1 /*	$NetBSD: scanner.l,v 1.1.1.1 2009/10/26 00:29:12 christos Exp $	*/
2 
3 /*
4  * This file is part of flex.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * Neither the name of the University nor the names of its contributors
17  * may be used to endorse or promote products derived from this software
18  * without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
21  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
22  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23  * PURPOSE.
24  */
25 
26 /* TEST scanner.
27    Basic non-reentrant scanner.
28    Compile with:  flex scanner.l
29 
30    Sample Input:
31        # this is a comment
32        foo = true
33        bar = "string value"
34        integer = 43
35 */
36 %{
37 #include "config.h"
38 %}
39 
40 %option prefix="test" outfile="scanner.c"
41 %option nounput noyywrap noyylineno warn nodefault
42 
43 IDENT [[:alnum:]_-]
44 WS    [[:blank:]]
45 %%
46 
47 ^{IDENT}+{WS}*={WS}*(true|false){WS}*\r?\n    { return 100;}
48 ^{IDENT}+{WS}*={WS}*\"[^\"\n\r]*\"{WS}*\r?\n  { return 101;}
49 ^{IDENT}+{WS}*={WS}*[[:digit:]]+{WS}*\r?\n    { return 102;}
50 ^{WS}*#.*\r?\n     { }
51 ^{WS}*\r?\n        { }
52 .|\n  { fprintf(stderr,"Invalid line.\n"); exit(-1);}
53 
54 %%
55 
56 int main(void);
57 
58 int main ()
59 {
60     yyin = stdin;
61     yyout = stdout;
62     while( yylex() )
63     {
64     }
65     printf("TEST RETURNING OK.\n");
66     return 0;
67 }
68 
69