question: public static String updateLabels ( String instList , LocalVariableMap labelValueMapping ) throws DMLRuntimeException { if ( ! instList . contains ( Lop . VARIABLE_NAME_PLACEHOLDER ) ) return instList ; StringBuilder updateInstList = new StringBuilder ( ) ; String [ ] ilist = instList . split ( Lop . INSTRUCTION_DELIMITOR ) ; for ( int i = 0 ; i < ilist . length ; i ++ ) { if ( i > 0 ) updateInstList . append ( Lop . INSTRUCTION_DELIMITOR ) ; updateInstList . append ( updateInstLabels ( ilist [ i ] , labelValueMapping ) ) ; } return updateInstList . toString ( ) ; }
target:  Takes a delimited string of instructions, and replaces ALL placeholder labels  (such as ##mVar2## and ##Var5##) in ALL instructions.