---input---
you_lose_msg = "Either that person does not exist, or has a different password.";
if (!(caller in {#0, this}))
  return E_PERM;
  "...caller isn't :do_login_command...";
elseif (args && (args[1] == "test"))
  return this:test(@listdelete(args, 1));
elseif (!(length(args) in {1, 2}))
  notify(player, tostr("Usage:  ", verb, " <existing-player-name> <password>"));
elseif (!valid(candidate = this:_match_player(name = strsub(args[1], " ", "_"))))
  if (name == "guest")
    "must be no guests";
    this:notify_lines(this:registration_text("guest"));
  else
    notify(player, you_lose_msg);
  endif
  "...unknown player...";
elseif (is_clear_property(candidate, "password") || ((typeof(candidate.password) == STR) && ((length(candidate.password) < 2) || (crypt({@args, ""}[2], candidate.password) != candidate.password))))
  notify(player, you_lose_msg);
  "...bad password...";
  server_log(tostr("FAILED CONNECT: ", args[1], " (", candidate, ") on ", connection_name(player), ($string_utils:connection_hostname(connection_name(player)) in candidate.all_connect_places) ? "" | "******"));
elseif (((candidate.name == "guest") && this.sitematch_guests) && valid(foreigner = $country_db:get_guest()))
  notify(player, tostr("Okay,...  Logging you in as `", foreigner:name(), "'"));
  this:record_connection(foreigner);
  return foreigner;
elseif ((parent(candidate) == $guest) && (!valid(candidate = candidate:defer())))
  if (candidate == #-3)
    notify(player, "Sorry, guest characters are not allowed from your site right now.");
  elseif (candidate == #-2)
    this:notify_lines(this:registration_text("blacklisted", "Sorry, guest characters are not allowed from your site."));
  elseif (candidate == #-4)
    this:notify_lines(this:registration_text("guest"));
  else
    notify(player, "Sorry, all of our guest characters are in use right now.");
  endif
else
  if ((!(name in candidate.aliases)) && (name != tostr(candidate)))
    notify(player, tostr("Okay,... ", name, " is in use.  Logging you in as `", candidate:name(), "'"));
  endif
  if (this:is_newted(candidate))
    notify(player, "");
    notify(player, this:newt_message_for(candidate));
    notify(player, "");
  else
    this:record_connection(candidate);
    if (verb[1] == "s")
      candidate.use_do_command = 0;
    endif
    return candidate;
  endif
endif
return 0;

---tokens---
'you_lose_msg' Text
' '           Text
'='           Operator
' '           Text
'"Either that person does not exist, or has a different password."' Literal.String
';'           Operator
'\n'          Text

'if'          Keyword
' '           Text
'(!('         Operator
'caller'      Name.Variable.Instance
' '           Text
'in'          Keyword
' '           Text
'{'           Operator
'#0'          Name.Entity
','           Operator
' '           Text
'this'        Name.Variable.Instance
'}))'         Operator
'\n  '        Text
'return'      Keyword
' '           Text
'E_PERM'      Name.Exception
';'           Operator
'\n  '        Text
'"...caller isn\'t :do_login_command..."' Literal.String
';'           Operator
'\n'          Text

'elseif'      Keyword
' '           Text
'('           Operator
'args'        Name.Variable.Instance
' '           Text
'&&'          Operator
' '           Text
'('           Operator
'args'        Name.Variable.Instance
'['           Operator
'1'           Literal.Number.Integer
']'           Operator
' '           Text
'=='          Operator
' '           Text
'"test"'      Literal.String
'))'          Operator
'\n  '        Text
'return'      Keyword
' '           Text
'this'        Name.Variable.Instance
':'           Operator
'test'        Name.Function
'('           Operator
'@'           Operator
'listdelete'  Name.Function
'('           Operator
'args'        Name.Variable.Instance
','           Operator
' '           Text
'1'           Literal.Number.Integer
'));'         Operator
'\n'          Text

