Regular Expressions 101

Negative Lookbehind(?<![+])

Character Class[+]

+the literal + (43₁₀ / 53₈ / 2B₁₆)

Group 1(\d*\.?\d+)

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

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

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

Negative Lookahead(?![%+])

Character Class[%+]

%the literal % (37₁₀ / 45₈ / 25₁₆)

+the literal + (43₁₀ / 53₈ / 2B₁₆)

Positive Lookahead(?=\D|$)

1st Alternative\D

\Dany character that is not a Unicode decimal digit

2nd Alternative$

$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.

Search reference

Regular Expression

(?<![+])(\d*\.?\d+)(?![%+])(?=\D|$)

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