Regular Expressions 101

Pro

<Athe literal text <A (case insensitive)

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

classthe literal text class (case insensitive)

\s*?any whitespace character, repeated any number of times

=the literal = (61₁₀ / 75₈ / 3D₁₆)

Group 1(['\"])?

?repeats the group contents below at most once:

Character Class['\"]

'the literal ' (39₁₀ / 47₈ / 27₁₆)

\"the literal " (34₁₀ / 42₈ / 22₁₆)

Non-Capturing Group(?:whtbigheader)

whtbigheaderthe literal text whtbigheader (case insensitive)

\1the text saved by group 1

Negated Character Class[^>]*

*matches any number of characters outside the set below:

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Group 2(.*?)

.*?any character (except for line terminators), repeated any number of times

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

A>the literal text A> (case insensitive)

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

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25 tokens

<A.+?class\s*?=(['\"])?(?:whtbigheader)\1[^>]*>(.*?)<\/A>

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