Copyright © 1992, 1997 International Organization for Standardization. All rights reserved.

This electronic document is for use during development and review of International Standards. Official printed copies of International Standards can be purchased from the ISO and the national standards organization of your country.

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A.1 Introduction

Subclauses:

This normative annex defines the SGML Extended Facilities, a group of extensions to the functionality of SGML that are required for many hypertext and hypermedia applications. These facilities can be used independently of one another and with or without the HyTime facilities described in the body of this International Standard. They are:

  1. A.2 Lexical Type Definition Requirements (LTDR)

    This clause contains the requirements for creating formal definitions of the lexical types used in property sets, lexical type constraints on element attributes and content, queries, and data tokenizer grove construction processes.

  2. A.3 Architectural Form Definition Requirements (AFDR)

    This clause states the requirements for the formal definition of the architectural forms by which an enabling document architecture governs the SGML representation of its documents.

  3. A.4 Property Set Definition Requirements (PSDR)

    This clause contains the requirements for creating formal definitions of the results of a parsing process, known as "property sets". It also describes the basic concepts of "groves", sets of tree structures constructed from the parsing results.

  4. A.5 General Architecture

    This clause defines the architectural forms of the General Architecture, a set of extensions to SGML parsing functionality.

  5. A.6 Formal System Identifier Definition Requirements (FSIDR)

    This clause states the requirements for the formal definition of notations used in system identifiers.

  6. A.7 SGML Property Set

    This clause contains the SGML Property Set Definition Document, including the optional modules for the SGML Extended Facilities.

Applications that support any of these facilities are referred to generically as SGML Extended Facilities applications.

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Copyright © 1992, 1997 International Organization for Standardization. All rights reserved.

This electronic document is for use during development and review of International Standards. Official printed copies of International Standards can be purchased from the ISO and the national standards organization of your country.

HTML generated from the original SGML source using a DSSSL style specification and the SGML output back-end of the JADE DSSSL engine.