Compatible Array Sizes for Basic Operations ..................
2-25
Inputs with Compatible Sizes .............................
2-25
Inputs with Incompatible Sizes ............................
2-27
Examples ............................................
2-27
Array Comparison with Relational Operators ..................
2-29
Array Comparison .....................................
2-29
Logic Statements ......................................
2-31
Operator Precedence ......................................
2-32
Precedence of AND and OR Operators ......................
2-32
Overriding Default Precedence ............................
2-32
Average Similar Data Points Using a Tolerance ................
2-34
Group Scattered Data Using a Tolerance ......................
2-36
Bit-Wise Operations ....................................... 2-38
Perform Cyclic Redundancy Check ..........................
2-44
Conditional Statements ...................................
2-47
Loop Control Statements ..................................
2-49
Regular Expressions ......................................
2-51
What Is a Regular Expression? ............................
2-51
Steps for Building Expressions ............................
2-52
Operators and Characters ...............................
2-55
Lookahead Assertions in Regular Expressions .................
2-63
Lookahead Assertions ...................................
2-63
Overlapping Matches ...................................
2-63
Logical AND Conditions .................................
2-64
Tokens in Regular Expressions ..............................
2-66
Introduction ..........................................
2-66
Multiple Tokens .......................................
2-68
Unmatched Tokens .....................................
2-69
Tokens in Replacement Text ..............................
2-69
Named Capture .......................................
2-70
Dynamic Regular Expressions ..............................
2-72
Introduction ..........................................
2-72
Dynamic Match Expressions — (??expr) .....................
2-73
Commands That Modify the Match Expression — (??@cmd) ......
2-73
Commands That Serve a Functional Purpose — (?@cmd) ........
2-74
Commands in Replacement Expressions — ${cmd} ............
2-76
Comma-Separated Lists ...................................
2-79
What Is a Comma-Separated List? .........................
2-79
Generating a Comma-Separated List ........................
2-79
Assigning Output from a Comma-Separated List ...............
2-81
Assigning to a Comma-Separated List .......................
2-81
How to Use the Comma-Separated Lists .....................
2-82
vi
Contents