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bug#7814: Fwd: debugger entered on c-electric-paren
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From: |
Alan Mackenzie |
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Subject: |
bug#7814: Fwd: debugger entered on c-electric-paren |
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Date: |
Wed, 12 Jan 2011 19:35:22 +0000 |
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User-agent: |
Mutt/1.5.9i |
Hi, Adam,
thanks for the bug report!
On Mon, Jan 10, 2011 at 06:45:08AM -0500, Adam Fineman wrote:
> As you'll see in the forwarded message below, I originally filed this bug
> with the nxhtml team, and they asked me to file it against Emacs.
> Entering the same file as below, I still see a backtrace at the same place,
> although the trace is slightly different:
> ------------------------
> Debugger entered--Lisp error: (wrong-type-argument listp set-from-style)
> c-electric-paren(nil)
> call-interactively(c-electric-paren nil nil)
> ------------------------
The value `set-from-style' is the uninitialised "global" value that
CC Mode gives certain variables ("style variables"). That a buffer's
copy of a variable still contains that value implies that nxhtml-mode has
failed to initialise CC Mode properly.
> This is the version of nxhtml that I installed:
> http://ourcomments.org/Emacs/DL/elisp/nxhtml/zip/nxhtml-2.08-100425.zip
I've downloaded that and grepped it. There are no CC Mode initialisation
calls in php-mode.el. For comparison, there are three such calls in
csharp-mode.el, namely:
(c-initialize-cc-mode t)
(c-init-language-vars csharp-mode)
(c-common-init 'csharp-mode)
C#'s initialisation is probably correct, and could serve as a model for
PHP Mode. In particular the call to `c-common-init' is the essential
one.
I don't have an account on Launchpad, and I really don't want to "read
the guide" or "take a tour" (I've got bugs to fix ;-), so I won't be
contributing to the bug's progress on Launchpad. If nxhtml-mode's
maintainer wants to contact me, I'd be happy for him/her to email me
personally or on the CC Mode mailing list at bug-cc-mode@gnu.org.
Thanks once again for taking the trouble to submit such a clear bug
report.
> - Adam
> ---------- Forwarded message ----------
> From: Adam Fineman <663041@bugs.launchpad.net>
> Date: Mon, Oct 18, 2010 at 8:36 PM
> Subject: [Bug 663041] [NEW] debugger entered on c-electric-paren
> To: afineman@afineman.com
> I open a new file '/tmp/foo.php' and start typing the following:
> =============
> <html>
> <head>
> <title>foo</title>
> </head>
> <body>
> <?php var_dump(
> =============
> As soon as I type the '(' character, I get a backtrace:
> ===========
> Debugger entered--Lisp error: (wrong-type-argument listp set-from-style)
> c-electric-paren(nil)
> call-interactively(c-electric-paren)
> ===========
> This is a clean build of emacs-23.2, on Ubuntu Server 8.04.4.
--
Alan Mackenzie (Nuremberg, Germany).
Maintainer of CC Mode.