unicode-linebreak

实现 Unicode 标准附件 #14 中描述的行断算法。

给定输入文本，定位“行断点”，或当显示文本时换行的合适位置。

示例

use unicode_linebreak::{linebreaks, BreakOpportunity::{Mandatory, Allowed}};

let text = "a b \nc";
assert!(linebreaks(text).eq([
	(2, Allowed),   // May break after first space
	(5, Mandatory), // Must break after line feed
	(6, Mandatory)  // Must break at end of text, so that there always is at least one LB
]));

开发

在克隆仓库或修改 LineBreak.txt 后，必须（重新）生成表格

# Generate src/tables.rs
(cd gen-tables && cargo run)
# Run tests to make sure it was successful
cargo test