From: Glenn Morris <rgm@gnu.org>
To: Will Parsons <wbparsons@cshore.com>
Cc: 3354@emacsbugs.donarmstrong.com
Subject: bug#3354: tcl-mode regression in Emacs 22
Date: Wed, 03 Jun 2009 20:28:39 -0400 [thread overview]
Message-ID: <r1skigvo3s.fsf@fencepost.gnu.org> (raw)
In-Reply-To: 20090523.135622.258140755.wbparsons@cshore.com
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Will Parsons wrote:
> The following valid Tcl script is recognized automatically as Tcl mode
> under Emacs 21 but as shell mode under Emacs 22:
>
> ------
> isis% cat test.tcl
> #!/bin/sh
> #\
> exec tclsh "$0" ${1+"$@"}
> puts test
[...]
> Using a shebang of "#!/bin/tclsh" is not portable, since tclsh may be
> installed elsewhere (typically /usr/local/bin).
#!/usr/bin/env tclsh
(and give it whatever extension you like.)
But this has problems for argument passing.
> I am aware that "-*-" can be used to force recognition of Tcl mode,
> but this should not be necessary if the script has a ".tcl"
> extension, and in fact it is not necessary in versions of Emacs
> prior to version 22, so the current behaviour is a regression.
It's a change.
> If for some reason a decision was made to have the shebang override
> the extension to determine the mode, then there should be an easy
> way of getting back the previous behaviour, *without* having to add
> instructions to Emacs to the script files themselves.
(setq interpreter-mode-alist
(delete (assoc "sh" interpreter-mode-alist)
interpreter-mode-alist))
(but #!/bin/sh scripts without filename extensions, which are
numerous, will no longer be opened in sh-mode).
I don't know what the reason is for giving interpreter-mode-alist the
highest priority (above magic-mode-alist as well). The only reference
I can find is:
http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-10/msg00215.html
which just says "I feel this [the old behaviour] to be wrong", with no
examples.
next prev parent reply other threads:[~2009-06-04 0:28 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-23 17:56 bug#3354: tcl-mode regression in Emacs 22 Will Parsons
2009-06-04 0:28 ` Glenn Morris [this message]
2009-06-04 0:35 ` Processed: " Emacs bug Tracking System
2009-06-04 0:56 ` Glenn Morris
2009-06-04 2:41 ` Jason Rumney
2009-06-04 4:04 ` Glenn Morris
2009-06-04 5:14 ` Jason Rumney
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