Automatic generation produced by ISE Eiffel
note description: "Whole text displayed in the editor window." legal: "See notice at end of class." status: "See notice at end of class." author: "Christophe Bonnard [ bonnard@bigfoot.com ] / Arnaud PICHERY [ aranud@mail.dotcom.fr ]" revised_by: "Alexander Kogtenkov" date: "$Date: 2019-08-02 00:08:17 -0800 (Fri, 02 Aug 2019) $" revision: "$Revision: 103380 $" class interface VIEWER_CONTENT create make -- (from B_345_TREE) make_from_file (fn: STRING_8) feature -- Initialization make -- (from B_345_TREE) make_from_file (fn: STRING_8) feature -- Access count: INTEGER_32 -- (from B_345_TREE) first_displayed_line: like current_line first_line: VIEWER_LINE generating_type: TYPE [VIEWER_CONTENT] -- 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 item (i: INTEGER_32): like first_line -- (from B_345_TREE) require -- from B_345_TREE i_is_valid: i >= 1 and i <= count last_line: like first_line -- (from B_345_TREE) last_displayed_line: like current_line nb_of_lines_displayed: INTEGER_32 feature -- Comparison frozen deep_equal (a: 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: 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: VIEWER_CONTENT): 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: VIEWER_CONTENT): 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: 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: VIEWER_CONTENT): 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 -- Removal wipe_out -- Erase data. -- (from B_345_TREE) feature -- Duplication copy (other: VIEWER_CONTENT) -- 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: VIEWER_CONTENT) -- 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: VIEWER_CONTENT -- 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: VIEWER_CONTENT) -- 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: VIEWER_CONTENT -- 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: VIEWER_CONTENT -- 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: VIEWER_CONTENT -- 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 search_string (searched_string: READABLE_STRING_GENERAL) -- Search the text for the string searched_string. -- If the search was successful, `successful_search` is -- set to True and `found_string_line` & -- `found_string_character_position` are set. string_selected (start_selection: VIEWER_CURSOR; end_selection: VIEWER_CURSOR): STRING_32 require selections_attached: start_selection /= Void and end_selection /= Void right_order: start_selection < end_selection feature -- Element Change append_data (tl: like first_line) -- add tl at the end of the tree. -- (from B_345_TREE) require -- from B_345_TREE tl_not_linked: tl.next = Void and then tl.previous = Void ensure -- from B_345_TREE tl_linked: tl /= first_line implies (attached tl.previous as l_previous and then l_previous.next = tl) tl_has_key: tl.key /= Void tl_has_tree: tl.tree /= Void append_line (a_line: like first_displayed_line) -- Was declared in {VIEWER_CONTENT} as synonym of `extend`. require a_line_not_void: a_line /= Void extend (a_line: like first_displayed_line) -- Was declared in {VIEWER_CONTENT} as synonym of `append_line`. require a_line_not_void: a_line /= Void prepend_data (tl: like first_line) -- add tl at the beginning of the tree. -- (from B_345_TREE) require -- from B_345_TREE tl_not_linked: tl.next = Void and then tl.previous = Void ensure -- from B_345_TREE tl_linked: tl /= last_line implies (attached tl.next as l_next and then l_next.previous = tl) tl_has_key: tl.key /= Void tl_has_tree: tl.tree /= Void prepend_line (a_line: like first_displayed_line) require a_line_not_void: a_line /= Void set_first_data (tl: like first_line) -- (from B_345_TREE) set_last_data (tl: like first_line) -- (from B_345_TREE) 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: 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 feature -- Search status found_string_character_position: INTEGER_32 -- Position of the first character within the line of the last string. -- Valid only if `successful_search` is set. found_string_line: INTEGER_32 -- Line number of the last found string. -- Valid only if `successful_search` is set. successful_search: BOOLEAN -- Was the last call to `search_string` successful? feature -- test features after: BOOLEAN current_line: VIEWER_LINE forth require not_after: not after go_i_th (i: INTEGER_32) require valid_i: i >= 1 and then i <= count start require count >= 1 invariant -- from B_345_TREE first_data_valid: attached first_line as l_first_data implies l_first_data.is_valid last_data_valid: attached last_line as l_last_data implies l_last_data.is_valid -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) 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 VIEWER_CONTENT -- Generated by Eiffel Studio --
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