UTF7 - UTF8 folder encoding errors

Eric Liang ericliang2 at gmail.com
Thu Aug 10 12:07:29 CEST 2006

Also, browsing the SVN changes I noticed you fixed the search issue (file:
$imap_charset = 'UTF-8'; ). I have spotted it 3-4 days ago but did not
report as I considered it minor in comparison to folders issue.

I now report that searching works nicely on non EN charset I've tested with
(rev 303 did not). I would advise other people to check also with their own
non EN charsets.

Thanks again,

On 8/10/06, Eric Liang <ericliang2 at gmail.com> wrote:
> First of all, thank you for this. It made things better. New comments are
> inline.
>  On 8/10/06, Thomas Bruederli <roundcube at gmail.com> wrote:
> >
> > IMP uses the PHP integrated IMAP functions and as far as I could see
> > do thex handle the charset conversion internally.
>  I don't know - I have just tested IMP and Group-Office lately and they
> both seem to treat folders nicely from a user's point of view. I am not that
> familiar with how they do it.
> I just committed some changes that should solve these problems. It
> > works well with my mailbox but I only use ISO characters. Please
> > checkout the latest revision and test it with your environment.
>  These are the results:
> 1) In folders list the multibyte characters are cut (... is put in the
> middle of the string) incorrectly. This happened before, I just didn't
> mention it to the dev list until now. This means that the PHP function
> should check the length of string as multibyte and cut it as such. Currently
> I have folders that have AAA?...AAAAA (where AAA=multibyte chars). The
> question mark (?) is shown because the second byte of the character is cut
> so it's substituted by ? (therefore I assume that the PHP fuctions do not
> treat this string as multibyte before checking/converting/minimizing
> length). There are multibyte folder name with real length of 8 chars that
> are cut and English folders that are 10 or more and are not cut. So perhaps
> this behaviour should be examined.
> 2) When I use English GB language the folders work nicely. They used to
> work nicely on the folder list (ie show), now the create/rename folder works
> flawlessly too (big thanks).
> But when I use another language, for example Spanish, things get messed
> up, just like in the past. Let me know if I am allowed to send you
> screenshots (via personal email) to show what happens when charset is not
> ISO-8859-1, or perhaps a login account on such a mailbox.
> Results (for non English charset):
> Create folder -> "error occured while creating folder" or similar error in
> the translated language
> View folder -> strange charset conversion (or no conversion at all?)
> is shown instead of the normal folder
> Rename folder -> "error occured while creating folder" or similar error in
> the translated language
> I have noticed that the erratic folder behavior happens when I use
> specific languages like
> Slovak, Polski, Greek, Espanol, Arabic etc but not on Japanese, Russian,
> English (it works fine on those showing always the correct folder names as
> intended)
> I can only assume it has to do with internal PHP charset conversions that
> only support some charsets and not others? Like what happens with
> html_entity_decode that supports only _some_ charsets:
> http://nl2.php.net/manual/en/function.html-entity-decode.php
> Finally, I am using PHP 4.4.x branch to test.
> Let me know how I can help further to solve this.
> Your support is very much appreciated,
> Eric
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