Substring

The Substring function returns a substring from a specified string by using index positions.

Index positions start at 0.

Syntax

The Substring function has the following syntax:

String = Substring(Expression, Start, End)

The Substring function has the following parameters.

Table 1. Substring function parameters
Parameter	Format	Description
`Expression`	String	String to search for the substring.
`Start`	Integer	Starting character position of the substring.
`End`	Integer	Ending character position of the substring, plus one.

The substring returned by index positions.

The following example shows how to return a substring using index positions.

MyString = "This is a test.";
MySubstring = Substring(MyString, 0, 4);
Log(MySubstring);

This example prints the following message to the policy log:

Parser Log: This