Regular Expressions 101

Pro

\ban ASCII word boundary

Non-Capturing Group(?:(d)|(D))

1st Alternative(d)

Group 1(d)

dthe literal d (100₁₀ / 144₈ / 64₁₆) (case sensitive)

2nd Alternative(D)

Group 2(D)

Dthe literal D (68₁₀ / 104₈ / 44₁₆) (case sensitive)

Non-Capturing Group(?:(a)|(A))

1st Alternative(a)

Group 3(a)

athe literal a (97₁₀ / 141₈ / 61₁₆) (case sensitive)

2nd Alternative(A)

Group 4(A)

Athe literal A (65₁₀ / 101₈ / 41₁₆) (case sensitive)

Non-Capturing Group(?:(t)|(T))

1st Alternative(t)

Group 5(t)

tthe literal t (116₁₀ / 164₈ / 74₁₆) (case sensitive)

2nd Alternative(T)

Group 6(T)

Tthe literal T (84₁₀ / 124₈ / 54₁₆) (case sensitive)

Non-Capturing Group(?:(e)|(E))

1st Alternative(e)

Group 7(e)

ethe literal e (101₁₀ / 145₈ / 65₁₆) (case sensitive)

2nd Alternative(E)

Group 8(E)

Ethe literal E (69₁₀ / 105₈ / 45₁₆) (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

Detailed match information will be displayed here automatically.

25 tokens

\b(?:(d)|(D))(?:(a)|(A))(?:(t)|(T))(?:(e)|(E))\b

New

This Date is a DATE that is daTe and date.
But dated should not be replaced, and nor should sedate.

This Date is a DATE that is daTe and date.
But dated should not be replaced, and nor should sedate.