Automatic generation produced by ISE Eiffel

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note description: "Non-deterministic finite state automata" legal: "See notice at end of class." status: "See notice at end of class." date: "$Date: 2017-04-14 01:58:10 -0800 (Fri, 14 Apr 2017) $" revision: "$Revision: 100191 $" deferred class interface NDFA feature -- Access dfa: detachable FIXED_DFA -- DFA built by routine construct_dfa, -- which recognizes the same language. find_e_successors (source: INTEGER_32): detachable LINKED_LIST [INTEGER_32] -- Epsilon successors of source. -- Void if no successor. require source_in_automaton: source >= 1 and source <= nb_states find_successors (source, input_doc: INTEGER_32): detachable LINKED_LIST [INTEGER_32] -- Successors of source on input_doc; -- Void if no successor require source_in_automaton: source >= 1 and source <= nb_states possible_input_doc: input_doc >= 0 and input_doc <= greatest_input generating_type: TYPE [detachable NDFA] -- Type of current object -- (type of which it is a direct instance) -- (from ANY) ensure -- from ANY generating_type_not_void: Result /= Void generator: STRING_8 -- Name of current object's generating class -- (base class of the type of which it is a direct instance) -- (from ANY) ensure -- from ANY generator_not_void: Result /= Void generator_not_empty: not Result.is_empty greatest_input: INTEGER_32 -- Greatest input used for the transitions from state -- to state (the smallest one is zero) -- (from AUTOMATON) start_number: INTEGER_32 -- Unique start state used for the beginning of -- the automaton's operation -- (from AUTOMATON) feature -- Measurement nb_states: INTEGER_32 -- Number of states in the automaton -- (from AUTOMATON) feature -- Comparison frozen deep_equal (a: detachable ANY; b: like arg #1): BOOLEAN -- Are a and b either both void -- or attached to isomorphic object structures? -- (from ANY) ensure -- from ANY instance_free: class shallow_implies_deep: standard_equal (a, b) implies Result both_or_none_void: (a = Void) implies (Result = (b = Void)) same_type: (Result and (a /= Void)) implies (b /= Void and then a.same_type (b)) symmetric: Result implies deep_equal (b, a) frozen equal (a: detachable ANY; b: like arg #1): BOOLEAN -- Are a and b either both void or attached -- to objects considered equal? -- (from ANY) ensure -- from ANY instance_free: class definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.is_equal (b)) frozen is_deep_equal alias "≡≡≡" (other: NDFA): BOOLEAN -- Are Current and other attached to isomorphic object structures? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY shallow_implies_deep: standard_is_equal (other) implies Result same_type: Result implies same_type (other) symmetric: Result implies other.is_deep_equal (Current) is_equal (other: NDFA): BOOLEAN -- Is other attached to an object considered -- equal to current object? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY symmetric: Result implies other ~ Current consistent: standard_is_equal (other) implies Result frozen standard_equal (a: detachable ANY; b: like arg #1): BOOLEAN -- Are a and b either both void or attached to -- field-by-field identical objects of the same type? -- Always uses default object comparison criterion. -- (from ANY) ensure -- from ANY instance_free: class definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.standard_is_equal (b)) frozen standard_is_equal alias "" (other: NDFA): BOOLEAN -- Is other attached to an object of the same type -- as current object, and field-by-field identical to it? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY same_type: Result implies same_type (other) symmetric: Result implies other.standard_is_equal (Current) feature -- Status report conforms_to (other: ANY): BOOLEAN -- Does type of current object conform to type -- of other (as per Eiffel: The Language, chapter 13)? -- (from ANY) require -- from ANY other_not_void: other /= Void same_type (other: ANY): BOOLEAN -- Is type of current object identical to type of other? