lasconic

IAMUSERID %{NUMBER:iam_user_id}
IAMUSERNAME [a-zA-Z0-9._-]+
IAMUSER arn:aws:iam::%{IAMUSERID}:user/%{IAMUSERNAME:iam_user_name}

S3TYPE [a-zA-z_]+
S3OP [a-zA-z]+
S3SOAPOPERATION (?:SOAP\.%{S3OP})
S3RESTOPERATION  (?:REST\.%{S3OP}(\.%{S3TYPE})?)
S3WEBSITEOPERATION  (?:WEBSITE\.%{S3OP}\.%{S3TYPE})
S3OPERATION (?:%{S3SOAPOPERATION}|%{S3RESTOPERATION}|%{S3WEBSITEOPERATION})