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  1. Preface
  2. Introduction
  3. Installation
  4. Design
  5. Operation

Syntax

Syntax

A text based Project Definition File (
.sdf
) is used to specify options and parameters which define your Project, clusterings, jobs, logical files, database files and views.
The Project Definition File has the following syntax:
  • Each line is terminated by a newline.
  • Each line has a maximum length of 255 bytes.
  • Lines starting with an asterisk are treated as comments.
  • All characters following two asterisks (**) on a line are treated as comments.
Quoted strings can be continued onto the next line by coding two adjacent string tokens. For example, the
COMMENT=
keyword is another way of defining a comment inside the definition files. If a
COMMENT
field is very long, it could be specified like this:
COMMENT="This is a very long comment that" " continues on the next line."
Some definitions will require the specification of a character such as a filler character. It will be denoted as
<char>
in the following text. The Definition Language permits a
<char>
to be specified in a number of ways:
  • c
    - a printable character
  • "c"
    - the character embedded in double quotes (")
  • numeric(dd)
    - the decimal value dd of the character in the collating sequence
  • numeric(x’hh’)
    - the hexadecimal value (hh) of the character in the collating sequence
Numeric data in the
Project Definition File
may be suffixed by an optional modifier to help specify large numbers:
  • k - units of 1000 (one thousand)
  • m - units of 1000000 (one million)
  • g - units of 1000000000 (one billion)
  • k2 - units of 1024 (base 2 numbers)
  • m2 - units of 1048576
  • g2 - units of 1073741824
The Project Definition File is created using a text editor. Although it is recommended that you begin with one of the example Project definition files supplied in the
dce/tests
subdirectory on the DCE Client. The Project Definition File is then loaded into the DCE Rulebase during the
Project
New step
.
After the initial load, the Project Definition File is maintained using the Project Editor tool in the DCE Console. Refer to the
Editing a Project
section for more details.

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