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