regex101: Python Match Workspace

Pro

1st Alternative(?<!\d)\d{1,2}/\d{1,2}/\d{2}(?:\d{2})?(?!\d)

Negative Lookbehind(?<!\d)

\da Unicode decimal digit

\d{1,2}a Unicode decimal digit, repeated between 1 and 2 times

/the literal / (47₁₀ / 57₈ / 2F₁₆)

\d{1,2}a Unicode decimal digit, repeated between 1 and 2 times

/the literal / (47₁₀ / 57₈ / 2F₁₆)

\d{2}a Unicode decimal digit, repeated exactly 2 times

Non-Capturing Group(?:\d{2})?

?repeats the group contents below at most once:

\d{2}a Unicode decimal digit, repeated exactly 2 times

Negative Lookahead(?!\d)

\da Unicode decimal digit

2nd Alternative\b(?:charB|wordA)\s*\d*[.,]?\d+

\ba Unicode word boundary

Non-Capturing Group(?:charB|wordA)

1st AlternativecharB

charBthe literal text charB (case sensitive)

2nd AlternativewordA

wordAthe literal text wordA (case sensitive)

\s*a Unicode whitespace character, repeated 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 at least once

3rd Alternative(?<!\d[.,])(?<!\d)(\d*[.,]?\d+)(?!\s*(?:wordB|charA)|[.,]?\d)

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

\da Unicode decimal digit

Character Class[.,]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

Negative Lookbehind(?<!\d)

\da Unicode decimal digit

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

\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 at least once

Negative Lookahead(?!\s*(?:wordB|charA)|[.,]?\d)

1st Alternative\s*(?:wordB|charA)

\s*a Unicode whitespace character, repeated any number of times

Non-Capturing Group(?:wordB|charA)

1st AlternativewordB

wordBthe literal text wordB (case sensitive)

2nd AlternativecharA

charAthe literal text charA (case sensitive)

2nd Alternative[.,]?\d

Character Class[.,]?

?matches at most one character from the set below:

.the literal . (46₁₀ / 56₈ / 2E₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\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

25 tokens

Regular Expression

(?<!\d)\d{1,2}/\d{1,2}/\d{2}(?:\d{2})?(?!\d)|\b(?:charB|wordA)\s*\d*[.,]?\d+|(?<!\d[.,])(?<!\d)(\d*[.,]?\d+)(?!\s*(?:wordB|charA)|[.,]?\d)

New

4.5 $55 1,200 wordA 3 sometext 2 wordB sometext 9charA sometext charB21.6 sometext 11/10/22 
4.5 $55 1,200 wordA 3 sometext 2 wordB sometext 4.3charA sometext charB21.6 sometext 11/10/22

Substitution

4.5 $55 1,200 wordA 3 sometext 2 wordB sometext 9charA sometext charB21.6 sometext 11/10/22 
4.5 $55 1,200 wordA 3 sometext 2 wordB sometext 4.3charA sometext charB21.6 sometext 11/10/22