2.2.1-13 Standard Delimiter

If command punctuation other than spaces is required, a single standard delimiter symbol should be used for that purpose.

Additional Information:
Command punctuation other than spaces may be required as a delimiter to distinguish optional parameters, or to separate entries in a stacked command. For example, a slash (/) might be a good choice. Whatever symbol is adopted as a delimiter for command entries should preferably be the same as any delimiter that might be used when making data entries. Note, however, that even if some single delimiter is specified for consistent use in command punctuation, command entry will be slower and less accurate than if no delimiter at all were required.