cvs: Rebuild without gnuregex library
[dragonfly.git] / gnu / lib / libregex / test / fileregex.c
CommitLineData
984263bc
MD
1#include <sys/types.h>
2#include <stdio.h>
3#include "regex.h"
4
5#define BYTEWIDTH 8
6
7/* Sorry, but this is just a test program. */
8#define LINE_MAX 500
9
10int
11main (argc, argv)
12 int argc;
13 char *argv[];
14{
15 FILE *f;
16 char *filename;
17 char pat[500]; /* Sorry for that maximum size, too. */
18 char line[LINE_MAX];
19 struct re_pattern_buffer buf;
20 char fastmap[(1 << BYTEWIDTH)];
21 const char *compile_ret;
22 unsigned lineno = 1;
23 unsigned nfound = 0;
24
25 /* Actually, it might be useful to allow the data file to be standard
26 input, and to specify the pattern on the command line. */
27 if (argc != 2)
28 {
29 fprintf (stderr, "Usage: %s <filename>.\n", argv[0]);
30 exit (1);
31 }
32
33 filename = argv[1];
34 f = fopen (filename, "r");
35 if (f == NULL)
36 perror (filename);
37
38 buf.allocated = 0;
39 buf.buffer = NULL;
40 buf.fastmap = fastmap;
41
42 printf ("Pattern = ", pat);
43 gets (pat);
44
45 if (feof (stdin))
46 {
47 putchar ('\n');
48 exit (0);
49 }
50
51 compile_ret = re_compile_pattern (pat, strlen (pat), &buf);
52 if (compile_ret != NULL)
53 {
54 fprintf (stderr, "%s: %s\n", pat, compile_ret);
55 exit (1);
56 }
57
58 while (fgets (line, LINE_MAX, f) != NULL)
59 {
60 size_t len = strlen (line);
61 struct re_registers regs;
62 int search_ret
63 = re_search_2 (&buf, NULL, 0, line, len, 0, len, &regs, len);
64
65 if (search_ret == -2)
66 {
67 fprintf (stderr, "%s:%d: re_search failed.\n", filename, lineno);
68 exit (1);
69 }
70
71 nfound += search_ret != -1;
72 lineno++;
73 }
74
75 printf ("Matches found: %u (out of %u lines).\n", nfound, lineno - 1);
76 return 0;
77}