Package net.sourceforge.chaperon.model.symbol

Examples of net.sourceforge.chaperon.model.symbol.SymbolSet

52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
  public Automaton(Grammar grammar, Log log)
  {
    this.grammar = grammar;
    this.log = log;

    SymbolSet symbols = grammar.getSymbols();

    tsymbols = symbols.getTerminals();
    ntsymbols = symbols.getNonterminals();

    // C = closure( [S'=^S] )
    addState(getStartState());

    State I;
    State J;
    int index;
    SymbolSet nextterminals;
    SymbolSet nextnonterminals;

    for (int i = 0; i<getStateCount(); i++)
    {
      I = getState(i);

      // J = goto(I,X) add to C, for all nonterminal and terminal symbols X
      // for the non terminal symbols
      nextnonterminals = I.getNextNonterminals();
      for (int j = 0; j<nextnonterminals.getSymbolCount(); j++)
      {
        J = I.jump(nextnonterminals.getSymbol(j));

        if (!J.isEmpty())
        {
          index = indexOf(J);
          if (index<0)  // if C doesn't contain J
          {
            index = addState(J);

            // stores the transition for this symbol
            I.addShiftAction(nextnonterminals.getSymbol(j), J);
          }
          else
            I.addShiftAction(nextnonterminals.getSymbol(j), getState(index));
        }
      }

      // and for the terminal symbls
      nextterminals = I.getNextTerminals();
View Full Code Here
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
  public void testFollowSet()
  {
    FirstSetCollection firstsets = new FirstSetCollection(grammar);  /*, new ConsoleLogger());*/
    FollowSetCollection followsets = new FollowSetCollection(grammar, firstsets);

    SymbolSet result = new SymbolSet();
    result.addSymbol(bclose);
    result.addSymbol(eof);
    assertEquals("Test if sets are equal", result, followsets.getFollowSet(E));
    assertEquals("Test if sets are equal", result, followsets.getFollowSet(Eprime));

    result = new SymbolSet();
    result.addSymbol(plus);
    result.addSymbol(bclose);
    result.addSymbol(eof);
    assertEquals("Test if sets are equal", result, followsets.getFollowSet(T));
    assertEquals("Test if sets are equal", result, followsets.getFollowSet(Tprime));

    result = new SymbolSet();
    result.addSymbol(mult);
    result.addSymbol(plus);
    result.addSymbol(bclose);
    result.addSymbol(eof);
    assertEquals("Test if sets are equal", result, followsets.getFollowSet(F));
  }
View Full Code Here
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
    }
  }

  public void testAddSymbol()
  {
    SymbolSet set = new SymbolSet();

    assertEquals("Test if set is empty", 0, set.getSymbolCount());
    assertEquals("Test if set is empty", true, set.isEmpty());

    set.addSymbol(a);

    assertEquals("Test if set is not empty", 1, set.getSymbolCount());
    assertEquals("Test if set is not empty", false, set.isEmpty());

    assertEquals("Test if symbols are equal", a, set.getSymbol(0));

    set.addSymbol(a);
    set.addSymbol(A);
    set.addSymbol(b);
    set.addSymbol(B);
    set.addSymbol(c);
    set.addSymbol(C);

    assertEquals("Test if set is not empty", 6, set.getSymbolCount());
    assertEquals("Test if set is not empty", false, set.isEmpty());

    assertEquals("Test if symbols are equal", a, set.getSymbol(0));
    assertEquals("Test if symbols are equal", B, set.getSymbol(3));
    assertEquals("Test if symbols are equal", C, set.getSymbol(5));

    assertEquals("Test if indices are equal", 0, set.indexOf(a));
    assertEquals("Test if indices are equal", 4, set.indexOf(c));

    SymbolSet set2 = new SymbolSet();

    set2.addSymbol(a);
    set2.addSymbol(a);
    set2.addSymbol(A);
    set2.addSymbol(b);

    assertNotEquals("Test if sets are not equal", set, set2);

    set2.addSymbol(B);
    set2.addSymbol(c);
    set2.addSymbol(C);

    assertEquals("Test if sets are equal", set, set2);

    SymbolSet set3 = new SymbolSet();

    set3.addSymbol(a);
    set3.addSymbol(A);
    set3.addSymbol(b);
    set3.addSymbol(B);
    set3.addSymbol(c);
    set3.addSymbol(C);
    set3.addSymbol(a);

    assertEquals("Test if sets are equal", set, set3);
  }
View Full Code Here
328
329
330
331
332
333
334
335
336
337
338
   *
   * @return Set of symbols
   */
  public SymbolSet getSymbols()
  {
    SymbolSet set = new SymbolSet();

    for (int i = 0; i < getProductionCount(); i++)
      set.addSymbol(getProduction(i).getSymbols());
    return set;
  }
View Full Code Here
393
394
395
396
397
398
399
400
401
402
403
404
405
      violations.addViolation("No productions are defined", location);

    for (Enumeration e = productions.elements(); e.hasMoreElements() ;)
      violations.addViolations(((Production)e.nextElement()).validate());

