Stewart Stremler wrote:
Is that "Mastering Regular Expressions" or something?
/me checks
Yup. I've looked at that, but never found enough in it to make it
worthwhile to actually *pay* for the book. Most of the advanced
features in most regex languages are incompatible with the advanced
features in *other* regex languages, but nearly all of 'em have at
least dot, start, plus, question, brackets, brackets with caret, caret,
and dollar-sign (and if you're lucky, parens do grouping).
It's not the memorization that folks have a problem with. It's the
concepts. But then, to me, regex are just a compact form of a DFA.
I actually like the original camel book for Perl better (ie. the magenta
one rather than the cyan one). It had the regex description and the
recipes for using them in the same book. Now, you have to have the Perl
book *and* the Perl Cookbook to get that.
I found that taking a formal languages course resulted in sendmail.cf
making sense; worse, not just sense, but it was *obvious*.
And then you put that sendmail.cf in use--and it fails in very
nonobvious ways.
Actually, sendmail.cf files are pretty easy nowadays. Stick with the
normal addresses and trash everything else.
Now, back when your sendmail.cf had to deal with Bitnet, UUCP, DECNET,
JANET((?) the original standard for Britain which had the host and name
parts *backwards*) and a whole host of other networks and standards,
reading and editing sendmail.cf was torture.
Haven't seen an email bangpath in years,
-a
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