OpenType

The package provides a parser for OpenType fonts. It might be helpful to have a look at a higher-level parser called font, which internally relies on this package.

Example

extern crate opentype;

use opentype::Font;
use opentype::truetype::{FontHeader, HorizontalHeader, NamingTable};

macro_rules! ok(($result:expr) => ($result.unwrap()));

let path = "SourceSerifPro-Regular.otf";
let mut reader = ok!(std::fs::File::open(path));
let font = ok!(Font::read(&mut reader));

let font_header: FontHeader = ok!(ok!(font.take(&mut reader)));
assert!(font_header.units_per_em == 1000);

let horizontal_header: HorizontalHeader = ok!(ok!(font.take(&mut reader)));
assert!(horizontal_header.ascender == 918);

let naming_table: NamingTable = ok!(ok!(font.take(&mut reader)));
match naming_table {
    NamingTable::Format0(ref table) => {
        let strings = ok!(table.strings());
        assert!(&strings[1] == "Source Serif Pro");
        assert!(&strings[9] == "Frank Grießhammer");
    },
    _ => unreachable!(),
}

Contribution

Your contribution is highly appreciated. Do not hesitate to open an issue or a pull request. Note that any contribution submitted for inclusion in the project will be licensed according to the terms given in LICENSE.md.