xlateStrSplit – Need example how should work

New to Cloverleaf engine and trying to learn the string actions and how they work. I have checked user guide and not seeing any examples for many of the commonly used string actions.

I want to split a simple date with hyphens: 2022-02-05

I wish to use the String action xlateStrSplit but receiving error.

I am using this syntax in the String Action Content window:

xlateStrSplit –

and on the destination I have three variables to dump the values into:

@year

@month

@day

Getting error:

Error Info ‘Tcl callout error
xlateStrSplit -:

errorCode: NONE

errorInfo:
error storing into “@month”:
while executing
“xpmstore $xlateId $outAdd $xlateConstType [lindex $_splittedResultList $_listIndex] -type $outType”
(procedure “xlateStrSplit” line 20)
invoked from within
“xlateStrSplit -”
<End of errorInfo>
‘ error in ‘XLATE UIH_LS162_DFT.xlt’ under ‘_HCI_static_route_’ to ‘IB_UIH_TEST_DFT’;

Screenshot attached of my String action.

What is correct syntax to use the xlateStrSplit function using hyphen as delimiter.