Struct Metadata 

pub struct Metadata {
    pub title: Option<String>,
    pub author: Option<String>,
    pub extra: BTreeMap<String, String>,
}

Book metadata: everything about the work that isn’t content.

Fields

title: Option<String>

Title, for the half-title and running heads.

author: Option<String>

Author, for the title page.

extra: BTreeMap<String, String>

Frontend-defined extensions (language, ISBN, subtitle…) keyed by name. Opaque to the engine; style reads them, layout doesn’t.

Left out of the JSON when empty, and so it has to be optional coming back in: what the engine writes is what a host hands it again.

Implementations

impl Metadata

pub fn language(&self) -> Option<&str>

The BCP 47 tag under extra["language"]. The PDF records it and hyphenation takes its patterns from it. A blank tag counts as none declared.

Trait Implementations

impl Clone for Metadata

fn clone(&self) -> Metadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Metadata

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

Formats the value using the given formatter.

impl Default for Metadata

fn default() -> Metadata

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Metadata

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Metadata

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Metadata

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 Metadata