src/antlr/LLkParser.cpp

/* ANTLR Translator Generator
 * Project led by Terence Parr at http://www.jGuru.com
 * Software rights: http://www.antlr.org/license.html
 *
 * $Id: LLkParser.cpp,v 1.1 2005-12-02 15:38:02 tim Exp $
 */

#include "antlr/LLkParser.hpp"
#include <iostream>

#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
namespace antlr {
#endif

ANTLR_USING_NAMESPACE(std)

/**An LL(k) parser.
 *
 * @see antlr.Token
 * @see antlr.TokenBuffer
 * @see antlr.LL1Parser
 */

//      LLkParser(int k_);

LLkParser::LLkParser(const ParserSharedInputState& state, int k_)
: Parser(state), k(k_)
{
}

LLkParser::LLkParser(TokenBuffer& tokenBuf, int k_)
: Parser(tokenBuf), k(k_)
{
}

LLkParser::LLkParser(TokenStream& lexer, int k_)
: Parser(new TokenBuffer(lexer)), k(k_)
{
}

void LLkParser::trace(const char* ee, const char* rname)
{
        traceIndent();

        cout << ee << rname << ((inputState->guessing>0)?"; [guessing]":"; ");

        for (int i = 1; i <= k; i++)
        {
                if (i != 1) {
                        cout << ", ";
                }
                cout << "LA(" << i << ")==";

                string temp;

                try {
                        temp = LT(i)->getText().c_str();
                }
                catch( ANTLRException& ae )
                {
                        temp = "[error: ";
                        temp += ae.toString();
                        temp += ']';
                }
                cout << temp;
        }

        cout << endl;
}

void LLkParser::traceIn(const char* rname)
{
        traceDepth++;
        trace("> ",rname);
}

void LLkParser::traceOut(const char* rname)
{
        trace("< ",rname);
        traceDepth--;
}

#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
}
#endif
Revision:	770
Committed:	Fri Dec 2 15:38:03 2005 UTC (19 years, 5 months ago) by tim
File size:	1406 byte(s)
Log Message:	End of the Link --> List Return of the Oject-Oriented replace yacc/lex parser with antlr parser
#	User	Rev	Content
1	tim	770	/* 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: LLkParser.cpp,v 1.1 2005-12-02 15:38:02 tim Exp $
6			*/
7
8			#include "antlr/LLkParser.hpp"
9			#include <iostream>
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			cout << ee << rname << ((inputState->guessing>0)?"; [guessing]":"; ");
46
47			for (int i = 1; i <= k; i++)
48			{
49			if (i != 1) {
50			cout << ", ";
51			}
52			cout << "LA(" << 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			cout << temp;
66			}
67
68			cout << endl;
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