Regular expression pattern
g
lobal
i
gnore case
m
ultiline
s
dotAll
u
nicode
Try a common pattern
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Email address
URL
US phone number
Date (YYYY-MM-DD)
Digits only
Hashtag
Test text
Contact Jane Doe at jane.doe@example.com or John Smith at john_smith@company.org. Call (555) 123-4567. Meeting on 2026-10-15. #regex #testing
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