Yore

A Rust library for decoding and encoding character sets based on OEM code pages.

Features

• Fast performance *
• Minimal memory usage with Cow and shrink_to_fit
• Easy-to-use API
• Broad range of supported code pages
• Handles code pages with redefined ASCII characters (<0x80), such as '٪' in CP864

Usage

Add yore to your Cargo.toml file.

[dependencies]
yore = "1.1.0"

Examples

Using a specific code page

use yore::code_pages::{CP857, CP850};
use yore::{DecodeError, EncodeError};

// Vec contains ASCII "text"
let bytes = vec![116, 101, 120, 116];
// Vec contains ASCII "text " and codepoint 231
let bytes_undefined = vec![116, 101, 120, 116, 32, 231]; 

// Notice that decoding CP850 can't fail because it is completely defined
assert_eq!(CP850.decode(&bytes), "text");

// However, CP857 can fail
assert_eq!(CP857.decode(&bytes).unwrap(), "text");

// "text " + codepoint 231 
assert!(matches!(CP857.decode(&bytes_undefined), DecodeError));

// Lossy decoding won't fail due to fallback
assert_eq!(CP857.decode_lossy(&bytes_undefined), "text �");

// Encoding
assert_eq!(CP850.encode("text").unwrap(), bytes);
assert!(matches!(CP850.encode("text 🦀"), EncodeError));
assert_eq!(CP850.encode_lossy("text 🦀", 231), bytes_undefined);

Using a trait object

use yore::CodePage;
fn do_something(code_page: &dyn CodePage, bytes: &[u8]) {
    println!("{}", code_page.decode(bytes).unwrap());
}

Supported code pages

* Benchmarks

encoding_rs supports only a few of the encodings that oem_cp and yore support. Additionally, encoding_rs focuses on streaming use cases.

Refer to the bench crate for more details.