Regular Expressions 101

1st Alternative<a[\S\s]+?<\/a>(*SKIP)(*FAIL)

<athe literal text <a (case sensitive)

Character Class[\S\s]+?

+?matches at least one character from the set below:

\Sany non-whitespace character

\sany whitespace character

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

a>the literal text a> (case sensitive)

(*SKIP)acts like (*PRUNE), but the next unanchored match attempt starts where (*SKIP) was reached instead of at the next subject character

(*FAIL)forces the current match attempt to fail at this position

2nd Alternative\bas\b

\ban ASCII word boundary

asthe literal text as (case sensitive)

\ban ASCII word boundary

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

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Search reference

Regular Expression

<a[\S\s]+?<\/a>(*SKIP)(*FAIL)|\bas\b

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