| Convention |
Meaning |
| | |
Choose one of the listed commands. (| means "or".) |
| [ ] |
Brackets are used when describing parts of a command that are optional. Be careful to distinguish between brackets used in command descriptions and brackets used by Tcl that evaluate expressions. |
| { } |
Braces are used when describing parts of a command where you must choose one of the options. |
| arguments |
Within a command description, text in italic represent information you type. Elsewhere, italic is used for emphasis. You will not have any problems distinguishing between the uses. |
| Dark text |
Within a command description, dark text represent key words or options that you must type exactly as displayed. Elsewhere, it represents words that are used in a programmatic way rather than their normal way. |
