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/*
* libtu/optparser.h
*
* Copyright (c) Tuomo Valkonen 1999-2004.
*
* You may distribute and modify this library under the terms of either
* the Clarified Artistic License or the GNU LGPL, version 2.1 or later.
*/
#ifndef LIBTU_OPTPARSER_H
#define LIBTU_OPTPARSER_H
#include "types.h"
#define OPT_ID_NOSHORT_FLAG 0x10000
#define OPT_ID_RESERVED_FLAG 0x20000
#define OPT_ID(X) ((X)|OPT_ID_NOSHORT_FLAG)
#define OPT_ID_RESERVED(X) ((X)|OPT_ID_RESERVED_FLAG)
/* OPTP_CHAIN is the normal behavior, i.e. single-letter options can be
* "chained" together: 'lr -lR'. Use for normal command line programs.
* OPTP_MIDLONG allows '-display foo' -like args but disables chaining
* of single-letter options. X programs should probably use this.
* OPTP_IMMEDIATE allows immediate arguments (-I/usr/include) (and disables
* chaining and midlong options).
* OPTP_NO_DASH is the same as OPTP_CHAIN but allows the dash to be omitted
* for 'tar xzf foo' -like behavior.
* Long '--foo=bar' options are supported in all of the modes.
*/
enum{
OPTP_CHAIN=0,
OPTP_DEFAULT=0,
OPTP_MIDLONG=1,
OPTP_IMMEDIATE=2,
OPTP_NO_DASH=3
};
enum{
OPT_ARG=1, /* option has an argument */
OPT_OPT_ARG=3 /* option may have an argument */
};
#define END_OPTPARSEROPTS {0, NULL, 0, NULL, NULL}
typedef struct _OptParserOpt{
int optid;
const char *longopt;
int flags;
const char *argname;
const char *descr;
} OptParserOpt;
enum{
OPT_ID_END=0,
OPT_ID_ARGUMENT=1,
E_OPT_INVALID_OPTION=-1,
E_OPT_INVALID_CHAIN_OPTION=-2,
E_OPT_SYNTAX_ERROR=-3,
E_OPT_MISSING_ARGUMENT=-4,
E_OPT_UNEXPECTED_ARGUMENT=-5
};
extern void optparser_init(int argc, char *const argv[], int mode,
const OptParserOpt *opts);
extern void optparser_printhelp(int mode, const OptParserOpt *opts);
extern int optparser_get_opt();
extern const char* optparser_get_arg();
extern void optparser_print_error();
#endif /* LIBTU_OPTPARSER_H */
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