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Formats numbers into strings with thousands separators for readability.

License: MIT License

Rust 100.00%

rust-separator's Introduction

rust-separator

NOTE: This crate is entirely superseded by the very excellent num-format, which has all the features of separator and much, much more. I highly recommend using num-format instead of this crate.

Formats numbers into strings with thousands separators for readability. It currently supports floating-points (f32 and f64), unsigned integers (u16, u32, u64, u128), signed integers (i16, i32, i64, i128), and size types (isize and usize).

Usage

First, put separator as a dependency in your Cargo.toml as usual:

[dependencies]
separator = "0.3.1"

Then, import the Separatable trait, and call the separated_string on a number:

extern crate separator;

use separator::Separatable;

fn main() {
  let f = -120000000.34345;

  // Prints "-12,000,000.34345"
  println!("{}", f.separated_string());
}

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nemo157

rust-separator's Issues

Can not working for u128

my code

use separator::Separatable;

fn main() {
    // Create a stack-allocated buffer...
    // let f = -120000000.34345;

    let x : u128 = 271828182845904523;

    // Prints "-12,000,000.34345"
    // println!("{}", f.separated_string());
    println!("{}",  &x.separated_string());
}

next is error info:

error[E0599]: no method named `separated_string` found for type `u128` in the current scope
  --> src/main.rs:15:24
   |
15 |     println!("{}",  &x.separated_string());
   |                        ^^^^^^^^^^^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0599`.
error: Could not compile `numfmt`.

[feature request] adapt to print with given digit

let m = 10000.0 / 3.0;
// print 3333.33
println!("{:.2}", m);
// print 3,333.3333333333335
println!("{:}", m.separated_string());
// expectedd print 3,333.33
// actual print 3,
println!("{:.2}", m.separated_string());

rustc version: 1.52.1

[feature request] support for non-3 digit groupings

In some localizations, numbers are grouped in blocks of 4, instead of 3. It would be nice to have an option to pass this in when calling the string method.

If you'd like, I can take a stab at implementing this sometime if you give me some pointers.

impl Separatable for usize

It would be helpful to have a usize implementation as well. I have to cast to u64 as a work-around now. Thanks!

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