ScanMOC( list )
returns a record containing the information encoded in the list list, the components of the result are the labels in list. If list is in MOC2 format (10000--format) the names of components are 30000--numbers, if it is in MOC3 format the names of components have yABC--format.
gap> ScanMOC( "y100y105ay110t28t22z" ); rec( y105 := [ 0 ], y110 := [ 28, 22 ] )
GAP 3.4.4