11 releases (6 stable)
1.5.0 | May 28, 2024 |
---|---|
1.4.0 | Nov 16, 2023 |
1.3.2 | Oct 3, 2023 |
1.2.1 | Apr 18, 2023 |
0.0.1 | Apr 29, 2021 |
#4 in Internationalization (i18n)
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Used in 69 crates
(14 directly)
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icu_segmenter
Segment strings by lines, graphemes, words, and sentences.
This module is published as its own crate (icu_segmenter
)
and as part of the icu
crate. See the latter for more details on the ICU4X project.
This module contains segmenter implementation for the following rules.
- Line segmenter that is compatible with Unicode Standard Annex #14, Unicode Line
Breaking Algorithm, with options to tailor line-breaking behavior for CSS
line-break
andword-break
properties. - Grapheme cluster segmenter, word segmenter, and sentence segmenter that are compatible with Unicode Standard Annex #29, Unicode Text Segmentation.
Examples
Line Break
Find line break opportunities:
use icu::segmenter::LineSegmenter;
let segmenter = LineSegmenter::new_auto();
let breakpoints: Vec<usize> = segmenter
.segment_str("Hello World. Xin chào thế giới!")
.collect();
assert_eq!(&breakpoints, &[0, 6, 13, 17, 23, 29, 36]);
See LineSegmenter
for more examples.
Grapheme Cluster Break
Find all grapheme cluster boundaries:
use icu::segmenter::GraphemeClusterSegmenter;
let segmenter = GraphemeClusterSegmenter::new();
let breakpoints: Vec<usize> = segmenter
.segment_str("Hello World. Xin chào thế giới!")
.collect();
assert_eq!(
&breakpoints,
&[
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
19, 21, 22, 23, 24, 25, 28, 29, 30, 31, 34, 35, 36
]
);
See GraphemeClusterSegmenter
for more examples.
Word Break
Find all word boundaries:
use icu::segmenter::WordSegmenter;
let segmenter = WordSegmenter::new_auto();
let breakpoints: Vec<usize> = segmenter
.segment_str("Hello World. Xin chào thế giới!")
.collect();
assert_eq!(
&breakpoints,
&[0, 5, 6, 11, 12, 13, 16, 17, 22, 23, 28, 29, 35, 36]
);
See WordSegmenter
for more examples.
Sentence Break
Segment the string into sentences:
use icu::segmenter::SentenceSegmenter;
let segmenter = SentenceSegmenter::new();
let breakpoints: Vec<usize> = segmenter
.segment_str("Hello World. Xin chào thế giới!")
.collect();
assert_eq!(&breakpoints, &[0, 13, 36]);
See SentenceSegmenter
for more examples.
More Information
For more information on development, authorship, contributing etc. please visit ICU4X home page
.