Regular Expressions 101

Pro

1st AlternativeP(([1-9][0-9]{0,3})|0)W

Pthe literal P (80₁₀ / 120₈ / 50₁₆) (case sensitive)

Group 1(([1-9][0-9]{0,3})|0)

1st Alternative([1-9][0-9]{0,3})

Group 2([1-9][0-9]{0,3})

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

Character Class[0-9]{0,3}

{0,3}matches between 0 and 3 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

2nd Alternative0

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Wthe literal W (87₁₀ / 127₈ / 57₁₆) (case sensitive)

2nd AlternativeP([1-9][0-9]?Y)?(([1-9]|1[012])M)?(0|[1-9]|[12][0-9]|3[01])D

Pthe literal P (80₁₀ / 120₈ / 50₁₆) (case sensitive)

Group 3([1-9][0-9]?Y)?

?repeats the group contents below at most once:

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

Character Class[0-9]?

?matches at most one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Ythe literal Y (89₁₀ / 131₈ / 59₁₆) (case sensitive)

Group 4(([1-9]|1[012])M)?

?repeats the group contents below at most once:

Group 5([1-9]|1[012])

1st Alternative[1-9]

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

2nd Alternative1[012]

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

Character Class[012]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

Mthe literal M (77₁₀ / 115₈ / 4D₁₆) (case sensitive)

Group 6(0|[1-9]|[12][0-9]|3[01])

1st Alternative0

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

2nd Alternative[1-9]

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

3rd Alternative[12][0-9]

Character Class[12]

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

Character Class[0-9]

0-9one character from 0 (48₁₀) to 9 (57₁₀)

4th Alternative3[01]

3the literal 3 (51₁₀ / 63₈ / 33₁₆)

Character Class[01]

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

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

P(([1-9][0-9]{0,3})|0)W|P([1-9][0-9]?Y)?(([1-9]|1[012])M)?(0|[1-9]|[12][0-9]|3[01])D

New

P28D