Regular Expressions 101

^start of line

Group 1([^;]+)

Negated Character Class[^;]+

+matches at least one character outside the set below:

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

Group 2([^;]+)

Negated Character Class[^;]+

+matches at least one character outside the set below:

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

Group 3((?:\d{4}|\?{4})-(?:\d\d|\?{2})-(?:\d\d|\?{2}))

Non-Capturing Group(?:\d{4}|\?{4})

1st Alternative\d{4}

\d{4}a digit, repeated exactly 4 times

2nd Alternative\?{4}

\?{4}the literal ? (63₁₀ / 77₈ / 3F₁₆) , repeated exactly 4 times

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Non-Capturing Group(?:\d\d|\?{2})

1st Alternative\d\d

\da digit

2nd Alternative\?{2}

\?{2}the literal ? (63₁₀ / 77₈ / 3F₁₆) , repeated exactly 2 times

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Non-Capturing Group(?:\d\d|\?{2})

1st Alternative\d\d

\da digit

2nd Alternative\?{2}

\?{2}the literal ? (63₁₀ / 77₈ / 3F₁₆) , repeated exactly 2 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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

^([^;]+);([^;]+);((?:\d{4}|\?{4})-(?:\d\d|\?{2})-(?:\d\d|\?{2}))$

bla;blubb;1234-45-34
sfsdf;sdfsf;2432-09-??
sffd;sdfsd;3423-??-??
df sdf; sdd sd sssssfdsw;????-??-??