Regular Expressions 101

Pro

1st Alternative(?:{(?:[a-zA-Z]:)?[a-zA-Z_]\w*}){2,}(*SKIP)(*F)

Non-Capturing Group(?:{(?:[a-zA-Z]:)?[a-zA-Z_]\w*}){2,}

{2,}repeats the group contents below at least 2 times:

{the literal { (123₁₀ / 173₈ / 7B₁₆)

Non-Capturing Group(?:[a-zA-Z]:)?

?repeats the group contents below at most once:

Character Class[a-zA-Z]

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

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

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Character Class[a-zA-Z_]

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

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

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

\w*any word character, repeated any number of times

}the literal } (125₁₀ / 175₈ / 7D₁₆)

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

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

2nd Alternative{(?:(?<type>[a-zA-Z]):)?(?<name>[a-zA-Z_]\w*)}

{the literal { (123₁₀ / 173₈ / 7B₁₆)

Non-Capturing Group(?:(?<type>[a-zA-Z]):)?

?repeats the group contents below at most once:

Group type(?<type>[a-zA-Z])

Character Class[a-zA-Z]

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

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

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group name(?<name>[a-zA-Z_]\w*)

Character Class[a-zA-Z_]

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

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

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

\w*any word character, repeated any number of times

}the literal } (125₁₀ / 175₈ / 7D₁₆)

Global pattern flags

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

No unit tests · Add a test to get started

25 tokens

(?:{(?:[a-zA-Z]:)?[a-zA-Z_]\w*}){2,}(*SKIP)(*F)|{(?:(?<type>[a-zA-Z]):)?(?<name>[a-zA-Z_]\w*)}

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