2 Dec
2018
2 Dec
'18
8:59 a.m.
On 12/1/18 7:44 PM, Larry McVoy wrote:
I'm kinda with Grant on this one. Maybe I
misunderstood but what I
thought you did was treat the sendmail.cf as assembler for a weird
processor and then you wrote a higher level language that compiled
down to sendmail.cf. Which, if that's that you did, is pretty studly.
I think Grant was asking what you did the higher level language in,
he was wondering if it was m4
Yep, that's what I was my interpretation and my question.
(which I doubt, if I were doing that it would either
be some nasty perl
script that I thought was going to be small but wasn't, or I'd just go
to lex/yacc/C).
One of these days I should find out the genesis of the m4 (.mc) file
syntax that is used to generate the .cf file.
I'm curious why m4 was chosen over other languages. I wonder what the
other language options were.
I know that I learned m4 because of Sendmail's .mc file. I've since
started using m4 for a number of other things.
--
Grant. . . .
unix || die