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#ifndef _RPMSTRING_H_
#define _RPMSTRING_H_
/** \ingroup rpmstring
* \file rpmio/rpmstring.h
* String manipulation helper functions
*/
#include <stddef.h>
#include <string.h>
#include <stdarg.h>
#include <rpm/rpmutil.h>
#ifdef __cplusplus
extern "C" {
#endif
/** \ingroup rpmstring
* Locale insensitive islower(3)
*/
RPM_GNUC_CONST
static inline int rislower(int c) {
return (c >= 'a' && c <= 'z');
}
/** \ingroup rpmstring
* Locale insensitive isupper(3)
*/
RPM_GNUC_CONST
static inline int risupper(int c) {
return (c >= 'A' && c <= 'Z');
}
/** \ingroup rpmstring
* Locale insensitive isalpha(3)
*/
RPM_GNUC_CONST
static inline int risalpha(int c) {
return (rislower(c) || risupper(c));
}
/** \ingroup rpmstring
* Locale insensitive isdigit(3)
*/
RPM_GNUC_CONST
static inline int risdigit(int c) {
return (c >= '0' && c <= '9');
}
/** \ingroup rpmstring
* Locale insensitive isalnum(3)
*/
RPM_GNUC_CONST
static inline int risalnum(int c) {
return (risalpha(c) || risdigit(c));
}
/** \ingroup rpmstring
* Locale insensitive isblank(3)
*/
RPM_GNUC_CONST
static inline int risblank(int c) {
return (c == ' ' || c == '\t');
}
/** \ingroup rpmstring
* Locale insensitive isspace(3)
*/
RPM_GNUC_CONST
static inline int risspace(int c) {
return (risblank(c) || c == '\n' || c == '\r' || c == '\f' || c == '\v');
}
/** \ingroup rpmstring
* Locale insensitive tolower(3)
*/
RPM_GNUC_CONST
static inline int rtolower(int c) {
return ((risupper(c)) ? (c | ('a' - 'A')) : c);
}
/** \ingroup rpmstring
* Locale insensitive toupper(3)
*/
RPM_GNUC_CONST
static inline int rtoupper(int c) {
return ((rislower(c)) ? (c & ~('a' - 'A')) : c);
}
/**
* Convert hex to binary nibble.
* @param c hex character
* @return binary nibble
*/
RPM_GNUC_CONST
static inline unsigned char rnibble(char c)
{
if (c >= '0' && c <= '9')
return (c - '0');
if (c >= 'a' && c <= 'f')
return (c - 'a') + 10;
if (c >= 'A' && c <= 'F')
return (c - 'A') + 10;
return 0;
}
/**
* Test for string equality
* @param s1 string 1
* @param s2 string 2
* @return 0 if strings differ, 1 if equal
*/
static inline int rstreq(const char *s1, const char *s2)
{
return (strcmp(s1, s2) == 0);
}
/**
* Test for string equality
* @param s1 string 1
* @param s2 string 2
* @param n compare at most n characters
* @return 0 if strings differ, 1 if equal
*/
static inline int rstreqn(const char *s1, const char *s2, size_t n)
{
return (strncmp(s1, s2, n) == 0);
}
/** \ingroup rpmstring
* Locale insensitive strcasecmp(3).
*/
RPM_GNUC_PURE
int rstrcasecmp(const char * s1, const char * s2) ;
/** \ingroup rpmstring
* Locale insensitive strncasecmp(3).
*/
RPM_GNUC_PURE
int rstrncasecmp(const char *s1, const char * s2, size_t n) ;
/** \ingroup rpmstring
* asprintf() clone
*/
int rasprintf(char **strp, const char *fmt, ...) RPM_GNUC_PRINTF(2, 3);
/** \ingroup rpmstring
* vasprintf() clone
*/
int rvasprintf(char **strp, const char *fmt, va_list ap);
/** \ingroup rpmstring
* Concatenate two strings with dynamically (re)allocated memory.
* @param dest pointer to destination string
* @param src source string
* @return realloc'd dest with src appended
*/
char *rstrcat(char **dest, const char *src);
/** \ingroup rpmstring
* Concatenate multiple strings with dynamically (re)allocated memory.
* @param dest pointer to destination string
* @param arg NULL terminated list of strings to concatenate
* @return realloc'd dest with strings appended
*/
char *rstrscat(char **dest, const char *arg, ...) RPM_GNUC_NULL_TERMINATED;
/** \ingroup rpmstring
* strlcpy() clone:
* Copy src to string dest of size n. At most n-1 characters
* will be copied. Always zero-terminates (unless n == 0).
* Length of src is returned; if retval >= n, truncation occurred.
* @param dest destination buffer
* @param src string to copy
* @param n destination buffer size
* @return length of src string
*/
size_t rstrlcpy(char *dest, const char *src, size_t n);
/** \ingroup rpmstring
* String hashing function
* @param string string to hash
* @return hash id
*/
RPM_GNUC_PURE
unsigned int rstrhash(const char * string);
#ifdef __cplusplus
}
#endif
#endif /* _RPMSTRING_H_ */
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