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/****************************************************************************
* bfs *
* Copyright (C) 2016-2020 Tavian Barnes <tavianator@tavianator.com> *
* *
* Permission to use, copy, modify, and/or distribute this software for any *
* purpose with or without fee is hereby granted. *
* *
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES *
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF *
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR *
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES *
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN *
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF *
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. *
****************************************************************************/
/**
* A dynamic string library.
*/
#ifndef BFS_DSTRING_H
#define BFS_DSTRING_H
#include "config.h"
#include <stdarg.h>
#include <stddef.h>
/**
* Allocate a dynamic string.
*
* @param capacity
* The initial capacity of the string.
*/
char *dstralloc(size_t capacity);
/**
* Create a dynamic copy of a string.
*
* @param str
* The NUL-terminated string to copy.
*/
char *dstrdup(const char *str);
/**
* Create a length-limited dynamic copy of a string.
*
* @param str
* The string to copy.
* @param n
* The maximum number of characters to copy from str.
*/
char *dstrndup(const char *str, size_t n);
/**
* Get a dynamic string's length.
*
* @param dstr
* The string to measure.
* @return The length of dstr.
*/
size_t dstrlen(const char *dstr);
/**
* Reserve some capacity in a dynamic string.
*
* @param dstr
* The dynamic string to preallocate.
* @param capacity
* The new capacity for the string.
* @return 0 on success, -1 on failure.
*/
int dstreserve(char **dstr, size_t capacity);
/**
* Resize a dynamic string.
*
* @param dstr
* The dynamic string to resize.
* @param length
* The new length for the dynamic string.
* @return 0 on success, -1 on failure.
*/
int dstresize(char **dstr, size_t length);
/**
* Append to a dynamic string.
*
* @param dest
* The destination dynamic string.
* @param src
* The string to append.
* @return 0 on success, -1 on failure.
*/
int dstrcat(char **dest, const char *src);
/**
* Append to a dynamic string.
*
* @param dest
* The destination dynamic string.
* @param src
* The string to append.
* @param n
* The maximum number of characters to take from src.
* @return 0 on success, -1 on failure.
*/
int dstrncat(char **dest, const char *src, size_t n);
/**
* Append a dynamic string to another dynamic string.
*
* @param dest
* The destination dynamic string.
* @param src
* The dynamic string to append.
* @return
* 0 on success, -1 on failure.
*/
int dstrdcat(char **dest, const char *src);
/**
* Append a single character to a dynamic string.
*
* @param str
* The string to append to.
* @param c
* The character to append.
* @return 0 on success, -1 on failure.
*/
int dstrapp(char **str, char c);
/**
* Create a dynamic string from a format string.
*
* @param format
* The format string to fill in.
* @param ...
* Any arguments for the format string.
* @return
* The created string, or NULL on failure.
*/
BFS_FORMATTER(1, 2)
char *dstrprintf(const char *format, ...);
/**
* Create a dynamic string from a format string and a va_list.
*
* @param format
* The format string to fill in.
* @param args
* The arguments for the format string.
* @return
* The created string, or NULL on failure.
*/
char *dstrvprintf(const char *format, va_list args);
/**
* Format some text onto the end of a dynamic string.
*
* @param str
* The destination dynamic string.
* @param format
* The format string to fill in.
* @param ...
* Any arguments for the format string.
* @return
* 0 on success, -1 on failure.
*/
BFS_FORMATTER(2, 3)
int dstrcatf(char **str, const char *format, ...);
/**
* Format some text from a va_list onto the end of a dynamic string.
*
* @param str
* The destination dynamic string.
* @param format
* The format string to fill in.
* @param args
* The arguments for the format string.
* @return
* 0 on success, -1 on failure.
*/
int dstrvcatf(char **str, const char *format, va_list args);
/**
* Free a dynamic string.
*
* @param dstr
* The string to free.
*/
void dstrfree(char *dstr);
#endif // BFS_DSTRING_H
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