Blank lines and comments in the RACF parameter library

Blank lines and whole-line-comments are allowed. A whole-line-comment is any line that starts with //, in any column. Specifying a continuation character in a whole-line-comment has no effect; it is treated as part of the comment. A whole-line-comment or blank line may not be specified within a continued command.

Note:

The minus (-) sign is the only continuation character that is supported.

The following are examples of valid whole-line-comments:

```
//This is a comment line
```
```
// This is a comment line //
```

                                    // This is a comment line

The following are examples of incorrect whole-line-comments:

// This is a comment, trailing dash ignored  -
This is treated as a new command, not a continuation of above comment.

TARGET LIST   // This is not a valid comment and will fail

TARGET   -
// This will be treated as part of a TSO command and will be failed when it runs 
   LISTPROTOCOL

When adding comments to a parameter library that is shared among systems of a multisystem node, and some of them are earlier than V2R1, message IRRC003I is issued on those systems for every blank line and whole comment line.

TSO parsing services are used to process the actual commands that are contained within the parameter library. Therefore, you can also use delimiter /* and */ to create comments within a command image, according to the rules enforced by TSO. For more information about using comments in TSO commands, see z/OS TSO/E Command Reference, Chapter 1, TSO/E commands and subcommands.