regex101: Python Match Workspace

1st AlternativeJan(uary)?

Janthe literal text Jan (case sensitive)

Group 2(uary)?

?repeats the group contents below at most once:

uarythe literal text uary (case sensitive)

2nd AlternativeFeb(ruary)?

Febthe literal text Feb (case sensitive)

Group 3(ruary)?

?repeats the group contents below at most once:

ruarythe literal text ruary (case sensitive)

3rd AlternativeMar(ch)?

Marthe literal text Mar (case sensitive)

Group 4(ch)?

?repeats the group contents below at most once:

chthe literal text ch (case sensitive)

4th AlternativeApr(il)?

Aprthe literal text Apr (case sensitive)

Group 5(il)?

?repeats the group contents below at most once:

ilthe literal text il (case sensitive)

5th AlternativeMay

Maythe literal text May (case sensitive)

6th AlternativeJun(e)?

Junthe literal text Jun (case sensitive)

Group 6(e)?

?repeats the group contents below at most once:

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

7th AlternativeJul(y)?

Julthe literal text Jul (case sensitive)

Group 7(y)?

?repeats the group contents below at most once:

ythe literal y (121₁₀ / 171₈ / 79₁₆) (case sensitive)

8th AlternativeAug(ust)?

Augthe literal text Aug (case sensitive)

Group 8(ust)?

?repeats the group contents below at most once:

ustthe literal text ust (case sensitive)

9th AlternativeSep(tember)?

Septhe literal text Sep (case sensitive)

Group 9(tember)?

?repeats the group contents below at most once:

temberthe literal text tember (case sensitive)

10th AlternativeOct(ober)?

Octthe literal text Oct (case sensitive)

Group 10(ober)?

?repeats the group contents below at most once:

oberthe literal text ober (case sensitive)

11th AlternativeNov(ember)?

Novthe literal text Nov (case sensitive)

Group 11(ember)?

?repeats the group contents below at most once:

emberthe literal text ember (case sensitive)

12th Alternative Dec(ember)?

Decthe literal text Dec (case sensitive)

Group 12(ember)?

?repeats the group contents below at most once:

emberthe literal text ember (case sensitive)

Group 13(,?)

,?optionally matches the literal , (44₁₀ / 54₈ / 2C₁₆)

Group 14(\s\d{4})

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

Search reference

Regular Expression

(Jan(uary)?|Feb(ruary)?|Mar(ch)?|Apr(il)?|May|Jun(e)?|Jul(y)?|Aug(ust)?|Sep(tember)?|Oct(ober)?|Nov(ember)?|              Dec(ember)?)(,?)(\s\d{4})

Unit Tests

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