// This file is part of ICU4X. For terms of use, please see the file
// called LICENSE at the top level of the ICU4X source tree
// (online at:
https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
use icu_segmenter::LineBreakOptions;
use icu_segmenter::LineBreakStrictness;
use icu_segmenter::LineBreakWordOption;
use icu_segmenter::LineSegmenter;
fn check_with_options(
s: &str,
mut expect_utf8: Vec<usize>,
mut expect_utf16: Vec<usize>,
options: LineBreakOptions,
) {
let segmenter = LineSegmenter::new_dictionary_with_options(options);
let iter = segmenter.segment_str(s);
let result: Vec<usize> = iter.collect();
expect_utf8.insert(0, 0);
assert_eq!(expect_utf8, result, "{s}");
let s_utf16: Vec<u16> = s.encode_utf16().collect();
let iter = segmenter.segment_utf16(&s_utf16);
let result: Vec<usize> = iter.collect();
expect_utf16.insert(0, 0);
assert_eq!(expect_utf16, result, "{s}");
}
fn strict(s: &str, ja_zh: bool, expect_utf8: Vec<usize>, expect_utf16: Vec<usize>) {
let mut options = LineBreakOptions::default();
options.strictness = LineBreakStrictness::Strict;
options.word_option = LineBreakWordOption::Normal;
options.ja_zh = ja_zh;
check_with_options(s, expect_utf8, expect_utf16, options);
}
fn normal(s: &str, ja_zh: bool, expect_utf8: Vec<usize>, expect_utf16: Vec<usize>) {
let mut options = LineBreakOptions::default();
options.strictness = LineBreakStrictness::Normal;
options.word_option = LineBreakWordOption::Normal;
options.ja_zh = ja_zh;
check_with_options(s, expect_utf8, expect_utf16, options);
}
fn loose(s: &str, ja_zh: bool, expect_utf8: Vec<usize>, expect_utf16: Vec<usize>) {
let mut options = LineBreakOptions::default();
options.strictness = LineBreakStrictness::Loose;
options.word_option = LineBreakWordOption::Normal;
options.ja_zh = ja_zh;
check_with_options(s, expect_utf8, expect_utf16, options);
}
fn anywhere(s: &str, ja_zh: bool, expect_utf8: Vec<usize>, expect_utf16: Vec<usize>) {
let mut options = LineBreakOptions::default();
options.strictness = LineBreakStrictness::Anywhere;
options.word_option = LineBreakWordOption::Normal;
options.ja_zh = ja_zh;
check_with_options(s, expect_utf8, expect_utf16, options);
}
#[test]
fn linebreak_strict() {
// from css/css-text/line-break/line-break-*-011.xht
strict("サ\u{3041}サ", false, vec![6, 9], vec![2, 3]);
// from css/css-text/line-break/line-break-*-012.xht
strict("サ\u{30FC}サ", false, vec![6, 9], vec![2, 3]);
// from css/css-text/line-break/line-break-*-013.xht
strict("サ\u{301C}サ", false, vec![6, 9], vec![2, 3]);
// from css/css-text/line-break/line-break-*-014.xht
strict("サ\u{3005}サ", false, vec![6, 9], vec![2, 3]);
// from css/css-text/line-break/line-break-*-015a.xht
// XXX ID x IN in UAX14. But why?
strict("サ\u{2025}\u{2025}サ", false, vec![9, 12], vec![3, 4]);
// from css/css-text/line-break/line-break-*-016a.xht
strict("サ\u{30FB}サ", false, vec![6, 9], vec![2, 3]);
// from css/css-text/line-break/line-break-*-017a.xht
strict("サ\u{00B0}サ", false, vec![5, 8], vec![2, 3]);
// from css/css-text/line-break/line-break-*-018.xht
//strict("サ\u{20AC}サ", false, vec![9], vec![3]);
// from css/css-text/i18n/ja/css-text-line-break-ja-pr-strict.html
// TODO: Why ID ÷ ID × PR × ID ÷ ID ?
