Dear Pavel,

You're definitively right. This 10 years old bug is also mentioned at:
https://rt.cpan.org/Public/Bug/Display.html?id=11172
which seem to have led to writing a new one
http://search.cpan.org/~pmakholm/Encode-IMAPUTF7-1.05/lib/Encode/IMAPUTF7.pm

The fix is easy, remove the two lines containing PLUSPLACEHOLDER

Copied from http://cpansearch.perl.org/src/FABPOT/Unicode-IMAPUtf7-2.01/lib/Unicode/IMAPUtf7.pm

and then fixed with

https://rt.cpan.org/Public/Bug/Display.html?id=11172

sub imap_utf7_decode {
my ( $s ) = shift( @_ ) ;

     # Algorithm
     # On remplace , par / dans les BASE 64 (, entre & et -)
     # On remplace les &, non suivi d'un - par +
     # On remplace les &- par &
     $s =~ s/&([^,&\-]*),([^,\-&]*)\-/&$1\/$2\-/g ;
     $s =~ s/&(?!\-)/\+/g ;
     $s =~ s/&\-/&/g ;
     return( Unicode::String::utf7( $s )->utf8 ) ;

}

This bugfix will be applied in next public release.

Le 17/01/2015 12:13, Pavel Alexeev aka Pahan-Hubbitus a écrit :

Firstly there bug and you by some reason exclude + sign from utf7 string which leads to its mangle. For example in Russian language word project is "проект" what in UTF7-IMAP encoding represent as "&BB8EQAQ+BDUEOgRC-" but imapsync decode it as "ПроBDUEOgRC-"

I have breaffy look at code and by some reason you are especially leave + sign in imap_utf7_decode routine:

sub imap_utf7_decode {
$s =~s/+/PLUSPLACEHOLDER/g ;
$s =~s/&([^,&-]),([^,-&])-/&$1/$2-/g ;
$s =~s/&(?!-)/+/g ;
$s =~s/&-/&/g ;
$s =~s/PLUSPLACEHOLDER/+-/g ;

     return( Unicode::String::utf7($s  )->utf8 ) ;

}

Additionally I want mention, despite /some/ folder names decoded, in many place except folders list it present as is, for example:

|Excluding folders matching pattern 'BAK_test/Ant/INBOX': [BAK_test/Ant/INBOX/&BB8EQAQ+BDEEOwQ1BDwESw- &BD8EPg- &BD4EQgRHBFEEQgQwBDw- &BEEEQAQwBDIEPQQ1BD0EOARP-] [BAK_test/Ant/INBOX/TODO] [BAK_test/
Ant/INBOX/TODO-ANSWER] [BAK_test/Ant/INBOX/TODO/Answer - &BCEEPgQxBD4EOwQ1BDI-]
…
|

—
Reply to this email directly or view it on GitHub #23.

Au revoir, 09 51 84 42 42
Gilles Lamiral. France, Baulon (35580) 06 20 79 76 06

from imapsync.