Re: small cleanup: unify scanstr() functions

John Naylor <john(dot)naylor(at)2ndquadrant(dot)com> writes:
> On Thu, Oct 1, 2020 at 11:19 AM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> In short: maybe instead of what you have here, leave GUC_scanstr()
>> alone except for a possible rename; make bootscanner.l use that;
>> and drop the now-unused scanstr().

> v2 done that way.

Pushed with very minor adjustments --- mainly, that I rewrote the commit
message to emphasize the change in postgres.bki conventions, since that
could possibly bite someone in more-surprising ways than simple removal
of a function.

> - There seem to be a few unused headers included into bootscanner.l.
> To keep "#include guc.h" from looking as strange as those, I added a
> comment. It might be worth removing those extra includes, but that's
> for another day.

I went ahead and removed everything in bootscanner.l and bootparse.y
that could be removed without provoking a compile error. I was slightly
astonished at how many there were. One gets the impression that there
was once a good deal of very low-level code in the bootstrap grammar.
I didn't try very hard to trace the commit history, but I did note that
almost all of the removed #includes dated to 1996 or so. I'm surprised
they survived Bruce's occasional attempts at removing unused #includes;
maybe his script didn't check .y/.l files.

regards, tom lane