Examples with EOF org.antlr.v4.runtime.Recognizer.EOF used on opensource projects

Example 81 with EOF

use of org.antlr.v4.runtime.Recognizer.EOF in project antlr4 by antlr.

the class ParserATNSimulator method getTokenName.

public String getTokenName(int t) {
    if (t == Token.EOF) {
        return "EOF";
    }
    Vocabulary vocabulary = parser != null ? parser.getVocabulary() : VocabularyImpl.EMPTY_VOCABULARY;
    String displayName = vocabulary.getDisplayName(t);
    if (displayName.equals(Integer.toString(t))) {
        return displayName;
    }
    return displayName + "<" + t + ">";
}

Example 82 with EOF

use of org.antlr.v4.runtime.Recognizer.EOF in project antlr4 by antlr.

the class LexerATNFactory method tokenRef.

@Override
public Handle tokenRef(TerminalAST node) {
    // Ref to EOF in lexer yields char transition on -1
    if (node.getText().equals("EOF")) {
        ATNState left = newState(node);
        ATNState right = newState(node);
        left.addTransition(new AtomTransition(right, IntStream.EOF));
        return new Handle(left, right);
    }
    return _ruleRef(node);
}

Example 83 with EOF

use of org.antlr.v4.runtime.Recognizer.EOF in project antlr4 by antlr.

the class TestSymbolIssues method testStringLiteralRedefs.

@Test
public void testStringLiteralRedefs() throws Exception {
    String grammar = "lexer grammar L;\n" + "A : 'a' ;\n" + "mode X;\n" + "B : 'a' ;\n" + "mode Y;\n" + "C : 'a' ;\n";
    LexerGrammar g = new LexerGrammar(grammar);
    String expectedTokenIDToTypeMap = "{EOF=-1, A=1, B=2, C=3}";
    String expectedStringLiteralToTypeMap = "{}";
    String expectedTypeToTokenList = "[A, B, C]";
    assertEquals(expectedTokenIDToTypeMap, g.tokenNameToTypeMap.toString());
    assertEquals(expectedStringLiteralToTypeMap, g.stringLiteralToTypeMap.toString());
    assertEquals(expectedTypeToTokenList, realElements(g.typeToTokenList).toString());
}

Example 84 with EOF

use of org.antlr.v4.runtime.Recognizer.EOF in project antlr4 by antlr.

the class TestParserInterpreter method testEmptyInputWithCallsAfter.

@Test
public void testEmptyInputWithCallsAfter() throws Exception {
    LexerGrammar lg = new LexerGrammar("lexer grammar L;\n" + "A : 'a' ;\n");
    Grammar g = new Grammar("parser grammar T;\n" + "s : x y ;\n" + "x : EOF ;\n" + "y : z ;\n" + "z : ;", lg);
    ParseTree t = testInterp(lg, g, "s", "", "(s (x <EOF>) (y z))");
    // s
    assertEquals("0..0", t.getSourceInterval().toString());
    // x
    assertEquals("0..0", t.getChild(0).getSourceInterval().toString());
// unspecified		assertEquals("0..-1", t.getChild(1).getSourceInterval().toString()); // x
}

Example 85 with EOF

use of org.antlr.v4.runtime.Recognizer.EOF in project antlr4 by antlr.

the class TestParserInterpreter method testEOFInChild.

@Test
public void testEOFInChild() throws Exception {
    LexerGrammar lg = new LexerGrammar("lexer grammar L;\n" + "A : 'a' ;\n");
    Grammar g = new Grammar("parser grammar T;\n" + "s : x ;\n" + "x : A EOF ;", lg);
    ParseTree t = testInterp(lg, g, "s", "a", "(s (x a <EOF>))");
    assertEquals("0..1", t.getSourceInterval().toString());
    assertEquals("0..1", t.getChild(0).getSourceInterval().toString());
}