Examples of org.codehaus.jparsec.DefaultSourceLocator

org.codehaus.jparsec.DefaultSourceLocator
Default implementation of {@link SourceLocator}.
This class internally keeps a cache of the indices of all the line break characters scanned so far, therefore repeated location lookup can be done in amortized log(n) time.
It is not multi-thread safe. @author Ben Yu

    addLineBreaks(locator, 3, 5, 7);
    assertEquals(new Location(5, 1), locator.lookup(8));
  }
  
  public void testLookup_secondCharInLastLine() {
    DefaultSourceLocator locator = new DefaultSourceLocator("whatever", 2, 3);
    addLineBreaks(locator, 3, 5, 7);
    assertEquals(new Location(5, 2), locator.lookup(9));
  }

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    addLineBreaks(locator, 3, 5, 7);
    assertEquals(new Location(5, 2), locator.lookup(9));
  }
  
  public void testScanTo_indexOutOfBounds() {
    DefaultSourceLocator locator = new DefaultSourceLocator("whatever", 2, 3);
    try {
      locator.scanTo(100);
      fail();
    } catch (StringIndexOutOfBoundsException e) {}
  }

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      fail();
    } catch (StringIndexOutOfBoundsException e) {}
  }
  
  public void testScanTo_indexOnEof() {
    DefaultSourceLocator locator = new DefaultSourceLocator("foo", 2, 3);
    assertEquals(new Location(2, 6), locator.scanTo(3));
    assertEquals(3, locator.nextIndex);
    assertEquals(3, locator.nextColumnIndex);
  }

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    assertEquals(3, locator.nextIndex);
    assertEquals(3, locator.nextColumnIndex);
  }
  
  public void testScanTo_spansLines() {
    DefaultSourceLocator locator = new DefaultSourceLocator("foo\nbar\n", 2, 3);
    assertEquals(new Location(3, 1), locator.scanTo(4));
    assertEquals(5, locator.nextIndex);
    assertEquals(1, locator.nextColumnIndex);
  }

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    assertEquals(5, locator.nextIndex);
    assertEquals(1, locator.nextColumnIndex);
  }
  
  public void testScanTo_lastCharOfLine() {
    DefaultSourceLocator locator = new DefaultSourceLocator("foo\nbar\n", 2, 3);
    assertEquals(new Location(3, 4), locator.scanTo(7));
    assertEquals(8, locator.nextIndex);
    assertEquals(0, locator.nextColumnIndex);
  }

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    assertEquals(8, locator.nextIndex);
    assertEquals(0, locator.nextColumnIndex);
  }
  
  public void testLocate() {
    DefaultSourceLocator locator = new DefaultSourceLocator("foo\nbar\n", 2, 3);
    assertEquals(new Location(3, 4), locator.locate(7));
    assertEquals(new Location(2, 5), locator.locate(2)); // this will call lookup()
  }

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Related Classes of org.codehaus.jparsec.DefaultSourceLocator

org.codehaus.jparsec.DefaultSourceLocatorTest

org.codehaus.jparsec.error.Location

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