NSScriptingComparisonMethods

A collection of methods useful for comparing script objects. スクリプトオブジェクトを比較するために有用なメソッドのいちコレクション。

Overview 概要

Often the correct way to compare two objects for scripting is different from the correct way to compare objects programmatically. This informal protocol defines a set of methods that can be implemented to perform a comparison appropriate for scripting that is independent of other methods for doing comparisons.

Cocoa scripting uses these scripting comparison methods, if available, in the process of evaluating specifier tests. If the first object being tested implements the appropriate method for the comparison operation, it will be used. If the first object doesn’t implement the appropriate method but the second object implements the inverse, the inverted comparison is performed. For example, instead of determining whether object one is less than object two, Cocoa determines whether object two is greater than object one (but only for the operations is equal, is less than or equal, is less than, is greater than or equal, or is greater than). If neither of the objects implements the appropriate method, Cocoa falls back on similar comparison operators in the protocol NSComparisonMethods (but again, only for the operations is equal, is less than or equal, is less than, is greater than or equal, or is greater than).

Cocoa provides default implementations of these scripting comparison methods for NSString and NSAttributedString. You should define implementations of these methods for any of your scriptable objects that need to perform comparisons for scripting purposes that are different than the comparisons provided by NSComparisonMethods. If none require different comparison methods, you can implement only the methods you need from NSScriptingComparisonMethods.

Topics 話題

Performing comparisons 比較を実行する

func scriptingBegins(with: Any) -> Bool
Returns true if, in a scripting comparison, the compared object matches the beginning of object.
func scriptingContains(Any) -> Bool
Returns true if, in a scripting comparison, the compared object contains object.
func scriptingEnds(with: Any) -> Bool
Returns true if, in a scripting comparison, the compared object matches the end of object.
func scriptingIsEqual(to: Any) -> Bool
Returns true if, in a scripting comparison, the compared object is equal to object.
func scriptingIsGreaterThan(Any) -> Bool
Returns true if, in a scripting comparison, the compared object is greater than object.
func scriptingIsGreaterThanOrEqual(to: Any) -> Bool
Returns true if, in a scripting comparison, the compared object is greater than or equal to object.
func scriptingIsLessThan(Any) -> Bool
Returns true if, in a scripting comparison, the compared object is less than object.
func scriptingIsLessThanOrEqual(to: Any) -> Bool
Returns true if, in a scripting comparison, the compared object is less than or equal to object.

See Also 参照

NSObject Script Support NSObjectスクリプトサポート

NSComparisonMethods
A collection of default comparison methods useful for performing specifier tests. 指定子テストを実行するのに有用な省略時の比較メソッドのいちコレクション。
NSScriptKeyValueCoding
A collection of methods that provide additional capabilities for working with key-value coding. キー値コーディングを扱うための追加能力を提供するメソッドのいちコレクション。
NSScriptObjectSpecifiers
A collection of methods providing additional object specifier functionality. 追加のオブジェクト指定子機能を提供するいちコレクション。
class NSScriptCoercionHandler
A mechanism for converting one kind of scripting data to another. ある種のスクリプティングデータを別のものに変換するための仕組み。
class NSScriptExecutionContext
The context in which the current script command is executed. そこにおいて現在のスクリプトコマンドが執行されるところの前後関係。

Related Documentation 関連文書

Cocoa Scripting Guide