document-start condition?
     local-declaration*
     action+

A rule that allows you to do processing and produce output before the beginning of an XML or SGML document. These rules are to be performed after any process-start rules. document-start rules are performed in the order they appear in the program.

document-start rules are allowed only in aided translation type programs that use up-translate, down-translate, or context-translate. They are equivalent to the processing done before the parse continuation operator (%c or suppress) in a do xml-parse or do sgml-parse.

The following are examples of document-start rules:

  document-start
     output "{\rtf1\mac %n"

  document-start when index isnt open
     open index as file "index.doc"