CharScanner.cpp

/* ANTLR Translator Generator
 * Project led by Terence Parr at http://www.jGuru.com
 * Software rights: http://www.antlr.org/license.html
 *
 * $Id$
 */
 
#include <iostream>
 
#include "antlr/CharScanner.hpp"
#include "antlr/CommonToken.hpp"
 
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
namespace antlr {
#endif
ANTLR_C_USING(exit)
 
CharScanner::CharScanner(InputBuffer& cb, bool case_sensitive )
        : saveConsumedInput(true) //, caseSensitiveLiterals(true)
        , caseSensitive(case_sensitive)
        , literals(CharScannerLiteralsLess(this))
        , inputState(new LexerInputState(cb))
        , commitToPath(false)
        , tabsize(8)
        , traceDepth(0)
{
        setTokenObjectFactory(&CommonToken::factory);
}
 
CharScanner::CharScanner(InputBuffer* cb, bool case_sensitive )
        : saveConsumedInput(true) //, caseSensitiveLiterals(true)
        , caseSensitive(case_sensitive)
        , literals(CharScannerLiteralsLess(this))
        , inputState(new LexerInputState(cb))
        , commitToPath(false)
        , tabsize(8)
        , traceDepth(0)
{
        setTokenObjectFactory(&CommonToken::factory);
}
 
CharScanner::CharScanner( const LexerSharedInputState& state, bool case_sensitive )
        : saveConsumedInput(true) //, caseSensitiveLiterals(true)
        , caseSensitive(case_sensitive)
        , literals(CharScannerLiteralsLess(this))
        , inputState(state)
        , commitToPath(false)
        , tabsize(8)
        , traceDepth(0)
{
        setTokenObjectFactory(&CommonToken::factory);
}
 
/** Report exception errors caught in nextToken() */
void CharScanner::reportError(const RecognitionException& ex)
{
        ANTLR_USE_NAMESPACE(std)cerr << ex.toString().c_str() << ANTLR_USE_NAMESPACE(std)endl;
}
 
/** Parser error-reporting function can be overridden in subclass */
void CharScanner::reportError(const ANTLR_USE_NAMESPACE(std)string& s)
{
        if (getFilename() == "")
                ANTLR_USE_NAMESPACE(std)cerr << "error: " << s.c_str() << ANTLR_USE_NAMESPACE(std)endl;
        else
                ANTLR_USE_NAMESPACE(std)cerr << getFilename().c_str() << ": error: " << s.c_str() << ANTLR_USE_NAMESPACE(std)endl;
}
 
/** Parser warning-reporting function can be overridden in subclass */
void CharScanner::reportWarning(const ANTLR_USE_NAMESPACE(std)string& s)
{
        if (getFilename() == "")
                ANTLR_USE_NAMESPACE(std)cerr << "warning: " << s.c_str() << ANTLR_USE_NAMESPACE(std)endl;
        else
                ANTLR_USE_NAMESPACE(std)cerr << getFilename().c_str() << ": warning: " << s.c_str() << ANTLR_USE_NAMESPACE(std)endl;
}
 
void CharScanner::traceIndent()
{
        for( int i = 0; i < traceDepth; i++ )
                ANTLR_USE_NAMESPACE(std)cout << " ";
}
 
void CharScanner::traceIn(const char* rname)
{
        traceDepth++;
        traceIndent();
        ANTLR_USE_NAMESPACE(std)cout << "> lexer " << rname
                << "; c==" << LA(1) << ANTLR_USE_NAMESPACE(std)endl;
}
 
void CharScanner::traceOut(const char* rname)
{
        traceIndent();
        ANTLR_USE_NAMESPACE(std)cout << "< lexer " << rname
                << "; c==" << LA(1) << ANTLR_USE_NAMESPACE(std)endl;
        traceDepth--;
}
 
#ifndef NO_STATIC_CONSTS
const int CharScanner::NO_CHAR;
const int CharScanner::EOF_CHAR;
#endif
 
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
}
#endif