'elseif'      Keyword
' '           Text
'(!('         Operator
'length'      Name.Builtin
'('           Operator
'args'        Name.Variable.Instance
')'           Operator
' '           Text
'in'          Keyword
' '           Text
'{'           Operator
'1'           Literal.Number.Integer
','           Operator
' '           Text
'2'           Literal.Number.Integer
'}))'         Operator
'\n  '        Text
'notify'      Name.Function
'('           Operator
'player'      Name.Variable.Instance
','           Operator
' '           Text
'tostr'       Name.Function
'('           Operator
'"Usage:  "'  Literal.String
','           Operator
' '           Text
'verb'        Text
','           Operator
' '           Text
'" <existing-player-name> <password>"' Literal.String
'));'         Operator
'\n'          Text

'elseif'      Keyword
' '           Text
'(!'          Operator
'valid'       Name.Function
'('           Operator
'candidate'   Text
' '           Text
'='           Operator
' '           Text
'this'        Name.Variable.Instance
':'           Operator
'_match_player' Name.Function
'('           Operator
'name'        Text
' '           Text
'='           Operator
' '           Text
'strsub'      Name.Function
'('           Operator
'args'        Name.Variable.Instance
'['           Operator
'1'           Literal.Number.Integer
'],'          Operator
' '           Text
'" "'         Literal.String
','           Operator
' '           Text
'"_"'         Literal.String
'))))'        Operator
'\n  '        Text
'if'          Keyword
' '           Text
'('           Operator
'name'        Text
' '           Text
'=='          Operator
' '           Text
'"guest"'     Literal.String
')'           Operator
'\n    '      Text
'"must be no guests"' Literal.String
';'           Operator
'\n    '      Text
'this'        Name.Variable.Instance
':'           Operator
'notify_lines' Name.Function
'('           Operator
'this'        Name.Variable.Instance
':'           Operator
'registration_text' Name.Function
'('           Operator
'"guest"'     Literal.String
'));'         Operator
'\n  '        Text
'else'        Keyword
'\n    '      Text
'notify'      Name.Function
'('           Operator
'player'      Name.Variable.Instance
','           Operator
' '           Text
'you_lose_msg' Text
');'          Operator
'\n  '        Text
'endif'       Keyword
'\n  '        Text
'"...unknown player..."' Literal.String
';'           Operator
'\n'          Text

'elseif'      Keyword
' '           Text
'('           Operator
'is_clear_property' Name.Function
'('           Operator
'candidate'   Text
','           Operator
' '           Text
'"password"'  Literal.String
')'           Operator
' '           Text
'||'          Operator
' '           Text
'(('          Operator
'typeof'      Name.Function
'('           Operator
'candidate'   Text
'.'           Operator
'password'    Text
')'           Operator
' '           Text
'=='          Operator
' '           Text
'STR'         Text
')'           Operator
' '           Text
'&&'          Operator
' '           Text
'(('          Operator
'length'      Name.Builtin
'('           Operator
'candidate'   Text
'.'           Operator
'password'    Text
')'           Operator
' '           Text
'<'           Operator
' '           Text
'2'           Literal.Number.Integer
')'           Operator
' '           Text
'||'          Operator
' '           Text
'('           Operator
'crypt'       Name.Function
'('           Operator
'{@'          Operator
'args'        Name.Variable.Instance
','           Operator
' '           Text
'""'          Literal.String
'}['          Operator
'2'           Literal.Number.Integer
'],'          Operator
' '           Text
'candidate'   Text
'.'           Operator
'password'    Text
')'           Operator
' '           Text
'!='          Operator
' '           Text
'candidate'   Text
'.'           Operator
'password'    Text
'))))'        Operator
'\n  '        Text
'notify'      Name.Function
'('           Operator
'player'      Name.Variable.Instance
','           Operator
' '           Text
'you_lose_msg' Text
');'          Operator
'\n  '        Text
'"...bad password..."' Literal.String
';'           Operator
'\n  '        Text
'server_log'  Name.Function
'('           Operator
'tostr'       Name.Function
'('           Operator
'"FAILED CONNECT: "' Literal.String
','           Operator
' '           Text
'args'        Name.Variable.Instance
'['           Operator
'1'           Literal.Number.Integer
'],'          Operator
' '           Text
'" ("'        Literal.String
','           Operator
' '           Text
'candidate'   Text
','           Operator
' '           Text
'") on "'     Literal.String
','           Operator
' '           Text
'connection_name' Name.Function
'('           Operator
'player'      Name.Variable.Instance
'),'          Operator
' '           Text
'('           Operator
'$string_utils' Name.Entity
':'           Operator
'connection_hostname' Name.Function
'('           Operator
'connection_name' Name.Function
'('           Operator
'player'      Name.Variable.Instance
'))'          Operator
' '           Text
'in'          Keyword
' '           Text
'candidate'   Text
'.'           Operator
'all_connect_places' Text
')'           Operator
' '           Text
'?'           Operator
' '           Text
'""'          Literal.String
' '           Text
'|'           Operator
' '           Text
'"******"'    Literal.String
'));'         Operator
'\n'          Text

