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Peinthor Rene
57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
#ifndef INC_CharBuffer_hpp__
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#define INC_CharBuffer_hpp__
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/* ANTLR Translator Generator
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* Project led by Terence Parr at http://www.jGuru.com
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* Software rights: http://www.antlr.org/license.html
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*
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* $Id: //depot/code/org.antlr/release/antlr-2.7.7/lib/cpp/antlr/CharBuffer.hpp#2 $
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*/
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#include <antlr/config.hpp>
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#include <istream>
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#include <antlr/InputBuffer.hpp>
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#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
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namespace antlr {
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#endif
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/**A Stream of characters fed to the lexer from a InputStream that can
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* be rewound via mark()/rewind() methods.
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* <p>
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* A dynamic array is used to buffer up all the input characters. Normally,
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* "k" characters are stored in the buffer. More characters may be stored
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* during guess mode (testing syntactic predicate), or when LT(i>k) is
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* referenced.
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* Consumption of characters is deferred. In other words, reading the next
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* character is not done by consume(), but deferred until needed by LA or LT.
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* <p>
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*
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* @see antlr.CharQueue
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*/
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class ANTLR_API CharBuffer : public InputBuffer {
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public:
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/// Create a character buffer
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CharBuffer( ANTLR_USE_NAMESPACE(std)istream& input );
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/// Get the next character from the stream
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int getChar();
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protected:
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// character source
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ANTLR_USE_NAMESPACE(std)istream& input;
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private:
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// NOTE: Unimplemented
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CharBuffer(const CharBuffer& other);
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CharBuffer& operator=(const CharBuffer& other);
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};
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#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
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}
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#endif
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#endif //INC_CharBuffer_hpp__
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