From: Bozhidar Batsov <bozhidar@batsov.com>
To: Dmitry Gutov <dgutov@yandex.ru>
Cc: emacs-devel <emacs-devel@gnu.org>
Subject: Re: Subject: [PATCH] * lisp/progmodes/ruby-mode.el: Set `ruby-insert-encoding-magic-comment' to nil by default.
Date: Wed, 13 Nov 2013 16:36:43 +0200 [thread overview]
Message-ID: <CAM9Zgm1kvx=4q6tSygaBu9ZB+0zeuw1rcjkxiSvoLiFb+XKnOg@mail.gmail.com> (raw)
In-Reply-To: <527B7433.1070101@yandex.ru>
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I've attached here a second patch that adds support for always inserting a
utf-8 encoding comment. I've also simplified a bit the code of
`ruby-mode-set-encoding' (by breaking it into several functions) as it was
quite convoluted.
On 7 November 2013 13:06, Dmitry Gutov <dgutov@yandex.ru> wrote:
> On 07.11.2013 12:23, Bozhidar Batsov wrote:
>
>> Btw, Dimitry - please add some info the ruby-mode.el about running the
>> tests. I tried evaluating and running them manually, but this crashed my
>> Emacs (the tests hogged my CPU completely and I had to kill Emacs).
>> Maybe there is something wrong with them right now, or perhaps they
>> should invoked in some manner I'm not aware of.
>>
>
> I'm not aware of any problems running the tests, looks like a bug. Weren't
> you able to stop the freezing with C-g, at least?
>
> I just open ruby-mode-tests.el, M-x eval-buffer, M-x ert RET.
> They run fine.
>
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From 1768305926bf60084a42ffeca913be32f6ee288e Mon Sep 17 00:00:00 2001
From: Bozhidar Batsov <bozhidar@batsov.com>
Date: Wed, 13 Nov 2013 16:31:59 +0200
Subject: [PATCH] * lisp/progmodes/ruby-mode.el (ruby-mode-set-encoding):
Add support for always inserting an utf-8 encoding comment.
---
lisp/progmodes/ruby-mode.el | 68 ++++++++++++++++++++++++++++-----------------
1 file changed, 42 insertions(+), 26 deletions(-)
diff --git a/lisp/progmodes/ruby-mode.el b/lisp/progmodes/ruby-mode.el
index 87454cd..1e8faf0 100644
--- a/lisp/progmodes/ruby-mode.el
+++ b/lisp/progmodes/ruby-mode.el
@@ -256,7 +256,12 @@ explicitly declared in magic comment."
:group 'ruby)
(defcustom ruby-insert-encoding-magic-comment t
- "Insert a magic Emacs 'coding' comment upon save if this is non-nil."
+ "Insert a magic Emacs 'coding' comment upon save if this is non-nil.
+The encoding will be auto-detected. The format of the encoding comment
+is customizable via `ruby-encoding-magic-comment-style'.
+
+When set to `always-utf8' an utf-8 comment will always be added, even if it's not
+required."
:type 'boolean :group 'ruby)
(defcustom ruby-encoding-magic-comment-style 'ruby
@@ -633,28 +638,47 @@ explicitly declared in magic comment."
(setq-local paragraph-separate paragraph-start)
(setq-local paragraph-ignore-fill-prefix t))
+(defun ruby--insert-coding-comment (encoding)
+ (let ((encoding-magic-comment-template
+ (pcase ruby-encoding-magic-comment-style
+ (`ruby "# coding: %s")
+ (`emacs "# -*- coding: %s -*-")
+ (`custom
+ ruby-custom-encoding-magic-comment-template))))
+ (insert
+ (format encoding-magic-comment-template encoding)
+ "\n")))
+
+(defun ruby--detect-encoding ()
+ (if (eq ruby-insert-encoding-magic-comment 'always-utf8)
+ "utf-8"
+ (let ((coding-system
+ (or save-buffer-coding-system
+ buffer-file-coding-system)))
+ (if coding-system
+ (setq coding-system
+ (or (coding-system-get coding-system 'mime-charset)
+ (coding-system-change-eol-conversion coding-system nil))))
+ (if coding-system
+ (symbol-name
+ (if ruby-use-encoding-map
+ (let ((elt (assq coding-system ruby-encoding-map)))
+ (if elt (cdr elt) coding-system))
+ coding-system))
+ "ascii-8bit"))))
+
+(defun ruby--encoding-comment-required-p ()
+ (or (re-search-forward "[^\0-\177]" nil t)
+ (eq ruby-insert-encoding-magic-comment 'always-utf8)))
+
(defun ruby-mode-set-encoding ()
"Insert a magic comment header with the proper encoding if necessary."
(save-excursion
(widen)
(goto-char (point-min))
- (when (re-search-forward "[^\0-\177]" nil t)
+ (when (ruby--encoding-comment-required-p)
(goto-char (point-min))
- (let ((coding-system
- (or save-buffer-coding-system
- buffer-file-coding-system)))
- (if coding-system
- (setq coding-system
- (or (coding-system-get coding-system 'mime-charset)
- (coding-system-change-eol-conversion coding-system nil))))
- (setq coding-system
- (if coding-system
- (symbol-name
- (if ruby-use-encoding-map
- (let ((elt (assq coding-system ruby-encoding-map)))
- (if elt (cdr elt) coding-system))
- coding-system))
- "ascii-8bit"))
+ (let ((coding-system (ruby--detect-encoding)))
(when coding-system
(if (looking-at "^#!") (beginning-of-line 2))
(cond ((looking-at "\\s *#.*-\*-\\s *\\(en\\)?coding\\s *:\\s *\\([-a-z0-9_]*\\)\\s *\\(;\\|-\*-\\)")
@@ -669,15 +693,7 @@ explicitly declared in magic comment."
(insert coding-system)))
((looking-at "\\s *#.*coding\\s *[:=]"))
(t (when ruby-insert-encoding-magic-comment
- (let ((encoding-magic-comment-template
- (pcase ruby-encoding-magic-comment-style
- (`ruby "# coding: %s")
- (`emacs "# -*- coding: %s -*-")
- (`custom
- ruby-custom-encoding-magic-comment-template))))
- (insert
- (format encoding-magic-comment-template coding-system)
- "\n")))))
+ (ruby--insert-coding-comment coding-system))))
(when (buffer-modified-p)
(basic-save-buffer-1)))))))
--
1.8.4
next prev parent reply other threads:[~2013-11-13 14:36 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-01 12:59 Subject: [PATCH] * lisp/progmodes/ruby-mode.el: Set `ruby-insert-encoding-magic-comment' to nil by default Bozhidar Batsov
2013-11-01 17:46 ` Stefan Monnier
2013-11-01 18:51 ` Bozhidar Batsov
2013-11-02 0:00 ` Dmitry Gutov
2013-11-02 10:38 ` Bozhidar Batsov
2013-11-02 20:15 ` Dmitry Gutov
2013-11-03 7:35 ` Bozhidar Batsov
2013-11-03 9:22 ` Dmitry Gutov
2013-11-04 13:40 ` Bozhidar Batsov
2013-11-06 17:10 ` Bozhidar Batsov
2013-11-06 21:45 ` Dmitry Gutov
2013-11-07 10:23 ` Bozhidar Batsov
2013-11-07 11:06 ` Dmitry Gutov
2013-11-13 14:36 ` Bozhidar Batsov [this message]
2013-11-13 19:19 ` Dmitry Gutov
2013-11-14 9:53 ` Bozhidar Batsov
2013-11-14 13:23 ` Dmitry Gutov
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