Community Patterns

Community Library Entry

1

Regular Expression
Created·2016-06-01 05:38
Flavor·PCRE (Legacy)

/
(?:(?:(?:[a-z\x{00a1}-\x{ffff}0-9]+-?)*[a-z\x{00a1}-\x{ffff}0-9]+)(?:\.(?:[a-z\x{00a1}-\x{ffff}0-9]+-?)*[a-z\x{00a1}-\x{ffff}0-9]+)*(?:\.([a-z\x{00a1}-\x{ffff}]{2,})))(?::\d{2,5})?(?:\/[^\s]*)?
/
g
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Description

This regexp matches urls, but causes catastrophic backtrack

Submitted by anonymous