> For the complete documentation index, see [llms.txt](https://documentation.astera.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://documentation.astera.com/astera-data-stack-v6/functions/string/rsplit-string.md).
# RSplit (String)
| **Name** | ***RSplit*** |
| ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Syntax | RSplit (String str, Integer maxTokens, String delimiter, Integer returnToken) |
| Purpose | To split a string into chunks, specified by an integer value of a ‘maxTokens’ variable, and delimited by a ‘delimiter’ string value. Returns specified token at index ‘returnToken’, counting from the right. (**Note:** The integer value, 0, will return the first split chunk) |
| Description | Splits a string into a maximum ‘maxTokens’ tokens delimited by ‘delimiter’. Returns token at index ‘returnToken’ counting from the right. |
| Return Type | String |
| Parameters | str \[System.String] – The string to be broken into tokens
maxTokens \[System.Int32] – The maximum number of tokens to split the string into. -1 is taken to unlimited. The number should be greater than the index of the token to be returned
delimiter \[System.String]
returnToken \[System.Int32] – The index (Counting from right to left) of the token generating by splitting the string
|
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**Example**
In this example, we are passing the required parameters to the function transformation object using a *Variables* object.
Where,
*str*: A-B-C-D-E-F-G-H-I
*maxTokens =* 3
*delimiter =* - (**Note:** Since the string values in our case are separated using “-”, our delimiter value will also be “-”. This value can be replaced with other delimiters, depending on the data format)
*returnToken* = 2 (**Note:** We are using the value 2, as we want to return the third part of the split string, from the right)
.png)
Right-click on the function transformation object and select *Preview Output.* You can see that Astera Data Stack has returned the third part of the split string, counting from the right.
.png)
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