// include the latest version of the regex crate in your Cargo.toml
extern crate regex;
use regex::Regex;
fn main() {
let regex = Regex::new(r#"(?m)^(?P<alb_type>(https?|h2|wss?))\s*(?P<alb_timestamp>[^\s]+)\s*(?P<alb_elb>[^\s]+)\s*(?P<alb_client_addr>[^:]+):\s*(?P<alb_client_port>[^\s]+)\s*(?P<alb_target_addr>[^:]+):(?P<alb_target_port>[^\s]+)\s*(?P<alb_request_processing_time>[^\s]+)\s*(?P<alb_target_processing_time>[^\s]+)\s*(?P<alb_response_processing_time>[^\s]+)\s*(?P<alb_elb_status_code>[^\s]+)\s*(?P<alb_target_status_code>[^\s]+)\s*(?P<alb_received_bytes>[^\s]+)\s*(?P<alb_sent_bytes>[^\s]+)\s*"(?P<alb_request>.*?)"\s+"(?P<alb_user_agent>[^\"]+)"\s*(?P<alb_ssl_cipher>[^\s]+)\s*(?P<alb_ssl_protocol>[^\s]+)\s*(?P<alb_target_group_arn>[^\s]+)\s*"(?P<alb_trace_id>[^\"]+)"\s*"(?P<alb_domain_name>[a-zA-Z0-9\.\-:]+)"\s*"(?P<alb_chosen_cert_arn>[^\"]+)"\s*(?P<alb_matched_rule_priority>[^\s]+)\s*(?P<alb_request_creation_time>[^\s]+)\s*\s*"(?P<alb_actions_executed>[^\s]+)"\s*"(?P<alb_redirect_url>[^\s]+)"\s*"(?P<alb_error_reason>[^\"]+)"\s*"?(?P<alb_target_port_list>[0-9 :\.-]+)"?\s*"?(?P<alb_target_status_code_list>[0-9 -]+)"?"#).unwrap();
let string = "http 2018-07-02T22:23:00.186641Z app/my-loadbalancer/50dc6c495c0c9188
192.168.131.39:2817 10.0.0.1:80 0.000 0.001 0.000 200 200 34 366
\"GET http://www.example.com:80/ HTTP/1.1\" \"curl/7.46.0\" - -
arn:aws:elasticloadbalancing:us-east-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067
\"Root=1-58337262-36d228ad5d99923122bbe354\" \"-\" \"-\"
0 2018-07-02T22:22:48.364000Z \"forward\" \"-\" \"-\" 80 200
ws 2018-07-02T22:23:00.186641Z app/my-loadbalancer/50dc6c495c0c9188
10.0.0.140:40914 10.0.1.192:8010 0.001 0.003 0.000 101 101 218 587
\"GET http://10.0.0.30:80/ HTTP/1.1\" \"-\" - -
arn:aws:elasticloadbalancing:us-east-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067
\"Root=1-58337364-23a8c76965a2ef7629b185e3\" \"-\" \"-\"
1 2018-07-02T22:22:48.364000Z \"forward\" \"-\" \"-\" 80 200
wss 2018-07-02T22:23:00.186641Z app/my-loadbalancer/50dc6c495c0c9188
10.0.0.140:44244 10.0.0.171:8010 0.000 0.001 0.000 101 101 218 786
\"GET https://10.0.0.30:443/ HTTP/1.1\" \"-\" ECDHE-RSA-AES128-GCM-SHA256 TLSv1.2
arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067
\"Root=1-58337364-23a8c76965a2ef7629b185e3\" \"-\" \"-\"
1 2018-07-02T22:22:48.364000Z \"forward\" \"-\" \"-\" \"44244\" \"101\"
";
// result will be an iterator over tuples containing the start and end indices for each match in the string
let result = regex.captures_iter(string);
for mat in result {
println!("{:?}", mat);
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Rust, please visit: https://docs.rs/regex/latest/regex/