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/* A scanner file to build "scanner.c". 26 Input language is any text. 27 "#include <filename>" causes a new scanner to be created. 28 */ 29#include <stdio.h> 30#include <stdlib.h> 31#include "config.h" 32 33int error = 0; 34%} 35 36%option 8bit prefix="test" 37%option nounput nomain noyywrap noinput 38%option reentrant 39%option warn 40 41%x GET_FILENAME 42 43%% 44 45<INITIAL>{ 46^"#include"[[:blank:]]+"<" { BEGIN(GET_FILENAME); } 47.|\n { ECHO; } 48} 49 50<GET_FILENAME>{ 51[[:alnum:]_.-]+> { 52 /* recurse */ 53 yyscan_t scanner; 54 FILE * fp; 55 yytext[yyleng-1]='\0'; 56 if((fp=fopen(yytext,"r"))==NULL) { 57 fprintf(stderr,"*** Error: Could not open include file \"%s\".\n", 58 yytext); 59 error = 1; 60 yyterminate(); 61 } 62 testlex_init(&scanner); 63 testset_in( fp, scanner); 64 testset_out( stdout, scanner); 65 testlex(scanner); 66 testlex_destroy(scanner); 67 68 BEGIN(0); 69 } 70.|\n { 71 fprintf(stderr,"Invalid input \"%s\".\n", yytext); 72 error = 1; 73 yyterminate(); 74 } 75} 76 77<<EOF>> { fclose(yyin); yyterminate();} 78 79%% 80 81int main (int argc, char** argv); 82 83int 84main ( int argc, char **argv ) 85{ 86 FILE * fp; 87 yyscan_t scanner; 88 if( argc != 2 ) { 89 fprintf(stderr,"*** Error: Must specify one filename.\n"); 90 exit(-1); 91 } 92 if((fp=fopen(argv[1],"r"))==NULL) { 93 fprintf(stderr,"*** Error: fopen(%s) failed.\n",argv[1]); 94 exit(-1); 95 } 96 testlex_init(&scanner); 97 testset_in( fp, scanner); 98 testset_out( stdout, scanner); 99 testlex(scanner); 100 testlex_destroy(scanner); 101 if (!error) 102 printf("TEST RETURNING OK.\n"); 103 else 104 exit(-1); 105 return 0; 106} 107