Regular Expressions 101

<athe literal text <a (case sensitive)

Non-Capturing Group(?:\s+href="(\S+)"|\s+id="download"(?P<B>\B)){1,2}

{1,2}repeats the group contents below between 1 and 2 times:

1st Alternative\s+href="(\S+)"

\s+any whitespace character, repeated at least once

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

Group 1(\S+)

\S+any non-whitespace character, repeated at least once

"the literal " (34₁₀ / 42₈ / 22₁₆)

2nd Alternative\s+id="download"(?P<B>\B)

\s+any whitespace character, repeated at least once

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

Group B(?P<B>\B)

\Bnot an ASCII word boundary

(?P=B)the text saved by group B

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

<a(?:\s+href="(\S+)"|\s+id="download"(?P<B>\B)){1,2}(?P=B)

New

<a id="download" href="https://сайт.mp4">Click here to download</a>
<a href="https://сайт.mp4"  id="download" >Click here to download</a>
<a id="download1" href="https://сайт.mp4">Click here to download</a>
<a href="https://сайт.mp4"  id="download1" >Click here to download</a>

Regular Expression

Extraction