GNU bug report logs -
#5033
23.1; antlr-mode: antlr-indent-command broken for long grammars
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Reported by: Mr Kludge <mrkludge <at> gmail.com>
Date: Tue, 24 Nov 2009 15:05:04 UTC
Severity: normal
Done: Stefan Kangas <stefan <at> marxist.se>
Bug is archived. No further changes may be made.
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Your bug report
#5033: 23.1; antlr-mode: antlr-indent-command broken for long grammars
which was filed against the emacs package, has been closed.
The explanation is attached below, along with your original report.
If you require more details, please reply to 5033 <at> debbugs.gnu.org.
--
5033: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=5033
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems
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Andrew Hyatt <ahyatt <at> gmail.com> writes:
> I cannot reproduce this on Emacs 25. I loaded the provided silly.g, set
> the antrl-slow-cache-diff-threshold to 0, and indented each line without
> any issues, at many different points on the line.
>
> Someone can let me know if they can still reproduce this, otherwise I'll
> close this out.
It was never closed at the time, 3 years ago, so I'm closing this now.
If anyone can still reproduce this, please reopen the bug report.
Best regards,
Stefan Kangas
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Hello,
I am running into an antlr-mode bug when indenting long grammars.
Specifically, when the point in the grammar is higher than
antlr-slow-cache-diff-threshold indenting a grammar rule fails in
calling c-where-wrt-brace-construct through beginning-of-defun.
To trigger:
Write a longinsh grammar (more than 5k chars with the default setting)
or simply set antlr-slow-cache-diff-threshold to 0 and then try to
indent in a grammar rule.
See attached silly.g for an example.
Indentation breaks, with the following error:
c-where-wrt-brace-construct: c-beginning-of-decl-1 returned label
Backtrace:
c-where-wrt-brace-construct()
c-beginning-of-defun(1)
funcall(c-beginning-of-defun 1)
beginning-of-defun-raw(nil)
ad-Orig-beginning-of-defun(nil)
beginning-of-defun()
antlr-syntactic-context()
antlr-indent-line()
antlr-indent-command(nil)
call-interactively(antlr-indent-command nil nil)
Solution:
A simple solution (kludge) is to modify antlr-syntactic-context to not call
beginning-of-defun in antlr-mode.el.
See attached patch.
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[antlr-mode.el.patch (application/octet-stream, attachment)]
[silly.g (application/octet-stream, attachment)]
This bug report was last modified 5 years and 237 days ago.
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