Struct pica_record::primitives::Subfield

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

A mutable subfield.

Implementations

impl Subfield

pub fn new(code: char, value: &str) -> Result<Self, ParsePicaError>

Create a new immutable PICA+ SubfieldRef.

Example

use pica_record::primitives::Subfield;

let subfield = Subfield::new('a', "abc")?;
assert_eq!(subfield.code(), 'a');
assert_eq!(subfield.value(), "abc");

pub fn code(&self) -> &SubfieldCode

Returns the code of the subfield.

Example

use pica_record::primitives::Subfield;

let subfield = Subfield::new('X', "")?;
assert_eq!(subfield.code(), 'X');

pub fn value(&self) -> &SubfieldValue

Returns the value of the subfield.

Example

use pica_record::primitives::Subfield;

let subfield = Subfield::new('a', "abc")?;
assert_eq!(subfield.value(), b"abc");

pub fn write_to(&self, out: &mut impl Write) -> Result<()>

Write the subfield into the given writer.

Example

use std::io::Cursor;

use pica_record::primitives::{Subfield, SubfieldRef};

let mut writer = Cursor::new(Vec::<u8>::new());
let subfield = Subfield::new('0', "123456789X")?;
subfield.write_to(&mut writer);

Trait Implementations

impl Clone for Subfield

fn clone(&self) -> Subfield

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Subfield

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

Formats the value using the given formatter.

impl From<SubfieldRef<'_>> for Subfield

fn from(subfield: SubfieldRef<'_>) -> Self

Converts a SubfieldRef to a Subfield.

Example

use pica_record::primitives::{Subfield, SubfieldRef};

let subfield_ref = SubfieldRef::new('0', "123456789X")?;
let subfield = Subfield::from(subfield_ref);
assert_eq!(subfield.code(), '0');
assert_eq!(subfield.value(), "123456789X");

impl Hash for Subfield

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<Subfield> for SubfieldRef<'_>

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

Compare a SubfieldRef with a Subfield.

Example

use pica_record::primitives::{Subfield, SubfieldRef};

let subfield_ref = SubfieldRef::new('0', "123456789X")?;
let subfield = Subfield::new('0', "123456789X")?;
assert_eq!(subfield_ref, subfield);

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq for Subfield

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Subfield

impl StructuralPartialEq for Subfield