On 9/1/15 6:46 PM, Helmut Karlowski wrote:
> Do you refer to the table titled "Circumflex Control Characters in stty"?
>
> It states for example:
>
> ? <DEL>
Yeah, that's a problem. I've fixed that.
>
> Running:
>
> echo $'\c?' |od -a
> echo $'\c[\c\\c]\c^\c_\c?' |od -a
>
> bash prints:
>
> 0000000 us nl
> 0000002
> 0000000 esc fs c ] rs us us nl
>
> I'd expect:
>
> 0000000 del nl
> 0000002
> 0000000 esc fs gs rs us del nl
>
> Also the ] in the output seems wrong, looks it gets the \\ wrong, though
> ksh93 does this also.
The Posix standardization of $'...' requires that the character after the
`\c' honor backslash escaping. Since the character becomes \c\\, the
subsequent `c' and `]' are literals.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU c...@case.edu http://cnswww.cns.cwru.edu/~chet/
