Examples with ASCIIFoldingFilter org.apache.lucene.analysis.miscellaneous.ASCIIFoldingFilter used on opensource projects

Example 1 with ASCIIFoldingFilter

use of org.apache.lucene.analysis.miscellaneous.ASCIIFoldingFilter in project lucene-solr by apache.

the class NGramTokenFilterTest method testInvalidOffsets.

// LUCENE-3642
// EdgeNgram blindly adds term length to offset, but this can take things out of bounds
// wrt original text if a previous filter increases the length of the word (in this case æ -> ae)
// so in this case we behave like WDF, and preserve any modified offsets
public void testInvalidOffsets() throws Exception {
    Analyzer analyzer = new Analyzer() {

        @Override
        protected TokenStreamComponents createComponents(String fieldName) {
            Tokenizer tokenizer = new MockTokenizer(MockTokenizer.WHITESPACE, false);
            TokenFilter filters = new ASCIIFoldingFilter(tokenizer);
            filters = new NGramTokenFilter(filters, 2, 2);
            return new TokenStreamComponents(tokenizer, filters);
        }
    };
    assertAnalyzesTo(analyzer, "mosfellsbær", new String[] { "mo", "os", "sf", "fe", "el", "ll", "ls", "sb", "ba", "ae", "er" }, new int[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, new int[] { 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11 }, new int[] { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 });
    analyzer.close();
}

Example 2 with ASCIIFoldingFilter

use of org.apache.lucene.analysis.miscellaneous.ASCIIFoldingFilter in project vertigo by KleeGroup.

the class DefaultAnalyzer method createComponents.

/**
 * Creates a TokenStream which tokenizes all the text in the provided Reader.
 *
 * @return A TokenStream build from a StandardTokenizer filtered with
 *         StandardFilter, StopFilter, FrenchStemFilter and LowerCaseFilter
 */
@Override
protected TokenStreamComponents createComponents(final String fieldName) {
    /* initialisation du token */
    final Tokenizer source = new StandardTokenizer();
    // -----
    /* on retire les élisions*/
    final CharArraySet elisionSet = new CharArraySet(Arrays.asList(LuceneConstants.ELISION_ARTICLES), true);
    TokenStream filter = new ElisionFilter(source, elisionSet);
    /* on retire article adjectif */
    filter = new StopFilter(filter, stopWords);
    /* on retire les accents */
    filter = new ASCIIFoldingFilter(filter);
    /* on met en minuscule */
    filter = new LowerCaseFilter(filter);
    return new TokenStreamComponents(source, filter);
}

Example 3 with ASCIIFoldingFilter

use of org.apache.lucene.analysis.miscellaneous.ASCIIFoldingFilter in project neo4j by neo4j.

the class StandardFoldingAnalyzer method createComponents.

@Override
protected TokenStreamComponents createComponents(String fieldName) {
    StandardTokenizer src = new StandardTokenizer();
    src.setMaxTokenLength(DEFAULT_MAX_TOKEN_LENGTH);
    TokenStream tok = new ASCIIFoldingFilter(src);
    tok = new LowerCaseFilter(tok);
    tok = new StopFilter(tok, stopwords);
    return new TokenStreamComponents(src, tok);
}

Example 4 with ASCIIFoldingFilter

use of org.apache.lucene.analysis.miscellaneous.ASCIIFoldingFilter in project crate by crate.

the class FingerprintAnalyzer method createComponents.

@Override
protected TokenStreamComponents createComponents(String s) {
    final Tokenizer tokenizer = new StandardTokenizer();
    TokenStream stream = tokenizer;
    stream = new LowerCaseFilter(stream);
    stream = new ASCIIFoldingFilter(stream, false);
    stream = new StopFilter(stream, stopWords);
    stream = new FingerprintFilter(stream, maxOutputSize, separator);
    return new TokenStreamComponents(tokenizer, stream);
}

Example 5 with ASCIIFoldingFilter

use of org.apache.lucene.analysis.miscellaneous.ASCIIFoldingFilter in project cogcomp-nlp by CogComp.

the class ASCIIEnglishAnalyzer method createComponents.

@Override
protected TokenStreamComponents createComponents(String fieldName) {
    final Tokenizer source = new StandardTokenizer();
    TokenStream result = new StandardFilter(source);
    result = new ASCIIFoldingFilter(result);
    result = new EnglishPossessiveFilter(result);
    result = new WordDelimiterFilter(result, WordDelimiterFilter.ALPHA, null);
    result = new LowerCaseFilter(result);
    result = new StopFilter(result, EnglishAnalyzer.getDefaultStopSet());
    result = new PorterStemFilter(result);
    return new TokenStreamComponents(source, result);
}