You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
109 lines
2.9 KiB
109 lines
2.9 KiB
/* 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.h"
|
|
#include "antlr/CommonToken.h"
|
|
|
|
#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
|
|
|