UNIC — Unicode 文本分段算法

此 UNIC 组件实现了来自 Unicode® 标准附件 #29 - Unicode 文本分段 的算法，用于检测文本元素边界，如用户感知字符（即 Grapheme Clusters）、单词 和 句子（最后一个尚未实现）。

注意

此组件的初始代码基于 unicode-segmentation。

lib.rs:

UNIC — Unicode 文本分段算法

unic 的组件：为 Rust 提供的 Unicode 和国际化软件包。

此 UNIC 组件实现了来自 Unicode® 标准附件 #29 - Unicode 文本分段 的算法，用于检测文本元素边界，如用户感知字符（即 Grapheme Clusters）、单词 和 句子（最后一个尚未实现）。

示例

assert_eq!(
    Graphemes::new("a\u{310}e\u{301}o\u{308}\u{332}").collect::<Vec<&str>>(),
    &["a\u{310}", "e\u{301}", "o\u{308}\u{332}"]
);

assert_eq!(
    Graphemes::new("a\r\nb🇺🇳🇮🇨").collect::<Vec<&str>>(),
    &["a", "\r\n", "b", "🇺🇳", "🇮🇨"]
);

assert_eq!(
    GraphemeIndices::new("a̐éö̲\r\n").collect::<Vec<(usize, &str)>>(),
    &[(0, "a̐"), (3, "é"), (6, "ö̲"), (11, "\r\n")]
);

fn has_alphanumeric(s: &&str) -> bool {
    s.chars().any(|ch| ch.is_alphanumeric())
}

assert_eq!(
    Words::new(
        "The quick (\"brown\") fox can't jump 32.3 feet, right?",
        has_alphanumeric,
    ).collect::<Vec<&str>>(),
    &["The", "quick", "brown", "fox", "can't", "jump", "32.3", "feet", "right"]
);

assert_eq!(
    WordBounds::new("The quick (\"brown\")  fox").collect::<Vec<&str>>(),
    &["The", " ", "quick", " ", "(", "\"", "brown", "\"", ")", " ", " ", "fox"]
);

assert_eq!(
    WordBoundIndices::new("Brr, it's 29.3°F!").collect::<Vec<(usize, &str)>>(),
    &[
        (0, "Brr"),
        (3, ","),
        (4, " "),
        (5, "it's"),
        (9, " "),
        (10, "29.3"),
        (14, "°"),
        (16, "F"),
        (17, "!")
    ]
);