This works fine on my machine, but I don't get $num and its regexp at first. 

   if (my $num = /\[/.../\]/)

[download]

must be 

   if (my $num = $_ =~ /\[/.../\]/)

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I don't understand what the regexp '/\/.../\/' means. I asked Yape::Regex 

my $regexp='\[/.../\]';
use YAPE::Regex::Explain;
my $exp = YAPE::Regex::Explain->new($regexp)->explain;
print $exp;

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and it says 

The regular expression:

(?-imsx:\[/.../\])

matches as follows:

NODE                     EXPLANATION
----------------------------------------------------------------------
(?-imsx:                 group, but do not capture (case-sensitive)
                         (with ^ and $ matching normally) (with . not
                         matching \n) (matching whitespace and #
                         normally):
----------------------------------------------------------------------
  \[                       '['
----------------------------------------------------------------------
  /                        '/'
----------------------------------------------------------------------
  .                        any character except \n
----------------------------------------------------------------------
  .                        any character except \n
----------------------------------------------------------------------
  .                        any character except \n
----------------------------------------------------------------------
  /                        '/'
----------------------------------------------------------------------
  \]                       ']'
----------------------------------------------------------------------
)                        end of grouping
----------------------------------------------------------------------

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Where does it match against __DATA__ lines? I have no idea. And Why /E0/ ? Someone please shed some light for me.

In reply to Re^2: Parsing a file and finding the dependencies in it by remiah
in thread Parsing a file and finding the dependencies in it by legendx

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