Lisp Tlen Jun 2026

(define-telnet-command do-echo 1) (define-telnet-command dont-echo 2)

Code contained within standard parentheses is "inert"—it exists in the lung of the program, waiting to be used. Code contained within combustion brackets is "burning." It executes with maximum priority but consumes the system's "oxygen budget." lisp tlen

Happy hacking, parentheses and all.

If "tlen" was supposed to be a custom function or typo for getting length: 15 lines of Lisp, and you have a protocol server

That's it. 15 lines of Lisp, and you have a protocol server. How to Use the TLEN Command

TLEN (short for "Total Length") is a custom AutoLISP routine used to instantly sum the lengths or perimeters of a selection set. It iterates through various object types—including lines, polylines, splines, circles, and arcs—and displays the combined result in the command line or a dialogue box. How to Use the TLEN Command