/**
* @internal
*
* If required, enlarge the buffer to fit the new size.
*
* @param buf the buffer to resize
* @param size the minimum size of the buffer
*
* @return #EINA_TRUE on success, #EINA_FALSE on failure.
*/
Eina_Bool
_eina_strbuf_common_grow(size_t csize, Eina_Strbuf * buf, size_t size)
{
if ((size + 1) < buf->size)
return EINA_TRUE;
return _eina_strbuf_common_resize(csize, buf, size);
}
/**
* @brief Remove a slice of the given string buffer.
*
* @param buf The string buffer to remove a slice.
* @param start The initial (inclusive) slice position to start
* removing, in bytes.
* @param end The final (non-inclusive) slice position to finish
* removing, in bytes.
* @return #EINA_TRUE on success, #EINA_FALSE on failure.
*
* This function removes a slice of @p buf, starting at @p start
* (inclusive) and ending at @p end (non-inclusive). Both values are
* in bytes. It returns #EINA_FALSE on failure, #EINA_TRUE otherwise.
*/
Eina_Bool
eina_strbuf_common_remove(size_t csize,
Eina_Strbuf * buf, size_t start, size_t end)
{
size_t remove_len, tail_len;
if (end >= buf->len)
end = buf->len;
if (end <= start)
return EINA_TRUE;
remove_len = end - start;
if (remove_len == buf->len) {
free(buf->buf);
return _eina_strbuf_common_init(csize, buf);
}
tail_len = buf->len - end + 1; /* includes '\0' */
memmove(buf->buf + (start * csize),
buf->buf + (end * csize), tail_len * csize);
buf->len -= remove_len;
return _eina_strbuf_common_resize(csize, buf, buf->len);
}
/**
* @internal
* @brief Remove a slice of the given string buffer.
*
* @param csize the character size
* @param buf The string buffer to remove a slice.
* @param start The initial (inclusive) slice position to start
* removing, in bytes.
* @param end The final (non-inclusive) slice position to finish
* removing, in bytes.
* @return #EINA_TRUE on success, #EINA_FALSE on failure.
*
* This function removes a slice of @p buf, starting at @p start
* (inclusive) and ending at @p end (non-inclusive). Both values are
* in bytes. It returns #EINA_FALSE on failure, #EINA_TRUE otherwise.
*/
Eina_Bool
eina_strbuf_common_remove(size_t csize,
Eina_Strbuf *buf,
size_t start,
size_t end)
{
size_t remove_len, tail_len;
if (end >= buf->len) end = buf->len;
if (end <= start) return EINA_TRUE;
/* This is a read only buffer which need change to be made */
if (buf->ro)
{
char *dest;
dest = malloc(buf->size);
if (!dest) return 0;
memcpy(dest, buf->buf, buf->len);
buf->buf = dest;
}
remove_len = end - start;
if (remove_len == buf->len)
{
free(buf->buf);
return _eina_strbuf_common_init(csize, buf);
}
tail_len = buf->len - end + 1; /* includes '\0' */
memmove(((unsigned char *)(buf->buf)) + (start * csize),
((unsigned char *)(buf->buf)) + (end * csize),
tail_len * csize);
buf->len -= remove_len;
return _eina_strbuf_common_resize(csize, buf, buf->len);
}
