Using regular expressions when reading a file

[Alexander Zhirov]

On Thursday, 5 May 2022 at 18:15:28 UTC, H. S. Teoh wrote:
> 	auto m = matchFirst(line, p_property);

Yes, it looks more attractive. Thanks! I just don't quite 
understand how `matchFirst` works. I seem to have read the 
[description](https://dlang.org/phobos/std_regex.html#Captures), 
but I can't understand something.

And yet I have to manually remove the line break:
```sh
["host":"192.168.100.236\n", "dbname":"belpig\n", 
"user":"postgres", "port":"5432\n"]
```