/* $NetBSD: scanner.l,v 1.1.1.1 2009/10/26 00:29:50 christos Exp $ */ /* * This file is part of flex. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE. */ %{ /* A template scanner file to build "scanner.c". */ #include #include #include "config.h" #define NUMBER 200 #define WORD 201 %} %option 8bit outfile="scanner.c" prefix="test" %option nounput nomain nodefault noyywrap %option warn %% [[:space:]]+ { } [[:digit:]]+ { printf("NUMBER "); fflush(stdout);} [[:alpha:]]+ { printf("WORD "); fflush(stdout);} . { fprintf(stderr,"*** Error: Unrecognized character '%c' while scanning.\n", yytext[0]); yyterminate(); } <> { printf("<>\n"); yyterminate();} %% #define INPUT_STRING_1 "1234 foo bar" #define INPUT_STRING_2 "1234 foo bar *@&@&###@^$#&#*" int main(void); int main () { char * buf; int len; YY_BUFFER_STATE state; /* Scan a good string. */ printf("Testing: yy_scan_string(%s): ",INPUT_STRING_1); fflush(stdout); state = yy_scan_string ( INPUT_STRING_1 ); yylex(); yy_delete_buffer(state); /* Scan only the first 12 chars of a string. */ printf("Testing: yy_scan_bytes(%s): ",INPUT_STRING_2); fflush(stdout); state = yy_scan_bytes ( INPUT_STRING_2, 12 ); yylex(); yy_delete_buffer(state); /* Scan directly from a buffer. We make a copy, since the buffer will be modified by flex.*/ printf("Testing: yy_scan_buffer(%s): ",INPUT_STRING_1); fflush(stdout); len = strlen(INPUT_STRING_1) + 2; buf = (char*)malloc( len ); strcpy( buf, INPUT_STRING_1); buf[ len -2 ] = 0; /* Flex requires two NUL bytes at end of buffer. */ buf[ len -1 ] =0; state = yy_scan_buffer( buf, len ); yylex(); yy_delete_buffer(state); printf("TEST RETURNING OK.\n"); return 0; }