Re: with pgnus 0.55 and 0.56 i'm unable to see text in russian

[Shenghuo ZHU <zsh@cs.rochester.edu>]

>>>>> "VVV" == Vladimir Volovich <vvv@vvv.vsu.ru> writes:

VVV> Hi,
VVV> as i reported some time before, pgnus 0.55 broke displaying of
VVV> articles in russian. 0.54 worked fine. here is what happens:

VVV> (1) in nnmbox, russian articles with C-T-E=8bit are displayed Ok

VVV> (2) in nnmbox, russian articles with C-T-E=QP are displayed buggy
VVV>     (\214<8-bit-char>)

VVV> (3) in nnmbox, russian multipart/alternative articles which have html
VVV>     part with C-T-E=QP (which are rendered with w3), are displayed Ok
VVV>     (i.e. russian characters look fine) except that background color
VVV>     is only at positions with letters; empty lines and space at the
VVV>     end of lines is not colored with background color, but this is
VVV>     another issue.

VVV> (4) in nntp newsgroups, i see latin1 instead of koi8-r 8-bit articles
VVV>     without C-T-E (regardless of setting of mm-default-coding-system
VVV>     to 'koi8)

VVV> Some observations: i tried to debug the function mm-display-inline;
VVV> and in pgnus-0.55 the text which finally appears in the *Article*
VVV> buffer gets corrupted when the function mm-encode-coding-region is
VVV> called (before that, the *Article* buffer already contains russian
VVV> text properly encoded, so this is the second encoding which breaks
VVV> things).

I can not reproduce the bug in Emacs 20.3. 

I guess the problem is that "quoted-printable-decode-region" runs in a
non-"unibyte" buffer. To verify, do the following steps,

1. set breakpoint at quoted-printable-decode-region;
2. select a QP Russian article;
3. run quoted-printable-decode-region by pressing "c" in *Backtrace*;
4. check whether Russian characters are shown in *Article <blah>* 
   buffer

If true, the bug is "quoted-printable-decode-region" runs in a
non-"unibyte" buffer.

BTW, what is difference between koi8-r and koi8? In XEmacs, XEmacs
20.4 can not show Russian characters in koi8-r article.

-- 
Shenghuo