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 /* TEST scanner.
25    Basic non-reentrant scanner.
26    Compile with:  flex scanner.l
27 
28    Sample Input:
29        # this is a comment
30        foo = true
31        bar = "string value"
32        integer = 43
33 */
34 %{
35 #include "config.h"
36 %}
37 
38 %option prefix="test" outfile="scanner.c"
39 %option nounput noyywrap noyylineno warn nodefault
40 
41 IDENT [[:alnum:]_-]
42 WS    [[:blank:]]
43 %%
44 
45 ^{IDENT}+{WS}*={WS}*(true|false){WS}*\r?\n    { return 100;}
46 ^{IDENT}+{WS}*={WS}*\"[^\"\n\r]*\"{WS}*\r?\n  { return 101;}
47 ^{IDENT}+{WS}*={WS}*[[:digit:]]+{WS}*\r?\n    { return 102;}
48 ^{WS}*#.*\r?\n     { }
49 ^{WS}*\r?\n        { }
50 .|\n  { fprintf(stderr,"Invalid line.\n"); exit(-1);}
51 
52 %%
53 
54 int main(void);
55 
56 int main ()
57 {
58     yyin = stdin;
59     yyout = stdout;
60     while( yylex() )
61     {
62     }
63     printf("TEST RETURNING OK.\n");
64     return 0;
65 }
66 
67