Regular Expressions 101

^start of line

Group 1(Pag. del \d{2}\/\d{2}\/\d{2} ora \d{2}:\d{2} presso: |)

1st AlternativePag. del \d{2}\/\d{2}\/\d{2} ora \d{2}:\d{2} presso:

Pagthe literal text Pag (case sensitive)

.any Unicode character (except for line terminators)

del the literal text del (case sensitive)

\d{2}a Unicode decimal digit, repeated exactly 2 times

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\d{2}a Unicode decimal digit, repeated exactly 2 times

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\d{2}a Unicode decimal digit, repeated exactly 2 times

ora the literal text ora (case sensitive)

\d{2}a Unicode decimal digit, repeated exactly 2 times

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\d{2}a Unicode decimal digit, repeated exactly 2 times

presso: the literal text presso: (case sensitive)

2nd Alternative — matches an empty string

Group 2(.*?)

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

the literal (32₁₀ / 40₈ / 20₁₆)

Group 3(IT\*.*)?

?repeats the group contents below at most once:

ITthe literal text IT (case sensitive)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

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

Group 4(FR|LU|IT|ITA)

1st AlternativeFR

FRthe literal text FR (case sensitive)

2nd AlternativeLU

LUthe literal text LU (case sensitive)

3rd AlternativeIT

ITthe literal text IT (case sensitive)

4th AlternativeITA

ITAthe literal text ITA (case sensitive)

Cartathe literal text Carta (case sensitive)

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

$end of line

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

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Search reference

Regular Expression

^(Pag. del \d{2}\/\d{2}\/\d{2} ora \d{2}:\d{2} presso: |)(.*?) (IT\*.*)?(FR|LU|IT|ITA) Carta.*$

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