Package org.apache.lucene.util.automaton

Examples of org.apache.lucene.util.automaton.RegExp

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    if (deep) {
      int numIntersections = atLeast(3);
      for (int i = 0; i < numIntersections; i++) {
        String re = AutomatonTestUtil.randomRegexp(random());
        CompiledAutomaton automaton = new CompiledAutomaton(new RegExp(re, RegExp.NONE).toAutomaton());
        if (automaton.type == CompiledAutomaton.AUTOMATON_TYPE.NORMAL) {
          // TODO: test start term too
          TermsEnum leftIntersection = leftTerms.intersect(automaton, null);
          TermsEnum rightIntersection = rightTerms.intersect(automaton, null);
          assertTermsEnumEquals(info, leftReader, leftIntersection, rightIntersection, rarely());
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    if (deep) {
      int numIntersections = atLeast(3);
      for (int i = 0; i < numIntersections; i++) {
        String re = AutomatonTestUtil.randomRegexp(random());
        CompiledAutomaton automaton = new CompiledAutomaton(new RegExp(re, RegExp.NONE).toAutomaton());
        if (automaton.type == CompiledAutomaton.AUTOMATON_TYPE.NORMAL) {
          // TODO: test start term too
          TermsEnum leftIntersection = leftTerms.intersect(automaton, null);
          TermsEnum rightIntersection = rightTerms.intersect(automaton, null);
          assertTermsEnum(leftIntersection, rightIntersection, rarely());
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    if (deep) {
      int numIntersections = atLeast(3);
      for (int i = 0; i < numIntersections; i++) {
        String re = AutomatonTestUtil.randomRegexp(random());
        CompiledAutomaton automaton = new CompiledAutomaton(new RegExp(re, RegExp.NONE).toAutomaton());
        if (automaton.type == CompiledAutomaton.AUTOMATON_TYPE.NORMAL) {
          // TODO: test start term too
          TermsEnum leftIntersection = leftTerms.intersect(automaton, null);
          TermsEnum rightIntersection = rightTerms.intersect(automaton, null);
          assertTermsEnum(leftIntersection, rightIntersection, rarely());
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        System.out.println("TEST: got termsEnum=" + termsEnum);
      }
      BytesRef term;
      int ord = 0;

      Automaton automaton = new RegExp(".*", RegExp.NONE).toAutomaton();   
      final TermsEnum termsEnum2 = terms.intersect(new CompiledAutomaton(automaton, false, false), null);

      while((term = termsEnum.next()) != null) {
        BytesRef term2 = termsEnum2.next();
        assertNotNull(term2);
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  public void testMaxSizeEndHighlight() throws Exception {
    TestHighlightRunner helper = new TestHighlightRunner() {
      @Override
      public void run() throws Exception {
        CharacterRunAutomaton stopWords = new CharacterRunAutomaton(new RegExp("i[nt]").toAutomaton());
        TermQuery query = new TermQuery(new Term("text", "searchterm"));

        String text = "this is a text with searchterm in it";
        SimpleHTMLFormatter fm = new SimpleHTMLFormatter();
        Highlighter hg = getHighlighter(query, "text", fm);
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  public void testMaxSizeEndHighlight() throws Exception {
    TestHighlightRunner helper = new TestHighlightRunner() {
      @Override
      public void run() throws Exception {
        CharacterRunAutomaton stopWords = new CharacterRunAutomaton(new RegExp("i[nt]").toAutomaton());
        TermQuery query = new TermQuery(new Term("text", "searchterm"));

        String text = "this is a text with searchterm in it";
        SimpleHTMLFormatter fm = new SimpleHTMLFormatter();
        Highlighter hg = getHighlighter(query, "text", fm);
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  // Test some regular expressions as tokenization patterns
  /** Test a configuration where each character is a term */
  public void testSingleChar() throws Exception {
    CharacterRunAutomaton single =
        new CharacterRunAutomaton(new RegExp(".").toAutomaton());
    Analyzer a = new MockAnalyzer(random(), single, false);
    assertAnalyzesTo(a, "foobar",
        new String[] { "f", "o", "o", "b", "a", "r" },
        new int[] { 0, 1, 2, 3, 4, 5 },
        new int[] { 1, 2, 3, 4, 5, 6 }
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  }
 
  /** Test a configuration where two characters makes a term */
  public void testTwoChars() throws Exception {
    CharacterRunAutomaton single =
        new CharacterRunAutomaton(new RegExp("..").toAutomaton());
    Analyzer a = new MockAnalyzer(random(), single, false);
    assertAnalyzesTo(a, "foobar",
        new String[] { "fo", "ob", "ar"},
        new int[] { 0, 2, 4 },
        new int[] { 2, 4, 6 }
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  }
 
  /** Test a configuration where three characters makes a term */
  public void testThreeChars() throws Exception {
    CharacterRunAutomaton single =
        new CharacterRunAutomaton(new RegExp("...").toAutomaton());
    Analyzer a = new MockAnalyzer(random(), single, false);
    assertAnalyzesTo(a, "foobar",
        new String[] { "foo", "bar"},
        new int[] { 0, 3 },
        new int[] { 3, 6 }
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  }
 
  /** Test a configuration where word starts with one uppercase */
  public void testUppercase() throws Exception {
    CharacterRunAutomaton single =
        new CharacterRunAutomaton(new RegExp("[A-Z][a-z]*").toAutomaton());
    Analyzer a = new MockAnalyzer(random(), single, false);
    assertAnalyzesTo(a, "FooBarBAZ",
        new String[] { "Foo", "Bar", "B", "A", "Z"},
        new int[] { 0, 3, 6, 7, 8 },
        new int[] { 3, 6, 7, 8, 9 }
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Related Classes of org.apache.lucene.util.automaton.RegExp

  • io.crate.operation.operator.RegexpMatchOperator
  • org.apache.lucene.analysis.hunspell.Dictionary
  • org.apache.lucene.analysis.TestMockAnalyzer
  • org.apache.lucene.codecs.lucene41.TestBlockPostingsFormat3
  • org.apache.lucene.index.TestDuelingCodecs
  • org.apache.lucene.index.TestTermsEnum
  • org.apache.lucene.queryparser.flexible.standard.TestQPHelper
  • org.apache.lucene.queryparser.util.QueryParserTestBase
  • org.apache.lucene.search.highlight.HighlighterTest
  • org.apache.lucene.search.RegexpQuery
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