[imp] Chinese folder name display problem

[David Chang]

¤Þ¥Î Jan Schneider <jan at horde.org>: 

> Quoting David Chang <david at thbuo.gov.tw>: 
> 
> > ¤Þ¥Î Jan Schneider <jan at horde.org>: 
> > 
> > > So why don't you enable the utf support? This is a great step forward 
> > > especially for all users with "non-standard" charsets. Why don't you 
> > use 
> > > this feature? 
> > > 
> > > The iconv extension can't handle utf7-imap charsets and the mbstring 
> > > extension can't handle Big5 and Cyrillic charsets, so we can't convert 
> > > between them. UTF-8 if working perfectly. 
> > > 
> > > Jan. 
> > > 
> > 
> > Enable UTF-8 will have more problems (compare with disable UTF-8)such as 
> > : 
> > 1.Date field display problem in mailbox 
> > see http://210.241.49.67/~txg16/tmp/wrong_mailbox.jpg 
> 
> Fixed in CVS. 
> 
> > 2.Calendar's name,Notepad's name & Task Lists's name did not display 
> > correctly 
> > see http://210.241.49.67/~txg16/tmp/wrong_name.jpg 
> 
> Works fine here. At least if you create the the calendars with utf support 
> enabled. See my attached screenshot. 
> 
> > 3.Some of mail's subject or From did not display correctly 
> > see http://210.241.49.67/~txg16/tmp/wrong_subject.jpg 
> > and eml file http://210.241.49.67/~txg16/tmp/wrong_subject.eml 
> > 
> > 4.Some of mail's text did not display correctly 
> > see http://210.241.49.67/~txg16/tmp/wrong_text.jpg 
> > and eml file http://210.241.49.67/~txg16/tmp/wrong_text.eml 
> 
> Both messages are invalid encoded. They have no charset information in the 
> header resp. in the body. That's why they are displayed "as is", the only 
> valid option for every mail client. 

Is it possible to rewrite all that headers  with deafult charset ,if  none valid charset-encoded specified in FROM or SUBJECT or BODY header ,for all incoming mails in IMP .

David Chang