[OASIS Issue Tracker] Commented: (OFFICE-3440) ODF 1.2 CD05 Part 1Needs anyIRI datatype

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    [ http://tools.oasis-open.org/issues/browse/OFFICE-3440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=21801#action_21801 ] 

Michael Brauer commented on OFFICE-3440:
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Dennis:

Regarding: "In effect, this proposal IMPLEMENTS what Draft XSD 1.1 says we can do"

Your proposal says:

"A valid anyIRI value is an anyURI value that conforms to the definition of IRI reference in [RFC3987]."

XSD 1.1.says:

"The value space of anyURI is the set of finite-length sequences of zero or more characters (as defined in [XML]) that - match- the Char production from [XML]." 

and

"Each URI scheme imposes specialized syntax rules for URIs in that scheme, including restrictions on the syntax of allowed fragment identifiers. Because it is impractical for processors to check that a value is a context-appropriate URI reference, neither the syntactic constraints defined by the definitions of individual schemes nor the generic syntactic constraints defined by [RFC 3987] and [RFC 3986] and their successors are part of this datatype as defined here. Applications which depend on anyURI values being legal according to the rules of the relevant specifications should make arrangements to check values against the appropriate definitions of IRI, URI, and specific schemes." 

So, I read the XSD specification as that it says that it is not possible for a consumer to check the IRI constrains.

But we are discussing this somehow in circles. We should get other views on this.



> ODF 1.2 CD05 Part 1 Needs anyIRI datatype
> -----------------------------------------
>
>                 Key: OFFICE-3440
>                 URL: http://tools.oasis-open.org/issues/browse/OFFICE-3440
>             Project: OASIS Open Document Format for Office Applications (OpenDocument) TC
>          Issue Type: Sub-task
>          Components: Needs Discussion, Part 1 (Schema), Schema and Datatypes
>    Affects Versions: ODF 1.2 CD 05
>            Reporter: Dennis Hamilton
>             Fix For: ODF 1.2 CD 06
>
>
> The rules for IRI references are slightly different than the rules for anyURI.  In particular, anyURI accepts ASCII characters that are excluded from IRI references by [RFC3987].
> Rather than qualify the use of anyURI to be specific to IRIs every place that anyURI is used in the current schema, it is recommended that this be handled in one place by introducing an anyIRI datatype that is  derivative of anyURI with an additional pattern constraint that eliminates the ASCII-corresponding characters that are excluded from IRI references in [RFC3987].

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