1  /* ANTLR Translator Generator
 2   * Project led by Terence Parr at http://www.jGuru.com
 3   * Software rights: http://www.antlr.org/license.html
 4   *
 5   * $Id: //depot/code/org.antlr/release/antlr-2.7.7/lib/cpp/src/LLkParser.cpp#2 $
 6   */
 7  
 8  #include "antlr/LLkParser.hpp"
 9  #include <stdio.h>
10  
11  #ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
12  namespace antlr {
13  #endif
14  
15  ANTLR_USING_NAMESPACE(std)
16  
17  /**An LL(k) parser.
18   *
19   * @see antlr.Token
20   * @see antlr.TokenBuffer
21   * @see antlr.LL1Parser
22   */
23  
24  //	LLkParser(int k_);
25  
26  LLkParser::LLkParser(const ParserSharedInputState& state, int k_)
27  : Parser(state), k(k_)
28  {
29  }
30  
31  LLkParser::LLkParser(TokenBuffer& tokenBuf, int k_)
32  : Parser(tokenBuf), k(k_)
33  {
34  }
35  
36  LLkParser::LLkParser(TokenStream& lexer, int k_)
37  : Parser(new TokenBuffer(lexer)), k(k_)
38  {
39  }
40  
41  void LLkParser::trace(const char* ee, const char* rname)
42  {
43  	traceIndent();
44  
45  	printf("%s", ((string)ee + rname + ((inputState->guessing>0)?"; [guessing]":"; ")).c_str());
46  
47  	for (int i = 1; i <= k; i++)
48  	{
49  		if (i != 1) {
50  			printf(", ");
51  		}
52  		printf("LA(%d)==", i);
53  
54  		string temp;
55  
56  		try {
57  			temp = LT(i)->getText().c_str();
58  		}
59  		catch( ANTLRException& ae )
60  		{
61  			temp = "[error: ";
62  			temp += ae.toString();
63  			temp += ']';
64  		}
65  		printf("%s", temp.c_str());
66  	}
67  
68  	printf("\n");;
69  }
70  
71  void LLkParser::traceIn(const char* rname)
72  {
73  	traceDepth++;
74  	trace("> ",rname);
75  }
76  
77  void LLkParser::traceOut(const char* rname)
78  {
79  	trace("< ",rname);
80  	traceDepth--;
81  }
82  
83  #ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
84  }
85  #endif