Re: Encoding/decoding problems

[Deniz Dogan <deniz@dogan.se>]

On 2011-07-28 11:01, Eli Zaretskii wrote:
>> Date: Thu, 28 Jul 2011 10:18:04 +0200
>> From: Deniz Dogan<deniz@dogan.se>
>>
>> I'm fetching an XML document that's uses iso-8859-1 coding with
>> `url-retrieve' and then I parse it using `xml-parse-region'.
>>
>> After that, I get the parts of the document that I want and insert them
>> into a buffer.  However, the Swedish characters å, ä and ö are displayed
>> as \345, \344 and \326 respectively.
>>
>> I've tried messing around with `encode-coding-region' and
>> `decode-coding-region' but I'm really not sure what to do here.
>
> I suggest to start with describing a reproducible recipe for this
> problem.  Not sure if this forum is appropriate, perhaps emacs-devel
> is a better place (as it sounds like you are describing a bug).
>

Here is the code to reproduce it:

(defun fetch-and-show ()
   (interactive)
   (let* ((old-buffer (current-buffer))
          (url "http://dogan.se/sites/default/files/example.xml")
          (buffer (url-retrieve-synchronously url)))
     (with-current-buffer buffer
       (let ((doc (car (xml-parse-region (point-min) (point-max)))))
         (with-current-buffer old-buffer
           (insert
            (nth 2 (nth 2 (nth 3 doc)))))))))

The XML file is encoded in iso-8859-1 with a bunch of Swedish characters 
here and there.  The buffer I'm testing this with is *scratch* with 
utf-8-unix.  It should insert "hallå" but inserts "hall\345".

I have no idea whether I should use `encode-region-string' or 
`decode-region-string' or what.  I'd doubt it's a bug to be honest, it's 
probably my lack of understanding that's causing this.

Deniz