Am 10.11.2013 18:53 schrieb Tab Atkins Jr.:
This proposal does not address Variable-Sized Images; handling the difficulty and verbosity of that is indeed centralized to the <situations> element, but that doesn't make it much better.
I omitted variable-sized images indeed. The syntax you propose is very lean and elegant and powerful, but it looks rather unintuitive to me. Many websites are built by highly-skilled professionals, and later maintained by editors with less technical knowledge. They can learn how to export an image in 3 or 5 different sizes, but you can't expect them to apply the correct syntax (nor figure out which values to insert into any future CMS UI to generate the img tag).
Also, I am afraid that this shortcut syntax can be quite harmful if applied incorrectly, e.g. by copy-pasting authors.
This is why I'd prefer verbosity in this case.