By Apple Computer Inc
This booklet is a necessary reference for someone utilizing AppleScript to switch present scripts or write new ones. It presents many pattern scripts and discusses complex themes equivalent to writing command handlers for script purposes, the scope of script variables and houses declared at assorted degrees in a script, and inheritance and delegation between script items.
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Additional info for AppleScript Language Guide
LITERAL EXPRESSIONS yes no ask plain bold italic For a complete listing of the constants AppleScript provides, see Table A-3 (page 358) and Table A-2 (page 355). PROPERTY Class The class identifier for the object. This property is read-only, and its value is always constant. ELEMENTS None 60 Common Value Class Definitions 5/5/99 Apple Computer, Inc. C H A P T E R 3 Values and Constants OPERATORS The operators that take values of class Constant as operands are &, =, ≠, and As. COERCIONS HANDLED AppleScript supports coercion of a constant to a single-item list.
All value classes fall into one of two categories: simple values, such as integers and real numbers, which do not contain other values, or composite values, such as lists and records, which do. Each of the value class definitions in this chapter provides information in one or more of the following categories: ■ “Literal Expressions” (page 52) ■ “Properties” (page 53) ■ “Elements” (page 54) ■ “Operators” (page 54) ■ “Commands Handled” (page 55) ■ “Reference Forms” (page 55) ■ “Coercions Supported” (page 55) In addition, some value class definitions end with notes that provide additional information.
For a description of how AppleScript handles century’s end dates such as the year 2000, see “Working With Dates at Century Boundaries” (page 235). LITERAL EXPRESSIONS The following expressions show several options for specifying a date. date "7/25/53, 12:06 PM" date "8/9/50, 12:06" date "8/9/50, 17:06" date "7/16/70" date "12:06" date "Sunday, December 12, 1954 12:06 pm" 62 Common Value Class Definitions 5/5/99 Apple Computer, Inc. C H A P T E R 3 Values and Constants PROPERTIES Class The class identifier for the object.
AppleScript Language Guide by Apple Computer Inc