Air Cleaner User Manual

How to read syntax diagrams
This book contains syntax diagrams (sometimes referred to as “railroad”
diagrams).
Each syntax diagram begins with a double right arrow and ends with a right and
left arrow pair. Lines beginning with a single right arrow are continuation lines.
You read a syntax diagram from left to right and from top to bottom, following the
direction of the arrows.
Other conventions used in syntax diagrams are:
Table 1. How to read syntax diagrams
Convention Meaning

A B C !
You must specify values A, B, and C. Required values are shown on
the main line of a syntax diagram.

A
!
You may specify value A. Optional values are shown below the main
line of a syntax diagram.

A
B
C
!
Values A, B, and C are alternatives, one of which you must specify.

A
B
C
!
Values A, B, and C are alternatives, one of which you may specify.

"
,
A
B
C
!
You may specify one or more of the values A, B, and C. Any required
separator for multiple or repeated values (in this example, the
comma (,)) is shown on the arrow.
Syntax diagrams
Chapter 1. Using MQSeries commands 7