Issue importing popular code snippet

I was trying to import this code snippet, which I haven’t used before, but it appears that many people have successfully used it in the past, it apparently has not been updated since March of this year.

On import, I got the following message: “An error occurred when processing the import files.”

I tried manually entering the php from the snippet, and I got this error:

The code snippet you are trying to save produced a fatal error on line 622:

syntax error, unexpected '.', expecting identifier (T_STRING)syntax error, unexpected '.', expecting identifier (T_STRING)"

Line 622-624 are:

if (preg_match('/url('(\.*?)')/',$css_block,$matches)) {
	$retval[] = $matches[1];
}

I saw this topic had a similar parse issue. But this issue persists with version 2.14.5

Any thoughts?