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY definition: Result = (conforms_to (other) and other.conforms_to (Current)) feature -- Status setting set_final (state, f: INTEGER_32) -- Make state final for regular expression f. -- (from AUTOMATON) set_start (n: INTEGER_32) -- Select state n as the starting state. -- (from AUTOMATON) require -- from AUTOMATON no_other_start: start_number = 0 or start_number = n is_in_automaton: n <= nb_states and n >= 1 set_state -- Make a new state. -- (from AUTOMATON) feature -- Element change set_e_transition (source, target: INTEGER_32) -- Set epsilon transition from source to target. require source_in_automaton: source >= 1 and source <= nb_states target_in_automaton: target >= 1 and target <= nb_states set_transition (source, input_doc, target: INTEGER_32) -- Set transition from source to target for input_doc. require -- from AUTOMATON True require else source_in_automaton: source >= 1 and source <= nb_states target_in_automaton: target >= 1 and target <= nb_states possible_input_doc: input_doc >= 0 and input_doc <= greatest_input feature -- Removal delete_transition (source, input_doc, target: INTEGER_32) -- Delete transition from source to target on input_doc. require source_in_automaton: source >= 1 and source <= nb_states target_in_automaton: target >= 1 and target <= nb_states possible_input_doc: input_doc >= 0 and input_doc <= greatest_input feature -- Transformation construct_dfa -- Create an equivalent deterministic finite automaton. require start_number_designated: start_number > 0 ensure sets_list_attached: sets_list /= Void set_tree_attached: set_tree /= Void feature -- Duplication copy (other: NDFA) -- Update current object using fields of object attached -- to other, so as to yield equal objects. -- (from ANY) require -- from ANY other_not_void: other /= Void type_identity: same_type (other) ensure -- from ANY is_equal: Current ~ other frozen deep_copy (other: NDFA) -- Effect equivalent to that of: -- `copy` (other . `deep_twin`) -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY deep_equal: deep_equal (Current, other) frozen deep_twin: NDFA -- New object structure recursively duplicated from Current. -- (from ANY) ensure -- from ANY deep_twin_not_void: Result /= Void deep_equal: deep_equal (Current, Result) frozen standard_copy (other: NDFA) -- Copy every field of other onto corresponding field -- of current object. -- (from ANY) require -- from ANY other_not_void: other /= Void type_identity: same_type (other) ensure -- from ANY is_standard_equal: standard_is_equal (other) frozen standard_twin: NDFA -- New object field-by-field identical to other. -- Always uses default copying semantics. -- (from ANY) ensure -- from ANY standard_twin_not_void: Result /= Void equal: standard_equal (Result, Current) frozen twin: NDFA -- New object equal to Current -- `twin` calls `copy`; to change copying/twinning semantics, redefine `copy`. -- (from ANY) ensure -- from ANY twin_not_void: Result /= Void is_equal: Result ~ Current feature -- Basic operations frozen default: detachable NDFA -- Default value of object's type -- (from ANY) frozen default_pointer: POINTER -- Default value of type POINTER -- (Avoid the need to write p.`default` for -- some p of type POINTER.) -- (from ANY) ensure -- from ANY instance_free: class default_rescue -- Process exception for routines with no Rescue clause. -- (Default: do nothing.) -- (from ANY) frozen do_nothing -- Execute a null action. -- (from ANY) ensure -- from ANY instance_free: class feature -- Output Io: STD_FILES -- Handle to standard file setup -- (from ANY) ensure -- from ANY instance_free: class io_not_void: Result /= Void out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY out_not_void: Result /= Void print (o: detachable ANY) -- Write terse external representation of o -- on standard output. -- (from ANY) ensure -- from ANY instance_free: class frozen tagged_out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY tagged_out_not_void: Result /= Void feature -- Platform Operating_environment: OPERATING_ENVIRONMENT -- Objects available from the operating system -- (from ANY) ensure -- from ANY instance_free: class operating_environment_not_void: Result /= Void invariant -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) note copyright: "Copyright (c) 1984-2017, 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 NDFA
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