Regular Expressions 101

Non-Capturing Group(?:\bid="|(?!^)\G)

1st Alternative\bid="

\ban ASCII word boundary

id="the literal text id=" (case sensitive)

2nd Alternative(?!^)\G

Negative Lookahead(?!^)

^start of string

\Gstart of current search

Negated Character Class[^\s"]*

*matches any number of characters outside the set below:

\sany whitespace character

"the literal " (34₁₀ / 42₈ / 22₁₆)

\Kresets the starting point of the reported match. Any previously consumed characters are no longer included in the final match

\s+any whitespace character, repeated at least once

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?:\bid="|(?!^)\G)[^\s"]*\K\s+

<div id="transcending intellectual limitations">
	<div id="tr ans">
		<div id="hel lo">

		</div>
	</div>
</div>