I added a "code ref" test:

sub c3 { print "Evaluating condition 3\n"; /gamma/; }

while (<DATA>) {
    chomp;
    mff(qr/alpha/ => \&s1,
        qr/beta/  => \&s2,
        \&c3      => \&s3,
        qr/omega/         ) or print "*:$_\n";
}

[download]

The output:

*:This is
1:the alpha
1:but not
1:the omega
2:Now the beta
Evaluating condition 3
2:progressing to
Evaluating condition 3
3:the gamma
3:and finally
*:the omega
*:Did this work?

[download]

Which is what I expected.

Apparently, the "fat comma" ( => ) only quotes bare words. chromatic claims the same in the first paragraph of http://www.modernperlbooks.com/mt/2013/04/the-fat-comma-and-clarity.html.

So, => is not imposing string context on \&c3 so that doesn't get stringified.

In reply to Re^5: Multi-stage flip-flop? ( till() - proof of concept) by RonW
in thread Multi-stage flip-flop? by RonW

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