fn new(s: &str) -> Format<State> {
        let fmt = Regex::new(r"%(\{([A-Za-z0-9\-_]+)\}([aioe]|xi|xo)|[atPrUsbTDMVQ]?)").unwrap();

        let mut idx = 0;
        let mut results = Vec::new();
        for cap in fmt.captures_iter(s) {
            let m = cap.get(0).unwrap();
            let pos = m.start();
            if idx != pos {
                results.push(FormatText::Str(s[idx..pos].to_owned()));
            }
            idx = m.end();

            if let Some(key) = cap.get(2) {
                results.push(match cap.get(3).unwrap().as_str() {
                    "a" => {
                        if key.as_str() == "r" {
                            FormatText::RealIPRemoteAddr
                        } else {
                            unreachable!()
                        }
                    }
                    "i" => FormatText::RequestHeader(HeaderName::try_from(key.as_str()).unwrap()),
                    "o" => FormatText::ResponseHeader(HeaderName::try_from(key.as_str()).unwrap()),
                    "e" => FormatText::EnvironHeader(key.as_str().to_owned()),
                    "xi" => FormatText::CustomRequest(key.as_str().to_owned(), None),
                    "xo" => FormatText::CustomResponse(key.as_str().to_owned(), None),
                    _ => unreachable!(),
                })
            } else {
                let m = cap.get(1).unwrap();
                results.push(match m.as_str() {
                    "%" => FormatText::Percent,
                    "a" => FormatText::RemoteAddr,
                    "t" => FormatText::RequestTime,
                    "r" => FormatText::RequestLine,
                    "s" => FormatText::ResponseStatus,
                    "b" => FormatText::ResponseSize,
                    "M" => FormatText::Method,
                    "V" => FormatText::Version,
                    "Q" => FormatText::Query,
                    "U" => FormatText::UrlPath,
                    "T" => FormatText::Time,
                    "D" => FormatText::TimeMillis,
                    _ => FormatText::Str(m.as_str().to_owned()),
                });
            }
        }
        if idx != s.len() {
            results.push(FormatText::Str(s[idx..].to_owned()));
        }

        Format(results)
    }
/// Create a `Format` from a format string.
///
/// Returns `None` if the format string syntax is incorrect.
Create a `Format` from a format string.
Returns `None` if the format string syntax is incorrect.
Create a ` Format ` from a format string . Returns ` None ` if the format string syntax is incorrect .
fn new(s: &str) -> Format<State> {
        let fmt = Regex::new(r"%(\{([A-Za-z0-9\-_]+)\}([aioe]|xi|xo)|[atPrUsbTDMVQ]?)").unwrap();
        let mut idx = 0;
        let mut results = Vec::new();
        for cap in fmt.captures_iter(s) {
            let m = cap.get(0).unwrap();
            let pos = m.start();
            if idx != pos {
                results.push(FormatText::Str(s[idx..pos].to_owned()));
            }
            idx = m.end();
            if let Some(key) = cap.get(2) {
                results.push(match cap.get(3).unwrap().as_str() {
                    "a" => {
                        if key.as_str() == "r" {
                            FormatText::RealIPRemoteAddr
                        } else {
                            unreachable!()
                        }
                    }
                    "i" => FormatText::RequestHeader(HeaderName::try_from(key.as_str()).unwrap()),
                    "o" => FormatText::ResponseHeader(HeaderName::try_from(key.as_str()).unwrap()),
                    "e" => FormatText::EnvironHeader(key.as_str().to_owned()),
                    "xi" => FormatText::CustomRequest(key.as_str().to_owned(), None),
                    "xo" => FormatText::CustomResponse(key.as_str().to_owned(), None),
                    _ => unreachable!(),
                })
            } else {
                let m = cap.get(1).unwrap();
                results.push(match m.as_str() {
                    "%" => FormatText::Percent,
                    "a" => FormatText::RemoteAddr,
                    "t" => FormatText::RequestTime,
                    "r" => FormatText::RequestLine,
                    "s" => FormatText::ResponseStatus,
                    "b" => FormatText::ResponseSize,
                    "M" => FormatText::Method,
                    "V" => FormatText::Version,
                    "Q" => FormatText::Query,
                    "U" => FormatText::UrlPath,
                    "T" => FormatText::Time,
                    "D" => FormatText::TimeMillis,
                    _ => FormatText::Str(m.as_str().to_owned()),
                });
            }
        }
        if idx != s.len() {
            results.push(FormatText::Str(s[idx..].to_owned()));
        }
        Format(results)
    }
fn new ( s : & str ) -> Format < State > { let fmt = Regex :: new ( r"%(\{([A-Za-z0-9\-_]+)\}([aioe]|xi|xo)|[atPrUsbTDMVQ]?)" ) . unwrap ( ) ; let mut idx = 0 ; let mut results = Vec :: new ( ) ; for cap in fmt . captures_iter ( s ) { let m = cap . get ( 0 ) . unwrap ( ) ; let pos = m . start ( ) ; if idx != pos { results . push ( FormatText :: Str ( s [ idx .. pos ] . to_owned ( ) ) ) ; } idx = m . end ( ) ; if let Some ( key ) = cap . get ( 2 ) { results . push ( match cap . get ( 3 ) . unwrap ( ) . as_str ( ) { " " => { if key . as_str ( ) == " " { FormatText :: RealIPRemoteAddr } else { unreachable ! ( ) } } " " => FormatText :: RequestHeader ( HeaderName :: try_from ( key . as_str ( ) ) . unwrap ( ) ) , " " => FormatText :: ResponseHeader ( HeaderName :: try_from ( key . as_str ( ) ) . unwrap ( ) ) , " " => FormatText :: EnvironHeader ( key . as_str ( ) . to_owned ( ) ) , " " => FormatText :: CustomRequest ( key . as_str ( ) . to_owned ( ) , None ) , " " => FormatText :: CustomResponse ( key . as_str ( ) . to_owned ( ) , None ) , _ => unreachable ! ( ) , } ) } else { let m = cap . get ( 1 ) . unwrap ( ) ; results . push ( match m . as_str ( ) { " " => FormatText :: Percent , " " => FormatText :: RemoteAddr , " " => FormatText :: RequestTime , " " => FormatText :: RequestLine , " " => FormatText :: ResponseStatus , " " => FormatText :: ResponseSize , " " => FormatText :: Method , " " => FormatText :: Version , " " => FormatText :: Query , " " => FormatText :: UrlPath , " " => FormatText :: Time , " " => FormatText :: TimeMillis , _ => FormatText :: Str ( m . as_str ( ) . to_owned ( ) ) , } ) ; } } if idx != s . len ( ) { results . push ( FormatText :: Str ( s [ idx .. ] . to_owned ( ) ) ) ; } Format ( results ) }
Create a `Format` from a format string.
Create a ` Format ` from a format string .
s
&str
s
&str