scl.ebnf

trunk = ( command_expr | status_expr | operation_expr );

command_expr = server_command | global_command;
status_expr = "show", (node_name | node_list), element_ref;
operation_expr = ("dump", ("json" | "xml")) | "refresh", ("all" | ("group", group_name) | node_name | node_list);

global_command = global_config | global_monitor | global_action | global_create;
node_name = literal_string;
group_name = literal_string;
node_list = ( node_name | "..." );
condition = ( pred_expr | "..." );
trigger_expr = ( (condition, action_expr) | "..." );
action_expr = "action", action_cmd;
element_ref = namespace, ".", ( item_name, ("..." | ("." , item_name, "..." )));

server_command = "server", node_name, ( server_sub_cmds | "..." );
server_sub_cmds = server_monitor_cmd | server_network_cmd | server_storage_cmd;

monitor_cmd = "monitor", node_name, ( trigger_expr | "..." );

global_config = "config", node_list, config_expr;
global_monitor = "monitor", node_list, trigger_expr;
global_action = "action", node_list, action_expr;
global_create = "create", node_list, create_expr;

config_expr = "storage", config | "network", config | "os_image", config;

command_expr = command, arguments;