Struct Tag

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

Four byte integers, each byte representing a character.

Tags are used to identify tables, design-variation axes, scripts, languages, font features, and baselines with human-readable names.

Implementations

impl Tag

pub fn new(tag: impl Borrow<[u8; 4]>) -> Self

Constructs a new tag from bytes.

Example

let mut subset = SubsetInput::new()?;
// Remove character-to-glyph mapping data. This can be useful in PDF files where
// the mapping and positioning has already been done.
subset.drop_table_tag_set().insert(Tag::new(b"cmap"));

Trait Implementations

impl Clone for Tag

fn clone(&self) -> Tag

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Tag

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

Formats the value using the given formatter.

impl From<Tag> for [u8; 4]

fn from(tag: Tag) -> Self

Converts to this type from the input type.

impl From<Tag> for u32

fn from(tag: Tag) -> Self

Converts to this type from the input type.

impl From<u32> for Tag

fn from(tag: u32) -> Self

Converts to this type from the input type.

impl Copy for Tag