Command Nesting Rules

  1. FONT commands must be specified immediately after PAGEDEF commands.
  2. A SETUNITS command can be specified anywhere in the PPFA command stream and is in effect until another SETUNITS command is specified.
  3. OBJECT commands may appear after the FONT command, before any PAGEFORMAT command (global objects) or after a specific PAGEFORMAT command. A global object is defined for all page formats in the page definition. Otherwise the object is just defined for the PAGEFORMAT in which it is specified.
  4. TRCREF, SEGMENT, and OVERLAY commands must be specified under their associated PAGEFORMAT command.
  5. The first PAGEFORMAT command can be omitted in a page definition, if the page definition has only one page format.
  6. At least one PRINTLINE command is required.