regex101: PCRE (Legacy) Match Workspace

1st Alternative(?:(f|F)((a|A)(X|x))?(?:\s?(\-|\:)?\s?))(?:\s?[0-9\+\.\(\)\/\\\-]\/?\\?\s?){7,30}(*SKIP)(*FAIL)

Non-Capturing Group(?:(f|F)((a|A)(X|x))?(?:\s?(\-|\:)?\s?))

Group 1(f|F)

1st Alternativef

fthe literal f (102₁₀ / 146₈ / 66₁₆) (case sensitive)

2nd AlternativeF

Fthe literal F (70₁₀ / 106₈ / 46₁₆) (case sensitive)

Group 2((a|A)(X|x))?

?repeats the group contents below at most once:

Group 3(a|A)

1st Alternativea

athe literal a (97₁₀ / 141₈ / 61₁₆) (case sensitive)

2nd AlternativeA

Athe literal A (65₁₀ / 101₈ / 41₁₆) (case sensitive)

Group 4(X|x)

1st AlternativeX

Xthe literal X (88₁₀ / 130₈ / 58₁₆) (case sensitive)

2nd Alternativex

xthe literal x (120₁₀ / 170₈ / 78₁₆) (case sensitive)

Non-Capturing Group(?:\s?(\-|\:)?\s?)

\s?optionally matches any whitespace character

Group 5(\-|\:)?

?repeats the group contents below at most once:

1st Alternative\-

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

2nd Alternative\:

\:the literal : (58₁₀ / 72₈ / 3A₁₆)

\s?optionally matches any whitespace character

Non-Capturing Group(?:\s?[0-9\+\.\(\)\/\\\-]\/?\\?\s?){7,30}

{7,30}repeats the group contents below between 7 and 30 times:

\s?optionally matches any whitespace character

Character Class[0-9\+\.\(\)\/\\\-]

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

\/?optionally matches the literal / (47₁₀ / 57₈ / 2F₁₆)

\\?optionally matches the literal \ (92₁₀ / 134₈ / 5C₁₆)

\s?optionally matches any whitespace character

(*SKIP)acts like (*PRUNE), but the next unanchored match attempt starts where (*SKIP) was reached instead of at the next subject character

(*FAIL)forces the current match attempt to fail at this position

2nd Alternative(?:\s?[0-9\+\.\(\)\/\\\-]\/?\\?\s?){7,30}

Non-Capturing Group(?:\s?[0-9\+\.\(\)\/\\\-]\/?\\?\s?){7,30}

{7,30}repeats the group contents below between 7 and 30 times:

\s?optionally matches any whitespace character

Character Class[0-9\+\.\(\)\/\\\-]

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

\/?optionally matches the literal / (47₁₀ / 57₈ / 2F₁₆)

\\?optionally matches the literal \ (92₁₀ / 134₈ / 5C₁₆)

\s?optionally matches any whitespace character

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Search reference

Regular Expression

(?:(f|F)((a|A)(X|x))?(?:\s?(\-|\:)?\s?))(?:\s?[0-9\+\.\(\)\/\\\-]\/?\\?\s?){7,30}(*SKIP)(*FAIL)|(?:\s?[0-9\+\.\(\)\/\\\-]\/?\\?\s?){7,30}

New

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(?:(f|F)((a|A)(X|x))?

Regular Expressions 101

Regular Expression

Extraction