ISO/IEC INTERNATIONAL STANDARD 13250-4 First edition 2009-03-01 Information technology Topic Maps - Part 4: Canonicalization Technologies de I'information - Plans relatifs a des sujets - Partie4:Canonicalisation Reference number ISO/IEC 13250-4:2009(E) IEC @ISO/IEC2009 py IHS under lic Not for Resale ISO/IEC13250-4:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below COPYRIGHTPROTECTEDDOCUMENT @ ISO/IEC2009 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ ISO/IEC 2009 - All rights reserved I without license from IHS Not for Resale ISO/IEC 13250-4:2009(E) Contents Page Foreword.. iv Introduction. 1 Scope.. 2 Normative references.. 3 Canonicalization.... 3.1 Introduction..... 3.2 Notational conventions. 3.3 CxTM document information item.. 3.4 Constructing a representation of a topic map item..... 3.5 Constructing a representation of a topic item.... 3.6 Constructing a representation of the topic name item.. 3.7 Constructing a representation of a variant item... 3.8 Constructing a representation of an occurrence item... 3 3.9 Constructing a representation of an association item... 3.10 Constructing a representation of the association role item.. 3.11 Constructing a representation of the [reifier] property... 3.12 Constructing a representation of the [scope] property.... 3.13 Constructing a representation of the [item identifiers] property.. 5 3.14 Constructing a representation of the [datatype] property.... 3.15 Constructing a representation of the [type] property... 3.16 Constructing a representation of the [value] property... 5 3.17 Constructing a representation of locator values.. 3.18 Normalizing locator values... 3.19 Constructing the number attribute..... 6 3.20 Encoding of string properties.... 3.21 Encoding of positional values.... 3.22 Default property values for element information items. 3.23 Default property values for attribute information items... 4 Canonical sort order... 4.1 Introduction.... 4.2 Information type and basic type sort order. 4.3 Comparison of strings.... 8 4.4 Comparison of sets.... 8 4.5 Comparison order for locators... 8 4.6 Canonical sort order for topic items.... 4.7 Canonical sort order for topic name items.. 4.8 Canonical sort order for variant items. 8 4.9 Canonical sort order for occurrence items.. 4.10 Canonical sort order for association items.. 4.11 Canonical sort order for association role items..... 9 AnnexA(informative)RELAX-NGschemaforCXTM. 10 Bibliography.... @ ISO/IEC 2009 - All riahts reserved ili Copyright International Organization for Standardization ded by IHS under license with IS out license from IHS Not for Resale