An Output processor command is preceded by a space and a period (the period is part of the command) followed by the characters that make up the command. The Output processor command ends with a space, another Output processor command, or an attribute mark. The Output processor commands are not shown in the formatted and printed text.
Most Output processor commands have a shortcut syntax. The shortcut is referenced with each command.
Execution of the Output processor commands can be suppressed by utilizing the override character. The default override character is the underscore. When the underscore is placed before the period following the command, the command is not executed but output like normal textual data. To change this character, use the .oc command. If the underscore is to be used in the text, then the override character should be changed.
The margins define the boundaries in which the Output processor places text.