[TUHS] v7 source code for sh
chet.ramey at case.edu
Mon Feb 21 07:19:30 AEST 2022
On 2/20/22 4:02 PM, Larry McVoy wrote:
>> It always seemed like it would have been just the thing to implement as a
>> tty streams module, but research Unix went in a different direction.
> Not really. You want history files, I have one for each tty. Telling
> the tty driver to write to this inode seems sort of weird. I guess you
> could make it work, but to me, this screams libc or libhistory or
> something like that.
History maybe, but most folks seem to want editing more, and just that
incremental improvement would have made a difference.
> I agree it shouldn't be in each app that wants
> it but isn't that what libraries are for?
That's why readline is a library, with application-specific hooks
available, and relies on something like rlwrap if you want to use editing
and history with an unmodified application.
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU chet at case.edu http://tiswww.cwru.edu/~chet/
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