piscine-rush02/ex00/ft_linked_list.c

108 lines
2.8 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_linked_list.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: tischmid <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/04/01 15:25:42 by tischmid #+# #+# */
/* Updated: 2023/04/02 18:12:47 by tischmid ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_linked_list.h"
#include "ft_strlib.h"
#include <stdlib.h>
t_map_entry *ll_map_new_entry(char *key, char *value)
{
t_map_entry *new_entry;
char *new_value;
char *new_key;
new_value = (char *) malloc(sizeof(char) * (ft_strlen(value) + 1));
new_key = (char *) malloc(sizeof(char) * (ft_strlen(key) + 1));
ft_strcpy(new_value, value);
ft_strcpy(new_key, key);
new_entry = (t_map_entry *) malloc(sizeof(t_map_entry));
new_entry->key = new_key;
new_entry->value = new_value;
new_entry->next = NULL;
return (new_entry);
}
char *ll_map_get(t_map_entry *head, char *key)
{
t_map_entry *current;
if (head != NULL)
{
current = head;
while (current != NULL)
{
if (!ft_strcmp(current->key, key))
return (current->value);
current = current->next;
}
}
return (NULL);
}
void ll_map_push(t_map_entry *head, char *key, char *value)
{
t_map_entry *current;
if (head != NULL)
{
current = head;
while (current->next != NULL)
current = current->next;
current->next = ll_map_new_entry(key, value);
}
}
void free_entry(t_map_entry *entry)
{
free(entry->key);
free(entry->value);
}
t_map_entry *ll_pop_last(t_map_entry *head, t_ret_flag noretval, int free_data)
{
t_map_entry *current;
t_map_entry *retval;
retval = NULL;
if (head == NULL)
return (retval);
if (head->next == NULL)
{
if (noretval != POP_NO_RETURN_VAL)
retval = ll_map_new_entry(head->key, head->value);
if (free_data)
free_entry(head);
free(head);
return (retval);
}
current = head;
while (current->next->next != NULL)
current = current->next;
if (noretval != POP_NO_RETURN_VAL)
retval = ll_map_new_entry(current->next->key, current->next->value);
if (free_data)
free_entry(current->next);
free(current->next);
current->next = NULL;
return (retval);
}
void ll_clear(t_map_entry *head, int free_data)
{
if (head != NULL)
{
while (head->next != NULL)
ll_pop_last(head, POP_NO_RETURN_VAL, free_data);
ll_pop_last(head, POP_NO_RETURN_VAL, free_data);
}
}