1 /* 2 * This file is part of flex. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * Neither the name of the University nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE. 22 */ 23 24 %{ 25 26 #include "config.h" 27 #include <fstream> 28 29 %} 30 31 %option 8bit outfile="scanner.cpp" prefix="test" 32 %option nounput nomain 33 %option warn c++ 34 35 36 %% 37 38 . { } 39 40 %% 41 42 #define MAX_FILES 10 43 44 char *files[MAX_FILES] = { 0 }; 45 int filecounter = 0; 46 yywrap()47int testFlexLexer::yywrap() 48 { 49 if (filecounter-- > 0) { 50 std::cout << "NOW WRAPPING TO READ " << files[filecounter] << std::endl; 51 std::ifstream *ifs = new std::ifstream(files[filecounter]); 52 switch_streams(ifs); 53 return 0; 54 } 55 return 1; 56 } 57 58 int main(int argc,char * argv[])59main (int argc, char *argv[]) 60 { 61 for (int i = 1; i < argc && i <= MAX_FILES; i++) { 62 files[i-1] = argv[i]; 63 filecounter++; 64 } 65 testFlexLexer* f = new testFlexLexer; 66 f->yywrap(); 67 f->yylex(); 68 std::cout << "TEST RETURNING OK." << std::endl; 69 return 0; 70 } 71