#include <stdlib.h> /* free(3), malloc(3), realloc(3) */
#include <string.h> /* strncpy(3) */
#include "fatstr.h"

/* quick and dirty ASCII edition */

/* Size by which to grow memory allocations. */
#define GROW_INTERVAL 100

struct FatStr *
FatStr_initialize(struct FatStr *p){

	if((p->v = malloc((sizeof *(p->v)) * GROW_INTERVAL)) == NULL)
		return NULL; /* who knows */
	p->a = GROW_INTERVAL;
	p->s = 0;
	return p;
}

struct FatStr *
FatStr_append(struct FatStr *p, FatStr_scalar_t c){
	FatStr_vector_t t;

	if(p->s + 1 > p->a){
		if((t = realloc(p->v, (sizeof *(p->v)) * (p->a + GROW_INTERVAL)))
				== NULL)
			return NULL;
		p->a += GROW_INTERVAL;
	}
	(p->v)[(p->s)++] = c;
}

/* retval will need to be freed */
char *
FatStr_convert(struct FatStr *p){
	char *r;

	if((r = malloc(p->s * (sizeof *(p->v)))) == NULL) /* might be buggy */
		return NULL;
	strncpy(r, p->v, p->s);
	return r;
}

struct FatStr *
FatStr_destruct(struct FatStr *p){
	free(p->v);
	return NULL;
}

struct FatStr *
FatStr_trimfront(){
}