Struct json_ld::LangString

pub struct LangString { /* fields omitted */ }

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(
    str: String,
    language: Option<LanguageTagBuf>,
    direction: Option<Direction>
) -> Result<LangString, String>

Create a new language string.

pub fn as_str(&self) -> &str

Reference to the undrlying string.

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

Gets the associated language tag, if any.

pub fn set_language(
    &mut self,
    language: Option<LanguageTagBuf>
) -> 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<LanguageTagBuf>,
    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.

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

Performs copy-assignment from source.

impl Debug for LangString

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

Formats the value using the given formatter.

impl Hash for LangString

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, 

Feeds a slice of this type into the given Hasher.

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 ==.

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

This method tests for !=.

impl Eq for LangString

impl StructuralEq for LangString

impl StructuralPartialEq for LangString