27 Jun
2016
27 Jun
'16
5:23 p.m.
On Mon, 27 Jun 2016, Joerg Schilling wrote:
Steve Nickolas <usotsuki(a)buric.co> wrote:
Eh. I had a specific reason for doing it that most people would find
idiotic - I was using OSes (DOS - mainly on a Tandy 1000, which in no way
could ever hope to handle DJGPP - and Win32) that weren't remotely POSIX
and I wanted to make them feel more Unixy without outright *emulating
Unix*.
-uso.
I tried a couple times to figure out how to
implement a Bourne shell, and
just couldn't figure it out. But then, I was never much of a programmer.
It is hard and you cannot do it from just reading the POSIX standard.
This is because the POSIX standard tries to write descriptions in an abstract
notation that missleads people that did never see a working implementation
before.
After a few years of maintaining the Bourne Shell, I would know how to do it but
I am not interested to do it from scratch.
Jörg