6.2.1 Top–level program form

The R6RS document specifies a compliant top–level program as:

… a delimited piece of text, typically a file, that has the following form:

?import-form ?top-level-body

so it only specifies that it is “delimited”; it means:

• Any form can come before ?import-form.
• Any form can come after ?top-level-body.
• The delimited sequence can be wrapped into an implementation–defined enclosing form.

Vicare gathers this freedom to accept two formats of top–level programs:

1. The standalone delimited sequence:

   (import ?import-spec ...) ?body ...
   

2. A program form with the following syntax:

   (program ?program-name
     ?config-form ...
     (import ?import-spec ...)
     . ?program-body)
   

where ?program-name is meant to be a descriptive list of symbols and the ?config-form clauses allow additional configuration and behaviour specification.