regex101: PCRE (Legacy) Match Workspace

Pro

^start of line

Group g1(?<g1>\s*[a-zA-Z.]+)

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

Character Class[a-zA-Z.]+

+matches at least one character from the set below:

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

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

.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group g2(?<g2>\s+[a-zA-Z\d]+)?

?repeats the group contents below at most once:

\s+any whitespace character, repeated at least once

Character Class[a-zA-Z\d]+

+matches at least one character from the set below:

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

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

\da digit

Group g3(?<g3>\s+[a-zA-Z\d]+)?

?repeats the group contents below at most once:

\s+any whitespace character, repeated at least once

Character Class[a-zA-Z\d]+

+matches at least one character from the set below:

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

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

\da digit

Group g4(?<g4>\s?[a-zA-Z]*)

\s?optionally matches any whitespace character

Character Class[a-zA-Z]*

*matches any number of characters from the set below:

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

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

Non-Capturing Group(?:\s+(?P<CAPT1>[A-Z]+)-(?P<CAPT2>\w+)(?:-.{2})?)

\s+any whitespace character, repeated at least once

Group CAPT1(?P<CAPT1>[A-Z]+)

Character Class[A-Z]+

+matches at least one character from the set below:

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

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group CAPT2(?P<CAPT2>\w+)

\w+any word character, repeated at least once

Non-Capturing Group(?:-.{2})?

?repeats the group contents below at most once:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

.{2}any character (except for line terminators), repeated exactly 2 times

$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

25 tokens

Regular Expression

^(?<g1>\s*[a-zA-Z.]+)(?<g2>\s+[a-zA-Z\d]+)?(?<g3>\s+[a-zA-Z\d]+)?(?<g4>\s?[a-zA-Z]*)(?:\s+(?P<CAPT1>[A-Z]+)-(?P<CAPT2>\w+)(?:-.{2})?)$

New

AAA. A ZZZ-X37

AAA 4X X9 A ZZZ-X37

AAA 4X A ZZZ-X37

Substitution

AAA. A ZZZ-X37

AAA 4X X9 A ZZZ-X37

AAA 4X A ZZZ-X37