Using Regular Expressions

 

 

 

Pattern Matching

Table C-1

Description of Special Characters in Regular Expressions

 

 

 

 

 

To…

Use…

Example

 

 

 

 

 

Exclude specified

[^]

When the caret (^)

 

values.

 

appears first within the

 

 

 

list of bracketed valid

 

 

 

values, it is used to

 

 

 

exclude all of the

 

 

 

characters that follow

 

 

 

it. For example, to

 

 

 

match ab or any

 

 

 

character other than 5,

 

 

 

enter:

 

 

 

ab[^5]

 

 

 

Otherwise, ^ represents

 

 

 

a literal character. For

 

 

 

example, to match ab^

 

 

 

or ab5, enter:

 

 

 

ab[5^]

 

 

 

 

Appendix C

357