Regular Expressions 101

Explanation

Pro

Non-Capturing Group(?:J(?:an(?:uar)?|u[nl]i?)|Fe(?:b(?:ruar)?)?|M(?:ärz?|ai)|A(?:pr(?:il)?|ug(?:ust)?)|Sep(?:tember)?|(?:Nov|Dez)(?:ember)?|Okt(?:ober)?)

1st AlternativeJ(?:an(?:uar)?|u[nl]i?)

Jthe literal J (74₁₀ / 112₈ / 4A₁₆) (case sensitive)

Non-Capturing Group(?:an(?:uar)?|u[nl]i?)

1st Alternativean(?:uar)?

anthe literal text an (case sensitive)

Non-Capturing Group(?:uar)?

?repeats the group contents below at most once:

uarthe literal text uar (case sensitive)

2nd Alternativeu[nl]i?

uthe literal u (117₁₀ / 165₈ / 75₁₆) (case sensitive)

Character Class[nl]

nthe literal n (110₁₀ / 156₈ / 6E₁₆) (case sensitive)

lthe literal l (108₁₀ / 154₈ / 6C₁₆) (case sensitive)

i?optionally matches the literal i (105₁₀ / 151₈ / 69₁₆) (case sensitive)

2nd AlternativeFe(?:b(?:ruar)?)?

Fethe literal text Fe (case sensitive)

Non-Capturing Group(?:b(?:ruar)?)?

?repeats the group contents below at most once:

bthe literal b (98₁₀ / 142₈ / 62₁₆) (case sensitive)

Non-Capturing Group(?:ruar)?

?repeats the group contents below at most once:

ruarthe literal text ruar (case sensitive)

3rd AlternativeM(?:ärz?|ai)

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

Non-Capturing Group(?:ärz?|ai)

1st Alternativeärz?

ärthe literal text är (case sensitive)

z?optionally matches the literal z (122₁₀ / 172₈ / 7A₁₆) (case sensitive)

2nd Alternativeai

aithe literal text ai (case sensitive)

4th AlternativeA(?:pr(?:il)?|ug(?:ust)?)

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

Non-Capturing Group(?:pr(?:il)?|ug(?:ust)?)

1st Alternativepr(?:il)?

prthe literal text pr (case sensitive)

Non-Capturing Group(?:il)?

?repeats the group contents below at most once:

ilthe literal text il (case sensitive)

2nd Alternativeug(?:ust)?

ugthe literal text ug (case sensitive)

Non-Capturing Group(?:ust)?

?repeats the group contents below at most once:

ustthe literal text ust (case sensitive)

5th AlternativeSep(?:tember)?

Septhe literal text Sep (case sensitive)

Non-Capturing Group(?:tember)?

?repeats the group contents below at most once:

temberthe literal text tember (case sensitive)

6th Alternative(?:Nov|Dez)(?:ember)?

Non-Capturing Group(?:Nov|Dez)

1st AlternativeNov

Novthe literal text Nov (case sensitive)

2nd AlternativeDez

Non-Capturing Group(?:ember)?

7th AlternativeOkt(?:ober)?

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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

(?:J(?:an(?:uar)?|u[nl]i?)|Fe(?:b(?:ruar)?)?|M(?:ärz?|ai)|A(?:pr(?:il)?|ug(?:ust)?)|Sep(?:tember)?|(?:Nov|Dez)(?:ember)?|Okt(?:ober)?)

New

Januar Jan
Februar Feb 
März Mär
April Apr
Mai
Jun  Juni
Juli Jul
August Aug
Sep September
Okt Oktober
Nov November
Dez Dezember

Extraction

Januar Jan
Februar Feb 
März Mär
April Apr
Mai
Jun  Juni
Juli Jul
August Aug
Sep September
Okt Oktober
Nov November
Dez Dezember