graphic chars, set-font and sed

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Hi,
I've got a few problem with semigraphic chars (those used tipically in dos or 
in ncurses applications) under linux. Firs of all, if I use the setfont 
command on a tty I can see files with the above characters listed well, but I 
cannot do this on pseudo-tty (like those opened thru telnet or ssh). Any 
trick for this? Second, I've noticed that sed regular expressions get 
confused by the presence of multiple semigraphic chars, while a single one 
seems to work ok. Does anybody knows a way to "escape" those chars, in order 
to make them understandable to sed and other programs?

Thanks,
Luca
-- 
Luca Ferrari,
fluca1978@xxxxxxxxxxx
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