Sorry for the late response.

In article <E1ICpXt-00033U-DV@fencepost.gnu.org>, Richard Stallman <rms@gnu.org> writes:

> [I sent this message a weeks ago but did not get a response.
> Is this in your area?  I would expect it is, since it deals
> with non-ASCII characters, but maybe it isn't.  If it isn't,
> please say so.

> Please respond!]

> Is this patch correct?  Most particularly, is it correct to use
> buffer-file-coding-system for a URL?  I have doubts about that.

I doubts too.  I'm not the expert of URL (or URI) encoding,
but, as far as I remember, non-ASCII characters in URL must
be at first encoded by UTF-8 then by %-encoding.  So, for
instance, $(D+"(B (U+00E0) must be encoded to "%C3%80".

---
Kenichi Handa
handa@m17n.org

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> To: emacs-devel@gnu.org
> From: William Xu <william.xwl@gmail.com>
> Date: Wed, 04 Jul 2007 18:34:51 +0800
> Organization: the Church of Emacs
> Mime-Version: 1.0
> Content-Type: text/plain; charset=utf-8
> Subject: webjump-url-encode and non-ascii characters

> webjump-url-encode fails to encode non-ascii characters correctly.

> Here's a patch: 

> - --- webjump.el	2007-06-03 14:54:53.000000000 +0800
> +++ webjump.el.new	2007-07-04 18:29:41.000000000 +0800
> @@ -451,14 +451,13 @@
 
>  (defun webjump-url-encode (str)
>    (mapconcat '(lambda (c)
> - -		(cond ((= c 32) "+")
> - -		      ((or (and (>= c ?a) (<= c ?z))
> - -			   (and (>= c ?A) (<= c ?Z))
> - -			   (and (>= c ?0) (<= c ?9)))
> - -		       (char-to-string c))
> - -		      (t (upcase (format "%%%02x" c)))))
> - -	     str
> - -	     ""))
> +               (let ((s (char-to-string c)))
> +                 (cond ((string= s " ") "+")
> +                       ((string-match "[a-zA-Z_.-/]" s) s)
> +                       (t (upcase (format "%%%02x" c))))))
> +             (string-to-list
> +              (encode-coding-string str buffer-file-coding-system))
> +             ""))
 
>  (defun webjump-url-fix (url)
>    (if (webjump-null-or-blank-string-p url)

> - -- 
> William

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