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#ifndef __XSTRING_H_
#define __XSTRING_H_
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
struct xstring {
char* buf;
size_t size;
FILE* fp;
};
typedef struct xstring xstring;
static inline xstring *
xstring_new(void)
{
xstring *str;
str = calloc(1, sizeof(*str));
if (str == NULL)
abort();
str->fp = open_memstream(&str->buf, &str->size);
if (str->fp == NULL)
abort();
return (str);
}
static inline void
xstring_reset(xstring *str)
{
if (str->buf)
memset(str->buf, 0, str->size);
rewind(str->fp);
}
static inline void
xstring_free(xstring *str)
{
if (str == NULL)
return;
fclose(str->fp);
free(str->buf);
free(str);
}
#define xstring_renew(s) \
do { \
if (s) { \
xstring_reset(s); \
} else { \
s = xstring_new(); \
} \
} while(0)
static inline char *
xstring_get(xstring *str)
{
if (str == NULL)
return (NULL);
fclose(str->fp);
char *ret = str->buf;
free(str);
return (ret);
}
#endif
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