CORBA 2.6.1 Programmer's Reference

...
An ellipsis immediately following a pair of brackets or braces indicates that you
can repeat the enclosed sequence of syntax items any number of times. For
example:
M address-1 [ , new-value ]...
[ - ] {0|1|2|3|4|5|6|7|8|9}...
An ellipsis immediately following a single syntax item indicates that you can
repeat that syntax item any number of times. For example:
"s-char..."
" "
When quotation marks surround a defined syntax symbol (such as a bracket or
brace), they symbolize an actual character that must be entered as shown. For
example:
"[" repetition-constant-list "]"
Other punctuation
Punctuation not previously described (such as parentheses, commas, and
semicolons) must be entered as shown. For example:
error := NEXTFILENAME ( file-name ) ;
LISTOPENS SU $process-name.#su-name
Long Commands
If the syntax of a command is too long to be shown on a single line, each
continuation line is indented three spaces, the first of which is separated from the
preceding line by a blank line. This spacing distinguishes items in a continuation
line from items in a vertical list of selections. For example:
ALTER [ / OUT file-spec / ] CONTROLLER
[ , attribute-spec ]...
New and Changed Information Chapter 1. Core CORBA