Substitute(str as String, arg0 as String, arg1 = "" as String, arg2 = "" as String, arg3 = "" as String) as String Replaces all instances of {0} or ^0 in str with arg0. Similarly, replaces all instances of {1} or ^1 with arg1, {2} or ^2 with arg2, and {3} or ^3 with arg3.
Example
thing = "book" color = "red" print Substitute("My {0} is {1}.", thing, color) ' prints "My book is red."