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 /* A template scanner file to build "scanner.c". */
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include "config.h"
29
30 #define NUMBER 200
31 #define WORD 201
32
33 %}
34
35 %option 8bit prefix="test"
36 %option nounput nomain nodefault noyywrap noinput
37 %option warn
38
39
40 %%
41
42 [[:space:]]+ { }
43 [[:digit:]]+ { printf("NUMBER "); fflush(stdout);}
44 [[:alpha:]]+ { printf("WORD "); fflush(stdout);}
45 . {
46 fprintf(stderr,"*** Error: Unrecognized character '%c' while scanning.\n",
47 yytext[0]);
48 yyterminate();
49 }
50
51 <<EOF>> { printf("<<EOF>>\n"); yyterminate();}
52
53 %%
54
55
56 #define INPUT_STRING_1 "1234 foo bar"
57 #define INPUT_STRING_2 "1234 foo bar *@&@&###@^$#&#*"
58
59 int main(void);
60
61 int
main()62 main ()
63 {
64 char * buf;
65 int len;
66 YY_BUFFER_STATE state;
67
68
69 /* Scan a good string. */
70 printf("Testing: yy_scan_string(%s): ",INPUT_STRING_1); fflush(stdout);
71 state = yy_scan_string ( INPUT_STRING_1 );
72 yylex();
73 yy_delete_buffer(state);
74
75 /* Scan only the first 12 chars of a string. */
76 printf("Testing: yy_scan_bytes(%s): ",INPUT_STRING_2); fflush(stdout);
77 state = yy_scan_bytes ( INPUT_STRING_2, 12 );
78 yylex();
79 yy_delete_buffer(state);
80
81 /* Scan directly from a buffer.
82 We make a copy, since the buffer will be modified by flex.*/
83 printf("Testing: yy_scan_buffer(%s): ",INPUT_STRING_1); fflush(stdout);
84 len = strlen(INPUT_STRING_1) + 2;
85 buf = (char*)malloc( len );
86 strcpy( buf, INPUT_STRING_1);
87 buf[ len -2 ] = 0; /* Flex requires two NUL bytes at end of buffer. */
88 buf[ len -1 ] =0;
89
90 state = yy_scan_buffer( buf, len );
91 yylex();
92 yy_delete_buffer(state);
93
94 printf("TEST RETURNING OK.\n");
95 return 0;
96 }
97