include/libtu/optparser.h

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1 /*
2 * libtu/optparser.h
3 *
4 * Copyright (c) Tuomo Valkonen 1999-2000.
5 *
6 * This file is distributed under the terms of the "Artistic License".
7 * See the included file LICENSE for details.
8 */
9
10 #ifndef __LIBTU_OPTPARSER_H
11 #define __LIBTU_OPTPARSER_H
12
13 #include "types.h"
14
15
16 #define OPT_ID(X) ((X)|0x10000)
17 #define OPT_ID_RESERVED(X) ((X)|0x20000)
18
19 /* OPTP_CHAIN is the normal behavior, i.e. single-letter options can be
20 * "chained" together: 'lr -lR'. Use for normal command line programs.
21 * OPTP_MIDLONG allows '-display foo' -like args but disables chaining
22 * of single-letter options. X programs should probably use this.
23 * OPTP_IMMEDIATE allows immediate arguments (-I/usr/include) (and disables
24 * chaining and midlong options).
25 * OPTP_NO_DASH is the same as OPTP_CHAIN but allows the dash to be omitted
26 * for 'tar xzf foo' -like behavior.
27 * Long '--foo=bar' options are supported in all of the modes.
28 */
29
30 enum{
31 OPTP_CHAIN=0,
32 OPTP_MIDLONG=1,
33 OPTP_IMMEDIATE=2,
34 OPTP_NO_DASH=3
35 };
36
37 enum{
38 OPT_ARG=1, /* option has an argument */
39 OPT_OPT_ARG=3 /* option may have an argument */
40 };
41
42
43 typedef struct{
44 int optid;
45 const char *longopt;
46 int flags;
47 } OptParserOpt;
48
49
50 enum{
51 OPT_ID_END=0,
52 OPT_ID_ARGUMENT=1,
53
54 E_OPT_INVALID_OPTION=-1,
55 E_OPT_INVALID_CHAIN_OPTION=-2,
56 E_OPT_SYNTAX_ERROR=-3,
57 E_OPT_MISSING_ARGUMENT=-4,
58 E_OPT_UNEXPECTED_ARGUMENT=-5
59 };
60
61
62 extern void optparser_init(int argc, char *const argv[], int mode,
63 const OptParserOpt *opts);
64 extern int optparser_get_opt();
65 extern const char* optparser_get_arg();
66 extern void optparser_print_error();
67
68 #endif /* __LIBTU_OPTPARSER_H */

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