Examples with Parser org.antlr.v4.runtime.Parser used on opensource projects

Example 16 with Parser

use of org.antlr.v4.runtime.Parser in project antlr4 by antlr.

the class TestParseTreeMatcher method checkPatternMatch.

public ParseTreeMatch checkPatternMatch(String grammar, String startRule, String input, String pattern, String grammarName, boolean invertMatch) throws Exception {
    String grammarFileName = grammarName + ".g4";
    String parserName = grammarName + "Parser";
    String lexerName = grammarName + "Lexer";
    boolean ok = rawGenerateAndBuildRecognizer(grammarFileName, grammar, parserName, lexerName, false);
    assertTrue(ok);
    ParseTree result = execParser(startRule, input, parserName, lexerName);
    ParseTreePattern p = getPattern(grammarName, pattern, startRule);
    ParseTreeMatch match = p.match(result);
    boolean matched = match.succeeded();
    if (invertMatch)
        assertFalse(matched);
    else
        assertTrue(matched);
    return match;
}

Example 17 with Parser

use of org.antlr.v4.runtime.Parser in project antlr4 by antlr.

the class TestCompositeGrammars method testImportFileLocationInSubdir.

@Test
public void testImportFileLocationInSubdir() throws Exception {
    String slave = "parser grammar S;\n" + "a : B {System.out.println(\"S.a\");} ;\n";
    BaseRuntimeTest.mkdir(tmpdir);
    String subdir = tmpdir + "/sub";
    BaseRuntimeTest.mkdir(subdir);
    writeFile(subdir, "S.g4", slave);
    String master = "grammar M;\n" + "import S;\n" + "s : a ;\n" + // defines B from inherited token space
    "B : 'b' ;" + "WS : (' '|'\\n') -> skip ;\n";
    writeFile(tmpdir, "M.g4", master);
    ErrorQueue equeue = BaseRuntimeTest.antlrOnString(tmpdir, "Java", "M.g4", false, "-lib", subdir);
    assertEquals(0, equeue.size());
}

Example 18 with Parser

use of org.antlr.v4.runtime.Parser in project antlr4 by antlr.

the class TestCompositeGrammars method testNestedComposite.

@Test
public void testNestedComposite() throws Exception {
    // Wasn't compiling. http://www.antlr.org/jira/browse/ANTLR-438
    ErrorQueue equeue = new ErrorQueue();
    String gstr = "lexer grammar L;\n" + "T1: '1';\n" + "T2: '2';\n" + "T3: '3';\n" + "T4: '4';\n";
    BaseRuntimeTest.mkdir(tmpdir);
    writeFile(tmpdir, "L.g4", gstr);
    gstr = "parser grammar G1;\n" + "s: a | b;\n" + "a: T1;\n" + "b: T2;\n";
    BaseRuntimeTest.mkdir(tmpdir);
    writeFile(tmpdir, "G1.g4", gstr);
    gstr = "parser grammar G2;\n" + "import G1;\n" + "a: T3;\n";
    BaseRuntimeTest.mkdir(tmpdir);
    writeFile(tmpdir, "G2.g4", gstr);
    String G3str = "grammar G3;\n" + "import G2;\n" + "b: T4;\n";
    BaseRuntimeTest.mkdir(tmpdir);
    writeFile(tmpdir, "G3.g4", G3str);
    Grammar g = new Grammar(tmpdir + "/G3.g4", G3str, equeue);
    String expectedTokenIDToTypeMap = "{EOF=-1, T4=1, T3=2}";
    String expectedStringLiteralToTypeMap = "{}";
    String expectedTypeToTokenList = "[T4, T3]";
    assertEquals(expectedTokenIDToTypeMap, g.tokenNameToTypeMap.toString());
    assertEquals(expectedStringLiteralToTypeMap, g.stringLiteralToTypeMap.toString());
    assertEquals(expectedTypeToTokenList, realElements(g.typeToTokenList).toString());
    assertEquals("unexpected errors: " + equeue, 0, equeue.errors.size());
    boolean ok = rawGenerateAndBuildRecognizer("G3.g4", G3str, "G3Parser", null);
    // should be ok
    boolean expecting = true;
    assertEquals(expecting, ok);
}

Example 19 with Parser

use of org.antlr.v4.runtime.Parser in project antlr4 by antlr.

the class TestCompositeGrammars method testErrorInImportedGetsRightFilename.

@Test
public void testErrorInImportedGetsRightFilename() throws Exception {
    String slave = "parser grammar S;\n" + "a : 'a' | c;\n";
    BaseRuntimeTest.mkdir(tmpdir);
    writeFile(tmpdir, "S.g4", slave);
    String master = "grammar M;\n" + "import S;\n";
    writeFile(tmpdir, "M.g4", master);
    ErrorQueue equeue = BaseRuntimeTest.antlrOnString(tmpdir, "Java", "M.g4", false, "-lib", tmpdir);
    ANTLRMessage msg = equeue.errors.get(0);
    assertEquals(ErrorType.UNDEFINED_RULE_REF, msg.getErrorType());
    assertEquals("c", msg.getArgs()[0]);
    assertEquals(2, msg.line);
    assertEquals(10, msg.charPosition);
    assertEquals("S.g4", new File(msg.fileName).getName());
}

Example 20 with Parser

use of org.antlr.v4.runtime.Parser in project antlr4 by antlr.

the class TestCompositeGrammars method testOutputDirShouldNotEffectImports.

@Test
public void testOutputDirShouldNotEffectImports() throws Exception {
    String slave = "parser grammar S;\n" + "a : B {System.out.println(\"S.a\");} ;\n";
    BaseRuntimeTest.mkdir(tmpdir);
    String subdir = tmpdir + "/sub";
    BaseRuntimeTest.mkdir(subdir);
    writeFile(subdir, "S.g4", slave);
    String master = "grammar M;\n" + "import S;\n" + "s : a ;\n" + // defines B from inherited token space
    "B : 'b' ;" + "WS : (' '|'\\n') -> skip ;\n";
    writeFile(tmpdir, "M.g4", master);
    String outdir = tmpdir + "/out";
    BaseRuntimeTest.mkdir(outdir);
    ErrorQueue equeue = BaseRuntimeTest.antlrOnString(tmpdir, "Java", "M.g4", false, "-o", outdir, "-lib", subdir);
    assertEquals(0, equeue.size());
}