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 /* The scanner expects to link to bison yylval . */ 26 #include <stdio.h> 27 #include <stdlib.h> 28 #include "parser.h" 29 #include "config.h" 30 static char* STRDUP(char* s1); 31 #define YY_EXTRA_TYPE int 32 %} 33 34 %option 8bit outfile="scanner.c" prefix="test" 35 %option reentrant bison-bridge bison-locations yylineno 36 %option nomain nounput noyy_top_state noyywrap nodefault warn 37 %option prefix="test" header="scanner.h" 38 39 40 %% 41 42 if ( !yyextra) 43 yyextra = 1; 44 45 ^[[:digit:]]+ { 46 yylval->lineno = yyextra++; 47 yylloc->first_line = (int)strtol(yytext,NULL,10); 48 return LINENO; 49 } 50 ":" { return COLON; } 51 " " { return SPACE; } 52 "=" { return EQUAL; } 53 [[:alnum:]_]+ { yylval->str = STRDUP(yytext); return IDENT;} 54 55 \r|\n { } 56 . { yyterminate();} 57 %% 58 59 60 static char* STRDUP(char* s1) 61 { 62 char* s2 = (char*)malloc(strlen(s1)+1); 63 sprintf(s2,"%s",s1); 64 return s2; 65 } 66