Regular Expressions 101

Pro

^start of line

Group 1(([0-9]|10)|([0-9][.,][0]?[1-9][1-9]?))

1st Alternative([0-9]|10)

Group 2([0-9]|10)

1st Alternative[0-9]

Character Class[0-9]

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

2nd Alternative10

10the literal text 10

2nd Alternative([0-9][.,][0]?[1-9][1-9]?)

Group 3([0-9][.,][0]?[1-9][1-9]?)

Character Class[0-9]

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

Character Class[.,]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

Character Class[0]?

?matches at most one character from the set below:

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[1-9]

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

Character Class[1-9]?

?matches at most one character from the set below:

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

$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

^(([0-9]|10)|([0-9][.,][0]?[1-9][1-9]?))$

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