Re: commercial lisps

Hans Kestler wrote:

They both offer free trial versions, so you can check yourself and
look at the features that are important to you.
I did that. Both have limitations in their trial versions. I thought experienced Lispers like you could help me there.

It's no secret that I am affiliated with one of the commercial vendors, but I'll try to be neutral here.

The "trial" versions from the several vendors do have limitations, but for nearly all evaluation purposes I wouldn't think these limitations would prevent a reasonable evaluation. If your particular purposes are indeed hindered by the limitations, then I believe all vendors are willing, even eager, to provide a time-limited license of the full versions of their products for commercial evaluation. Contact them.

By the way, it took me years of squalling at management to change the free product name of my employer's offering from "trial". The notion of "trial" implies a limited trial period, but what the Lisp industry needed is a time-unlimited free version so that beginners and enthusiasts could invest significant learning time with a large, new, and complex language idiom. Adopters need to know that they won't lose their new toy when a "trial" period expires. Java didn't gain the modest success it has achieved with Sun limiting free evaluation periods to 30 days ...
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