//strict("文文\u{00b1}字字", true, vec![3, 11, 14], vec![1, 4, 5]);
//strict("文文\u{20AC}字字", true, vec![3, 11, 14], vec![1, 4, 5]);
//strict("文文\u{FF04}字字", true, vec![3, 11, 14], vec![1, 4, 5]);
}
#[test]
fn linebreak_normal() {
// from css/css-text/line-break/line-break-*-011.xht
normal("サ\u{3041}サ", false, vec![3, 6, 9], vec![1, 2, 3]);
// from css/css-text/line-break/line-break-*-012.xht
normal("サ\u{30FC}サ", false, vec![3, 6, 9], vec![1, 2, 3]);
// from css/css-text/line-break/line-break-*-013.xht
normal("サ\u{301C}サ", true, vec![3, 6, 9], vec![1, 2, 3]);
// from css/css-text/line-break/line-break-*-014.xht
normal("サ\u{3005}サ", true, vec![6, 9], vec![2, 3]);
// from css/css-text/line-break/line-break-*-015.xht
normal("サ\u{2025}\u{2025}サ", true, vec![9, 12], vec![3, 4]);
// from css/css-text/line-break/line-break-*-016a.xht
normal("サ\u{30FB}サ", true, vec![6, 9], vec![2, 3]);
// from css/css-text/line-break/line-break-*-017a.xht
normal("サ\u{00B0}サ", true, vec![5, 8], vec![2, 3]);
// from css/css-text/line-break/line-break-*-018.xht
normal("サ\u{20AC}サ", true, vec![3, 9], vec![1, 3]);
// from css/css-text/i18n/unknown-lang/css-text-line-break-pr-normal.html
// TODO: Why ID ÷ ID × PR × ID ÷ ID ?
//normal("文文\u{00b1}字字", false, vec![3, 11, 14], vec![1, 4, 5]);
//normal("文文\u{20AC}字字", false, vec![3, 11, 14], vec![1, 4, 5]);
//normal("文文\u{2116}字字", false, vec![3, 11, 14], vec![1, 4, 5]);
}
#[test]
fn linebreak_loose() {
// from css/css-text/line-break/line-break-*-011.xht
loose("サ\u{3041}サ", true, vec![3, 6, 9], vec![1, 2, 3]);
// from css/css-text/line-break/line-break-*-012.xht
loose("サ\u{30FC}サ", true, vec![3, 6, 9], vec![1, 2, 3]);
// from css/css-text/line-break/line-break-loose-013.xht
loose("サ\u{301C}サ", true, vec![3, 6, 9], vec![1, 2, 3]);
// from css/css-text/line-break/line-break-*-014.xht
loose("サ\u{3005}サ", true, vec![3, 6, 9], vec![1, 2, 3]);
// from css/css-text/line-break/line-break-*-015.xht
loose(
"サ\u{2025}\u{2025}サ",
true,
vec![3, 6, 9, 12],
vec![1, 2, 3, 4],
);
// from css/css-text/line-break/line-break-*-016a.xht
loose("サ\u{30FB}サ", true, vec![3, 6, 9], vec![1, 2, 3]);
// from css/css-text/line-break/line-break-*-017a.xht
loose("サ\u{00B0}サ", true, vec![3, 5, 8], vec![1, 2, 3]);
// from css/css-text/line-break/line-break-*-018.xht
loose("文\u{20AC}文", true, vec![3, 6, 9], vec![1, 2, 3]);
loose("文\u{2116}文", true, vec![3, 6, 9], vec![1, 2, 3]);
loose("文\u{ff04}文", true, vec![3, 6, 9], vec![1, 2, 3]);
loose("文\u{ffe1}文", true, vec![3, 6, 9], vec![1, 2, 3]);
loose("文\u{ffe5}文", true, vec![3, 6, 9], vec![1, 2, 3]);
// from css/css-text/i18n/ja/css-text-line-break-ja-pr-loose.html
loose("文\u{00b1}文", true, vec![3, 5, 8], vec![1, 2, 3]);
loose("文\u{20ac}文", true, vec![3, 6, 9], vec![1, 2, 3]);
loose("文\u{ff04}文", true, vec![3, 6, 9], vec![1, 2, 3]);
// from css/css-text/i18n/unknown-lang/css-text-line-break-in-loose.html
loose("文\u{2024}文", false, vec![3, 6, 9], vec![1, 2, 3]);
loose("文\u{2025}文", false, vec![3, 6, 9], vec![1, 2, 3]);
loose("文\u{2026}文", false, vec![3, 6, 9], vec![1, 2, 3]);
loose("文\u{22ef}文", false, vec![3, 6, 9], vec![1, 2, 3]);
loose("文\u{fe19}文", false, vec![3, 6, 9], vec![1, 2, 3]);
// from css/css-text/i18n/unknown-lang/css-text-line-break-pr-loose.html
//loose("文\u{00b1}文", false, vec![8], vec![3]);
//loose("文\u{20ac}文", false, vec![9], vec![3]);
//loose("文\u{2116}文", false, vec![9], vec![3]);
//loose("文\u{ff04}文", false, vec![9], vec![3]);