'elseif'      Keyword
' '           Text
'((('         Operator
'candidate'   Text
'.'           Operator
'name'        Text
' '           Text
'=='          Operator
' '           Text
'"guest"'     Literal.String
')'           Operator
' '           Text
'&&'          Operator
' '           Text
'this'        Name.Variable.Instance
'.'           Operator
'sitematch_guests' Text
')'           Operator
' '           Text
'&&'          Operator
' '           Text
'valid'       Name.Function
'('           Operator
'foreigner'   Text
' '           Text
'='           Operator
' '           Text
'$country_db' Name.Entity
':'           Operator
'get_guest'   Name.Function
'('           Operator
')))'         Operator
'\n  '        Text
'notify'      Name.Function
'('           Operator
'player'      Name.Variable.Instance
','           Operator
' '           Text
'tostr'       Name.Function
'('           Operator
'"Okay,...  Logging you in as `"' Literal.String
','           Operator
' '           Text
'foreigner'   Text
':'           Operator
'name'        Name.Function
'('           Operator
'),'          Operator
' '           Text
'"\'"'        Literal.String
'));'         Operator
'\n  '        Text
'this'        Name.Variable.Instance
':'           Operator
'record_connection' Name.Function
'('           Operator
'foreigner'   Text
');'          Operator
'\n  '        Text
'return'      Keyword
' '           Text
'foreigner'   Text
';'           Operator
'\n'          Text

'elseif'      Keyword
' '           Text
'(('          Operator
'parent'      Name.Function
'('           Operator
'candidate'   Text
')'           Operator
' '           Text
'=='          Operator
' '           Text
'$guest'      Name.Entity
')'           Operator
' '           Text
'&&'          Operator
' '           Text
'(!'          Operator
'valid'       Name.Function
'('           Operator
'candidate'   Text
' '           Text
'='           Operator
' '           Text
'candidate'   Text
':'           Operator
'defer'       Name.Function
'('           Operator
'))))'        Operator
'\n  '        Text
'if'          Keyword
' '           Text
'('           Operator
'candidate'   Text
' '           Text
'=='          Operator
' '           Text
'#-3'         Name.Entity
')'           Operator
'\n    '      Text
'notify'      Name.Function
'('           Operator
'player'      Name.Variable.Instance
','           Operator
' '           Text
'"Sorry, guest characters are not allowed from your site right now."' Literal.String
');'          Operator
'\n  '        Text
'elseif'      Keyword
' '           Text
'('           Operator
'candidate'   Text
' '           Text
'=='          Operator
' '           Text
'#-2'         Name.Entity
')'           Operator
'\n    '      Text
'this'        Name.Variable.Instance
':'           Operator
'notify_lines' Name.Function
'('           Operator
'this'        Name.Variable.Instance
':'           Operator
'registration_text' Name.Function
'('           Operator
'"blacklisted"' Literal.String
','           Operator
' '           Text
'"Sorry, guest characters are not allowed from your site."' Literal.String
'));'         Operator
'\n  '        Text
'elseif'      Keyword
' '           Text
'('           Operator
'candidate'   Text
' '           Text
'=='          Operator
' '           Text
'#-4'         Name.Entity
')'           Operator
'\n    '      Text
'this'        Name.Variable.Instance
':'           Operator
'notify_lines' Name.Function
'('           Operator
'this'        Name.Variable.Instance
':'           Operator
'registration_text' Name.Function
'('           Operator
'"guest"'     Literal.String
'));'         Operator
'\n  '        Text
'else'        Keyword
'\n    '      Text
'notify'      Name.Function
'('           Operator
'player'      Name.Variable.Instance
','           Operator
' '           Text
'"Sorry, all of our guest characters are in use right now."' Literal.String
');'          Operator
'\n  '        Text
'endif'       Keyword
'\n'          Text

