note
	description: "File name abstraction"
	library: "Free implementation of ELKS library"
	status: "See notice at end of class."
	legal: "See notice at end of class."
	date: "$Date: 2019-02-20 15:19:53 +0000 (Wed, 20 Feb 2019) $"
	revision: "$Revision: 102853 $"

class interface
	FILE_NAME

create 
	make,
	make_from_string,
	make_temporary_name


create {FILE_NAME}
	string_make

feature -- Status report

	is_valid: BOOLEAN
			-- Is the file name valid for the operating system?

	is_file_name_valid (f_name: STRING_8): BOOLEAN
			-- Is f_name a valid file name part for the operating system?

	is_extension_valid (ext: STRING_8): BOOLEAN
			-- Is ext a valid extension for the operating system?
	
feature -- Status setting

	set_file_name (file_name: STRING_8)
			-- Set the value of the file name part.
		require
			string_exists: file_name /= Void
			valid_file_name: is_file_name_valid (file_name)
		ensure
			valid_file_name: is_valid

	add_extension (ext: STRING_8)
			-- Append the extension ext to the file name
		require
			string_exists: ext /= Void
			non_empty_extension: not ext.is_empty
			valid_extension: is_extension_valid (ext)
	
note
	copyright: "Copyright (c) 1984-2019, Eiffel Software and others"
	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
	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 -- class FILE_NAME

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