/* $Id: shhopt.h 8040 2008-04-14 09:20:35Z schoenw $ */

#ifndef SHHOPT_H

#define SHHOPT_H

#ifdef __cplusplus

extern "C" {

#endif

/* constants for recognized option types. */

typedef enum {

    OPT_END,               /* nothing. used as ending element. */

    OPT_FLAG,              /* no argument following. sets variable to 1. */

    OPT_STRING,            /* string argument. */

    OPT_INT,               /* signed integer argument. */

    OPT_UINT,              /* unsigned integer argument. */

    OPT_LONG,              /* signed long integer argument. */

    OPT_ULONG              /* unsigned long integer argument. */

} optArgType;

/* flags modifying the default way options are handeled. */

#define OPT_CALLFUNC  1    /* pass argument to a function. */

typedef struct {

    char       shortName;  /* short option name. */

    char       *longName;  /* long option name, no including '--'. */

    optArgType type;       /* option type. */

    void       *arg;       /* pointer to variable to fill with argument,

                            * or pointer to function if type == OPT_FUNC. */

    int        flags;      /* modifier flags. */

} optStruct;

extern void optSetFatalFunc(void (*f)(const char *, ...));

extern void optParseOptions(int *argc, char *argv[],

			    optStruct opt[], int allowNegNum);

#ifdef __cplusplus

}

#endif

#endif