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From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: Dmitry Gutov <dgutov@yandex.ru>
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 13:03:44 -0400	[thread overview]
Message-ID: <jwvioj6n4s7.fsf-monnier+emacsbugs__29520.7505384044$1414343078$gmane$org@gnu.org> (raw)
In-Reply-To: <544D0BA5.7010400@yandex.ru> (Dmitry Gutov's message of "Sun, 26 Oct 2014 21:56:37 +0700")

>>> (with-syntax-table (make-char-table 'syntax-table nil)
>>> (modify-syntax-entry ?\( "(")
>>> (modify-syntax-entry ?\) ")")
>>> (modify-syntax-entry ?< "(")
>>> (modify-syntax-entry ?> ")")
>>> (insert "fgets(0, 1, 2)"))
>> 
>> Why do that?

> To include angle brackets in paren syntax class.

But `insert' doesn't use that temporary syntax-table (aside from
indirect use in before/after-change-functions, obviously).  So why use
`with-syntax-table' around a call to `insert'?

> It seems that I should only change the current syntax table only
> around the `backward-sexp' and `parse-partial-sexp' calls there, but
> not when doing any text modification.

Yes.  And even then, this should not be necessary since the major mode
already does it (or should do it) for you.


        Stefan





  reply	other threads:[~2014-10-26 17:03 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
     [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 [this message]
     [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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