While a draft "standard" of the CSS Working Group of the W3C (as
much as any W3C "living document" is a "standard" in any meaning of
the word) says in a (non normative) section that both semicolon and
comma are allowed [1], the MDN has the following thing to say [2]:
> To mitigate this problem of virtual viewport […], Apple introduced
> the "viewport meta tag" […]. Apple's documentation does a good job
> explaining how web developers can use this tag, but we had to do
> some detective work to figure out exactly how to implement it in
> Fennec. For example, Safari's documentation says the content is a
> "comma-delimited list," but existing browsers and web pages use
> any mix of commas, semicolons, and spaces as separators.
This leaves us to believe that although some W3C document says that
both are ok, comma is the more portable choice.
[1]: https://drafts.csswg.org/css-device-adapt/#viewport-meta
[2]: https://developer.mozilla.org/en-US/docs/Web/HTML/Viewport_meta_tag
* XML validation & indent
* Wrong attribution of the form (<x/>) element, which was put as a
sibling of thhe <user-preference/> element, where it should have
been a child, according to the written text (and nearby examples)
The XEP had the requirements for the 'to'-attribute of <sign/> and
<crypt/> interchanged. Thanks to defanor <defanor@uberspace.net> for
pointing this out.
Acked-by: Vincent Breitmoser <look@my.amazin.horse>
Improve explanations, descriptions and examples, introduce new attribute and complete all sections:
* Remove link to encryption protocol namespaces
* Add short name
* Shorten and improve introduction
* Use emphasizing text formatting instead of quotation marks
* Add new section for explaining the core properties of trust messages
* Add examples comparing trust messages to public key certificates
* Improve description of trust message structure
* Introduce 'usage' attribute for 'trust-message' element
* Focus on XEP-0420 and adjust examples accordingly
* Complete sections 'IANA Considerations', 'XMPP Registrar Considerations' and 'XML Schema'
