Is it possible to add a descriptor with regular expressions in Computer vision

Is it possible to add a descriptor with regular expressions in Computer vision.
example : In the below descriptor, the Rowcell is random and it changes on each exeuction.
Also ,I dont have any other anchors in place.
Is there any way to handle this?

"Target: TableCell (12,272,1236,98)" +
"ColumnNumber: 2 (46,272,50,17)" +
"RowContains: ... (96,353,180,17) RowCell: 3"