I vaguely remember trying it out, but not finding it much superior to dabbrev-expand. Looking at the documentation, it looks like it allows you to add additional functions to try if dabbrev fails which could be useful. E.g. I often want to expand current buffer names.

@piyo – yes that would be a great feature. I love ido but maybe I’d love it even more if it was pretty.

And yes, I remember you mentioning the problematic title on my blog. I had a look in my RSS (which looks fine) and Planet Emacsen and it looks like the problem is somewhere between them. Maybe it is down to the theme I’ve chosen.

As an aside, remember I reported the erroneous title on your blog posts when viewing from Google Reader? It turns out that there is some problem with Planet Emacsen’s aggregation of your blog. Please take a look at http://planet.emacsen.org/ to see the problem. If I subscribe to your feed directly there is no Blog Title problem.

Thank you for your idea!

Thanks for the comment. However, the problem I had with ac-dabbrev.el was not that it didn’t return enough candidates (I didn’t implement that feature due to laziness!) or sort them. The problem was that it often didn’t find candidates that dabbrev-expand would find. It could be that I configured it incorrectly.

If you set (setq ac-dabbrev-all-min-count 1) and (setq ac-dabbrev-sort t), ac-dabbrev.el work you want.