Package org.antlr.runtime.tree

Examples of org.antlr.runtime.tree.ParseTree

316
317
318
319
320
321
322
323
324
325
326
            tokens.setTokenTypeChannel(lexer.getTokenType(tokenName), Token.HIDDEN_CHANNEL);
        }

        Interpreter parseEngine = new CustomInterpreter(parser, tokens);

        ParseTree t = null;
        try {
            if(ATEToken.isLexerName(startSymbol)) {
                t = lexEngine.parse(startSymbol);
            } else {
                t = parseEngine.parse(startSymbol);
View Full Code Here
123
124
125
126
127
128
129
130
    if ( parser.getRule(startRule)==null ) {
      System.err.println("Rule "+startRule+" does not exist in "+grammarFileName);
      return;
    }
    Interpreter parseEngine = new Interpreter(parser, tokens);
    ParseTree t = parseEngine.parse(startRule);
    System.out.println(t.toStringTree());
  }
View Full Code Here
44
45
46
47
48
49
50
51
  Stack callStack = new Stack();
  List hiddenTokens = new ArrayList();
  int backtracking = 0;

  public ParseTreeBuilder(String grammarName) {
    ParseTree root = create("<grammar "+grammarName+">");
    callStack.push(root);
  }
View Full Code Here
56
57
58
59
60
61
62
  /**  What kind of node to create.  You might want to override
   *   so I factored out creation here.
   */
  public ParseTree create(Object payload) {
    return new ParseTree(payload);
  }
View Full Code Here
69
70
71
72
73
74
75
76
77
78
  public void enterDecision(int d) { backtracking++; }
  public void exitDecision(int i) { backtracking--; }

  public void enterRule(String filename, String ruleName) {
    if ( backtracking>0 ) return;
    ParseTree parentRuleNode = (ParseTree)callStack.peek();
    ParseTree ruleNode = create(ruleName);
    parentRuleNode.addChild(ruleNode);
    callStack.push(ruleNode);
  }
View Full Code Here
77
78
79
80
81
82
83
84
85
86
87
    callStack.push(ruleNode);
  }

  public void exitRule(String filename, String ruleName) {
    if ( backtracking>0 ) return;
    ParseTree ruleNode = (ParseTree)callStack.peek();
    if ( ruleNode.getChildCount()==0 ) {
      ruleNode.addChild(epsilonNode());
    }
    callStack.pop();   
  }
View Full Code Here
86
87
88
89
90
91
92
93
94
95
96
    callStack.pop();   
  }

  public void consumeToken(Token token) {
    if ( backtracking>0 ) return;
    ParseTree ruleNode = (ParseTree)callStack.peek();
    ParseTree elementNode = create(token);
    elementNode.hiddenTokens = this.hiddenTokens;
    this.hiddenTokens = new ArrayList();
    ruleNode.addChild(elementNode);
  }
View Full Code Here
100
101
102
103
104
105
106
107
108
    hiddenTokens.add(token);
  }

  public void recognitionException(RecognitionException e) {
    if ( backtracking>0 ) return;
    ParseTree ruleNode = (ParseTree)callStack.peek();
    ParseTree errorNode = create(e);
    ruleNode.addChild(errorNode);
  }
View Full Code Here
67
68
69
70
71
72
73
74
75
76
77
    FilteringTokenStream tokens = new FilteringTokenStream(lexEngine);
    tokens.setTokenTypeChannel(g.getTokenType("WS"), 99);
    //System.out.println("tokens="+tokens.toString());
    Interpreter parseEngine = new Interpreter(pg, tokens);
    ParseTree t = parseEngine.parse("prog");
    String result = t.toStringTree();
    String expecting =
      "(<grammar p> (prog while x { (assign i = (expr 1) ;) (assign y = (expr 3.42) ;) (assign z = (expr y) ;) } <EOF>))";
    assertEquals(expecting, result);
  }
View Full Code Here
102
103
104
105
106
107
108
109
110
111
112
    FilteringTokenStream tokens = new FilteringTokenStream(lexEngine);
    tokens.setTokenTypeChannel(g.getTokenType("WS"), 99);
    //System.out.println("tokens="+tokens.toString());
    Interpreter parseEngine = new Interpreter(pg, tokens);
    ParseTree t = parseEngine.parse("prog");
    String result = t.toStringTree();
    String expecting =
      "(<grammar p> (prog while x { (assign i = (expr 1) MismatchedTokenException(6!=10))))";
    assertEquals(expecting, result);
  }
View Full Code Here
TOP

Related Classes of org.antlr.runtime.tree.ParseTree

  • org.antlr.runtime.debug.ParseTreeBuilder
  • org.antlr.runtime.Token
  • org.antlr.test.TestInterpretedParsing
  • org.antlr.tool.Interp
  • org.antlr.works.interpreter.InterpreterTab
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.