Crate unicode_segmentation[−][src]

Expand description

Iterators which split strings on Grapheme Cluster, Word or Sentence boundaries, according to the Unicode Standard Annex #29 rules.

extern crate unicode_segmentation;

use unicode_segmentation::UnicodeSegmentation;

fn main() {
    let s = "a̐éö̲\r\n";
    let g = UnicodeSegmentation::graphemes(s, true).collect::<Vec<&str>>();
    let b: &[_] = &["a̐", "é", "ö̲", "\r\n"];
    assert_eq!(g, b);

    let s = "The quick (\"brown\") fox can't jump 32.3 feet, right?";
    let w = s.unicode_words().collect::<Vec<&str>>();
    let b: &[_] = &["The", "quick", "brown", "fox", "can't", "jump", "32.3", "feet", "right"];
    assert_eq!(w, b);

    let s = "The quick (\"brown\")  fox";
    let w = s.split_word_bounds().collect::<Vec<&str>>();
    let b: &[_] = &["The", " ", "quick", " ", "(", "\"", "brown", "\"", ")", "  ", "fox"];
    assert_eq!(w, b);
}

no_std

unicode-segmentation does not depend on libstd, so it can be used in crates with the #![no_std] attribute.

crates.io

You can use this package in your project by adding the following to your Cargo.toml:

[dependencies]
unicode-segmentation = "1.7.1"

Structs

GraphemeCursor

Cursor-based segmenter for grapheme clusters.

GraphemeIndices

External iterator for grapheme clusters and byte offsets.

Graphemes

External iterator for a string’s grapheme clusters.

USentenceBoundIndices

External iterator for sentence boundaries and byte offsets.

USentenceBounds

External iterator for a string’s sentence boundaries.

UWordBoundIndices

External iterator for word boundaries and byte offsets.

UWordBounds

External iterator for a string’s word boundaries.

UnicodeSentences

An iterator over the substrings of a string which, after splitting the string on sentence boundaries, contain any characters with the Alphabetic property, or with General_Category=Number.

UnicodeWordIndices

An iterator over the substrings of a string which, after splitting the string on word boundaries, contain any characters with the Alphabetic property, or with General_Category=Number. This iterator also provides the byte offsets for each substring.

UnicodeWords

An iterator over the substrings of a string which, after splitting the string on word boundaries, contain any characters with the Alphabetic property, or with General_Category=Number.

Enums

GraphemeIncomplete

An error return indicating that not enough content was available in the provided chunk to satisfy the query, and that more content must be provided.

Constants

UNICODE_VERSION

The version of Unicode that this version of unicode-segmentation is based on.

Traits

UnicodeSegmentation

Methods for segmenting strings according to Unicode Standard Annex #29.