Package org.antlr.v4.tool

Examples of org.antlr.v4.tool.LexerGrammar

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      "A : 'a' (EOF|'\\n') ;\n");
    checkDeserializationIsStable(lg);
  }

  @Test public void testLexerRange() throws Exception {
    LexerGrammar lg = new LexerGrammar(
      "lexer grammar L;\n"+
      "INT : '0'..'9' ;\n");
    checkDeserializationIsStable(lg);
  }
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      "INT : '0'..'9' ;\n");
    checkDeserializationIsStable(lg);
  }

  @Test public void testLexerLoops() throws Exception {
    LexerGrammar lg = new LexerGrammar(
      "lexer grammar L;\n"+
      "INT : '0'..'9'+ ;\n");
    checkDeserializationIsStable(lg);
  }
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      "INT : '0'..'9'+ ;\n");
    checkDeserializationIsStable(lg);
  }

  @Test public void testLexerNotSet() throws Exception {
    LexerGrammar lg = new LexerGrammar(
      "lexer grammar L;\n"+
      "ID : ~('a'|'b')\n ;");
    checkDeserializationIsStable(lg);
  }
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      "ID : ~('a'|'b')\n ;");
    checkDeserializationIsStable(lg);
  }

  @Test public void testLexerNotSetWithRange() throws Exception {
    LexerGrammar lg = new LexerGrammar(
      "lexer grammar L;\n"+
      "ID : ~('a'|'b'|'e'|'p'..'t')\n ;");
    checkDeserializationIsStable(lg);
  }
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      "ID : ~('a'|'b'|'e'|'p'..'t')\n ;");
    checkDeserializationIsStable(lg);
  }

  @Test public void testLexerNotSetWithRange2() throws Exception {
    LexerGrammar lg = new LexerGrammar(
      "lexer grammar L;\n"+
      "ID : ~('a'|'b') ~('e'|'p'..'t')\n ;");
    checkDeserializationIsStable(lg);
  }
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      "ID : ~('a'|'b') ~('e'|'p'..'t')\n ;");
    checkDeserializationIsStable(lg);
  }

  @Test public void test2ModesInLexer() throws Exception {
    LexerGrammar lg = new LexerGrammar(
      "lexer grammar L;\n"+
      "A : 'a'\n ;\n" +
      "mode M;\n" +
      "B : 'b';\n" +
      "mode M2;\n" +
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  // NOTICE: TOKENS IN LEXER, PARSER MUST BE SAME OR TOKEN TYPE MISMATCH
  // NOTICE: TOKENS IN LEXER, PARSER MUST BE SAME OR TOKEN TYPE MISMATCH

public class TestATNParserPrediction extends BaseTest {
  @Test public void testAorB() throws Exception {
    LexerGrammar lg = new LexerGrammar(
      "lexer grammar L;\n" +
      "A : 'a' ;\n" +
      "B : 'b' ;\n" +
      "C : 'c' ;\n");
    Grammar g = new Grammar(
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    };
    checkDFAConstruction(lg, g, decision, inputs, dfa);
  }

  @Test public void testEmptyInput() throws Exception {
    LexerGrammar lg = new LexerGrammar(
      "lexer grammar L;\n" +
      "A : 'a' ;\n" +
      "B : 'b' ;\n" +
      "C : 'c' ;\n");
    Grammar g = new Grammar(
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    };
    checkDFAConstruction(lg, g, decision, inputs, dfa);
  }

  @Test public void testPEGAchillesHeel() throws Exception {
    LexerGrammar lg = new LexerGrammar(
      "lexer grammar L;\n" +
      "A : 'a' ;\n" +
      "B : 'b' ;\n" +
      "C : 'c' ;\n");
    Grammar g = new Grammar(
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    };
    checkDFAConstruction(lg, g, 0, inputs, dfa);
  }

  @Test public void testRuleRefxory() throws Exception {
    LexerGrammar lg = new LexerGrammar(
      "lexer grammar L;\n" +
      "A : 'a' ;\n" +
      "B : 'b' ;\n" +
      "C : 'c' ;\n");
    Grammar g = new Grammar(
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Related Classes of org.antlr.v4.tool.LexerGrammar

  • org.antlr.runtime.ANTLRFileStream
  • org.antlr.runtime.ANTLRStringStream
  • org.antlr.runtime.CharStream
  • org.antlr.runtime.CommonToken
  • org.antlr.runtime.Token
  • org.antlr.runtime.tree.CommonTree
  • org.antlr.runtime.tree.CommonTreeNodeStream
  • org.antlr.runtime.tree.Tree
  • org.antlr.runtime.tree.TreeVisitor
  • org.antlr.runtime.tree.TreeVisitorAction
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