#ifndef _H_MACRO_
#define	_H_MACRO_

typedef /*@abstract@*/ struct MacroEntry {
	struct MacroEntry *prev;
	const char *name;	/* Macro name */
	const char *opts;	/* Macro parameters (ala getopt) */
	const char *body;	/* Macro body */
	int	used;		/* No. of expansions */
	int	level;
} MacroEntry;

typedef /*@abstract@*/ struct MacroContext {
	MacroEntry **	macroTable;
	int		macrosAllocated;
	int		firstFree;
} MacroContext;

/*
 * Markers for types of macros added throughout rpm.
 */
#define	RMIL_DEFAULT	-15
#define	RMIL_MACROFILES	-13
#define	RMIL_RPMRC	-11

#define	RMIL_CMDLINE	-7
#define	RMIL_TARBALL	-5
#define	RMIL_SPEC	-3
#define	RMIL_OLDSPEC	-1
#define	RMIL_GLOBAL	0

#ifdef __cplusplus
extern "C" {
#endif

void	dumpMacroTable	(MacroContext *mc, FILE *f);

/* XXX this is used only in build/expression.c and will go away. */
const char *getMacroBody (MacroContext *mc, const char *name);

int	expandMacros	(void *spec, MacroContext *mc, char *sbuf, size_t sbuflen);
void	addMacro	(MacroContext *mc, const char *n, const char *o, const char *b, int depth);
void	delMacro	(MacroContext *mc, const char *n);

int	rpmDefineMacro	(MacroContext *mc, const char *macro, int level);
void	initMacros	(MacroContext *mc, const char *macrofile);
void	freeMacros	(MacroContext *mc);

#define COMPRESSED_NOT   0
#define COMPRESSED_OTHER 1
#define COMPRESSED_BZIP2 2
int	isCompressed	(const char *file, int *compressed);

char *	rpmExpand	(const char *arg, ...);
const char *rpmGetPath	(const char *path, ...);
int	rpmExpandNumeric (const char *arg);

#ifdef __cplusplus
}
#endif

#endif	/* _H_ MACRO_ */