| 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 | |
| 10 | int |
| 11 | main (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, ®s, 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 | } |