refactor: improve readibility of ft_split.c

ft_split.c

@@ -53,29 +53,31 @@ char **free_all(char **result)
  return (NULL);
 }
 
-char **ft_split(char const *s, char c)
+char **ft_split(char const *str, char c)
 {
  char **result;
  int word_index;
+ int i;
+ int len;
 
- if (!s)
+ if (!str)
  return (NULL);
- word_index = 0;
- result = (char **) malloc(sizeof(char *) * (count_words(s, c) + 1));
+ result = (char **) ft_calloc(sizeof(char *), count_words(str, c) + 1);
  if (!result)
  return (NULL);
- while (*s)
+ word_index = 0;
+ i = 0;
+ while (str[i])
  {
- while (*s && *s == c)
- s++;
- if (*s)
- {
-  result[word_index] = ft_substr(s, 0, wlen(s, c));
-  if (!result[word_index++])
-  return (free_all(result));
- s += wlen(s, c);
- }
+ while (str[i] && str[i] == c)
+ i++;
+ if (!str[i])
+  break ;
+ len = wlen(str + i, c);
+ result[word_index] = ft_substr(str, i, len);
+ if (!result[word_index++])
+ return (free_all(result));
+ i += len;
  }
- result[word_index] = NULL;
  return (result);
 }