changing xterm title to mailbox name

[xavier <list.mutt-users@xxxxxxxxxxxxxxxx>]

Hello,

changing mailboxes with mutt can be slow, if you're talking 
about mailboxes with 1000's of messages.

so i open multiples instances of mutt to look at differents folders.
(btw, i'm using maildir with hcache)

now, i've several xterm with a mutt inside.
i'm also using fvwmtabs (http://users.tpg.com.au/users/scottie7/fvwmtabs.html)
for easy switch between xterms.


i've been playing around the possibility of changing the xterm title
with mutt.

looks like mutt can't export arbitrary variables to <shell-escape> commands ?

anyway, i tried something like !echo -n "\033]0;$@\007"

didn't work, it wasn't interpreted.

calling it from a shell maybe ?
(without a macro, didn't worked)


macro index -t "<shell-escape>/usr/bin/zsh xterm_set_title 
debian-bugs-dist.lists.debian.org\n"

(sh didn't work for me)

folder-hook on that :

folder-hook debian-bugs-dist.lists.debian.org "push -t"

now great, i can set it.

but macros aren't longer than 8 chars.


so if i have a macro called -debian-security-lists
and another -debian-security-announnce,

truncating to 8 chars doesn't work.


... md5sum to the rescue !

script shell to generate the macro for each list : 
--------------------
for i in `cat .lists`
do 
listname=`echo $i | sed 's:@.*::g'`
listdomain=`echo $i | sed 's:.*@::g'`
listmd5=`echo $i|md5sum|perl -pe 's/^(\w{7}).*/$1/'`
echo  macro index -$listmd5 \"\<shell-escape\>/usr/bin/zsh  
~/system/bin/xterm_set_title  $listname.$listdomain\\n\"
echo folder-hook $listname.$listdomain \"push -$listmd5\"
echo folder-hook $listname.$listdomain  set wait_key=no
done  > ~/.mutt.lists
--------------------
$ cat ~/system/bin/xterm_set_title         
#!/bin/zsh
echo -n "\033]0;$@\007" 
--------------------

(which means my lists are sorted in mailboxes like mutt-users.mutt.org)



that gives : (for example) 
macro index -26e7fe0 "<shell-escape>/usr/bin/zsh 
/home/xavier/system/bin/xterm_set_title 
spamassassin-talk.lists.sourceforge.net\n"
folder-hook spamassassin-talk.lists.sourceforge.net "push -26e7fe0"


i'd like to know if there a better way to do it ?
performance is ok, but i'm bothered about forking a shell each time i open a new
mailbox


thanks

-- 
xavier