A second format

Figure 1 shows a format required by some system commands including DISPLAY PROD, DISPLAY PROG, and SETPROG.
Figure 1. System command format required for some commands
The image depicts the command format required by some system commands.
The following command format is depicted in Figure 1:
  1. Optional command prefixes or blanks
  2. Command
  3. One or more blanks
  4. Optional comments, and optional commas between operands: [operand[comments]...]
  5. One optional blank
  6. Optional comments with optional embedded blanks: [comments]
This second format provides the opportunity to include a comment after the command and each operand within the command. These restrictions apply:
  1. You may, but do not have to use a comma between operands. Examples:
    D PROG APF
    D PROG,APF
  2. This format requires that each comment be contained between a slash-asterisk and asterisk-slash pair. Comments may contain embedded blanks. Examples:
    D PROG APF /* comments */
    D PROG /*comment */ APF /* comment */