Optional features (was: Markdown Extra Specification (First Draft))

[Allan Odgaard]

On 22 May 2008, at 08:10, Aristotle Pagaltzis wrote:


> [...]

> Optional features are dangerous and impede interoperability.

>

> Everyone who ever thinks about chipping in on the design of

> a spec should read [section 5 of RFC 3339][1]. [...]


I love how it says:

     [...] A format which includes rarely used options is
     likely to cause interoperability problems [...] The
     format defined below includes only one rarely used
     option: fractions of a second. [...]

Which reminds me of when svn started to report fractions of seconds in  
their ‘svn log --xml’ output, causing a few log visualizers to break :)