2 * Copyright (C) 1994-1996, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.9 1996-05-14 11:33:41 adam
8 * MEMDEBUG turned off by default.
10 * Revision 1.8 1995/09/28 09:18:54 adam
11 * Removed various preprocessor defines.
13 * Revision 1.7 1995/09/04 12:33:27 adam
14 * Various cleanup. YAZ util used instead.
16 * Revision 1.6 1995/01/25 11:30:51 adam
17 * Simple error reporting when parsing regular expressions.
18 * Memory usage reduced.
20 * Revision 1.5 1995/01/24 16:00:22 adam
21 * Added -ansi to CFLAGS.
22 * Some changes to the dfa module.
24 * Revision 1.4 1994/10/04 17:46:44 adam
25 * Function options now returns arg with error option.
27 * Revision 1.3 1994/10/03 17:22:19 adam
28 * Optimization of grepper.
30 * Revision 1.2 1994/09/27 16:31:20 adam
31 * First version of grepper: grep with error correction.
33 * Revision 1.1 1994/09/26 10:16:55 adam
34 * First version of dfa module in alex. This version uses yacc to parse
35 * regular expressions. This should be hand-made instead.
38 * Adam Dickmeiss. 1992-1993
39 * This module is actually very old...
56 void error (const char *format, ...)
59 va_start (argptr, format);
60 fprintf (stderr, "%s error: ", prog);
61 (void) vfprintf (stderr, format, argptr);
68 static int lexer_options (int argc, char **argv)
77 fprintf (stderr, "%s: %s %s\n", prog, __DATE__, __TIME__);
95 debug_dfa_followpos = 1;
100 debug_dfa_followpos = 1;
105 fprintf (stderr, "%s: unknown option `-%s'\n",
114 int main (int argc, char **argv)
121 i = lexer_options (argc, argv);
127 fprintf (stderr, "usage\n %s [-c] [-V] [-s] [-t] [-d[stf]] file\n",
131 else while (--argc > 0)
132 if (**++argv != '-' && **argv)
136 i = read_file (*argv, dfa);
151 fprintf (stderr, "%s: no files specified\n", prog);