With PEEK/FORMAT on VAX, a full, new, output screen is appended
   to the formatted output file whenever any one of the following
   conditions occurs:

     1.  A clear-screen sequence in found in the input file.
     2.  A selective-erase sequence in found in the input file.
     3.  The screen is cleared because the screen width is changed.
     4.  Enough lines are scrolled on the screen that some are about
         to be lost off of the top or bottom of the screen.
     5.  /CURSOR_FLUSH was specified as a negative number and the
         cursor moves up more than the specified number of lines.
     6.  /CURSOR_FLUSH was specified as a positive number and the
         cursor is positioned to the specified line number.

   These latter two options can be useful for formatting output from
   programs which don't erase the screen, but just re-position the
   cursor and overwrite existing text.

   The output file format may be varied to take advantage of several
   different printer formats. The default output format is plain text,
   but other formats are available which will display bolded and
   underlined sequences as they originally appeared in the file.

   The following PRINTER_TYPE keywords are currently defined on VAX
   for use with the /PRINTER_TYPE=keyword qualifier:

      FILE        - For plain text into file (this is the default).
      VT100       - For paged output to a VTxxx type terminal.
      DUMB_BS     - Overprint BOLD & underline using backspace.
      DUMB_CR     - Overprint BOLD & underline using carriage-returns.
      LA100, LA120, LA180, LA210, LA50, LA75, LN03,
      VT200, VT300, VT400

   The output file will have form-feed characters inserted at the page
   breaks.

   By default these form-feeds are inserted on a separate line, but
   one can get the form-feeds appended to the last line of text on a
   page by using the /[NO]CONTINUOUS_PAGES qualifier. This could be
   useful when one wants to use all lines of a page, but the form-
   feed on a separate line would cause a page to be skipped between
   each page of text.