Function percent_encode_path_segment

crates/openshell-core/src/secrets.rs:584–618

Percent-encode a string for safe use in URL path segments. RFC 3986 §3.3: pchar = unreserved / pct-encoded / sub-delims / ":" / "@" sub-delims = "!" / "$" / "&" / "'" / "(" / ")" / "*" / "+" / "," / ";" / "=" Must encode: `/`, `?`, `#`, space, and other non-pchar characters.

(input: &str)

///
/// Must encode: `/`, `?`, `#`, space, and other non-pchar characters.
fn percent_encode_path_segment(input: &str) -> String {
    let mut encoded = String::with_capacity(input.len());
    for byte in input.bytes() {
        match byte {
            // unreserved + sub-delims + ":" + "@"
            b'A'..=b'Z'
            | b'a'..=b'z'
            | b'0'..=b'9'
            | b'-'
            | b'.'
            | b'_'
            | b'~'
            | b'!'
            | b'$'
            | b'&'
            | b'\''
            | b'('
            | b')'
            | b'*'
            | b'+'
            | b','
            | b';'
            | b'='
            | b':'
            | b'@' => {
                encoded.push(byte as char);
            }
            _ => {
                use fmt::Write;
                let _ = write!(encoded, "%{byte:02X}");
            }
        }
    }
    encoded
}

/// Percent-decode a URL-encoded string.
fn percent_decode(input: &str) -> String {