compile-file and enviornments 2

[Matt Wette]

This pertains to maintaining a symbol table while reading extension languages
using compile-file.  Another solution, maybe preferable, is to detect in the
spec file whether the input is iteractive or a file.  Will the following work?

(define-language nx-javascript
  #:reader      (lambda (p e) (if (eq? e (interaction-enviornment))
                                  (js-stmt-reader p e)
                                  (js-file-reader p e)))
  ...)

Matt