1/* 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: //depot/code/org.antlr/release/antlr-2.7.7/lib/cpp/src/CharScanner.cpp#2 $ 6 */ 7 8#include <stdio.h> 9#include <string> 10 11#include "antlr/CharScanner.hpp" 12#include "antlr/CommonToken.hpp" 13 14#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE 15namespace antlr { 16#endif 17ANTLR_C_USING(exit) 18 19CharScanner::CharScanner(InputBuffer& cb, bool case_sensitive ) 20 : saveConsumedInput(true) //, caseSensitiveLiterals(true) 21 , caseSensitive(case_sensitive) 22 , literals(CharScannerLiteralsLess(this)) 23 , inputState(new LexerInputState(cb)) 24 , commitToPath(false) 25 , tabsize(8) 26 , traceDepth(0) 27{ 28 setTokenObjectFactory(&CommonToken::factory); 29} 30 31CharScanner::CharScanner(InputBuffer* cb, bool case_sensitive ) 32 : saveConsumedInput(true) //, caseSensitiveLiterals(true) 33 , caseSensitive(case_sensitive) 34 , literals(CharScannerLiteralsLess(this)) 35 , inputState(new LexerInputState(cb)) 36 , commitToPath(false) 37 , tabsize(8) 38 , traceDepth(0) 39{ 40 setTokenObjectFactory(&CommonToken::factory); 41} 42 43CharScanner::CharScanner( const LexerSharedInputState& state, bool case_sensitive ) 44 : saveConsumedInput(true) //, caseSensitiveLiterals(true) 45 , caseSensitive(case_sensitive) 46 , literals(CharScannerLiteralsLess(this)) 47 , inputState(state) 48 , commitToPath(false) 49 , tabsize(8) 50 , traceDepth(0) 51{ 52 setTokenObjectFactory(&CommonToken::factory); 53} 54 55/** Report exception errors caught in nextToken() */ 56void CharScanner::reportError(const RecognitionException& ex) 57{ 58 fprintf(stderr, "%s", (ex.toString() + "\n").c_str()); 59} 60 61/** Parser error-reporting function can be overridden in subclass */ 62void CharScanner::reportError(const ANTLR_USE_NAMESPACE(std)string& s) 63{ 64 if ( getFilename()=="" ) 65 fprintf(stderr, "%s", ("error: " + s + "\n").c_str()); 66 else 67 fprintf(stderr, "%s", (getFilename() + ": error: " + s + "\n").c_str()); 68} 69 70/** Parser warning-reporting function can be overridden in subclass */ 71void CharScanner::reportWarning(const ANTLR_USE_NAMESPACE(std)string& s) 72{ 73 if ( getFilename()=="" ) 74 fprintf(stderr, "%s", ("warning: " + s + "\n").c_str()); 75 else 76 fprintf(stderr, "%s", (getFilename() + ": warning: " + s + "\n").c_str()); 77} 78 79void CharScanner::traceIndent() 80{ 81 for( int i = 0; i < traceDepth; i++ ) 82 printf(" "); 83} 84 85void CharScanner::traceIn(const char* rname) 86{ 87 traceDepth++; 88 traceIndent(); 89 printf("> lexer %s; c==%d\n", rname, LA(1)); 90} 91 92void CharScanner::traceOut(const char* rname) 93{ 94 traceIndent(); 95 printf("< lexer %s; c==%d\n", rname, LA(1)); 96 traceDepth--; 97} 98 99#ifndef NO_STATIC_CONSTS 100const int CharScanner::NO_CHAR; 101const int CharScanner::EOF_CHAR; 102#endif 103 104#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE 105} 106#endif 107 108