fix: Fixed ALL the code

src/utils/Makefile.am

@@ -1,7 +1,9 @@
 lib_LIBRARIES = libutils.a
 
 libutils_a_SOURCES =  \
-	string_utils.c
+	string_utils/string_utils.c \
+	ast/ast.c \
+	lists/lists.c 
 
 libutils_a_CPPFLAGS = -I$(top_srcdir)/src
 

src/utils/string_utils/string_utils.c

@@ -1,4 +1,7 @@
-#include "utils/string_utils/string_utils.h"
+#include "string_utils.h"
+
+#include <ctype.h>
+#include <stddef.h>
 
 ssize_t skip_blanks(char **str)
 {
@@ -7,7 +10,7 @@ ssize_t skip_blanks(char **str)
         return 0;
     }
     ssize_t skipped = 0;
-    while (str[skipped] != '\0' && !isblank(str[skipped]))
+    while (*str[skipped] != '\0' && !isblank(str[skipped]))
     {
         skipped++;
     }

src/utils/string_utils/string_utils.h

@@ -1,6 +1,8 @@
 #ifndef STRING_UTILS_H
 #define STRING_UTILS_H
 
+#include <sys/types.h>
+
 /*
  * @brief: skips blank characters at the beginning of [str].
  * @return: number of characters skipped.