libftprintf/ft_strsplit.c at master · mini0621/libftprintf · GitHub

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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strsplit.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: mnishimo <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2018/11/26 23:43:30 by mnishimo #+# #+# */
/* Updated: 2019/03/30 13:47:35 by mnishimo ### ########.fr */
/* */
/* ************************************************************************** */

#include"libftprintf.h"

staticintcountwords(charconst*s, charc)
{
inti;
intwc;

if (s==NULL||s[0] =='\0')
return (0);
i=0;
wc=0;
if (s[i] !=c)
wc++;
while (s[i] !='\0')
	{
if (s[i] ==c&&s[i+1] !=c&&s[i+1] !='\0')
wc++;
i++;
	}
return (wc);
}

staticchar*trim(charconst*s, charc, int*start)
{
intj;
char*ptr;
inti;

i=*start;
while (s[i] !='\0'&&s[i] ==c)
i++;
j=i;
while (s[j] !='\0'&&s[j] !=c)
j++;
ptr=ft_strsub(s, i, j-i);
if (ptr==NULL)
return (NULL);
*start=i;
return (ptr);
}

staticvoiddelete(char**s, intindex)
{
inti;

i=0;
while (i<index)
	{
free(s[i]);
i++;
	}
free(s);
}

char**ft_strsplit(charconst*s, charc)
{
intwc;
char**ret;
inti;
intj;

wc=countwords(s, c);
if (!(ret= (char**)malloc(sizeof(char*) * (wc+1))))
return (NULL);
i=-1;
j=0;
while (i++<wc-1)
	{
ret[i] =trim(s, c, &j);
if (ret[i] ==NULL)
 {
delete(ret, i);
return (NULL);
 }
while (s[j] !=c&&s[j] !='\0')
j++;
	}
ret[i] =NULL;
return (ret);
}