Regular Expressions 101

Pro

\ba Unicode word boundary

Negative Lookbehind(?<!\d[.,])

\da Unicode decimal digit

Character Class[.,]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a Unicode decimal digit, repeated at least once

Non-Capturing Group(?:[.,]0+)?

?repeats the group contents below at most once:

Character Class[.,]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

0+the literal 0 (48₁₀ / 60₈ / 30₁₆) , repeated at least once

\ba Unicode word boundary

Negative Lookahead(?![,.]\d)

Character Class[,.]

,the literal , (44₁₀ / 54₈ / 2C₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\da Unicode decimal digit

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

\b(?<!\d[.,])\d+(?:[.,]0+)?\b(?![,.]\d)

New

Test (2.00001) Test (2.000) Test 2.1 Test (2,0001) Test 2,000 Test 2,1000 test 2

test 2 2.00
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