note
	description: "Facility routines to check the validity of DATE_TIMEs"
	legal: "See notice at end of class."
	status: "See notice at end of class."
	date: "$Date: 2009-01-01 12:38:30 +0000 (Thu, 01 Jan 2009) $"
	revision: "$Revision: 76534 $"

class interface
	DATE_TIME_VALIDITY_CHECKER

create 
	default_create

feature -- Preconditions

	date_time_valid (s: STRING_8; code_string: STRING_8): BOOLEAN
			-- Is the code_string enough precise
			-- To create an instance of type DATE_TIME
			-- And does the string s correspond to code_string?
		require
			s_exists: s /= Void
			code_exists: code_string /= Void

	date_time_valid_with_base (s: STRING_8; code_string: STRING_8; base: INTEGER_32): BOOLEAN
			-- Is the code_string enough precise
			-- To create an instance of type DATE_TIME
			-- And does the string s correspond to code_string?
			-- Use base century base.
		require
			s_exists: s /= Void
			code_exists: code_string /= Void
			base_valid: base > 0 and (base \\ 100 = 0)

	is_correct_date_time (y, mo, d, h, mi: INTEGER_32; s: REAL_64; twelve_hour_scale: BOOLEAN): BOOLEAN
			-- Is date-time specified by y, mo, d, h, mi, s
			-- correct?
			-- twelve_hour_scale specifies if the hour range is 1 - 12
			-- (if True) or 0 - 23 (if False).
	
note
	copyright: "Copyright (c) 1984-2009, 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 DATE_TIME_VALIDITY_CHECKER

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