kinda successful merge, weird tho, didn't go as smoothly with VScode as usual...

srcs/utils.cpp

@@ -124,5 +124,18 @@ int	path_is_valid(std::string path)
 }
 
 
-
+void	replace_all_substr(std::string &str, const std::string &ori_substr, const std::string &new_substr)
+{
+	if (ori_substr.empty())
+		return;
+	size_t	pos = 0;
+	while (1)
+	{
+		pos = str.find(ori_substr, pos);
+		if (pos == std::string::npos)
+			break;
+		str.replace(pos, ori_substr.size(), new_substr);
+		pos += new_substr.size();
+	}
+}