src/antlr/CharBuffer.hpp

#ifndef INC_CharBuffer_hpp__
#define INC_CharBuffer_hpp__

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

#include <istream>

#include <antlr/config.hpp>
#include <antlr/InputBuffer.hpp>

#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
namespace antlr {
#endif

/**A Stream of characters fed to the lexer from a InputStream that can
 * be rewound via mark()/rewind() methods.
 * <p>
 * A dynamic array is used to buffer up all the input characters.  Normally,
 * "k" characters are stored in the buffer.  More characters may be stored
 * during guess mode (testing syntactic predicate), or when LT(i>k) is
 * referenced.
 * Consumption of characters is deferred.  In other words, reading the next
 * character is not done by consume(), but deferred until needed by LA or LT.
 * <p>
 *
 * @see antlr.CharQueue
 */

class ANTLR_API CharBuffer : public InputBuffer {
public:
        /// Create a character buffer
        CharBuffer( ANTLR_USE_NAMESPACE(std)istream& input );
        /// Get the next character from the stream
        int getChar();

protected:
        // character source
        ANTLR_USE_NAMESPACE(std)istream& input;

private:
        // NOTE: Unimplemented
        CharBuffer(const CharBuffer& other);
        CharBuffer& operator=(const CharBuffer& other);
};

#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
}
#endif

#endif //INC_CharBuffer_hpp__
Revision:	770
Committed:	Fri Dec 2 15:38:03 2005 UTC (19 years, 10 months ago) by tim
File size:	1440 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	#ifndef INC_CharBuffer_hpp__
2			#define INC_CharBuffer_hpp__
3
4			/* ANTLR Translator Generator
5			* Project led by Terence Parr at http://www.jGuru.com
6			* Software rights: http://www.antlr.org/license.html
7			*
8			* $Id: CharBuffer.hpp,v 1.1 2005-12-02 15:38:02 tim Exp $
9			*/
10
11			#include <istream>
12
13			#include <antlr/config.hpp>
14			#include <antlr/InputBuffer.hpp>
15
16			#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
17			namespace antlr {
18			#endif
19
20			/**A Stream of characters fed to the lexer from a InputStream that can
21			* be rewound via mark()/rewind() methods.
22			* <p>
23			* A dynamic array is used to buffer up all the input characters. Normally,
24			* "k" characters are stored in the buffer. More characters may be stored
25			* during guess mode (testing syntactic predicate), or when LT(i>k) is
26			* referenced.
27			* Consumption of characters is deferred. In other words, reading the next
28			* character is not done by consume(), but deferred until needed by LA or LT.
29			* <p>
30			*
31			* @see antlr.CharQueue
32			*/
33
34			class ANTLR_API CharBuffer : public InputBuffer {
35			public:
36			/// Create a character buffer
37			CharBuffer( ANTLR_USE_NAMESPACE(std)istream& input );
38			/// Get the next character from the stream
39			int getChar();
40
41			protected:
42			// character source
43			ANTLR_USE_NAMESPACE(std)istream& input;
44
45			private:
46			// NOTE: Unimplemented
47			CharBuffer(const CharBuffer& other);
48			CharBuffer& operator=(const CharBuffer& other);
49			};
50
51			#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
52			}
53			#endif
54
55			#endif //INC_CharBuffer_hpp__