Command Return Value
Each command executed returns a numeric value. For some commands, such as Search( ), this value indicates whether the command succeeded. The only purpose for some commands, such as File_Size, is to return status information. Most commands simply return "1".
The "COMMAND:" prompt has a handy on-line calculator feature that evaluates any numeric expression that you enter. It can also display the return value from any command.
- 12000/25+123
- Evaluate the numeric expression and display the answer in decimal.
- $ 12000/25+123
- Evaluate the numeric expression and display the answer in hexadecimal.
- . File_Size
- Display the current file's size in decimal.
The special operator "." forces VEDIT to display the following numeric expression in decimal; if it is a command, it displays the command's return value. For commands that do nothing but return a value, such as File_Size, the "." is not necessary, but in general it is.
The special operator "$" forces VEDIT to display the following numeric expression in hexadecimal.