regex101: Amazon Resource Name (ARN) pattern with a named group for each component

Pro

^start of line

arn:the literal text arn: (case sensitive)

Group Partition(?P<Partition>[^:\n]*)

Negated Character Class[^:\n]*

*matches any number of characters outside the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\na line-feed (newline) character (ASCII 10)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group Service(?P<Service>[^:\n]*)

Negated Character Class[^:\n]*

*matches any number of characters outside the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\na line-feed (newline) character (ASCII 10)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group Region(?P<Region>[^:\n]*)

Negated Character Class[^:\n]*

*matches any number of characters outside the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\na line-feed (newline) character (ASCII 10)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group AccountID(?P<AccountID>[^:\n]*)

Negated Character Class[^:\n]*

*matches any number of characters outside the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\na line-feed (newline) character (ASCII 10)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group Ignore(?P<Ignore>(?P<ResourceType>[^:\/\n]*)[:\/])?

?repeats the group contents below at most once:

Group ResourceType(?P<ResourceType>[^:\/\n]*)

Negated Character Class[^:\/\n]*

*matches any number of characters outside the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\na line-feed (newline) character (ASCII 10)

Character Class[:\/]

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group Resource(?P<Resource>.*)

.*any Unicode character (except for line terminators), repeated any number of 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

^arn:(?P<Partition>[^:\n]*):(?P<Service>[^:\n]*):(?P<Region>[^:\n]*):(?P<AccountID>[^:\n]*):(?P<Ignore>(?P<ResourceType>[^:\/\n]*)[:\/])?(?P<Resource>.*)$

New

# ARN Format Templates
arn:partition:service:region:account-id:resource
arn:partition:service:region:account-id:resourcetype/resource
arn:partition:service:region:account-id:resourcetype:resource

# Amazon Simple Storage Service (S3)
arn:aws:s3:::my_corporate_bucket/Development/*

Extraction

# ARN Format Templates
arn:partition:service:region:account-id:resource
arn:partition:service:region:account-id:resourcetype/resource
arn:partition:service:region:account-id:resourcetype:resource

# Amazon Simple Storage Service (S3)
arn:aws:s3:::my_corporate_bucket/Development/*