With much reading and practice I have become a bit familiar with writing
autolisp routines. Things I couln't do a year ago are now becoming quite
simple.
One thing, however I'm having trouble with is using "while" for loops. Can
anyone explain the "while" function and how it works, maybe with a couple of
examples.
I'm especially baffled by how it is used to read down a data list, looking
for info. Any help would be appreciated.