2 * Copyright (C) 1994, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.8 1995-09-28 09:18:54 adam
8 * Removed various preprocessor defines.
10 * Revision 1.7 1995/09/04 12:33:27 adam
11 * Various cleanup. YAZ util used instead.
13 * Revision 1.6 1995/01/25 11:30:51 adam
14 * Simple error reporting when parsing regular expressions.
15 * Memory usage reduced.
17 * Revision 1.5 1995/01/24 16:00:22 adam
18 * Added -ansi to CFLAGS.
19 * Some changes to the dfa module.
21 * Revision 1.4 1994/10/04 17:46:44 adam
22 * Function options now returns arg with error option.
24 * Revision 1.3 1994/10/03 17:22:19 adam
25 * Optimization of grepper.
27 * Revision 1.2 1994/09/27 16:31:20 adam
28 * First version of grepper: grep with error correction.
30 * Revision 1.1 1994/09/26 10:16:55 adam
31 * First version of dfa module in alex. This version uses yacc to parse
32 * regular expressions. This should be hand-made instead.
35 * Adam Dickmeiss. 1992-1993
36 * This module is actually very old...
53 void error (const char *format, ...)
56 va_start (argptr, format);
57 fprintf (stderr, "%s error: ", prog);
58 (void) vfprintf (stderr, format, argptr);
65 static int lexer_options (int argc, char **argv)
74 fprintf (stderr, "%s: %s %s\n", prog, __DATE__, __TIME__);
92 debug_dfa_followpos = 1;
97 debug_dfa_followpos = 1;
102 fprintf (stderr, "%s: unknown option `-%s'\n",
111 int main (int argc, char **argv)
118 i = lexer_options (argc, argv);
124 fprintf (stderr, "usage\n %s [-c] [-V] [-s] [-t] [-d[stf]] file\n",
128 else while (--argc > 0)
129 if (**++argv != '-' && **argv)
133 i = read_file (*argv, dfa);
148 fprintf (stderr, "%s: no files specified\n", prog);