Enum Index

pub enum Index<'a> {
    Empty,
    Format1(Index1<'a>),
    Format2(Index2<'a>),
}

Common type for uniform access to CFF and CFF2 index formats.

Variants

Empty

Format1(Index1<'a>)

Format2(Index2<'a>)

Implementations

impl<'a> Index<'a>

pub fn new(data: &'a [u8], is_cff2: bool) -> Result<Self, Error>

Creates a new index from the given data.

The caller must specify whether the data comes from a CFF2 table.

pub fn count(&self) -> u32

Returns the number of objects in the index.

pub fn subr_bias(&self) -> i32

Computes a bias that is added to a subroutine operator in a charstring.

See https://learn.microsoft.com/en-us/typography/opentype/spec/cff2#9-local-and-global-subr-indexes

pub fn size_in_bytes(&self) -> Result<usize, ReadError>

Returns the total size in bytes of the index table.

pub fn get_offset(&self, index: usize) -> Result<usize, Error>

Returns the offset at the given index.

pub fn get(&self, index: usize) -> Result<&'a [u8], Error>

Returns the data for the object at the given index.

Trait Implementations

impl<'a> Clone for Index<'a>

fn clone(&self) -> Index<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for Index<'_>

fn default() -> Self

Returns the “default value” for a type.