•
|
Points marked with a plus sign (+) are option junctions which allow the user to input any one of the commands to the right of the junction. For example:
|
•
|
•
|
means the user can type in ABC or PQR or any command allowed by the syntax given in diagram <dia> or just press Enter to get the default option.
|
•
|
Points marked with an asterisk (*) are loop back junctions. Command options following these may be repeated as required. For example:
|
•
|
means that the user can enter any combination of option1 and/or option2 and/or option3, where the options can be commands, other syntax diagrams, or command arguments.
|