Number of input and output field

Number of input field	:	One
Number of output field	:	Three

This transformation function is used to extract the head, middle, and tail parts of a text based on token positions.

The parameters of this function are:

• token
  The regex token character used as a separator (comma , if not specified).
• head index
  The ending token index for the head portion of the text. Indexing is 1-based. If the value is negative, the index is counted from right to left.
• tail index
  The starting token index for the tail portion of the text. Indexing is 1-based. If the value is negative, the index is counted from right to left.

For example, when the input value is: http://www.solusi247.com/index.php

token	head index	tail index	Head	Middle	Tail
/	1	3	http:	/www.solusi247.com	index.php
/	1	-1	http:	/www.solusi247.com	index.php
/	1	4	http:	/www.solusi247.com/index.html	null