EL-00164-0-0_A_Software_Use_of_the_Graphic_Character_Set_Of_ASCII_Jun81.pdf

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DEC
STANDARD
164
REV. A
GRAPHIC
CHARACTER
SEwr OF
ASCII
DEC STD 164
ll-Jun-81
Page 1
SOP'1WARE USE OF TBL GRAPHIC CHARACTER SET OF ASCII
This standard defines the subset of the ASCII graphic
et,aracter set to used
by
DEC
software products.
This
standard is DEC Standard Category
C,
Reo'ision 0.
!Co.
ORIGINATOR
Lois
Frampton
Software Std.
Dept.
Software Std.
Mgrs. Approval
~~
colfll;li,~i'/
Doculllent Identifier
Size
Code
DM34-001
Page 2
TABLE OF CONTENTS/REVISION STATUS
Title
Title page
Table of Contents/Revision Status
INTRODUCTION
PURPOSE
SCOPE
RESPONSIBILITIES
RE;FERE;NCIW AND RELATED STANDARDS
CONFORMANCE
DEFINITION OF THE STANDARD
GRAPHIC CHARACTERS AND THEIR NMES
GRAPHIC CHARACTERS INCLUDED IN THIS
STANDARD
SPECIAL CASE
OF
THE NUMBER SIGN
Revision
1l~Jun~61
page
,
,.,
1.2
LJ
L<
L5
1l~Jun-61
1l-Jun-61
ll-Jun-61
1l-Jun-61
APPe. DIX A.
...
EXA/'IPLES OF NATIONAL USE POSITIO/:IIS
ll-Jun-8l
page 3
The expansion of DEC's activities
in
the international m<'rketplace
makes it increasingly impon;ant that we
m~nufacture
prOducts that can
be used without extensiv .. adaptation with the various national
character sets and keyboards.
DEC products have traditionally used the entire ASCI!
ch~racter
set
including those cha!'"acte!'" positions rese!'"ved for national use.
In
other countries these characters have different graphics although they
are represented by the same binary code.
Some of them areo used for
alphabetic characters with diacritical marks (in Some countries the
collating sequence is changed as well.)
In addition, the characters
in the ASCII national use positions are the ones least likely to be
found on keyboards manufactured by other vendors.
The purpose of thts standard is to assure ttl",t software products and
doc=erotation can
be
used internationally without modification to the
character set given special semantic meaning in th .. product, e.g. the
character set used as delimiters in a command or programming language.
This standard defines the subset of the ASCII graphic character set
that can
be
assigned specific semantic meaning by DEC
sof~ware
prodUcts.
It also gives the names of the char-acter to be used in
docl.lll\entation.
Th" semantic meaning assigned to the characters is not d .. fined.
The
coding of these characte-s is defined in ANSI :0.4-1977, American
,standard Code for Information Interchange.
--
This standard does not apply to the contents of .lser defined character-
strings, user defined constants or variables, or user defined data.
ThiS standard should be used when implementing
tlew
software products
or when extending existing soft"'are products.
~D~DDOD

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