Regexp::Common::net::CIDR -- provide patterns for CIDR blocks.

    use Regexp::Common ();
    use Regexp::Common::net::CIDR ();

    while (<>) {
        /$RE{net}{CIDR}{IPv4}/ and print "Contains a CIDR.\n";
    }

Patterns for CIDR blocks. Now only next IPv4 formats are supported:

  xxx.xxx/xx
  xxx.xxx.xxx/xx
  xxx.xxx.xxx.xxx/xx

With {-keep} stores address in $1 and number of bits in $2.

  perl Makefile.PL
  make
  make install

As Regexp::Common doesn't work well with extensions named Regexp::Common::xxx::yyy you have to load this extension yourself with use or require.

Ruslan U. Zakirov <ruz@bestpractical.com>