regex101: Python Substitution Workspace

1st Alternative^\D*(?P<from_day>[12]\d|3[01]|0?[1-9])[.\s,■-]+(?P<from_month>1[0-2]|0?[1-9])[.\s,■-]*(?P<until_day>[12]\d|3[01]|0?[1-9])[.\s,■-]+(?P<until_month>1[012]|0?[1-9]).*

^start of line

\D*any character that is not a Unicode decimal digit, repeated any number of times

Group from_day(?P<from_day>[12]\d|3[01]|0?[1-9])

1st Alternative[12]\d

Character Class[12]

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

\da Unicode decimal digit

2nd Alternative3[01]

3the literal 3 (51₁₀ / 63₈ / 33₁₆)

Character Class[01]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

3rd Alternative0?[1-9]

0?optionally matches the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[1-9]

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

Character Class[.\s,■-]+

+matches at least one character from the set below:

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\sa Unicode whitespace character

,the literal , (44₁₀ / 54₈ / 2C₁₆)

■the literal ■ (9632₁₀ / 22640₈ / 25A0₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group from_month(?P<from_month>1[0-2]|0?[1-9])

1st Alternative1[0-2]

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

Character Class[0-2]

0-2one character from 0 (48₁₀) to 2 (50₁₀)

2nd Alternative0?[1-9]

0?optionally matches the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[1-9]

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

Character Class[.\s,■-]*

*matches any number of characters from the set below:

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\sa Unicode whitespace character

,the literal , (44₁₀ / 54₈ / 2C₁₆)

■the literal ■ (9632₁₀ / 22640₈ / 25A0₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group until_day(?P<until_day>[12]\d|3[01]|0?[1-9])

1st Alternative[12]\d

Character Class[12]

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

\da Unicode decimal digit

2nd Alternative3[01]

3the literal 3 (51₁₀ / 63₈ / 33₁₆)

Character Class[01]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

3rd Alternative0?[1-9]

0?optionally matches the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[1-9]

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

Character Class[.\s,■-]+

+matches at least one character from the set below:

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\sa Unicode whitespace character

,the literal , (44₁₀ / 54₈ / 2C₁₆)

■the literal ■ (9632₁₀ / 22640₈ / 25A0₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group until_month(?P<until_month>1[012]|0?[1-9])

1st Alternative1[012]

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

Character Class[012]

2nd Alternative0?[1-9]

.*any Unicode character (except for line terminators), repeated any number of times

2nd Alternative.+

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

^\D*(?P<from_day>[12]\d|3[01]|0?[1-9])[.\s,■-]+(?P<from_month>1[0-2]|0?[1-9])[.\s,■-]*(?P<until_day>[12]\d|3[01]|0?[1-9])[.\s,■-]+(?P<until_month>1[012]|0?[1-9]).*|.+

New

28.11 16.12
"13.01 23,09"
01.08.-31.12
"01.01,-51.12"
01.08.-31.12.
01.08.-31.12.
01.01.-31.12.
01.08.-31.12.
01.01.-31.12.
"01,01.-31,12."
01083112
1.02 - 4.3

Substitution

\g<from_day>.\g<from_month>-\g<until_day>.\g<until_month>