Re: [ISSUE-53] (Empty string for allowedCharacters): Empty string for allowedCharacters [MLW-LT Standard Draft]

On 10.10.2012 14:25, Yves Savourel wrote:

> I think it's a good idea. But it seems a bit "un-formal" as there
> seems to be nothing in http://www.w3.org/TR/xmlschema-2/#regexs that
> requires implementations to have such flag. So there is no guaranty
> that . can be used like that.

XML schema solves this by three string types -- xs:string,
xs:normalizedString and xs:token -- each type has different level of
whitespace normalization applied before xs:pattern is evaluated. So
effectively if you want . to include \n and \r you can simply use
xs:token instead of xs:string and you are done.

But such flag should be available in all sensible implementations, see:

http://www.w3.org/TR/xquery-operators/#flags

> Another option would be to use a range with all Unicode characters,
> but obviously we can't either because we can't specify the lower
> bound as it would be an invalid XML character.

Yes, that's another possibility.

> So I think your solution ("." + a bit about . including \r\n) is the
> best Jirka.

+1

Yves, will you please implement this change in spec as you were
authoring this data category?

    Jirka

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