(anonymous guest) (logged out)

Copyright (C) by the contributors. Some rights reserved, license BY-SA.

Sponsored by the Wiki Symposium and the Nuveon GmbH.

 
This is version . It is not the current version, and thus it cannot be edited.
[Back to current version]   [Restore this version]

When specifying markup, we can specify what markup will have a particular effect, and what markup will not have any effect. If we say nothing at all, that markup may have an effect in future releases. The specification is "extensible by omission" because we haven't specified everything. Some things have been left undefined to be defined later.

Example: In HTML, em and strong elements can be nested. If we just specify that **foo** will result in bold text, and //bar// will result in italic text, and we don't specify whether these will nest or not, then we are extensible by omission. Obviously they don't have to nest right now, but they might have to nest in a later revision of the specification.

Add new attachment

Only authorized users are allowed to upload new attachments.

« This particular version was published on 22-Mai-2008 10:41 by 125.237.232.159.