- From: Steven Pemberton <steven.pemberton@cwi.nl>
- Date: Wed, 05 Jul 2017 14:27:44 +0200
- To: public-xformsusers@w3.org, "XForms Users Community Group Issue Tracker" <sysbot+tracker@w3.org>, "Steven Pemberton" <steven.pemberton@cwi.nl>
I have the first of these running at
http://homepages.cwi.nl/~steven/forms/examples/email.xml
Steven
On Wed, 05 Jul 2017 13:53:09 +0200, Steven Pemberton
<steven.pemberton@cwi.nl> wrote:
> So here's a possible approach:
>
> 1. We include an ascii email type, a subset of RFC 5321:
>
> email: atom ("." atom)* "@" sub ("." sub)+
>
> sub: letdig (ldh* letdig)?
> letdig: a-Z A-Z 0-9
> ldh: letdig | "-"
> atom: atext+atext: ALPHA | DIGIT
> | "!" | "#" | "$" | "%" | "&" | "'" | "*" | "+" | "-" | "/"
> | "=" | "?" | "^" | "_" | "`" | "{" | "|" | "}" | "~"
>
> This drops address literals, quoted strings, and requires at least one
> "." after the @
>
> 2. We add an "international" email type:
>
> iemail: atom ("." atom)* "@" sub ("." sub)+
>
> sub: letdig (ldh* letdig)? | U-label
> letdig: a-Z A-Z 0-9
> ldh: letdig | "-"
> atom: atext+
> atext: ALPHA | DIGIT
> | "!" | "#" | "$" | "%" | "&" | "'" | "*" | "+" | "-" | "/"
> | "=" | "?" | "^" | "_" | "`" | "{" | "|" | "}" | "~"
> | non-ascii
> U-label: <still have to work out exactly the definition, but a
> string of unicode characters with some restriction>
>
> This also drops address literals, quoted strings, and requires at least
> one "." after the @, but allows non-ascii characters on both sides of
> the @.
>
> Steven
Received on Wednesday, 5 July 2017 12:28:19 UTC