Branch
Hash :
f1843fc1
Author :
Thomas de Grivel
Date :
2022-01-03T14:06:48
quote
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/*
* kv - key value text file format
*
* Copyright 2022 Thomas de Grivel
*/
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include "rope.h"
void rope_init (s_rope *r, char *str, size_t size, s_rope *next)
{
assert(r);
r->str = str;
r->size = size;
r->next = next;
}
s_rope * rope_new (char *str, size_t size, s_rope *next)
{
s_rope *r = calloc(sizeof(s_rope), 1);
if (r)
rope_init(r, str, size, next);
return r;
}
void rope_delete (s_rope *r)
{
r->str = NULL;
r->next = NULL;
free(r);
}
void rope_delete_all (s_rope *r)
{
while (r) {
s_rope *t = r;
r = r->next;
rope_delete(t);
}
}
void rope_delete_all_free (s_rope *r)
{
while (r) {
s_rope *t = r;
r = r->next;
free(t->str);
t->str = NULL;
t->size = 0;
rope_delete(t);
}
}
int rope_push (s_rope **r, char *str, size_t size)
{
s_rope *n;
assert(r);
n = rope_new(str, size, *r);
if (n) {
*r = n;
return 0;
}
return -1;
}
size_t rope_length (const s_rope *r)
{
size_t l = 0;
while (r) {
l++;
r = r->next;
}
return l;
}
void rope_swap (s_rope *a, s_rope *b)
{
char *str;
size_t size;
assert(a);
assert(b);
str = a->str;
size = a->size;
a->str = b->str;
a->size = b->size;
b->str = str;
b->size = size;
}
void rope_sort_by_size (s_rope *r)
{
s_rope *i;
size_t n;
assert(r);
n = rope_length(r);
while (n > 1) {
size_t k = n;
int swap = 0;
i = r;
while (k > 1) {
if (i->size > i->next->size) {
swap = 1;
rope_swap(i, i->next);
}
k--;
i = i->next;
}
if (!swap)
break;
n--;
}
}
int rope_print (s_rope *r, FILE *fp)
{
int ret;
if (r) {
assert(fp);
ret = fwrite(r->str, r->size, 1, fp);
if (ret != 1)
return -1;
r = r->next;
while (r) {
ret = fwrite("\n\n", 2, 1, fp);
if (ret != 1)
return -1;
ret = fwrite(r->str, r->size, 1, fp);
if (ret != 1)
return -1;
r = r->next;
}
}
ret = fwrite("\n", 1, 1, fp);
if (ret != 1)
return -1;
return 0;
}