Forum Post: how can i compare lines after match pattern in skill

Hello , I have 1 file which contains 2 parts.One part is the schematic hierachy tree.Another part is the layout hierachy tree.(looks like below) Based on this file, how can i compare the schematic hierachy tree VS layout hierachy tree by using skill? That is, eg . In schematic , "BlockA / Lib2 Cell2 schematic";In layout, it is "BlockA/ Lib2 Cell2 _2 " layout. How can i check this kind of errors by using the below file? schematic_layout_tree file: ######################## #CellView BlockA schematic# ######################## subcell: 3 sub cells Lib1 Cell1 schematic Lib2 Cell2 schematic Lib3 Cell3 schematic ######################## #CellView BlockB schematic# ######################## subcell: 2 sub cells LibB1 CellB1 schematic LibB2 CellB2 schematic ######################## #CellView BlockA layout# ######################## subcell: 3 sub cells Lib1 Cell1 layout Lib2 Cell2_2 layout Lib3 Cell3 layout ######################## #CellView BlockB layout# ######################## subcell: 2 sub cells LibB1 CellB1 layout LibB2 CellB2 layout