Conversion of a text file to a specific text file

Attached are the input and output files, both in text format. The conversion logic is as follows: These set of statements will get converted to one statement, which I have stated below. assign n70 = n52 & G4gat; assign n71 = G4gat & keyinput0; assign n72 = n52 & keyinput0; assign n73 = n70 | n71; assign n74 = n73 | n72; BASIC_1 dummy_0(.A (n52), .B (G4gat), .C (keyinput0), .Y(n74)); The general format is: BASIC_1 dummy_0(.A (a), .B (b), .C (c), .Y(y)); a & b will get the values from the RHS of line 1 (n52 & G4gat) c will get value from the extreme rightmost data of line 2/line 3 (keyinput0) y will get the value after the assign statement of line 5 (n74) dummy_0 will be incremented to dummy_1 and dummy_2 on subsequent conversions. if conversion is correct, this should be the answer: BASIC_1 satwik_0(.A (n52), .B (G4gat), .C (keyinput0), .Y(n74)); Also these 5 lines should be REPLACED by this line. A general automation is required such that statements appearing in a text file are replaced. Normally 8,16,32,64 or 128 instances can be found in a given text file.