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# urlencoding
[](https://lib.rs/crates/urlencoding)
A tiny Rust library for doing URL percentage encoding and decoding. It percent-encodes everything except alphanumerics and `-`, `_`, `.`, `~`.
When decoding `+` is not treated as a space. Error recovery from incomplete percent-escapes follows the [WHATWG URL standard](https://url.spec.whatwg.org/).
## Usage
To encode a string, do the following:
```rust
use urlencoding::encode;
let encoded = encode("This string will be URL encoded.");
println!("{}", encoded);
// This%20string%20will%20be%20URL%20encoded.
```
To decode a string, it's only slightly different:
```rust
use urlencoding::decode;
let decoded = decode("%F0%9F%91%BE%20Exterminate%21")?;
println!("{}", decoded);
// 👾 Exterminate!
```
To decode allowing arbitrary bytes and invalid UTF-8:
```rust
use urlencoding::decode_binary;
let binary = decode_binary(b"%F1%F2%F3%C0%C1%C2");
let decoded = String::from_utf8_lossy(&binary);
```
This library returns [`Cow`](https://doc.rust-lang.org/stable/std/borrow/enum.Cow.html) to avoid allocating when decoding/encoding is not needed. Call `.into_owned()` on the `Cow` to get a `Vec` or `String`.
## License
This project is licensed under the MIT license. For more information see the `LICENSE` file.
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