1范围和应用领域本技术报告通过提供额外的教程信息来补充ISO 8879。本标准无意也不应被视为ISO 8879的扩展、修改或解释。SGML语言包含许多组件，其中一些是可选功能。教程信息仅涵盖该语言的主要组成部分；值得注意的是，关于LINK、CONCUR和DATATAG的讨论超出了本技术报告的范围。目标受众主要是已经熟悉SGML基本概念的文档类型设计人员，但需要更多关于将SGML用于各种应用程序的技术的教程信息。第5.3款和第8.4款以“用户指南”的形式编写，可作为最终目的的依据- 用户文档。有关SGML的入门教程，可以使用ISO 8879的附件。本技术报告包括在编写正式文件类型定义之前对文件进行分析的说明，以及一系列示例。主要示例适用于一般文件类型，正式定义为ISO 8879第E.1条中的示例。其他一些具有一般性的功能包括信件和备忘录、电子表格、数学以及文字和图形的混合。语言应用程序包括斯堪的纳维亚语规则、日语、欧洲多语言文档，以及混合从左到右和从右到左书写的语言文本。注:在本技术报告中，使用了“输入”和“带键盘”等术语。这并不一定意味着标记将由用户显式添加； 对于文本输入，我们希望使用结构化、上下文敏感的编辑器，或者应用程序添加的标记，例如在电子表格交换的情况下。

1Scope and Field of ApplicationThis Technical Report complements ISO 8879 by providing additional tutorial information. It is not intended, and should not be regarded, as an extension, modification, or interpretation of ISO 8879. The SGML language contains a number of components, some of which are optional features. The tutorial information covers the main components of the language only; notably a discussion of LINK, CONCUR, and DATATAG is outside the scope of this Technical Report.The intended audience is mainly document type designers already familiar with the basic concepts of SGML, but requiring more tutorial information on techniques for using SGML for various applications. Subclauses 5.3 and 8.4 are written in the style of a ""User Guide"" and can be used as a basis for end-user documentation. For an introductory tutorial on SGML the annexes of ISO 8879 can be used.This Technical Report includes notes on the analysis of a document prior to the writing of a formal document type definiti on, and a series of examples.The principal example is for a general document type, formally defined as an example in clause E.1 of ISO 8879. Others of a general nature are for letter and memorandum, spreadsheet, mathematics, and the mixing of text and graphics. Those for language applications include Scandinavian rules, Japanese, a European m ultilingual document, and mixing text in languages written from left to right and from right to left.NOTE - Throughout this Technical Report terms like ""is keyed in"", and ""with keyboarding"" are used. This does not necessarily imply that the markup is to be added explicitly by a user; for text entry one would expect structured, context sensitive, editors to be used, or the markup added by application programs, e.g. in the case of interchange of spreadsheets.