'else'        Keyword
'\n  '        Text
'if'          Keyword
' '           Text
'((!('        Operator
'name'        Text
' '           Text
'in'          Keyword
' '           Text
'candidate'   Text
'.'           Operator
'aliases'     Text
'))'          Operator
' '           Text
'&&'          Operator
' '           Text
'('           Operator
'name'        Text
' '           Text
'!='          Operator
' '           Text
'tostr'       Name.Function
'('           Operator
'candidate'   Text
')))'         Operator
'\n    '      Text
'notify'      Name.Function
'('           Operator
'player'      Name.Variable.Instance
','           Operator
' '           Text
'tostr'       Name.Function
'('           Operator
'"Okay,... "' Literal.String
','           Operator
' '           Text
'name'        Text
','           Operator
' '           Text
'" is in use.  Logging you in as `"' Literal.String
','           Operator
' '           Text
'candidate'   Text
':'           Operator
'name'        Name.Function
'('           Operator
'),'          Operator
' '           Text
'"\'"'        Literal.String
'));'         Operator
'\n  '        Text
'endif'       Keyword
'\n  '        Text
'if'          Keyword
' '           Text
'('           Operator
'this'        Name.Variable.Instance
':'           Operator
'is_newted'   Name.Function
'('           Operator
'candidate'   Text
'))'          Operator
'\n    '      Text
'notify'      Name.Function
'('           Operator
'player'      Name.Variable.Instance
','           Operator
' '           Text
'""'          Literal.String
');'          Operator
'\n    '      Text
'notify'      Name.Function
'('           Operator
'player'      Name.Variable.Instance
','           Operator
' '           Text
'this'        Name.Variable.Instance
':'           Operator
'newt_message_for' Name.Function
'('           Operator
'candidate'   Text
'));'         Operator
'\n    '      Text
'notify'      Name.Function
'('           Operator
'player'      Name.Variable.Instance
','           Operator
' '           Text
'""'          Literal.String
');'          Operator
'\n  '        Text
'else'        Keyword
'\n    '      Text
'this'        Name.Variable.Instance
':'           Operator
'record_connection' Name.Function
'('           Operator
'candidate'   Text
');'          Operator
'\n    '      Text
'if'          Keyword
' '           Text
'('           Operator
'verb'        Text
'['           Operator
'1'           Literal.Number.Integer
']'           Operator
' '           Text
'=='          Operator
' '           Text
'"s"'         Literal.String
')'           Operator
'\n      '    Text
'candidate'   Text
'.'           Operator
'use_do_command' Text
' '           Text
'='           Operator
' '           Text
'0'           Literal.Number.Integer
';'           Operator
'\n    '      Text
'endif'       Keyword
'\n    '      Text
'return'      Keyword
' '           Text
'candidate'   Text
';'           Operator
'\n  '        Text
'endif'       Keyword
'\n'          Text

'endif'       Keyword
'\n'          Text

'return'      Keyword
' '           Text
'0'           Literal.Number.Integer
';'           Operator
'\n'          Text