reply-To: <20141025193441.10278.qmail@mail.muc.de>

On 10/26/2014 02:34 AM, Alan Mackenzie wrote:

> Why do you think it should be harmless?

Because the syntax table change is temporary and its effect should be 
limited to my code?

> .  The c-in-sws and c-is-sws indicate that the semicolon has been
> recognised and marked as syntactic whitespace.  The second line thus gets
> parsed as "statement-cont", i.e. a continued statement, so it gets
> indented an extra level.

Yes, I see that. But how does this happen?

> If you cripple C++ Mode by substituting a wrong syntax table, you
> shouldn't be too surprised when things go "wrong".  This seems like one of
> these "well, don't do that, then" bugs.
>
> Question: why do you want to play around with the syntax table in this
> manner?  What are you trying to achieve?

I'm using a different syntax table for sexp movement, where it's 
necessary for both parens and angle brackets to have paren syntax class. 
In the actual code I modify the text after it's inserted, and 
`backward-sexp' is used two times to find necessary search bounds.

https://github.com/company-mode/company-mode/blob/42012730da15ffaef7c61722475040babed15332/company-template.el#L155-L173





  reply	other threads:[~2014-10-25 22:45 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-25 14:25 bug#18826: 24.3.94; c++-mode bad indentation after programmatic insert with locally changed syntax table Dmitry Gutov
     [not found] ` <mailman.12024.1414247237.1147.bug-gnu-emacs@gnu.org>
2014-10-25 19:34   ` Alan Mackenzie
2014-10-25 22:45     ` Dmitry Gutov [this message]
     [not found] ` <mailman.12048.1414277182.1147.bug-gnu-emacs@gnu.org>
2014-10-25 23:24   ` Alan Mackenzie
2014-10-26 15:09     ` Dmitry Gutov
2014-10-26 17:07       ` Stefan Monnier
2014-10-25 23:25 ` Stefan Monnier
     [not found] ` <jwv61f7ohq0.fsf-monnier+emacsbugs@gnu.org>
2014-10-26 14:56   ` Dmitry Gutov
2014-10-26 14:56   ` Dmitry Gutov
2014-10-26 17:03     ` Stefan Monnier
     [not found] ` <mailman.12080.1414336227.1147.bug-gnu-emacs@gnu.org>
2014-10-26 17:38   ` Alan Mackenzie
2014-10-27  1:06     ` Dmitry Gutov
2014-10-27  8:53       ` Alan Mackenzie
2014-10-27 10:21         ` Dmitry Gutov

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