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#ifndef TEXTBUF_H
#define TEXTBUF_H
struct text_buffer {
char *data;
size_t pos;
size_t capacity;
};
static inline int textbuffer_ensure_capacity(struct text_buffer *txtbuf, size_t len)
{
if (txtbuf->pos + len > txtbuf->capacity) {
char *d;
unsigned capacity = MAX(txtbuf->pos + len, txtbuf->capacity + 4096);
d = cli_realloc(txtbuf->data, capacity);
if(!d)
return -1;
txtbuf->capacity = capacity;
txtbuf->data = d;
}
return 0;
}
static inline int textbuffer_append_len(struct text_buffer *txtbuf, const char *s, size_t len)
{
if(textbuffer_ensure_capacity(txtbuf, len) == -1)
return -1;
memcpy(&txtbuf->data[txtbuf->pos], s, len);
txtbuf->pos += len;
return 0;
}
static inline int textbuffer_append(struct text_buffer *txtbuf, const char *s)
{
size_t len = strlen(s);
return textbuffer_append_len(txtbuf, s, len);
}
static inline int textbuffer_putc(struct text_buffer *txtbuf, const char c)
{
if(textbuffer_ensure_capacity(txtbuf, 1) == -1)
return -1;
txtbuf->data[txtbuf->pos++] = c;
return 0;
}
#endif
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