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Subject: RE: [xliff] More XLIFF schema changes
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I’m in process of revising the spec to address the ID uniqueness issue. In the midst of the edits, I’ve noticed that the <group> id is an optional attribute. Given that we’re adding a uniqueness constraint for id, shouldn’t it be a required attribute? Is it even possible (in the normative context) to impose a unique constraint on an optional attribute? I think shifting group id to a required attribute would represent a pretty big change, no?
I’m going to publish a new revision to the spec momentarily, and in that version I will leave the group id as optional.
Anyone have thoughts on this issue?
Regards, Tony
-----Original Message-----
All,
Rodolfo pointed out to me that <group id>, <trans-unit id> and <bin-unit id> must be unique within a <file> because they are used to identify the element “within the file”. More specifically, all the <group id> values must be unique within <file> with respect to other <group> tags. All <trans-unit id> and <bin-unit id> values must be unique within <file> with respect to other <trans-unit> or <bin-unit> tags. That is, a <group> and a <trans-unit> may have the same id value, but a <trans-unit> and a <bin-unit> may not have the same id value.
I recommend explicitly stating that the id attribute must be unique (as stated above) in the specification.
With this understanding, the constraints for the xid attribute were also possible.
I haven’t added constraints for the id attribute in inline tags (e.g., g, ph).
I’ve added the constraints to the XLIFF 1.1 strict and XLIFF 1.2 core & strict schemas, which are attached.
Attached is a zip with 3 schema files.
xliff-core-1.2-20060302.xsd
The tool-id attribute was missing from the elements that should have it (except the ‘tool’ tag). Constraints were also added, including group id, trans-unit id, bin-unit id and xid.
xliff-strict-1.1-20060302.xsd
The tool-id attribute was missing from the elements that should have it (except the ‘tool’ tag). Constraints were also added, including group id, trans-unit id, bin-unit id and xid. Deprecated elements and attributes are prohibited.
xliff-strict-1.2-20060302.xsd
The tool-id attribute was missing from the elements that should have it (except the ‘tool’ tag). Constraints were also added, including group id, trans-unit id, bin-unit id and xid. Deprecated elements and attributes are prohibited.
Regards,
Doug Domeny Software Analyst
Ektron, Inc. +1 603 594-0249 x212
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