https://github.com/Aetf/unicode-truncate

Rust library for unicode-aware algorithm to pad or truncate `str` in terms of displayed width.
https://github.com/Aetf/unicode-truncate

padding rust truncate unicode width

Last synced: 7 months ago
JSON representation

Rust library for unicode-aware algorithm to pad or truncate `str` in terms of displayed width.

• Host: GitHub
• URL: https://github.com/Aetf/unicode-truncate
• Owner: Aetf
• License: other
• Created: 2019-08-15T01:24:50.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2024-12-31T12:55:06.000Z (10 months ago)
• Last Synced: 2025-03-01T23:44:32.549Z (8 months ago)
• Topics: padding, rust, truncate, unicode, width
• Language: Rust
• Homepage:
• Size: 78.1 KB
• Stars: 17
• Watchers: 5
• Forks: 5
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE-APACHE

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README

          
# unicode-truncate

Unicode-aware algorithm to pad or truncate `str` in terms of displayed width.

[![crates.io](https://img.shields.io/crates/v/unicode-truncate.svg)](https://crates.io/crates/unicode-truncate)

[![Documentation](https://docs.rs/unicode-truncate/badge.svg)](https://docs.rs/unicode-truncate)

[![Build Status](https://github.com/aetf/unicode-truncate/actions/workflows/rust.yml/badge.svg)](https://github.com/Aetf/unicode-truncate/actions)

## Examples

Safely truncate string to display width even not at character boundaries.

```rust

use unicode_truncate::UnicodeTruncateStr;

fn main() {

    assert_eq!("你好吗".unicode_truncate(5), ("你好", 4));

}

```

Making sure the string is displayed in exactly number of columns by combining padding and

truncating.

```rust

use unicode_truncate::UnicodeTruncateStr;

use unicode_truncate::Alignment;

use unicode_width::UnicodeWidthStr;

fn main() {

    let str = "你好吗".unicode_pad(5, Alignment::Left, true);

    assert_eq!(str, "你好 ");

    assert_eq!(str.width(), 5);

}

```

## Features

`unicode-truncate` can be built without `std` by disabling the default feature `std`. However, in

that case `unicode_truncate::UnicodeTruncateStr::unicode_pad` won't be available because it depends

on `std::string::String` and `std::borrow::Cow`.