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/**
* @file stringhelper.h
*/
#ifndef _STRINGHELPER_H_
#define _STRINGHELPER_H_
/**
* substring replacement.
*
* This function handles growing the string if the new length would be
* longer than the alloc size.
*
* @param strp pointer to the string you want to modify
* @param strp_len pointer to current length of the string. If negative, I will
* use strlen() to calculate the length myself.
* @param strp_alloc_size pointer to current allocated size of string
* @param start start position of the replacement. 0 offset. If negative, it is an offset
* against the end of the string; -1 for end of string.
* @param end end position of the replacement. If negative, it is an offset
* against the end of the string; -1 for end of string. If zero (0),
* then end is set to start.
* @param replace string to replace with
* @param replace_len length of the replacement string
*/
void substr_replace(char **strp, int *strp_len, int *strp_alloc_size,
const int start, const int end,
const char *replace, const int replace_len);
#define ESCAPE_LIKE_C 0x0001
#define ESCAPE_UNICODE 0x0002
#define ESCAPE_HEX 0x0004
#define ESCAPE_NONPRINTABLE 0x0008
/**
* Escape a string by specific options.
*
* This function will
* @param strp pointer to string to escape
*/
void string_escape(char **strp, int *strp_len, int *strp_alloc_size,
const char *chars, int chars_len, int options);
void string_unescape(char **strp, int *strp_len, int *strp_size);
int string_count(const char *src, const char *charlist);
int string_ncount(const char *src, size_t srclen,
const char *charlist, size_t listlen);
/* libc doesn't often have strndup, so let's make our own */
char *string_ndup(const char *src, size_t size);
#endif /* _STRINGHELPER_H_ */
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