note description: "[ Abstract built-in executable command on the interactive terminal. ]" legal: "See notice at end of class." status: "See notice at end of class." date: "$Date$" revision: "$Revision$" deferred class COMMAND inherit INTERACTIVE_TERMINAL_FACADE feature {NONE} --Initialization make (a_terminal: like interactive_terminal) -- Initialize the command using the source terminal. -- -- `a_terminal': The terminal object. do interactive_terminal := a_terminal ensure interactive_terminal_set: interactive_terminal = a_terminal end feature -- Access interactive_terminal: INTERACTIVE_TERMINAL -- Terminal used for interaction. description: IMMUTABLE_STRING_8 -- Description of the command, used for quick help. deferred ensure not_result_is_empty: not Result.is_empty not_result_contains_new_line: not Result.has ('%N') end feature -- Basic operations execute (a_args: detachable ARRAY [READABLE_STRING_8]) -- Performs an interactive command. -- -- `a_args': The arguments to use with the command. require interactive_terminal_is_interactive: interactive_terminal.is_interactive deferred end display_help (a_args: detachable ARRAY [READABLE_STRING_8]) -- Displays command help. -- -- `a_args': The arguments to use with the help command. require terminal_is_interactive: interactive_terminal.is_interactive local l_writer: like terminal_writer do l_writer := terminal_writer l_writer.put_string (description) end ;note copyright: "Copyright (c) 1984-2009, Eiffel Software" license: "GPL version 2 (see http://www.eiffel.com/licensing/gpl.txt)" licensing_options: "http://www.eiffel.com/licensing" copying: "[ This file is part of Eiffel Software's Eiffel Development Environment. Eiffel Software's Eiffel Development Environment is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2 of the License (available at the URL listed under "license" above). Eiffel Software's Eiffel Development Environment is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Eiffel Software's Eiffel Development Environment; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA ]" source: "[ Eiffel Software 5949 Hollister Ave., Goleta, CA 93117 USA Telephone 805-685-1006, Fax 805-685-6869 Website http://www.eiffel.com Customer support http://support.eiffel.com ]" end