OSF DCE Administration Guide--Core Components

OSF DCE Administration Guide—Core Components
TABLE A-2. Summary of CDS, GDS, and DNS Characteristics
_________________________________________________________________________
Characteristic CDS GDS DNS
_________________________________________________________________________
_________________________________________________________________________
a to z, A to Z, 0 to 9 plus
space and special
characters shown in
Figure A-1
a to z, A to Z, 0 to 9 plus
.:,’+-=()?/and
space
Character Set a to z, A to Z, 0 to 9 plus . -
_________________________________________________________________________
Metacharacters / * ? \ / , = \ .
_________________________________________________________________________
Restrictions Simple names cannot
begin or end with a /
(slash).
The first simple name
following the global cell
name (or/.: prefix)
cannot contain an =
(equal sign).
When entering a name as
part of a cdscpshow or
list command, you must
use a \ (backslash) to
escape any * (asterisk) or
? (question mark)
character in the
rightmost simple name.
Otherwise, the character
is interpreted as a
wildcard.
Relative distinguished
names cannot begin or
end with a / (slash).
Attribute types must
begin with an alphabetic
character, can contain
only alphanumerics, and
cannot contain spaces.
An alternate method of
specifying attribute types
is by object identifier, a
sequence of digits
separated by . (dots).
You must use a \
(backslash) to escape a /
(slash), a ,(comma), and
an = (equal sign) when
using them as anything
other than
metacharacters.
Multiple consecutive
unescaped occurrences
of / (slashe), , (comma),
= (equal sign) and \
(backslash) are not
allowed.
Each attribute value
assertion contains
exactly one unescaped =
(equal sign).
The first character must be
alphabetic.
The first and last
characters cannot be a .
(dot) or a - (dash).
Cell names in DNS must
contain at least one . (dot);
they must be more than
one level deep.
_________________________________________________________________________
Case-Matching
Rules
Case exact. Attribute types are
matched case insensitive.
The case-matching rule
for an attribute value can
be case exact or case
insensitive, depending
on the rule defined for its
type at the DSA.
Case insensitive.
_________________________________________________________________________
Internal
Representation
Case exact. Depends on the case-
matching rule defined at
DSA. Ifthe rule says
case insensitive,
alphabetic characters are
converted to all
lowercase characters.
Spaces are removed
regardless of the case-
matching rule.
Alphabetic characters are
converted to all lowercase
characters.
_________________________________________________________________________
A−4 Tandem Computers Incorporated 124243