S9 LIB  (print-code string)     ==>  unspecific
        (print-code string #t)  ==>  unspecific

Render Scheme code contained in the file STRING in HTML with
syntax highlighting and optional CSS paren matching.

The CSS2 style sheet "scheme.css" contains the default style for
syntax and expression highlighting. NOTE: This program handles
only a subset of R4RS Scheme correctly. Caveat utilitor.

(print-code "print-code.scm")  ==>  unspecific
