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Perl #514

sub pfexec { args "pfexec", @_ unless $1.$2 eq "pfexec";
  local ( $_, $lp, @rep ) = @_; $lp ||= 1;
  die 'Command string must not contain $$ sequences' if m/\$\$/o;
  1 while s/\(([^()]*)\)/'$$'.push(@rep,$1)/eo;
# print $_,"REP:\n","=>",join( "\n=>", @rep),"\n";
  unshift @rep, ""; s/\s+/ /g;

LOOP: while ( $lp-- ) {
        foreach ( split ";" ){
          my @cmd = split " "; $_ = shift @cmd; last unless m/^(\w{2})(\w+)/o;
CMD:  foreach (@cmd){
                1 while s/\$\$(\d+)/'('.$rep[$1].')'/eo; s/^\(\s*(.*?)\s*\)$/$1/so;
                s/^\%(\d+)->(\w+)=//    and ${$HASH[$1]} ->{$2} = $_ and next;
                /^\%(\d+)->(\w+)/               and $_ = ${$HASH[$1]} ->{$2} and redo CMD;

                /^%%(\d+)/      and $_ = $HASH[$1] || ( $HASH[$1] = \{} ) and next;
                /^\%(\d+)/      and $_ = ${$HASH[$1]} and next;
                /^\#\#(\d+)/ and $_ = $CHAN[$1] || ( $CHAN[$1] = \{} ) and next;
                /^\#(\d+)/      and $_ = ${$CHAN[$1]} and next;
          }
          $_ = $::control{$1} && $::control{$1}{$2};
          s/\^(\d+)/$cmd[$1-1]/geo and print "Expanded to: $_\n"
                and pfexec( $_ ) if !ref;
          args $1.$2, @cmd and eval { $_->(@cmd) } if "CODE" eq ref;
          last LOOP if $@;
        }
  }

HovnoKod,