One of the most underutilized features of the CL language has to be subroutines. When subroutines were added to the language in version 5.4 of the OS, many of us saw them, thought they were interesting, and filed the tip away for a later date. After all, four years ago, we still had to support 5.2 and 5.3 and weren't able to use these new features. Today, relatively few of us are still supporting 5.3. It's time to take another look at subroutines in CL. The ...

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