Regular Expressions 101

^start of line

Character Class[0-9\p{L}]

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\p{L}any Unicode letter

Character Class[0-9\p{L}-\.]{1,61}

{1,61}matches between 1 and 61 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\p{L}any Unicode letter

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[0-9\p{L}]

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\p{L}any Unicode letter

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[0-9\p{L}]

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\p{L}any Unicode letter

Character Class[\p{L}-]*

*matches any number of characters from the set below:

\p{L}any Unicode letter

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[0-9\p{L}]+

+matches at least one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\p{L}any Unicode letter

$end of line

Global pattern flags

u modifier: unicode. Treats the pattern and subject as UTF-16

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

^[0-9\p{L}][0-9\p{L}-\.]{1,61}[0-9\p{L}]\.[0-9\p{L}][\p{L}-]*[0-9\p{L}]+$

New

google.com
masełkowski.pl
maselkowski.pl
m.maselkowski.pl
www.masełkowski.pl.com
xn--masekowski-d0b.pl
中国互联网络信息中心.中国
masełkowski.pl.
masełk..owski.pl
中国互联网络信息中心.xn--masekowski-d0b

Regular Expression

Substitution