Regular Expressions 101

Pro

https://s2the literal text https://s2 (case sensitive)

Negated Character Class[^\s?]*

*matches any number of characters outside the set below:

\sa Unicode whitespace character

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

Positive Lookahead(?=\?lastmod=\d)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

lastmod=the literal text lastmod= (case sensitive)

\da Unicode decimal digit

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

Regular Expression

https://s2[^\s?]*(?=\?lastmod=\d)

<img src="https://s2.example.com/path/image0.jpg?lastmod=1625296911"><br>
<div><a style="background-image:url(https://s2.example.com/path/image1.jpg?lastmod=1625296911)"</a><a style="background-image:url(https://s2.example.com/path/image2.jpg?lastmod=1625296912)"></a><a style="background-image:url(https://s2.example.com/path/image3.jpg?lastmod=1625296912)"></a></div>