Examples with ITextRegion org.eclipse.xtext.util.ITextRegion used on opensource projects

Example 21 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-core by eclipse.

the class TokenRegionProviderTest method testTokenMerge_1.

@Test
public void testTokenMerge_1() throws Exception {
    String model = " ab ";
    ITextRegion tokenRegion = tokenRegionProvider.getTokenRegion(model, new TextRegion(2, 0));
    assertEquals(1, tokenRegion.getOffset());
    assertEquals(2, tokenRegion.getLength());
}

Example 22 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-core by eclipse.

the class TokenRegionProviderTest method testTokenSplit.

@Test
public void testTokenSplit() throws Exception {
    String model = " a b ";
    ITextRegion tokenRegion = tokenRegionProvider.getTokenRegion(model, new TextRegion(2, 1));
    assertEquals(2, tokenRegion.getOffset());
    assertEquals(1, tokenRegion.getLength());
}

Example 23 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-core by eclipse.

the class TokenRegionProviderTest method testTokenRegionContainsRegion.

@Test
public void testTokenRegionContainsRegion() throws Exception {
    String modelAsString = "a1 / /* comment */ b2";
    List<CommonToken> tokens = getTokens(modelAsString);
    for (int length = 0; length < modelAsString.length(); ++length) {
        for (int offset = 0; offset + length < modelAsString.length(); ++offset) {
            ITextRegion tokenRegion = tokenRegionProvider.getTokenRegion(modelAsString, new TextRegion(offset, length));
            // System.out.println(offset + ":" + length + " -> " + tokenRegion);
            CommonToken firstToken = findTokenStartingAt(tokenRegion.getOffset(), tokens);
            assertTrue(firstToken.getStartIndex() <= offset);
            if (tokenRegion.getLength() != 0) {
                CommonToken lastToken = findTokenStopingAt(tokenRegion.getOffset() + tokenRegion.getLength() - 1, tokens);
                assertTrue(lastToken.getStopIndex() >= offset + length - 1);
            }
        }
    }
}

Example 24 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-core by eclipse.

the class TokenRegionProviderTest method testTokenSplit_1.

@Test
public void testTokenSplit_1() throws Exception {
    String model = " axb ";
    ITextRegion tokenRegion = tokenRegionProvider.getTokenRegion(model, new TextRegion(2, 1));
    assertEquals(1, tokenRegion.getOffset());
    assertEquals(3, tokenRegion.getLength());
}

Example 25 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-core by eclipse.

the class TokenRegionProviderTest method testTokenMerge.

@Test
public void testTokenMerge() throws Exception {
    String model = "  ";
    ITextRegion tokenRegion = tokenRegionProvider.getTokenRegion(model, new TextRegion(1, 0));
    assertEquals(0, tokenRegion.getOffset());
    assertEquals(2, tokenRegion.getLength());
}