ISO/IEC JTC 1/SC 34N0924

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Information Technology --
Document Description and Processing Languages

TITLE: 13250-6 Topic Maps -- Compact Syntax -- Issues
SOURCE: Mr. Lars Heuer; Mr. Gabriel Hopmans; Dr. Sam Gyun Oh; Mr. Steve Pepper
PROJECT: WD 13250-6: Information technology - Topic Maps - Compact syntax
PROJECT EDITOR: Mr. Lars Heuer; Mr. Gabriel Hopmans; Dr. Sam Gyun Oh; Mr. Steve Pepper
ACTION: Review
DATE: 2007-11-11
DISTRIBUTION: SC34 and Liaisons

Dr. James David Mason
(ISO/IEC JTC 1/SC 34 Chairman)
Y-12 National Security Complex
Bldg. 9113, M.S. 8208
Oak Ridge, TN 37831-8208 U.S.A.
Telephone: +1 865 574-6973
Facsimile: +1 865 574-1896
Network: [email protected]

Mr. G. Ken Holman
(ISO/IEC JTC 1/SC 34 Secretariat - Standards Council of Canada)
Crane Softwrights Ltd.
Box 266,
Telephone: +1 613 489-0999
Facsimile: +1 613 489-0995
Network: [email protected]

CTM - Issues for the ISO meeting Kyoto 2007

Item identifier syntax

For item identifiers a new marker (') was introduced.

Action: Needs approval from WG and TMQL-editors. Related TMQL issue: tmql-item-references

Multiline comments

Multiline comments were introduced (: comment :).

Action: Needs approval from WG and TMQL-editors.

Reifier syntax

CTM uses a tilde (~) to introduce the reifying topic. TMQL uses a slightly different syntax (<~) and uses the tilde as axis shortcut.

Action: Is the difference acceptable?

Template imports

CTM provides a mechanism to import templates. In Montreal was a request to remove this feature and to unify the functionality with the "include" directive. The editors were unable to follow that request because this unification led to problems with "prefix" declarations.

Action: Unification required or is the determination acceptable?

null literal

CTM introduced the null literal again.

Action: The definition / semantics of null must be provided from TMQL. Related TMQL issue: tmql-undef-vs-null

Angle brackets around IRIs

We introduced an "angle brackets" syntax for IRIs.

Action: TMQL should reintroduce IRIs which are embedable into angle brackets. Related TMQL issue: tmql-iri-ambiguity