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; Part of Scheme 48 1.9. See file COPYING for notices and license.
; Authors: Richard Kelsey, Jonathan Rees, Mike Sperber
; The value of $NOTE-FILE-PACKAGE is called whenever a file is loaded into
; a package. env/debug.scm uses this to associate packages with files so
; that code stuffed to the REPL will be eval'ed in the correct package.
;
; Is there any point in having this be a fluid?
(define $note-file-package
(make-fluid (make-cell (lambda (filename package)
(values)))))
(define (read-forms pathname package script?)
(let* ((filename (namestring pathname #f *scheme-file-type*))
(truename (translate filename))
(port (open-input-file truename))
(reader (package-reader package)))
(dynamic-wind
(lambda ()
(if (not port)
(assertion-violation 'read-forms "attempt to throw back into READ-FORMS")))
(lambda ()
((fluid-cell-ref $note-file-package) filename package)
(let ((o-port (current-noise-port)))
(display truename o-port)
(force-output o-port)
(really-read-forms port reader script?)))
(lambda ()
(close-input-port port)
(set! port #f)))))
(define (really-read-forms port reader script?)
(if script?
(skip-line port))
(let loop ((forms '()))
(let ((form (reader port)))
(if (eof-object? form)
(reverse forms)
(loop (cons form forms))))))
(define (skip-line port)
(let loop ()
(let ((char (read-char port)))
(if (and (not (eof-object? char))
(not (char=? #\newline char)))
(loop)))))
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