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ft_strtrim.c
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ft_strtrim.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strtrim.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: dchristo <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2015/11/26 23:29:31 by dchristo #+# #+# */
/* Updated: 2015/12/09 16:07:50 by dchristo ### ########.fr */
/* */
/* ************************************************************************** */
#include <stdlib.h>
#include "libft.h"
static void ft_initialisation(int *len, int *i, int *blank, const char *s)
{
*i = 0;
*blank = 0;
while ((ft_isblank(s[*i]) || s[*i] == '\n') && s[*i] != '\0')
{
*i = *i + 1;
*blank = *blank + 1;
}
*len = ft_strlen(s);
*len = *len - 1;
while ((ft_isblank(s[*len]) || s[*len] == '\n') && *len > 1)
{
*blank = *blank + 1;
*len = *len - 1;
}
*i = *i - 1;
*len = *len + 1;
}
char *ft_strtrim(char const *s)
{
char *dest;
int i;
int blank;
int j;
int len;
j = 0;
ft_initialisation(&len, &i, &blank, s);
if ((int)(ft_strlen(s) - blank) < 0)
{
if ((dest = (char *)malloc(1 * sizeof(*dest))) == NULL)
return (NULL);
}
else
{
if ((dest = (char *)malloc(((ft_strlen(s) + 1) - blank) *
sizeof(char)))
== NULL)
return (NULL);
}
while (s[++i] != '\0' && i < len)
dest[j++] = s[i];
dest[j] = '\0';
return (dest);
}