Struct Doi 

pub struct Doi(/* private fields */);

A validated DOI string.

Construct via Doi::parse(s) (Phase 1+). The inner field is intentionally pub(crate) to forbid bypass construction; tests inside doiget-core may still use Doi(s) for fixture purposes.

Wire format: bare string (#[serde(transparent)]), e.g. "10.1234/example".

Implementations

impl Doi

pub fn prefix(&self) -> &str

The DOI registrant prefix — everything before the first /, e.g. "10.1103" for 10.1103/PhysRevLett.116.061102.

Used to scope publisher-specific Tier-3 TDM sources to the DOIs their publisher actually registered (#442). Doi is only ever constructed through Doi::parse, which requires the 10.<registrant>/<suffix> shape, so the / is always present; the fallback returns the whole string rather than panicking.

pub fn as_str(&self) -> &str

Returns the DOI as a string slice.

pub fn parse(s: &str) -> Result<Self, RefParseError>

Parses and validates a DOI string per docs/SECURITY.md §1.1.

Accepts:

• Bare DOIs: 10.<registrant>/<suffix> where <registrant> is 4–9 digits and <suffix> is a non-empty sequence of characters drawn from [A-Za-z0-9._/():-] (the : covers legacy Kluwer 10.1023/A:NNNN and EDP Sciences 10.1051/jphys:NNNN DOIs).
• The doi: URI scheme prefix; it is stripped before validation, so the stored value never carries a scheme. (Matches the convention established in docs/SAFEKEY.md §3 step 0.)

Rejects:

• Inputs missing the literal 10. prefix (after optional scheme strip).
• Suffixes longer than DOI_SUFFIX_MAX_LEN bytes.
• Empty suffixes.
• Any character outside the suffix charset above (including control characters, whitespace, and non-ASCII).

Errors

Returns a RefParseError variant that names the specific rejection category. Tier 1+ callers should map any RefParseError to ErrorCode::InvalidRef when surfacing to MCP / CLI.

Trait Implementations

impl Clone for Doi

fn clone(&self) -> Doi

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Doi

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Doi

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Doi

impl Hash for Doi

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Doi

fn eq(&self, other: &Doi) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Doi

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Doi