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yap-6.3/packages/PLStream/pl-opts.h

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2008-12-22 12:02:22 +00:00
/*******************************
* OPTION LISTS *
*******************************/
#define OPT_BOOL (0) /* types */
#define OPT_INT (1)
#define OPT_STRING (2)
#define OPT_ATOM (3)
#define OPT_TERM (4) /* arbitrary term */
#define OPT_LONG (5)
#define OPT_NATLONG (6) /* > 0 */
#define OPT_TYPE_MASK 0xff
#define OPT_INF 0x100 /* allow 'inf' */
#define OPT_ALL 0x1 /* flags */
typedef struct
{ atom_t name; /* Name of option */
int type; /* Type of option */
} opt_spec, *OptSpec;
extern bool scan_options(term_t options, int flags, atom_t optype,
const opt_spec *specs, ...);