
Contents
Scripting Guide 4
Chapter 3 Script Syntax................................................................................... 33
General Script Syntax Information ................................................................ 34
General Syntax of a Script ........................................................................ 34
Structuring a Script.................................................................................... 34
Variables ....................................................................................................... 36
Using and Naming Variables..................................................................... 36
Character String Variables........................................................................ 36
Numeric Variables..................................................................................... 37
Arrays............................................................................................................ 38
Using and Naming Arrays ......................................................................... 38
Normal Arrays ........................................................................................... 39
Associative Arrays..................................................................................... 39
Date/Time...................................................................................................... 40
Epoch Seconds......................................................................................... 40
Midnight Seconds...................................................................................... 40
Date and Time Literals.............................................................................. 40
Expressions................................................................................................... 41
String Expressions .................................................................................... 41
Numeric Expressions ................................................................................ 41
Manifest Constants ....................................................................................... 42
List of Intrinsic Manifest Constants................................................................ 43
Manifest Error Constants .......................................................................... 43
Other Manifest Constants ......................................................................... 47
Operators ...................................................................................................... 50
Mathematical............................................................................................. 50
Boolean..................................................................................................... 50
Comment Statements ................................................................................... 51
Label Statements .......................................................................................... 52
Chapter 4 Regular Expressions ...................................................................... 53
Regular Expressions ..................................................................................... 54
Simple Regular Expressions..................................................................... 54
Bracket Expressions ................................................................................. 54
Subexpressions......................................................................................... 55
Regular Expressions Using Special Characters........................................ 55
Rules for Building Regular Expressions ........................................................ 56
Bracket Expressions ..................................................................................... 57
Matching Multiple Characters in Bracket Expressions .................................. 61
Alternation................................................................................................. 62
Expression Anchors—Restricting What Patterns Match ........................... 62
Precedence of Special Characters............................................................ 63
Special Characters in Regular Expressions .................................................. 64
Ordinary Characters...................................................................................... 65
Collating Elements ........................................................................................ 65
Chapter 5 Script Commands ........................................................................... 67
Conventions in this Chapter .......................................................................... 68
Script Command Types................................................................................. 68
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