Are my actions legal when decompiling software?

Question

Law in IT

The software for the information display system of the Soyuz TMA spacecraft (11F732 No. 219) has been published on the Internet. The program was published by Yu. A. Tyapchenko, the developer of this system, without specifying the type of license and any other legal information in the public domain on his personal Internet resource. I want to disassemble this software in order to study the logic of the main algorithms. I want to do this in order to implement a computer simulator of this spacecraft and subsequently publish this simulator in the public domain. Will I violate the law (Civil Code of the Russian Federation Article 1280) by decompiling this software?

Answer 1

If the license is not specified, then, in theory, everything is prohibited in general, including downloading and launching.
In general, the contacts on the site are indicated - if you are not sure, you can ask permission from the author directly. Maybe if he likes the goal - even there are sources.

Answer 2

There was, I remember such a case, a long time ago.
FreeBSD had some kind of script to update either the list of ports, or something else, which was used by almost everyone. It was written by some Hindu. The license was not specified. Once a Hindu decided that he was tired of the world and went there, that they had an analogue of a monastery - to meditate. The license is still missing. And then it turned out that if it is not specified, then it means "default deny", that is, everything that is not allowed is prohibited. The script has been rewritten.
If there are contacts of this chela - write to him, suddenly he will like the idea, well, or at least he will not mind.

Answer 3

Good evening.
Try starting with the following:
$re = '/<h1 [^>]+>(.*?)<\/h1>/s';

Answer 4

Your regular expression is suitable for a string with this pattern:
Extra slashes and a dot are any character, but not a newline.