Struct AuthorityMarcReader 

pub struct AuthorityMarcReader<R: Read> { /* private fields */ }

Reader for ISO 2709 binary MARC Authority records.

AuthorityMarcReader reads Authority record data and converts it to AuthorityRecord instances. It reuses the same binary format as bibliographic records but organizes fields by their functional role (heading, tracings, notes, etc.).

Backends

The reader automatically detects the input source:

• File paths → RustFile backend (parallel-safe)
• Bytes/BytesIO → CursorBackend (parallel-safe)
• Python file objects → PythonFile (sequential, requires GIL)

Implementations

impl<R: Read> AuthorityMarcReader<R>

pub fn new(reader: R) -> Self

Create a new Authority MARC reader.

Arguments

• reader - Any source implementing std::io::Read

pub fn with_recovery_mode(self, mode: RecoveryMode) -> Self

Set the recovery mode for handling malformed records.

The recovery mode determines how the reader handles truncated or malformed Authority records:

• Strict: Return errors immediately (default)
• Lenient: Attempt to recover and salvage valid data
• Permissive: Be very lenient, accepting partial data

pub fn read_record(&mut self) -> Result<Option<AuthorityRecord>>

Read the next Authority record from the stream.

Returns Ok(None) when the end of file is reached.

Errors

Returns an error if the binary data is malformed or an I/O error occurs.

Trait Implementations

impl<R: Debug + Read> Debug for AuthorityMarcReader<R>

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

Formats the value using the given formatter.