Type Alias Cmap12

pub type Cmap12<'a> = TableRef<'a, Cmap12Marker>;

cmap Format 12: Segmented coverage

Aliased Type

struct Cmap12<'a> { /* private fields */ }

Implementations

impl<'a> Cmap12<'a>

pub fn format(&self) -> u16

Subtable format; set to 12.

pub fn length(&self) -> u32

Byte length of this subtable (including the header)

pub fn language(&self) -> u32

For requirements on use of the language field, see “Use of the language field in ‘cmap’ subtables” in this document.

pub fn num_groups(&self) -> u32

Number of groupings which follow

pub fn groups(&self) -> &'a [SequentialMapGroup]

Array of SequentialMapGroup records.

impl<'a> Cmap12<'a>

pub fn map_codepoint(&self, codepoint: impl Into<u32>) -> Option<GlyphId>

Maps a codepoint to a nominal glyph identifier.

pub fn iter(&self) -> Cmap12Iter<'a>

Returns an iterator over all (codepoint, glyph identifier) pairs in the subtable.

Malicious and malformed fonts can produce a large number of invalid pairs. Use Self::iter_with_limits to generate a pruned sequence that is limited to reasonable values.

pub fn iter_with_limits(&self, limits: Cmap12IterLimits) -> Cmap12Iter<'a>

Returns an iterator over all (codepoint, glyph identifier) pairs in the subtable within the given limits.

Trait Implementations

impl<'a> FontRead<'a> for Cmap12<'a>

fn read(data: FontData<'a>) -> Result<Self, ReadError>

Read an instance of Self from the provided data, performing validation.