Regular Expressions 101

Pro

1st Alternative\!\[.*?\]\(http[^)]*\)(*SKIP)(*FAIL)

\!the literal ! (33₁₀ / 41₈ / 21₁₆)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

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

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

httpthe literal text http (case insensitive)

Negated Character Class[^)]*

*matches any number of characters outside the set below:

)the literal ) (41₁₀ / 51₈ / 29₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

(*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\bvitae\b

\ban ASCII word boundary

vitaethe literal text vitae (case insensitive)

\ban ASCII word boundary

Global pattern flags

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

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

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25 tokens

\!\[.*?\]\(http[^)]*\)(*SKIP)(*FAIL)|\bvitae\b

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