[Standards] XEP-0106: JID\20Escaping

[Ian Paterson]

Peter Saint-Andre wrote:
> 3. A node identifier MUST NOT start with the string \20, which would 
> be escaped to SP (" ") and therefore mess up transformations to 
> numerous other systems (and probably also mess with users' heads). I 
> think \20 is OK at the end of a node identifier but we might want to 
> discourage that as well.

Yes, we might want to discourage all whitespace characters at the start 
or end of a node identifier (e.g., non-breaking spaces, tabs...).

- Ian