We already have \-processing, though output functions like putstr strip
them.
Careful ... how that's implemented is a bit wonky.
Technically \-processing doesn't happen in the format code; it
happens in a function called new_fs() (sbr/fmt_new.c). Well,
new_fs() calls normalize(), but you get the idea. My point is that
by the time fmt_compile() is called all of the \-escapes have been
processed, so fmt_compile() doesn't "see" them.
$ scan -format '%(lit a\tb\bc)' last | cat -A
a b c$
$
How about adding \x1b to that with a new zputstr function that doesn't
adjust column or filter the string.
We already have putlit that doesn't do the whitespace compression, so I
think zputlit makes more sense.
--Ken
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