The first is a special behavior of 4-argument substr which is rather handy. The second is just the way assignments work (what value they themselves return). Just like: 

    my $x= "foo";
    print $x= "bar";

[download]
prints "bar".

Update: Actually, I expected substr(...)= expr to return expr. Rereading, I see that it isn't. I'd call that a bug.

        - tye (but my friends call me "Tye")

In reply to (tye)Re: [substr] anomaly or mine? by tye
in thread [substr] anomaly or mine? by BrowserUk

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