Better change order of those lines:

if ($line =~ m/:.+\@.+\s([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3
+})/)
{
  Xchat::print("test2",,$servertabname);
  my $ip = $1;

[download]

to

if ($line =~ m/:.+\@.+\s([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3
+})/)
{
  my $ip = $1;
  Xchat::print("test2",,$servertabname);

[download]

If there is any regexp inside Xchat::print() method, it will reset $1. Maybe this is your case?

BTW. [0-9] can be written as \d

In reply to Re: Frustration With regex by grizzley
in thread Frustration With regex by BlueInk

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