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-rw-r--r--src/ft_split.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/src/ft_split.c b/src/ft_split.c
new file mode 100644
index 0000000..bb51c85
--- /dev/null
+++ b/src/ft_split.c
@@ -0,0 +1,67 @@
+#include "libft.h"
+#include <stdlib.h>
+
+static size_t
+_s_count_words (char const *s, char c)
+{
+ size_t count;
+
+ count = 0;
+ while (*s)
+ {
+ while (*s == c)
+ s++;
+ if (*s)
+ {
+ count++;
+ while (*s && *s != c)
+ s++;
+ }
+ }
+ return (count);
+}
+
+static void
+_s_free_all (char **arr, size_t n)
+{
+ size_t i;
+
+ i = 0;
+ while (i < n)
+ free (arr[i++]);
+ free (arr);
+}
+
+char **
+ft_split (char const *s, char c)
+{
+ size_t count;
+ char **arr;
+ size_t i;
+
+ count = _s_count_words (s, c);
+ arr = malloc ((count + 1) * sizeof (char *));
+ if (!arr)
+ return (NULL);
+ i = 0;
+ while (*s)
+ {
+ while (*s == c)
+ s++;
+ if (*s)
+ {
+ const char *start = s;
+ while (*s && *s != c)
+ s++;
+ arr[i] = ft_substr (start, 0, s - start);
+ if (!arr[i])
+ {
+ _s_free_all (arr, i);
+ return (NULL);
+ }
+ i++;
+ }
+ }
+ arr[i] = NULL;
+ return (arr);
+}