human_bytes

A Rust crate that converts bytes into human-readable values.

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It can return either KB/MB/GB/TB or KiB/MiB/GiB/TiB via the bibytes feature, which enables the power of 2 unit system.

(1 KB = 1024 B, 1 KiB = 1024 B, the only thing that changes is the suffix).

It supports from 0 bytes to several yottabytes (I cannot tell how many because I have to use u128s to fit a single YB)

Usage

Add to your Cargo.toml:

```toml [dependencies] human_bytes = "0.3"

Or

human_bytes = { version = "0.3", features = ["bibytes"] } ```

And then

```rust use humanbytes::humanbytes;

asserteq!(humanbytes(563200u32), "550 KB".tostring()); // or asserteq!(humanbytes(563200u64 as f64), "550 KB".tostring()); // __________/ // | // | Needed only when you're using u64 values, // | because f64 doesn't implement std::convert::From<u64>

// With the bibytes feature enabled: asserteq!(humanbytes(563200u32), "550 KiB".to_string()); ```

The crate is dependency-free, but if you want an +/- 15% speed improvement, there's a fast feature that uses lexical instead of std::format! in the number-to-string conversion

toml [dependencies] human_bytes = { version = "0.3", features = ["fast"] }

About

The code is based on a PHP function I found here.

It is useful because you don't have to provide a prefix, it does it on its own. It'll always return 1 MB instead of 1000 KB

It has some tests I wrote to check that the conversion is correct, and it returns decimals (e.g. 16.5 GB)

Changelog

Check the CHANGELOG.md

License

BSD 2-clause (c) 2020 Namkhai B.