blob: 3c5c643f9217bcc3b4654f8584f8098df1e737f6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strsubst.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rbousset <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/14 17:19:27 by rbousset #+# #+# */
/* Updated: 2020/02/14 17:19:29 by rbousset ### ########lyon.fr */
/* */
/* ************************************************************************** */
#include <libft.h>
#include <stdlib.h>
char
*ft_strsubst(char *str, const char *pattern, const char *subst)
{
size_t nlen;
char *nstr;
char *ptr;
if ((ptr = ft_strnstr(str, pattern, ft_strlen(str))) == NULL)
return (NULL);
nlen = ft_strlen(str) - ft_strlen(pattern) + ft_strlen(subst);
if ((nstr = (char*)malloc((nlen + 1) * sizeof(char))) == NULL)
return (NULL);
ft_memcpy(nstr, str, ptr - str);
ft_memcpy(nstr + (ptr - str), subst, ft_strlen(subst));
ft_memcpy(nstr + (ptr - str + ft_strlen(subst)),
str + (ptr - str + ft_strlen(pattern)),
ft_strlen(str + (ptr - str + ft_strlen(pattern))));
nstr[nlen] = '\0';
ft_memdel((void*)&str);
return (nstr);
}
|
