Regular Expressions 101

^start of line

Group 1(\d*[.,]?\d*)*

*repeats the group contents below any number of times:

\d*a Unicode decimal digit, repeated any number of times

Character Class[.,]?

?matches at most one character from the set below:

.the literal . (46₁₀ / 56₈ / 2E₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d*a Unicode decimal digit, 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

^(\d*[.,]?\d*)*$

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