HP 3000 Manual page 247

If a punctuation character precedes the ellipsis, you must use that character as a delimiter
to separate repeated elements. However, if you select only one element, the delimiter is not
required. In the following example, the comma cannot precede the first instance of itemname:
|...| Within syntax statements, a horizontal ellipsis enclosed in parallel vertical lines indicates
that you can select more than one element that appears within the immediately preceding
pair of brackets or braces. However, each element can be selected only one time. In the
following example, you must select ,A or ,B or ,A,B or ,B,A :
{,A}
{,B}|...|
If a punctuation character precedes the ellipsis, you must use that character as a delimiter
to separate repeated elements. However, if you select only one element, the delimiter is not
required. In the following example, you must select A or B or AB or BA. The first element
cannot be preceded by a comma:
{A}
{B}|,...|
... Within examples, horizontal or vertical ellipses indicate where portions of the example are
omitted.
Å Within syntax statements, the space symbol Å shows a required blank. In the following
example, you must separate modifier and variable with a blank:
SET[(modifier )]Å(variable );
underlining User input is underlined. For example:
In a syntax statement, brackets, braces or ellipses are underlined if you must enter them.
For example:
shading Within an example of interactive dialog, shaded characters indicate user input or
responses to prompts. In the following example, OMEGA is the user's response to the
NEW NAME prompt:
The symbol indicates a key on the terminal's keyboard. For example, CTRL indicates
the Control key.
CTRLchar CTRLchar indicates a control character. For example, CTRLY means you have to
[itemname ][,...]
PROMPT?response
COMMAND
[[ParameterA] ] = ParameterB
NEW NAME? OMEGA
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