Find a substring in a string and returning the index of the substring

[Andrew Rodriguez]

Hi guys, I need some help!
Is there any function in Rulex that gives the index of the position of a certain “substring” looking on another “string”?
I found the find function, but it just gives a True/False result about the presence of the substring.

Thank you in advance!

[Alessandro Piazza]

Hi Andrew!
The function that you are looking for is exactly the find one, but you must set the charpos parameter to a value different respect to the default of 0:

Otherwise it will give you only the True/False result.