Enum CodingScheme 

pub enum CodingScheme {
    OneByte,
    TwoBytes,
    MixedTwoBytes,
    MixedFourBytes,
}

How a byte string splits into character codes (ISO 32000-1 §9.7.6.2).

The default is TwoBytes, and that default is load-bearing: an unrecognised predefined name and a CMap stream with no usable codespacerange both decode as fixed 2-byte codes.

use pdfrum_cmap::CodingScheme;

assert_eq!(CodingScheme::default(), CodingScheme::TwoBytes);

Variants

OneByte

Every byte is its own code.

TwoBytes

Every code is exactly two bytes, big-endian.

MixedTwoBytes

A set of leading bytes starts a two-byte code; every other byte is a one-byte code.

MixedFourBytes

Codespace ranges decide the width of each code, one to four bytes.

Trait Implementations

impl Clone for CodingScheme

fn clone(&self) -> CodingScheme

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CodingScheme

impl Debug for CodingScheme

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

Formats the value using the given formatter.

impl Default for CodingScheme

fn default() -> CodingScheme

Returns the “default value” for a type.

impl Eq for CodingScheme

impl Hash for CodingScheme

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for CodingScheme

fn cmp(&self, other: &CodingScheme) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for CodingScheme

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for CodingScheme

fn partial_cmp(&self, other: &CodingScheme) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for CodingScheme