Regular Expressions 101

Explanation

Pro

1st Alternative(?<=[A-Za-z\d])\s+(?=\d)

Positive Lookbehind(?<=[A-Za-z\d])

Character Class[A-Za-z\d]

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

\da digit

\s+any whitespace character, repeated at least once

Positive Lookahead(?=\d)

\da digit

2nd Alternative(?<=\d)\s+(?=[A-Za-z])

Positive Lookbehind(?<=\d)

\da digit

\s+any whitespace character, repeated at least once

Positive Lookahead(?=[A-Za-z])

Character Class[A-Za-z]

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

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

(?<=[A-Za-z\d])\s+(?=\d)|(?<=\d)\s+(?=[A-Za-z])

New

Price           45.0          50.0       43.5     43.0, 12.9 NOT FOUND

\n

Price           45.0          50.0       43.5     43.0, 12.9 NOT FOUND