segment-word-iterable.js 2.74 KB
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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Flags: --harmony-intl-segmenter

const seg = new Intl.Segmenter([], {granularity: "word"})
for (const text of [
    "Hello world!", // English
    " Hello world! ",  // English with space before/after
    " Hello world? Foo bar!", // English
    "Jedovatou mambu objevila žena v zahrádkářské kolonii.", // Czech
    "Việt Nam: Nhất thể hóa sẽ khác Trung Quốc?",  // Vietnamese
    "Σοβαρές ενστάσεις Κομισιόν για τον προϋπολογισμό της Ιταλίας", // Greek
    "Решение Индии о покупке российских С-400 расценили как вызов США",  // Russian
    "הרופא שהציל נשים והנערה ששועבדה ע",  // Hebrew,
    "ترامب للملك سلمان: أنا جاد للغاية.. عليك دفع المزيد", // Arabic
    "भारत की एस 400 मिसाइल के मुकाबले पाक की थाड, जानें कौन कितना ताकतवर",  //  Hindi
    "ரெட் அலர்ட் எச்சரிக்கை; புதுச்சேரியில் நாளை அரசு விடுமுறை!", // Tamil
    "'ఉత్తర్వులు అందే వరకు ఓటర్ల తుది జాబితాను వెబ్‌సైట్లో పెట్టవద్దు'", // Telugu
    "台北》抹黑柯P失敗?朱學恒酸:姚文智氣pupu嗆大老闆", // Chinese
    "วัดไทรตีระฆังเบาลงช่วงเข้าพรรษา เจ้าอาวาสเผยคนร้องเรียนรับผลกรรมแล้ว",  // Thai
    "九州北部の一部が暴風域に入りました(日直予報士 2018年10月06日) - 日本気象協会 tenki.jp",  // Japanese
    "법원 “다스 지분 처분권·수익권 모두 MB가 보유”", // Korean
    ]) {
  let segments = [];
  // Create another %SegmentIterator% to compare with result from the one that
  // created in the for of loop.
  let iter = seg.segment(text);
  let prev = 0;
  for (const v of seg.segment(text)) {
    assertTrue(["word", "none"].includes(v.breakType), v.breakType);
    assertEquals("string", typeof v.segment);
    assertTrue(v.segment.length > 0);
    segments.push(v.segment);

    // manually advance the iter.
    assertFalse(iter.following());
    assertEquals(iter.breakType, v.breakType);
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    assertEquals(text.substring(prev, iter.index), v.segment);
    prev = iter.index;
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  }
  assertTrue(iter.following());
  assertEquals(text, segments.join(''));
}