I wrote a little command line calculator once. Main purpose was to learn about parsing with Bison/Flex. Now, I'm using it every day and haven't changed it in y

I wrote a little command line calculator once. Main purpose was to learn about parsing with Bison/Flex. Now, I'm using it every day and haven't changed it in years. It compiles everywhere even on my M1 with Asahi Linux. All my other software is not beautiful. It requires changes.