fn encode(&self, bytes: &[u8]) -> String {
        // Process input in chunks of three octets. Each chunk is converted to
        // four sextets. Each sextet is encoded as a printable ASCII character
        // via `CHARSET`.
        //
        // When the input length is not divisible by three, the last chunk is
        // partial. Sextets that are entirely determined by missing octets are
        // encoded as `=`. Sextets that are partially determined by a missing
        // octect assume the octet was zero.
        //
        // Line breaks are emitted after every 76 characters.

        let mut buf = String::new();
        for chunk in bytes.chunks(3) {
            match chunk {
                [o1, o2, o3] => {
                    let s1 = (o1 & 0b11111100) >> 2;
                    let s2 = (o1 & 0b00000011) << 4 | (o2 & 0b11110000) >> 4;
                    let s3 = (o2 & 0b00001111) << 2 | (o3 & 0b11000000) >> 6;
                    let s4 = o3 & 0b00111111;
                    buf.push(Self::encode_sextet(s1));
                    buf.push(Self::encode_sextet(s2));
                    buf.push(Self::encode_sextet(s3));
                    buf.push(Self::encode_sextet(s4));
                }
                [o1, o2] => {
                    let s1 = (o1 & 0b11111100) >> 2;
                    let s2 = (o1 & 0b00000011) << 4 | (o2 & 0b11110000) >> 4;
                    let s3 = (o2 & 0b00001111) << 2;
                    buf.push(Self::encode_sextet(s1));
                    buf.push(Self::encode_sextet(s2));
                    buf.push(Self::encode_sextet(s3));
                    buf.push('=');
                }
                [o1] => {
                    let s1 = (o1 & 0b11111100) >> 2;
                    let s2 = (o1 & 0b00000011) << 4;
                    buf.push(Self::encode_sextet(s1));
                    buf.push(Self::encode_sextet(s2));
                    buf.push('=');
                    buf.push('=');
                }
                _ => unreachable!(),
            }
            if buf.len() % 77 == 76 {
                buf.push('\n');
            }
        }
        buf
    }
// Support for PostgreSQL-style (which is really MIME-style) Base64 encoding
// was, frustratingly, removed from Rust's `base64` crate. So we roll our
// own Base64 encoder and decoder here.
Support for PostgreSQL-style (which is really MIME-style) Base64 encoding
was, frustratingly, removed from Rust's `base64` crate. So we roll our
own Base64 encoder and decoder here.
Support for PostgreSQL - style ( which is really MIME - style ) Base64 encoding was frustratingly removed from Rust ' s ` base64 ` crate . So we roll our own Base64 encoder and decoder here .
fn encode(&self, bytes: &[u8]) -> String {
        // Process input in chunks of three octets. Each chunk is converted to
        // four sextets. Each sextet is encoded as a printable ASCII character
        // via `CHARSET`.
        //
        // When the input length is not divisible by three, the last chunk is
        // partial. Sextets that are entirely determined by missing octets are
        // encoded as `=`. Sextets that are partially determined by a missing
        // octect assume the octet was zero.
        //
        // Line breaks are emitted after every 76 characters.
        let mut buf = String::new();
        for chunk in bytes.chunks(3) {
            match chunk {
                [o1, o2, o3] => {
                    let s1 = (o1 & 0b11111100) >> 2;
                    let s2 = (o1 & 0b00000011) << 4 | (o2 & 0b11110000) >> 4;
                    let s3 = (o2 & 0b00001111) << 2 | (o3 & 0b11000000) >> 6;
                    let s4 = o3 & 0b00111111;
                    buf.push(Self::encode_sextet(s1));
                    buf.push(Self::encode_sextet(s2));
                    buf.push(Self::encode_sextet(s3));
                    buf.push(Self::encode_sextet(s4));
                }
                [o1, o2] => {
                    let s1 = (o1 & 0b11111100) >> 2;
                    let s2 = (o1 & 0b00000011) << 4 | (o2 & 0b11110000) >> 4;
                    let s3 = (o2 & 0b00001111) << 2;
                    buf.push(Self::encode_sextet(s1));
                    buf.push(Self::encode_sextet(s2));
                    buf.push(Self::encode_sextet(s3));
                    buf.push('=');
                }
                [o1] => {
                    let s1 = (o1 & 0b11111100) >> 2;
                    let s2 = (o1 & 0b00000011) << 4;
                    buf.push(Self::encode_sextet(s1));
                    buf.push(Self::encode_sextet(s2));
                    buf.push('=');
                    buf.push('=');
                }
                _ => unreachable!(),
            }
            if buf.len() % 77 == 76 {
                buf.push('\n');
            }
        }
        buf
    }
fn encode ( & self , bytes : & [ u8 ] ) -> String { // Process input in chunks of three octets. Each chunk is converted to // four sextets. Each sextet is encoded as a printable ASCII character // via `CHARSET`. // // When the input length is not divisible by three, the last chunk is // partial. Sextets that are entirely determined by missing octets are // encoded as `=`. Sextets that are partially determined by a missing // octect assume the octet was zero. // // Line breaks are emitted after every 76 characters. let mut buf = String :: new ( ) ; for chunk in bytes . chunks ( 3 ) { match chunk { [ o1 , o2 , o3 ] => { let s1 = ( o1 & 0b11111100 ) >> 2 ; let s2 = ( o1 & 0b00000011 ) << 4 | ( o2 & 0b11110000 ) >> 4 ; let s3 = ( o2 & 0b00001111 ) << 2 | ( o3 & 0b11000000 ) >> 6 ; let s4 = o3 & 0b00111111 ; buf . push ( Self :: encode_sextet ( s1 ) ) ; buf . push ( Self :: encode_sextet ( s2 ) ) ; buf . push ( Self :: encode_sextet ( s3 ) ) ; buf . push ( Self :: encode_sextet ( s4 ) ) ; } [ o1 , o2 ] => { let s1 = ( o1 & 0b11111100 ) >> 2 ; let s2 = ( o1 & 0b00000011 ) << 4 | ( o2 & 0b11110000 ) >> 4 ; let s3 = ( o2 & 0b00001111 ) << 2 ; buf . push ( Self :: encode_sextet ( s1 ) ) ; buf . push ( Self :: encode_sextet ( s2 ) ) ; buf . push ( Self :: encode_sextet ( s3 ) ) ; buf . push ( '=' ) ; } [ o1 ] => { let s1 = ( o1 & 0b11111100 ) >> 2 ; let s2 = ( o1 & 0b00000011 ) << 4 ; buf . push ( Self :: encode_sextet ( s1 ) ) ; buf . push ( Self :: encode_sextet ( s2 ) ) ; buf . push ( '=' ) ; buf . push ( '=' ) ; } _ => unreachable ! ( ) , } if buf . len ( ) % 77 == 76 { buf . push ( '\n' ) ; } } buf }
Support for PostgreSQL-style (which is really MIME-style) Base64 encoding
was, frustratingly, removed from Rust's `base64` crate.
Support for PostgreSQL - style ( which is really MIME - style ) Base64 encoding was frustratingly removed from Rust ' s ` base64 ` crate .
&self
bytes
&[u8]
&self
bytes
&[u8]