Re: Regular expression (regcomp()) ccsid issue

On Sun, Nov 3, 2019 at 4:03 PM Craig Richards <craig@xxxxxxxxxxxxxxxx> wrote:

Classes such as \s are not a standard part of regular expressions

I'm not so sure I agree with this statement.

I believe that perl 2 did evolve support for \d \w \s (and their opposites
\D, \W and \S) in 1988, but I thought it was pretty standard now:

Well, the word "standard" as Scott used it means something quite
specific. It's kind of like "standard transmission" in the U.S. (where
stick-and-clutch-pedal transmissions have all but disappeared, but
"standard transmission" still means manual) or "standard time" (even
though in the U.S., daylight time is observed by virtually the whole
country for roughly two-thirds of the year).

I wasn't aware of what iSphere was using for it's searches

And that's pretty much the whole ball of wax right there. If it's
using a "standard regex" library (as opposed to a PCRE library), then
it won't have the Perl regex available. Yes, PCRE is *de rigueur*
these days, so it is "standard" in the same sense that automatic
transmissions are standard in cars sold in the U.S. But it is entirely
possible that iSphere happens to not be using a PCRE library. I don't
know what it uses either.

John Y.