    SymbolSet ntsymbols = getSymbols().getNonterminals();
    for (int i = 0; i < ntsymbols.getSymbolCount(); i++)
      if (!contains(ntsymbols.getSymbol(i)))
        violations.addViolation("Nonterminal symbol \"" + ntsymbols.getSymbol(i) + "\"" +
                                "is not defined through a production", location);

    return violations;
  }
View Full Code Here
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
    assertEquals("Test if sets are equal", set, set3);
  }

  public void testEquals()
  {
    SymbolSet set = new SymbolSet();
    set.addSymbol(A);
    set.addSymbol(B);
    set.addSymbol(C);

    SymbolSet set2 = new SymbolSet();
    set2.addSymbol(A);
    set2.addSymbol(C);
    set2.addSymbol(B);

    assertEquals("Test if symbols are equal", set, set2);

    set2 = new SymbolSet();
    set2.addSymbol(A);
    set2.addSymbol(B);

    assertNotEquals("Test if sets are not equal", set, set2);
  }
View Full Code Here
368
369
370
371
372
373
374
375
376
377
378
379
   *
   * @return Set of symbols, which were used.
   */
  public SymbolSet getSymbols()
  {
    SymbolSet set = new SymbolSet();

    for (int i = 0; i<getProductionCount(); i++)
      set.addSymbol(getProduction(i).getSymbols());

    return set;
  }
View Full Code Here
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
      violations.addViolation("No productions are defined", location);

    for (Enumeration e = productions.elements(); e.hasMoreElements();)
      violations.addViolations(((Production)e.nextElement()).validate());

    SymbolSet ntsymbols = getSymbols().getNonterminals();

    for (int i = 0; i<ntsymbols.getSymbolCount(); i++)
    {
      if (!contains(ntsymbols.getSymbol(i)))
        violations.addViolation("Nonterminal symbol \""+ntsymbols.getSymbol(i)+"\""+
                                "is not defined through a production", location);

      if (ntsymbols.getSymbol(i).getName().equals("error"))
        violations.addViolation("Nonterminal symbol with name \"error\" is not allowed", location);
    }

    SymbolSet tsymbols = getSymbols().getTerminals();

    for (int i = 0; i<tsymbols.getSymbolCount(); i++)
    {
      if ((!(tsymbols.getSymbol(i) instanceof Error)) &&
          (tsymbols.getSymbol(i).getName().equals("error")))
        violations.addViolation("Terminal symbol with name \"error\" is not allowed", location);
    }

    return violations;
  }
View Full Code Here
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
  {
    StringBuffer buffer = new StringBuffer();

    buffer.append("Terminal symbols:\n");

    SymbolSet tsymbols = getSymbols().getTerminals();

    for (int i = 0; i<tsymbols.getSymbolCount(); i++)
    {
      buffer.append(String.valueOf(i));
      buffer.append(".Terminal: ");
      buffer.append(tsymbols.getSymbol(i));
      buffer.append(" Priority=");
      buffer.append(String.valueOf(getPriority((Terminal)tsymbols.getSymbol(i))));
      buffer.append(" Associativity=");
      buffer.append(String.valueOf(getAssociativity((Terminal)tsymbols.getSymbol(i))));
      buffer.append("\n");
    }

    buffer.append("Produktions:\n");
    for (int i = 0; i<getProductionCount(); i++)
View Full Code Here
147
148
149
150
151
152
153
154
155
156
157
158
159
160
   *
   * @return Set of symbols.
   */
  public SymbolSet getSymbols()
  {
    SymbolSet set = new SymbolSet();

    set.addSymbol(ntsymbol);
    set.addSymbol(definition);
    if (precedence!=null)
      set.addSymbol(precedence);

    return set;
  }
View Full Code Here
TOP

Related Classes of net.sourceforge.chaperon.model.symbol.SymbolSet

  • net.sourceforge.chaperon.build.Automaton
  • net.sourceforge.chaperon.build.FirstSetCollection
  • net.sourceforge.chaperon.build.FollowSetCollection
  • net.sourceforge.chaperon.build.ItemSet
  • net.sourceforge.chaperon.build.ItemSetCollection
  • net.sourceforge.chaperon.build.ParserAutomatonBuilder
  • net.sourceforge.chaperon.build.State
  • net.sourceforge.chaperon.model.grammar.Grammar
  • net.sourceforge.chaperon.model.grammar.Production
  • net.sourceforge.chaperon.test.FirstSetTestCase
    • 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.