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bug#880: 23.0.60; c-mode indentation and php
From: |
Alan Mackenzie |
Subject: |
bug#880: 23.0.60; c-mode indentation and php |
Date: |
Thu, 4 Sep 2008 08:33:17 +0000 |
User-agent: |
Mutt/1.5.9i |
Hi, Lennart,
On Wed, Sep 03, 2008 at 11:34:04PM +0200, Lennart Borgman (gmail) wrote:
> In php-mode.el (not yet a part of Emacs, but has been discussed for
> inclusion) c-indent-line is used for indentation.
UUURRRKKK!!!
> That works nicely for the php code part of a php template page, but
> there is a disturbing glitch that probably can be fixed.
> Constructs like the one below are rather common.
> if (1) {
> ?>
> ...
> <?php
> }
> If you try to indent the line with the single "}" in c-mode it does not
> get aligned with "if (1) {". I have narrowed this down to
> if (1) {
> ?php
> }
> Adding a semicolon after "?php" makes everything work.
Without the semicolon, the close brace is on a "statement continued"
(statement-cont) line.
> Is the current indentation behaviour in this case useful in some way?
Yes. I'm characterising your "in this case" as "after a line lacking ;
or }". It's essential to normal C indentation. E.g.:
a = b + c // no semicolon
+ d ; // statement-cont (use C-s C-c) gets more indentation.
> Is there some option to change it?
Yes. Write a PHP-specific function to determine whether a line ends with
a "virtual semicolon", and set `c-at-vsemi-p-fn' to this function. This
mechanism is used for AWK Mode, and is described in detail in cc-defs.el
(search for "virtual").
> The example came from a bug report/question for nXhtml:
> https://answers.launchpad.net/nxhtml/+question/43320
> In GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600)
> of 2008-09-03
> Windowing system distributor `Microsoft Corp.', version 5.1.2600
> configured using `configure --with-gcc (3.4) --no-opt --cflags
> -Ic:/g/include -fno-crossjumping'
--
Alan Mackenzie (Nuremberg, Germany).