DIESEL: "Programming" in AutoCAD LT

DIESEL ("Dumb Interpretively Evaluated String Expression Language") is maybe one of the mostly overlooked customization options in AutoCAD. It's not a real programming language, but more than just command-scripting, since it i.e. supports if-statements. It's sometimes called a "macro language". And the good part about it is, that it can be used in AutoCAD LT (i.e. in tool palettes, in menus, in toolbars and in fields). Of course it works in the full AutoCAD version too and in BricsCAD where applicable since BricsCAD V9.

In the AutoCAD user help file there is a whole chapter about DIESEL under the "Customization" subsection. (Regarding pdf: This link leads to the customization guide for AutoCAD 2000 as pdf. Chapter 5 is about DIESEL which, I would say, did not change so much since then. But still - compare it with the latest customization guide in the help file.)

Beyond that here are some links to websites, where I found some more information:

D-I-E-S-E-L

Using the Diesel Macro Language

DIESEL programming in AutoCAD (zip)

How to Write a DIESEL Macro

The LT Side of Things: label "DIESEL"

CADing && Coding: label "DIESEL"

CADing && Coding: Perform Loop Operations in AutoCAD LT using DIESEL

D I E S E L (a general, program independent introduction)