[Toybox] awk (Re: ps down, top to go)

[Andy Chu]

> Hi, Dennis --
>
> IANAL, of course, but I certainly would have no objection, and I
> suspect there is no one left at Lucent (now Alcatel now Nokia)
> who would even know this program existed, let alone care.  Whether
> it's the best code is an entirely different issue -- it's pretty
> grimy inside.  The main merit is that it isn't very big (but neither
> was the busybox version if I recall).
> </quote>
>
> *He* certainly wouldn't mind.  :-)

I think he's being a characteristically modest... I wouldn't call it
grimy.  There are a lot more globals than I would like, but that's
typical for C code especially of that era.  The grammar looks nice and
clean.

The fact that busybox can get it done in 3300 LOC is interesting
though.  I'm pretty surprised because I can't see where they're hiding
the equivalent of Kernighan's parser (awkgram.y).  I wonder if it
really implements awk or it's just the subset that people happen to
use.  There are some huge awk programs out there, but perhaps they're
just rare.

Andy