Examples with DefaultTreeListener org.snt.inmemantlr.listener.DefaultTreeListener used on opensource projects

Example 26 with DefaultTreeListener

use of org.snt.inmemantlr.listener.DefaultTreeListener in project inmemantlr by julianthome.

the class TestDoubleParse method testProcessor.

@Test
public void testProcessor() {
    GenericParser gp1 = new GenericParser(sgrammarcontent);
    boolean compile;
    try {
        gp1.compile();
        compile = true;
    } catch (CompilationException e) {
        compile = false;
    }
    assertTrue(compile);
    GenericParser gp2 = new GenericParser(sgrammarcontent);
    try {
        gp2.compile();
        compile = true;
    } catch (CompilationException e) {
        compile = false;
    }
    assertTrue(compile);
    DefaultTreeListener l1 = new DefaultTreeListener();
    DefaultTreeListener l2 = new DefaultTreeListener();
    assertNotNull(l1.toString());
    assertEquals("", l1.toString());
    gp1.setListener(l1);
    gp2.setListener(l2);
    try {
        gp1.parse(s1);
        gp2.parse(s2);
    } catch (IllegalWorkflowException | ParsingException e) {
        e.printStackTrace();
    }
    ParseTree out1 = l1.getParseTree();
    ParseTree out2 = l2.getParseTree();
    assertNotEquals(out1, out2);
}

Example 27 with DefaultTreeListener

use of org.snt.inmemantlr.listener.DefaultTreeListener in project inmemantlr by julianthome.

the class TestSimple method testInterpreter.

@Test
public void testInterpreter() throws IOException {
    try (InputStream sgrammar = getClass().getClassLoader().getResourceAsStream("inmemantlr/Simple.g4")) {
        sgrammarcontent = FileUtils.getStringFromStream(sgrammar);
    }
    GenericParser gp = new GenericParser(sgrammarcontent);
    DefaultTreeListener t = new DefaultTreeListener();
    gp.setListener(t);
    boolean compile;
    try {
        gp.compile();
        compile = true;
    } catch (CompilationException e) {
        compile = false;
    }
    assertTrue(compile);
    // this example shows you how one could use inmemantlr for incremental parsing
    try {
        ParseTree parseTree;
        gp.parse("PRINT a+b");
        parseTree = t.getParseTree();
        LOGGER.debug(parseTree.toDot());
        assertEquals(6, parseTree.getNodes().size());
        gp.parse("PRINT \"test\"");
        parseTree = t.getParseTree();
        LOGGER.debug(parseTree.toDot());
        assertEquals(4, parseTree.getNodes().size());
    } catch (IllegalWorkflowException | ParsingException e) {
        LOGGER.error(e.getMessage(), e);
    }
}

Example 28 with DefaultTreeListener

use of org.snt.inmemantlr.listener.DefaultTreeListener in project inmemantlr by julianthome.

the class TestSimple method testLogic.

@Test
public void testLogic() throws IOException {
    try (InputStream sgrammar = getClass().getClassLoader().getResourceAsStream("inmemantlr/Logic.g4")) {
        sgrammarcontent = FileUtils.getStringFromStream(sgrammar);
    }
    String toParse = "hello";
    GenericParser gp = new GenericParser(sgrammarcontent);
    DefaultTreeListener t = new DefaultTreeListener();
    gp.setListener(t);
    boolean compile;
    try {
        gp.compile();
        compile = true;
    } catch (CompilationException e) {
        compile = false;
        LOGGER.debug(e.getMessage());
    }
    assertTrue(compile);
    try {
        gp.parse(toParse);
    } catch (IllegalWorkflowException | ParsingException e) {
        assert false;
    }
    ParseTree a = t.getParseTree();
    assertEquals(4, a.getNodes().size());
    LOGGER.debug(ParseTreeSerializer.INSTANCE.toDot(a));
}