Beefy Boxes and Bandwidth Generously Provided by pair Networks
Come for the quick hacks, stay for the epiphanies.

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

When you have a problem, don't hide the errors! Use use strict; and use warnings;.

$ perl -Mstrict -wle'my @f = glob("*.mp3"); push @{$f[/ad/]}, $_ forea +ch @f;' Can't use string ("bar.mp3") as an ARRAY ref while "strict refs" in us +e at -e line 1.

In the first snippet, $f[0] and $f[1] contain undef or an array reference. push @{$f[...]}, pushes unto the referenced array (creating it if necessary).

In the second snippet, $f[0] and $f[1] contain file names. push @{$f[...]}, uses the file name as an array name and push unto the named array.

$ perl -le '@f = glob("*.mp3"); push @{$f[/ad/]}, $_ foreach @f; use D +ata::Dumper; print Dumper(\@f, \@{"bad.mp3"}, \@{"bar.mp3"})' $VAR1 = [ 'bad.mp3', 'bar.mp3', 'foo.mp3', 'moo.mp3' ]; $VAR2 = [ 'bar.mp3', 'foo.mp3', 'moo.mp3' ]; $VAR3 = [ 'bad.mp3' ];

Perhaps you shouldn't use the same array to save your file names and your arrays of file names...

In reply to Re: push foreach glob - bug? by ikegami
in thread push foreach glob - bug? by sfink

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

  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?

What's my password?
Create A New User
Domain Nodelet?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others cooling their heels in the Monastery: (5)
As of 2023-12-01 04:26 GMT
Find Nodes?
    Voting Booth?

    No recent polls found