Regular Expressions 101

1st Alternative(?:^\d{1,3}(?:\.?\d{3})*(?:,\d{2})?$)

Non-Capturing Group(?:^\d{1,3}(?:\.?\d{3})*(?:,\d{2})?$)

^start of line

\d{1,3}a digit, repeated between 1 and 3 times

Non-Capturing Group(?:\.?\d{3})*

*repeats the group contents below any number of times:

\.?optionally matches the literal . (46₁₀ / 56₈ / 2E₁₆)

\d{3}a digit, repeated exactly 3 times

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

?repeats the group contents below at most once:

,the literal , (44₁₀ / 54₈ / 2C₁₆)

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

$end of line

2nd Alternative(?:^\d{1,3}(?:,?\d{3})*(?:\.\d{2})?$)

Non-Capturing Group(?:^\d{1,3}(?:,?\d{3})*(?:\.\d{2})?$)

^start of line

\d{1,3}a digit, repeated between 1 and 3 times

Non-Capturing Group(?:,?\d{3})*

*repeats the group contents below any number of times:

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

\d{3}a digit, repeated exactly 3 times

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

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d{2}a digit, 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.

25 tokens

Regular Expression

(?:^\d{1,3}(?:\.?\d{3})*(?:,\d{2})?$)|(?:^\d{1,3}(?:,?\d{3})*(?:\.\d{2})?$)

New

1
1234
123456

1.234
123.456
1.234.567

1,23
12345,67
1234567,89

1.234,56
123.456,78
1.234.567,89

1
1234
123456

1.234
123.456
1.234.567

1,23
12345,67
1234567,89

1.234,56
123.456,78
1.234.567,89