Enum Encoding 

pub enum Encoding {
    Standard,
    Expert,
    IsoLatin1,
    Custom(Box<[Option<Box<str>>; 256]>),
}

The font’s built-in character-code → glyph-name mapping.

The Custom case stores names rather than glyph ids so a caller can ask what a code means even when the /CharStrings dictionary has no such glyph — which is exactly the situation a subsetted font leaves behind.

Variants

Standard

Adobe StandardEncoding.

Expert

Adobe ExpertEncoding.

IsoLatin1

Adobe ISOLatin1Encoding.

Custom(Box<[Option<Box<str>>; 256]>)

A vector the font built itself. Entries the font left at .notdef are None.

Implementations

impl Encoding

pub fn glyph_name(&self, code: u8) -> Option<&str>

The glyph name a character code selects, or None where the vector is .notdef.

use pdfrum_type1::Encoding;

assert_eq!(Encoding::Standard.glyph_name(b'A'), Some("A"));
assert_eq!(Encoding::Standard.glyph_name(b'\''), Some("quoteright"));
assert_eq!(Encoding::Standard.glyph_name(0), None); // .notdef

pub fn predefined(&self) -> Option<PredefinedEncoding>

Whether this is one of the three predefined vectors, and which.

pdfrum-font needs this to reproduce PDFium’s UseType1Charmap decision, which turns on whether the face carries a built-in Adobe encoding rather than a font-specific one.

Trait Implementations

impl Clone for Encoding

fn clone(&self) -> Encoding

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Encoding

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

Formats the value using the given formatter.

impl Eq for Encoding

impl PartialEq for Encoding

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Encoding