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formats work right on changing lexicals

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formats work right on changing lexicals

Just like anonymous functions that contain lexical variables that change (like a lexical index variable for a foreach loop), formats now work properly. For example, this silently failed before (printed only zeros), but is fine now:

    my $i;
    foreach $i ( 1 .. 10 ) {
        write;
    }
    format =
        my i is @#
        $i
    .

However, it still fails (without a warning) if the foreach is within a subroutine:

    my $i;
    sub foo {
      foreach $i ( 1 .. 10 ) {
        write;
      }
    }
    foo;
    format =
        my i is @#
        $i
    .

Source: what's new for perl5.004
Copyright: Larry Wall, et al.

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(Corrections, notes, and links courtesy of RocketAware.com)

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