typedef struct dyn_string
{
int allocated;
int length;
char *s;
}* dyn_string_t;
#define dyn_string_length(STR) \
((STR)->length)
#define dyn_string_buf(STR) \
((STR)->s)
#define dyn_string_compare(DS1, DS2) \
(strcmp ((DS1)->s, (DS2)->s))
extern int dyn_string_init (struct dyn_string *, int);
extern dyn_string_t dyn_string_new (int);
extern void dyn_string_delete (dyn_string_t);
extern char *dyn_string_release (dyn_string_t);
extern dyn_string_t dyn_string_resize (dyn_string_t, int);
extern void dyn_string_clear (dyn_string_t);
extern int dyn_string_copy (dyn_string_t, dyn_string_t);
extern int dyn_string_copy_cstr (dyn_string_t, const char *);
extern int dyn_string_prepend (dyn_string_t, dyn_string_t);
extern int dyn_string_prepend_cstr (dyn_string_t, const char *);
extern int dyn_string_insert (dyn_string_t, int, dyn_string_t);
extern int dyn_string_insert_cstr (dyn_string_t, int, const char *);
extern int dyn_string_insert_char (dyn_string_t, int, int);
extern int dyn_string_append (dyn_string_t, dyn_string_t);
extern int dyn_string_append_cstr (dyn_string_t, const char *);
extern int dyn_string_append_char (dyn_string_t, int);
extern int dyn_string_substring (dyn_string_t, dyn_string_t, int, int);
extern int dyn_string_eq (dyn_string_t, dyn_string_t);