The $Expressions context item used to create regular expression classes and perform regular expression operations.

$Expressions Operations

Operation	Description
CreateExpression	Create a new regular expression Parameters string : pattern Output System.Text.RegularExpressions
CreateExpression	Create a new regular expression with options Parameters string : pattern System.Text.RegularExpressions.RegexOptions Output System.Text.RegularExpressions
IsMatch	Use a regular expression pattern to match an input Parameters string : input string : pattern Output System.Bool
IsMatch	Use a regular expression pattern to match an input using options Parameters string : input string : pattern System.Text.RegularExpressions.RegexOptions Output System.Bool
Replace	Use a regular expression used to replace the input with a pattern and replacement value Parameters string : input string : pattern string : replacement Output System.String
Replace	Use a regular expression used to replace the input with a pattern and replacement value using options. Parameters string : input string : pattern string : replacement System.Text.RegularExpressions.RegexOptions Output System.String
Split	Use a regular expression used to split the input by pattern matches. Parameters string : input string : pattern Output System.String[]
Split	Use a regular expression used to split the input by pattern matches using options. Parameters string : input string : pattern System.Text.RegularExpressions.RegexOptions Output System.String[]