Working on parser refactor

v0/str.c

@@ -0,0 +1,11 @@
+#include "str.h"
+
+#include <string.h>
+#include <stdlib.h>
+
+char* string_copy(String string) {
+	char* str = malloc(string.length + 1);
+	memcpy(str, string.data, string.length);
+	str[string.length] = '\0';
+	return str;
+}