The following conventions are used in these topics to describe the syntax of Interface Definition Language (IDL) as specified by the CORBA standard:
bold | Indicates literals (such as keywords) |
variable | Indicates user-supplied elements |
{ } | Groups related items together as a single item |
[ ] | Encloses an optional item |
* | Indicates zero or more repetitions of the preceding item |
+ | Indicates one or more repetitions of the preceding item |
| | Separates alternatives |
_ | Within a set of alternatives, an underscore indicates the default, if defined |