Struct DataMapRecord

#[repr(C, packed(1))]
pub struct DataMapRecord {
    pub tag: BigEndian<Tag>,
    pub data_offset: BigEndian<Offset32>,
    pub data_length: BigEndian<u32>,
}

https://learn.microsoft.com/en-us/typography/opentype/spec/meta#table-formats

Fields

tag: BigEndian<Tag>

A tag indicating the type of metadata.

data_offset: BigEndian<Offset32>

Offset in bytes from the beginning of the metadata table to the data for this tag.

data_length: BigEndian<u32>

Length of the data, in bytes. The data is not required to be padded to any byte boundary.

Implementations

impl DataMapRecord

pub fn tag(&self) -> Tag

A tag indicating the type of metadata.

pub fn data_offset(&self) -> Offset32

Offset in bytes from the beginning of the metadata table to the data for this tag.

pub fn data<'a>(&self, data: FontData<'a>) -> Result<Metadata<'a>, ReadError>

Offset in bytes from the beginning of the metadata table to the data for this tag.

The data argument should be retrieved from the parent table By calling its offset_data method.

pub fn data_length(&self) -> u32

Length of the data, in bytes. The data is not required to be padded to any byte boundary.

Trait Implementations

impl Clone for DataMapRecord

fn clone(&self) -> DataMapRecord

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DataMapRecord

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

Formats the value using the given formatter.

impl FixedSize for DataMapRecord

const RAW_BYTE_LEN: usize = 12usize

The raw size of this type, in bytes.

impl Zeroable for DataMapRecord

fn zeroed() -> Self

Calls zeroed.

impl AnyBitPattern for DataMapRecord

impl Copy for DataMapRecord