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#ifndef _H_ARGV_
#define _H_ARGV_
/** \ingroup rpmargv
* \file rpmio/argv.h
*/
#include <stdio.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef char ** ARGV_t;
typedef char * const *ARGV_const_t;
typedef int * ARGint_t;
struct ARGI_s {
unsigned nvals;
ARGint_t vals;
};
typedef struct ARGI_s * ARGI_t;
typedef struct ARGI_s const * const ARGI_const_t;
/** \ingroup rpmargv
* Print argv array elements.
* @param msg output message prefix (or NULL)
* @param argv argv array
* @param fp output file handle (NULL uses stderr)
*/
void argvPrint(const char * msg, ARGV_const_t argv, FILE * fp);
/** \ingroup rpmargv
* Destroy an argi array.
* @param argi argi array
* @return NULL always
*/
ARGI_t argiFree(ARGI_t argi);
/** \ingroup rpmargv
* Create an empty argv array.
* @return pointer to empty argv
*/
ARGV_t argvNew(void);
/** \ingroup rpmargv
* Destroy an argv array.
* @param argv argv array
* @return NULL always
*/
ARGV_t argvFree(ARGV_t argv);
/** \ingroup rpmargv
* Return no. of elements in argi array.
* @param argi argi array
* @return no. of elements
*/
int argiCount(ARGI_const_t argi);
/** \ingroup rpmargv
* Return data from argi array.
* @param argi argi array
* @return argi array data address
*/
ARGint_t argiData(ARGI_const_t argi);
/** \ingroup rpmargv
* Return no. of elements in argv array.
* @param argv argv array
* @return no. of elements
*/
int argvCount(ARGV_const_t argv);
/** \ingroup rpmargv
* Return data from argv array.
* @param argv argv array
* @return argv array data address
*/
ARGV_t argvData(ARGV_t argv);
/** \ingroup rpmargv
* Compare argv arrays (qsort/bsearch).
* @param a 1st instance address
* @param b 2nd instance address
* @return result of comparison
*/
int argvCmp(const void * a, const void * b);
/** \ingroup rpmargv
* Sort an argv array.
* @param argv argv array
* @param compar strcmp-like comparison function, or NULL for argvCmp()
* @return 0 always
*/
int argvSort(ARGV_t argv, int (*compar)(const void *, const void *));
/** \ingroup rpmargv
* Find an element in an argv array.
* @param argv argv array
* @param val string to find
* @param compar strcmp-like comparison function, or NULL for argvCmp()
* @return found string (NULL on failure)
*/
ARGV_t argvSearch(ARGV_const_t argv, const char *val,
int (*compar)(const void *, const void *));
/** \ingroup rpmargv
* Add an int to an argi array.
* @retval *argip argi array
* @param ix argi array index (or -1 to append)
* @param val int arg to add
* @return 0 always
*/
int argiAdd(ARGI_t * argip, int ix, int val);
/** \ingroup rpmargv
* Add a string to an argv array.
* @retval *argvp argv array
* @param val string arg to append
* @return 0 always
*/
int argvAdd(ARGV_t * argvp, const char *val);
/** \ingroup rpmargv
* Add a number to an argv array (converting to a string).
* @retval *argvp argv array
* @param val numeric arg to append
* @return 0 always
*/
int argvAddNum(ARGV_t * argvp, int val);
/** \ingroup rpmargv
* Append one argv array to another.
* @retval *argvp argv array
* @param av argv array to append
* @return 0 always
*/
int argvAppend(ARGV_t * argvp, ARGV_const_t av);
/** \ingroup rpmargv
* Split a string into an argv array.
* @retval *argvp argv array
* @param str string arg to split
* @param seps seperator characters
* @return 0 always
*/
int argvSplit(ARGV_t * argvp, const char * str, const char * seps);
#ifdef __cplusplus
}
#endif
#endif /* _H_ARGV_ */
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