Greetings,
Can anyone explain in relatively plain English what the effect of the block attribute is on an element (rec section 3.3.1)?
Substitution group exclusions ("final" attribute) are fairly clear, but I don't clearly see what "disallowed substitutions" adds to this. More to the point, it is not very clear (I actually can't find it anywhere in the Rec) what the value block="subsitution" does that block="#all" does not.
John