Struct json_ld::LangString

pub struct LangString { /* private fields */ }

Language string.

A language string is a string tagged with language and reading direction information.

A valid language string is associated to either a language tag or a direction, or both.

Implementations

impl LangString

pub fn new(
    data: LiteralString,
    language: Option<LenientLanguageTagBuf>,
    direction: Option<Direction>
) -> Result<LangString, LiteralString>

Create a new language string.

pub fn into_parts(
    self
) -> (LiteralString, Option<LenientLanguageTagBuf>, Option<Direction>)

pub fn parts(
    &self
) -> (&str, Option<&LenientLanguageTagBuf>, Option<&Direction>)

pub fn as_str(&self) -> &str

Reference to the underlying str.

pub fn language(&self) -> Option<LenientLanguageTag<'_>>

Gets the associated language tag, if any.

pub fn set_language(
    &mut self,
    language: Option<LenientLanguageTagBuf>
) -> Result<(), InvalidLangString>

Sets the associated language tag.

If None is given, the direction must be set, otherwise this function will fail with an InvalidLangString error.

pub fn direction(&self) -> Option<Direction>

Gets the associated direction, if any.

pub fn set_direction(
    &mut self,
    direction: Option<Direction>
) -> Result<(), InvalidLangString>

Sets the associated direction.

If None is given, a language tag must be set, otherwise this function will fail with an InvalidLangString error.

pub fn set(
    &mut self,
    language: Option<LenientLanguageTagBuf>,
    direction: Option<Direction>
) -> Result<(), InvalidLangString>

Set both the language tag and direction.

If both language and direction are None, this function will fail with an InvalidLangString error.

Trait Implementations

impl Clone for LangString

fn clone(&self) -> LangString

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LangString

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

Formats the value using the given formatter.

impl Hash for LangString

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

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl Ord for LangString

fn cmp(&self, other: &LangString) -> Ordering

This method returns an Ordering between self and other.

const fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

const fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

const fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<LangString> for LangString

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd<LangString> for LangString

fn partial_cmp(&self, other: &LangString) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for LangString

impl StructuralEq for LangString

impl StructuralPartialEq for LangString