Tiêu chuẩn quốc tế

Số hiệu

Standard Number

ANSI X3/TR-10:1995
Năm ban hành 1995

Publication date

Tình trạng A - Còn hiệu lực

Status

Tên tiếng Anh

Title in English

Information Processing Systems Technical Report Part Programming Language Tutorial for American National Standard APT Language as Defined by ANSI X3 - 37-1995
Thay thế cho

Replace

ANSI X3/TR-10:1990
Số trang

Page

238
Giá:

Price

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Scope of standard

OVERVIEW

The purpose of this technical report is to serve as a tutorial
for American National Standard APT (ANSI X3.37:199X). Since ANSI
X3.37:199X is designed to be a rigorous definition of the APT
language, Technical Committee X3J7 created this technical report to
illustrate the standard in a more conventional form for both
implementors and users. The rigorous metalinguistic style of
presenting APT syntax and semantics of the standard has been edited
into the style commonly found in published documents of existing
systems, In addition, the elements common to a function or area of
language, grouped in the Standard as a modular feature, have been
collected into appropriate chapters. Although the tutorial is
consistent with the standard, it is not intended to be as rigorous
or complete as the standard. Therefore, it is important to remember
that an APT processor is not necessarily in conformance with the
standard simply by performing as implied in this tutorial; that is,
if there appears to be a conflict, the Standard is definitive.

Chapter 2, The Metalanguage, expands on the description of the
metalanguage provided in the standard and is helpful reading for
any serious users, implementors, and developers of ANSI
X3.37:199)(. Although the basic metalanguage technique has remained
constant since the original standard and is expected to be retained
in the future, it is anticipated that there will be continued
improvement in the presentation of the language used to define APT.
It would help any reviewer to read this chapter to better
understand the standard. Technical Committee X3J7 suggests that any
person who formally asks for an interpretation of ANSI X3.37:199
read this chapter of the tutorial.

The chapters on language are tutorials to aid in understanding
the language in ANSI X3.37:199 X, not to tutor the part programmer
in learning how to use the language. The examples demonstrate
practical use of the language. Any extent to which the tutorials
aid part programmers in understanding the meaning of American
National Standard APT language will enhance their ability to
program with skill. Teachers and writers of APT user documentation
are expected to respect the copyright of this X3 Technical
Report.

Each chapter on language is typically organized to cover a body
of closely related language, which may or may not be a complete
modular feature, and is designed to be complete within itself. When
a given body of language is undergoing active development or
revision, new or revised tutorial chapters can be expected in
future tutorials. This tutorial can be expected to be maintained
concurrently with the developing language standard.