Hola Monks...

I was looking at the qr// operator the other day, and came across this, from perlop: 

The result may be used as a subpattern in a match: 

    $re = qr/$pattern/;
    $string =~ /foo${re}bar/;    # can be interpolated in other patter
+ns
    $string =~ $re;        # or used standalone
    $string =~ /$re/;        # or this way

[download]

And I came to the conclusion that I had no clue what was going on in the /foo${re}bar/ snip. Why the {}'s in this case? Not repetition, I assume. And why is '$' outside of them? Why is 're' not treated as a fixed string? If someone could spell out what exactly this means, I would appreciate it.

Confusedly...

~evan

In reply to /foo${re}bar/ by eweaverp

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