#! perl

# miscellaneous commands

sub rename_to($$$) {
   my ($ob, $from, $to) = @_;

   warn "<$ob|$from|$to>\n";#d#

   $to =~ /^[a-zA-Z0-9.,=#\/%$!^]*$/
      or return $ob->message ("rename: name must consist only of letters, digits, spaces and a few other things.");

   127 >= length $to
      or return $ob->message ("rename: new name must be <= 127 characters.");

   my $item;

   if (length $from) {
      $item = $ob->find_best_object_match ($from)
         or return $ob->message ("rename: could not find a matching item to rename.");
   } else {
      $item = $ob->find_marked_object ()
         or return $ob->message ("rename: no from name and no marked item found to rename.");
   }

  $item->custom_name (length $to ? $to : undef);

  if (length $to) {
     $item->custom_name ($to);
     $ob->message ("Your " . $item->base_name . " will now be called $to.");
  } else {
     $item->custom_name (undef);
     $ob->message ("You stop calling your " . $item->base_name . " with weird names.");
  }

  $ob->esrv_update_item (cf::UPD_NAME, $item);

  return 1;
}

cf::register_command rename => 0, sub {
   my ($ob, $arg) = @_;

   warn "<<<$arg>>>\n";#d#

   if ($arg =~ /^\s* (?: <([^>]+)> \s+)? to \s+ <([^>]+)> \s*$/x) {
      # compatibility syntax
      rename_to $ob, $1, $2;
   } elsif ($arg =~ /
               ^\s*
               (?:
                  (?: "((?:[^"]+|\\.)*)" | (\S+) )
               \s+)?
               to \s+
               (?: "((?:[^"]+|\\.)*)" | (\S+) )
               \s*$
            /x) {
      # does not unquote $1 or $3
      rename_to $ob, $2||$1, $4||$3;
   } else {
      $ob->message ('Syntax error. Rename usage: rename ["oldname"] to "newname"');
   }
};