Golang TruncateRunes 예제들

예제 #1

파일: possessive_filter_en.go 프로젝트: acgshare/bleve

func (s *PossessiveFilter) Filter(input analysis.TokenStream) analysis.TokenStream {
	for _, token := range input {
		runes := bytes.Runes(token.Term)
		if len(runes) >= 2 {
			secondToLastRune := runes[len(runes)-2]
			lastRune := runes[len(runes)-1]
			if (secondToLastRune == rightSingleQuotationMark ||
				secondToLastRune == apostrophe ||
				secondToLastRune == fullWidthApostrophe) &&
				(lastRune == 's' || lastRune == 'S') {
				token.Term = analysis.TruncateRunes(token.Term, 2)
			}
		}
	}
	return input
}

예제 #2

파일: hindi_stemmer_filter.go 프로젝트: acgshare/bleve

func stem(input []byte) []byte {
	inputLen := utf8.RuneCount(input)

	// 5
	if inputLen > 6 &&
		(bytes.HasSuffix(input, []byte("ाएंगी")) ||
			bytes.HasSuffix(input, []byte("ाएंगे")) ||
			bytes.HasSuffix(input, []byte("ाऊंगी")) ||
			bytes.HasSuffix(input, []byte("ाऊंगा")) ||
			bytes.HasSuffix(input, []byte("ाइयाँ")) ||
			bytes.HasSuffix(input, []byte("ाइयों")) ||
			bytes.HasSuffix(input, []byte("ाइयां"))) {
		return analysis.TruncateRunes(input, 5)
	}

	// 4
	if inputLen > 5 &&
		(bytes.HasSuffix(input, []byte("ाएगी")) ||
			bytes.HasSuffix(input, []byte("ाएगा")) ||
			bytes.HasSuffix(input, []byte("ाओगी")) ||
			bytes.HasSuffix(input, []byte("ाओगे")) ||
			bytes.HasSuffix(input, []byte("एंगी")) ||
			bytes.HasSuffix(input, []byte("ेंगी")) ||
			bytes.HasSuffix(input, []byte("एंगे")) ||
			bytes.HasSuffix(input, []byte("ेंगे")) ||
			bytes.HasSuffix(input, []byte("ूंगी")) ||
			bytes.HasSuffix(input, []byte("ूंगा")) ||
			bytes.HasSuffix(input, []byte("ातीं")) ||
			bytes.HasSuffix(input, []byte("नाओं")) ||
			bytes.HasSuffix(input, []byte("नाएं")) ||
			bytes.HasSuffix(input, []byte("ताओं")) ||
			bytes.HasSuffix(input, []byte("ताएं")) ||
			bytes.HasSuffix(input, []byte("ियाँ")) ||
			bytes.HasSuffix(input, []byte("ियों")) ||
			bytes.HasSuffix(input, []byte("ियां"))) {
		return analysis.TruncateRunes(input, 4)
	}

	// 3
	if inputLen > 4 &&
		(bytes.HasSuffix(input, []byte("ाकर")) ||
			bytes.HasSuffix(input, []byte("ाइए")) ||
			bytes.HasSuffix(input, []byte("ाईं")) ||
			bytes.HasSuffix(input, []byte("ाया")) ||
			bytes.HasSuffix(input, []byte("ेगी")) ||
			bytes.HasSuffix(input, []byte("ेगा")) ||
			bytes.HasSuffix(input, []byte("ोगी")) ||
			bytes.HasSuffix(input, []byte("ोगे")) ||
			bytes.HasSuffix(input, []byte("ाने")) ||
			bytes.HasSuffix(input, []byte("ाना")) ||
			bytes.HasSuffix(input, []byte("ाते")) ||
			bytes.HasSuffix(input, []byte("ाती")) ||
			bytes.HasSuffix(input, []byte("ाता")) ||
			bytes.HasSuffix(input, []byte("तीं")) ||
			bytes.HasSuffix(input, []byte("ाओं")) ||
			bytes.HasSuffix(input, []byte("ाएं")) ||
			bytes.HasSuffix(input, []byte("ुओं")) ||
			bytes.HasSuffix(input, []byte("ुएं")) ||
			bytes.HasSuffix(input, []byte("ुआं"))) {
		return analysis.TruncateRunes(input, 3)
	}

	// 2
	if inputLen > 3 &&
		(bytes.HasSuffix(input, []byte("कर")) ||
			bytes.HasSuffix(input, []byte("ाओ")) ||
			bytes.HasSuffix(input, []byte("िए")) ||
			bytes.HasSuffix(input, []byte("ाई")) ||
			bytes.HasSuffix(input, []byte("ाए")) ||
			bytes.HasSuffix(input, []byte("ने")) ||
			bytes.HasSuffix(input, []byte("नी")) ||
			bytes.HasSuffix(input, []byte("ना")) ||
			bytes.HasSuffix(input, []byte("ते")) ||
			bytes.HasSuffix(input, []byte("ीं")) ||
			bytes.HasSuffix(input, []byte("ती")) ||
			bytes.HasSuffix(input, []byte("ता")) ||
			bytes.HasSuffix(input, []byte("ाँ")) ||
			bytes.HasSuffix(input, []byte("ां")) ||
			bytes.HasSuffix(input, []byte("ों")) ||
			bytes.HasSuffix(input, []byte("ें"))) {
		return analysis.TruncateRunes(input, 2)
	}

	// 1
	if inputLen > 2 &&
		(bytes.HasSuffix(input, []byte("ो")) ||
			bytes.HasSuffix(input, []byte("े")) ||
			bytes.HasSuffix(input, []byte("ू")) ||
			bytes.HasSuffix(input, []byte("ु")) ||
			bytes.HasSuffix(input, []byte("ी")) ||
			bytes.HasSuffix(input, []byte("ि")) ||
			bytes.HasSuffix(input, []byte("ा"))) {
		return analysis.TruncateRunes(input, 1)
	}

	return input
}