Since in the past, there are hardly any way efficiently able to produce the parser which is the critical step not to be avoided to convert the code from text format to tree format. It's only after the new technique that is found by extracting or known as "stealing" the grammer that long period of time, huge amount of money and manpower, and superfast computers are no longer required. Below is the example of what the programmers said after helping Ericsson to cut down their costs, time and manpower while convert complex proprietary language PLEX to program public telephone switches using the their new method.
"We recovered the PLEX grammar in two weeks, including tool construction, parser generation, and testing with 8-MLOC PLEX code, at a cost of US$ 25,000. Ericsson told us that a cutting-edge reengineering company had estimated this task earlier at a few million dollars. When we contacted this company, they told us that US$ 25,000 was nothing for such a grammar."
Hence with this new contribution, it's a break through of how programmers are able to help cutting down cost and time.