SHL LAYERS

[simon at its63b.UUCP]

In article <12099 at sun.uucp> guy at sun.UUCP (Guy Harris) writes:
>>I have to wonder why AT&T bothered with layering if it wasn't worth the
>>trouble of modifying a shell to use it.  Perhaps one day the Korn shell
>>will use it.
>
>There is code in the Korn shell that looks like it was intended to do
>this; whether it works or not, I don't know.

In fact, the extra code in ksh is not really this at all - it just
implements a slightly modified version of shl to run under (as in "below")
ksh, though I havn't bothered looking to see exactly how it differs from
the standard shl.
It certains *isn't* a case of the sxt layering stuff being understood 
directly by ksh.

PS. If anyone does go about putting this stuff *inside* a shell, they'll
    have the nice experience of finding out just how dishonest the manuals
    are when it comes to describing things like sxt(7), setpgrp(2), termio(7),
    etc... :-)

--
Simon Brown, Department of Computer Science, University of Edinburgh,
Scotland, UK.
...!{seismo,decvax}!mcvax!ukc!cstvax[!its63b]!simon.