GetMatchRegEx

Name	GetMatchRegEx
Syntax	GetMatchRegEx (String pattern, String str)
Purpose	To return a result if a match was found. Otherwise, returns an empty string.
Description	Scans the string for an occurrence of text matching the specified regular expression.
Return Type	String
Parameters	pattern [System.String] – Regular expression pattern to match str [System.String] – String to search for a match

Example

In this example, we will pass the required parameters to the function transformation object using a Variables object.

Where,

Pattern = ^H[\S]{0,4}|$

String = HelloWorld!

Note: The specified regular expression will look for and match a string which begins with “H” (case sensitive). Next, it will match any character that is not a whitespace character in the next 0 to 4 characters. Finally, the “$” is used to end the string. Therefore, the returned output should be “Hello”.

In the output window, you can see that Astera has returned a string value, as the regular expression pattern has been matched.