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#ifndef _H_ARGV_
#define _H_ARGV_
/** \ingroup rpmio
* \file rpmio/argv.h
*/
typedef const char * ARGstr_t;
typedef ARGstr_t * ARGV_t;
typedef int * ARGint_t;
struct ARGI_s {
unsigned nvals;
ARGint_t vals;
};
typedef struct ARGI_s * ARGI_t;
#ifdef __cplusplus
extern "C" {
#endif
/**
* 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_t argv, FILE * fp)
/*@globals fileSystem @*/
/*@modifies *fp, fileSystem @*/;
/**
* Destroy an argi array.
* @param argi argi array
* @return NULL always
*/
/*@null@*/
ARGI_t argiFree(/*@only@*/ /*@null@*/ ARGI_t argi)
/*@modifies argi @*/;
/**
* Destroy an argv array.
* @param argv argv array
* @return NULL always
*/
/*@null@*/
ARGV_t argvFree(/*@only@*/ /*@null@*/ ARGV_t argv)
/*@modifies argv @*/;
/**
* Return no. of elements in argi array.
* @param argi argi array
* @return no. of elements
*/
int argiCount(/*@null@*/ const ARGI_t argi)
/*@*/;
/**
* Return data from argi array.
* @param argi argi array
* @return argi array data address
*/
/*@null@*/
const ARGint_t argiData(/*@null@*/ const ARGI_t argi)
/*@*/;
/**
* Return no. of elements in argv array.
* @param argv argv array
* @return no. of elements
*/
int argvCount(/*@null@*/ const ARGV_t argv)
/*@*/;
/**
* Return data from argv array.
* @param argv argv array
* @return argv array data address
*/
/*@null@*/
const ARGV_t argvData(/*@null@*/ const ARGV_t argv)
/*@*/;
/**
* Compare argv arrays (qsort/bsearch).
* @param a 1st instance address
* @param b 2nd instance address
* @return result of comparison
*/
/*@-exportlocal@*/
int argvCmp(const void * a, const void * b)
/*@*/;
/*@=exportlocal@*/
/**
* 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 *))
/*@modifies *argv @*/;
/**
* 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)
*/
/*@dependent@*/ /*@null@*/
ARGV_t argvSearch(ARGV_t argv, ARGstr_t val,
int (*compar)(const void *, const void *))
/*@*/;
/**
* 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(/*@out@*/ ARGI_t * argip, int ix, int val)
/*@modifies *argip @*/;
/**
* Add a string to an argv array.
* @retval *argvp argv array
* @param val string arg to append
* @return 0 always
*/
int argvAdd(/*@out@*/ ARGV_t * argvp, ARGstr_t val)
/*@modifies *argvp @*/;
/**
* Append one argv array to another.
* @retval *argvp argv array
* @param av argv array to append
* @return 0 always
*/
int argvAppend(/*@out@*/ ARGV_t * argvp, const ARGV_t av)
/*@modifies *argvp @*/;
/**
* 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)
/*@modifies *argvp @*/;
#ifdef __cplusplus
}
#endif
#endif /* _H_ARGV_ */
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