// from css/css-text/i18n/zh/css-text-line-break-zh-in-loose.xht
loose("文\u{2024}文", true, vec![3, 6, 9], vec![1, 2, 3]);
loose("文\u{2025}文", true, vec![3, 6, 9], vec![1, 2, 3]);
loose("文\u{2026}文", true, vec![3, 6, 9], vec![1, 2, 3]);
loose("文\u{22ef}文", true, vec![3, 6, 9], vec![1, 2, 3]);
loose("文\u{fe19}文", true, vec![3, 6, 9], vec![1, 2, 3]);
// css/css-text/line-break/line-break-loose-hyphens-001.html
loose("文\u{2010}文", true, vec![3, 6, 9], vec![1, 2, 3]);
loose("文\u{2013}文", true, vec![3, 6, 9], vec![1, 2, 3]);
// css/css-text/line-break/line-break-loose-hyphens-003.html
loose("aa\u{2010}", false, vec![5], vec![3]);
loose("aa\u{2013}", false, vec![5], vec![3]);
}
#[test]
fn linebreak_anywhere() {
// css/css-text/line-break/line-break-anywhere-001.html
anywhere(
"aa-a.a)a,a) a\u{00A0}aa\u{2060}a\u{200D}a･a",
true,
vec![
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 20, 21, 24, 25, 28, 29,
],
vec![
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22,
],
);
// css/css-text/line-break/line-break-anywhere-002.html
anywhere(
"no hyphenation",
false,
vec![1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14],
vec![1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14],
);
// css/css-text/line-break/line-break-anywhere-003.html
anywhere("latin", false, vec![1, 2, 3, 4, 5], vec![1, 2, 3, 4, 5]);
// css/css-text/line-break/line-break-anywhere-004.html
anywhere(
"XX XXX",
false,
vec![1, 2, 3, 4, 5, 6],
vec![1, 2, 3, 4, 5, 6],
);
// css/css-text/line-break/line-break-anywhere-005.html
anywhere("X X", false, vec![1, 2, 3], vec![1, 2, 3]);
// css/css-text/line-break/line-break-anywhere-006.html
anywhere(
"XXXX\u{00A0}XXXX",
false,
vec![1, 2, 3, 4, 6, 7, 8, 9, 10],
vec![1, 2, 3, 4, 5, 6, 7, 8, 9],
);
// css/css-text/line-break/line-break-anywhere-007.html
anywhere(
"X XX...",
true,
vec![1, 2, 3, 4, 5, 6, 7],
vec![1, 2, 3, 4, 5, 6, 7],
);
// css/css-text/line-break/line-break-anywhere-008.html
anywhere(
"X XX...",
true,
vec![1, 2, 3, 4, 5, 6, 7],
vec![1, 2, 3, 4, 5, 6, 7],
);
// css/css-text/line-break/line-break-anywhere-009.html
anywhere("X\u{00A0}X", true, vec![1, 3, 4], vec![1, 2, 3]);
// css/css-text/line-break/line-break-anywhere-010.html
anywhere(
"XXXX\u{00A0}XXXX",
true,
vec![1, 2, 3, 4, 6, 7, 8, 9, 10],
vec![1, 2, 3, 4, 5, 6, 7, 8, 9],
);
// css/css-text/line-break/line-break-anywhere-011.html
anywhere("XX///", true, vec![1, 2, 3, 4, 5], vec![1, 2, 3, 4, 5]);
// css/css-text/line-break/line-break-anywhere-012.html
anywhere(
"X XX\\\\\\",
true,
vec![1, 2, 3, 4, 5, 6, 7],
vec![1, 2, 3, 4, 5, 6, 7],
);
// css/css-text/line-break/line-break-anywhere-013.html
anywhere("XXX/X", true, vec![1, 2, 3, 4, 5], vec![1, 2, 3, 4, 5]);
// css/css-text/line-break/line-break-anywhere-014.html
anywhere("XXX\\X", false, vec![1, 2, 3, 4, 5], vec![1, 2, 3, 4, 5]);
// css/css-text/line-break/line-break-anywhere-015.html
anywhere("XXX\\X", false, vec![1, 2, 3, 4, 5], vec![1, 2, 3, 4, 5]);
// css/css-text/line-break/line-break-anywhere-016.html
anywhere("XXX/X", false, vec![1, 2, 3, 4, 5], vec![1, 2, 3, 4, 5]);
// css/css-text/line-break/line-break-anywhere-017.html
anywhere(
"XXXX X",
false,
vec![1, 2, 3, 4, 5, 6],
vec![1, 2, 3, 4, 5, 6],
);
// line-break-anywhere-overrides-uax-behavior-001.htm
anywhere(
"XX\u{2060}XX",
false,
vec![1, 2, 5, 6, 7],
vec![1, 2, 3, 4, 5],
);
// line-break-anywhere-overrides-uax-behavior-004.htm
anywhere(
"..\u{200B}...X",
false,
vec![1, 2, 5, 6, 7, 8, 9],
vec![1, 2, 3, 4, 5, 6, 7],
);
}
