Function is_env_key_char

crates/openshell-core/src/secrets.rs:18–20

Characters that are valid in an env var key name (used to extract placeholder boundaries within concatenated strings like path segments).

(b: u8)

/// Characters that are valid in an env var key name (used to extract
/// placeholder boundaries within concatenated strings like path segments).
fn is_env_key_char(b: u8) -> bool {
    b.is_ascii_alphanumeric() || b == b'_'
}

fn is_alias_token_char(b: u8) -> bool {
    b.is_ascii_alphanumeric() || matches!(b, b'_' | b'-' | b'.' | b'~')