Regular Expressions 101

Explanation
Pro

^start of line

\s+any whitespace character, repeated at least once

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group id(?<id>[0-9]+)

Character Class[0-9]+

+matches at least one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

"the literal " (34₁₀ / 42₈ / 22₁₆)

\s+any whitespace character, repeated at least once

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group path(?<path>.+)

.+any character (except for line terminators), repeated at least once

"the literal " (34₁₀ / 42₈ / 22₁₆)

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

^\s+"(?<id>[0-9]+)"\s+"(?<path>.+)"$

"LibraryFolders"
{
	"TimeNextStatsReport"		"1613549278"
	"ContentStatsID"		"8305207799611222323"
	"1"		"E:\\Games\\SteamLibrary"
}