Java Code Examples for dk.brics.automaton.RegExp#toAutomaton()

The following examples show how to use dk.brics.automaton.RegExp#toAutomaton() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: UnicodeTest.java    From multiregexp with MIT License 5 votes vote down vote up 
@Test
public void testAutomatonWithUnicode() {
    final RegExp regexp = new RegExp("([0-9]{2,4}年)?[0-9]{1,2}月[0-9]{1,2}日");
    final Automaton forwardAutomaton = regexp.toAutomaton();
    {
        final RunAutomaton runAutomaton = new RunAutomaton(forwardAutomaton);
        Assert.assertTrue(runAutomaton.run("1982年9月17日"));
        Assert.assertFalse(runAutomaton.run("1982年9月127日"));
    }
}
Example 2
Source File: StringPattern.java    From consulo with Apache License 2.0 5 votes vote down vote up 
@Nonnull
public StringPattern matchesBrics(@NonNls @Nonnull final String s) {
  final String escaped = StringUtil.escapeToRegexp(s);
  if (escaped.equals(s)) {
    return equalTo(s);
  }

  StringBuilder sb = new StringBuilder(s.length()*5);
  for (int i = 0; i < s.length(); i++) {
    final char c = s.charAt(i);
    if(c == ' ') {
      sb.append("<whitespace>");
    }
    else
    //This is really stupid and inconvenient builder - it breaks any normal pattern with uppercase
    if(Character.isUpperCase(c)) {
      sb.append('[').append(Character.toUpperCase(c)).append(Character.toLowerCase(c)).append(']');
    }
    else
    {
      sb.append(c);
    }
  }
  final RegExp regExp = new RegExp(sb.toString());
  final Automaton automaton = regExp.toAutomaton(new DatatypesAutomatonProvider());
  final RunAutomaton runAutomaton = new RunAutomaton(automaton, true);

  return with(new ValuePatternCondition<String>("matchesBrics") {
    @Override
    public boolean accepts(@Nonnull String str, final ProcessingContext context) {
      if (!str.isEmpty() && (str.charAt(0) == '"' || str.charAt(0) == '\'')) str = str.substring(1);
      return runAutomaton.run(str);
    }

    @Override
    public Collection<String> getValues() {
      return Collections.singleton(s);
    }
  });
}
Example 3
Source File: CompiledAutomaton.java    From spork with Apache License 2.0 4 votes vote down vote up 
public CompiledAutomaton( String rhsPattern ) {
    RegExp regexpr = new dk.brics.automaton.RegExp(rhsPattern, RegExp.NONE);
    Automaton auto = regexpr.toAutomaton();
    this.runauto = new RunAutomaton(auto, true);
}