[tex-live] why is VT (ascii 11) apparently "printable" with pdftex?

[jfbu]

Hi Karl,

Le 7 nov. 2017 à 00:38, Karl Berry <karl at freefriends.org> a écrit :

>    One can use -8bit option, then all are printable, the question is why
>    is VT printable by default ? 
> 
> It seems Thomas Esser suggested making VT printable by default, along
> with HT FF SP, back in 2004. That seems to be when we invented
> cp227.tcx (read from fmtutil.cnf). I think he just figured vertical tab
> should be printable if horizontal tab was, but I don't really know.
> 
> At any rate, I'm not inclined to change it again at this late date. -k
> 
> 

Thanks! Something looks weird in the
comments of cp227.tcx file:

0x09   0x09  % HT
0x0a   0x0a  % VT
0x0b   0x0b  % FF

it should be

0x09   0x09  % HT
0x0a   0x0a  % LF
0x0b   0x0b  % VT

right ?

(FF being 0x0c)

Best,

Jean-François