Am 27.04.2016 um 17:10 schrieb Hans Hagen:
indeed they are lots of small examples (taken from the list or experiments) but they show what can be done

if they crash (no sure what you mean there) it's most likely due to fonts you don't have on your machine

Yes, many of the blank pages or obscure (to me) error messages seem to be font-related. I'll have to see to that.

a lot has been published in articles in user group journals or for meetings, there is a font manual that you can buy for nominal costs, there are some manuals on the website and an extended version of the more technical one that hardly anyone needs will end up in the distribution some day soon, there are examples on stack exchange, in the mail archive an don the wiki ... a lot of this depends on voluntary work so you can hardly complain about it .. anyone is free to provide more documentation and share experiences

Yes, I know, I'm sorry I let my exasperation run free. When I started out with LaTeX and typesetting more than two decades ago, I had one basic book on LaTeX. Over the years my knowledge of LaTeX, typography, layout design and typesetting grew side by side, if somewhat organically and unsystematic. Nowadays there's about a metre and a half of bookshelf occupied by books on LaTeX, TeX and Typography.

As I make books myself, I'm obviously not averse to buying them. I guess the ConTeXt books on fonts and layout will do me good.

btw, if you want to roll out your own features as in extensions-001 then you also need to know what the font provides (or lacks) .. open type fonts can be pretty complex and there is no consistency in how certain features are implemented

Yes, I learned that already. Will these home-made features only work on open type fonts?

Cheers -- Thomas