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LibJS: Implement Intl %SegmentsPrototype%.containing
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4 changed files with 79 additions and 1 deletions
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@ -10,6 +10,48 @@ describe("correct behavior", () => {
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);
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});
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test("returns segments object with valid containing method", () => {
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const string = "hello friends!";
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const graphemeSegmenter = new Intl.Segmenter("en", { granularity: "grapheme" });
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const graphemeSegments = graphemeSegmenter.segment(string);
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const graphemeSegment0 = graphemeSegments.containing(0);
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expect(graphemeSegment0.segment).toBe("h");
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expect(graphemeSegment0.index).toBe(0);
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expect(graphemeSegment0.input).toBe(string);
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expect(graphemeSegment0.isWordLike).toBeUndefined();
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const graphemeSegment5 = graphemeSegments.containing(5);
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expect(graphemeSegment5.segment).toBe(" ");
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expect(graphemeSegment5.index).toBe(5);
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expect(graphemeSegment5.input).toBe(string);
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expect(graphemeSegment5.isWordLike).toBeUndefined();
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const wordSegmenter = new Intl.Segmenter("en", { granularity: "word" });
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const wordSegments = wordSegmenter.segment(string);
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const wordSegment0 = wordSegments.containing(0);
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expect(wordSegment0.segment).toBe("hello");
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expect(wordSegment0.index).toBe(0);
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expect(wordSegment0.input).toBe(string);
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// FIXME: expect(wordSegment0.isWordLike).toBeTrue();
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const wordSegment5 = wordSegments.containing(5);
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expect(wordSegment5.segment).toBe(" ");
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expect(wordSegment5.index).toBe(5);
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expect(wordSegment5.input).toBe(string);
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expect(wordSegment5.isWordLike).toBeFalse();
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const sentenceSegmenter = new Intl.Segmenter("en", { granularity: "sentence" });
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const sentenceSegments = sentenceSegmenter.segment(string);
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const sentenceSegment0 = sentenceSegments.containing(0);
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expect(sentenceSegment0.segment).toBe(string);
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expect(sentenceSegment0.index).toBe(0);
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expect(sentenceSegment0.input).toBe(string);
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expect(sentenceSegment0.isWordLike).toBeUndefined();
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const sentenceSegment5 = sentenceSegments.containing(5);
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expect(sentenceSegment5.segment).toBe(sentenceSegment0.segment);
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expect(sentenceSegment5.index).toBe(sentenceSegment0.index);
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expect(sentenceSegment5.input).toBe(sentenceSegment0.input);
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expect(sentenceSegment5.isWordLike).toBe(sentenceSegment0.isWordLike);
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});
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test("returns segments object segment iterator", () => {
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const segmenter = new Intl.Segmenter();
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const segments = segmenter.segment("hello friends!");
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