May 2003
Intermediate to advanced
566 pages
27h 29m
English
Content preview from Cocoa in a Nutshell
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Name
NSScriptObjectSpecifier — Mac OS X 10.0
Synopsis
This is an abstract class for classes of objects known as
object specifiers
. An object specifier is a
representation of a scripting language reference form that is used to
identify objects in relation to container objects. Object specifiers
are used to represent the portions of an AppleScript used to identify
the object that is the target of a script command. For example, in
the AppleScript get word 3 of paragraph 15 of the front document there are three object specifiers: word 3, paragraph 15, and front document.
Object specifiers are nested, where more general specifiers are
evaluated to provide an evaluation context for their nested child
specifier. In the example, the specifier front paragraph is evaluated first to provide a container in
which the specifier paragraph 15 can be evaluated.
The scripting system evaluates object specifiers in this way to
determine what object in the application should be the recipient of
the command being executed.
The Foundation framework implements several subclasses of
NSScriptObjectSpecifier. These subclasses
implement object specifiers that represent the various AppleScript
language constructs (reference forms) used to identify the targets of
script commands.
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@interface NSScriptObjectSpecifier : NSObject <NSCoding>
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// Initializers
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- (id)initWithContainerClassDescription:(NSScriptClassDescription ... |
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.