Dear Monks,

this is most certainly a misunderstanding of a scope issue but I cannot solve this puzzle myself.

The following code works:

#!/perl use strict; use warnings; use File::Find; my $dir = qw(N:/TMP); find( \&wanted, $dir ); sub wanted { print "[$dir] $File::Find::dir $File::Find::name\n"; }

However if I try to call the same in the loop:

my @dir = ( qw( N:/TMP N:/TMP_2 )); for my $dir ( @dir) { find( \&wanted, $dir ); }

it dies with the message:

Global symbol "$dir" requires explicit package name at ...

If I call the same as an anonyme subroutine, it works:

for my $dir ( @dir) { find( sub {print "[$dir] $File::Find::dir $File::Find::name\n";}, $dir ); }

Could you please explain this behavior?

Thanks in advance.

VE


In reply to File::Find in a loop by vagabonding electron

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.