2021-04-26 07:53:20 -04:00
|
|
|
|
#| -*-Scheme-*-
|
|
|
|
|
|
|
|
|
|
Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
|
|
|
|
|
1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
|
|
|
|
|
2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
|
|
|
|
|
2017, 2018, 2019, 2020 Massachusetts Institute of Technology
|
|
|
|
|
|
|
|
|
|
This file is part of MIT/GNU Scheme.
|
|
|
|
|
|
|
|
|
|
MIT/GNU Scheme is free software; you can redistribute it and/or modify
|
|
|
|
|
it under the terms of the GNU General Public License as published by
|
|
|
|
|
the Free Software Foundation; either version 2 of the License, or (at
|
|
|
|
|
your option) any later version.
|
|
|
|
|
|
|
|
|
|
MIT/GNU Scheme is distributed in the hope that it will be useful, but
|
|
|
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
|
|
General Public License for more details.
|
|
|
|
|
|
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
|
|
|
along with MIT/GNU Scheme; if not, write to the Free Software
|
|
|
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301,
|
|
|
|
|
USA.
|
|
|
|
|
|
|
|
|
|
|#
|
|
|
|
|
|
|
|
|
|
;;;; Runtime-system adapters
|
|
|
|
|
;;; package: (edwin adapters)
|
|
|
|
|
|
|
|
|
|
;;; This file contains adapters that bridge between Edwin and the runtime
|
|
|
|
|
;;; system. These are necessary because Edwin has assumptions about the
|
|
|
|
|
;;; behavior of the runtime system that are no longer valid. Since some of
|
|
|
|
|
;;; these assumptions are deeply rooted, it's easier to adapt around them rather
|
|
|
|
|
;;; than rewrite Edwin.
|
|
|
|
|
|
|
|
|
|
;;; The most critical assumption is that Edwin relies on an older model of
|
|
|
|
|
;;; strings, in which each character is a byte, and the default coding is ISO
|
|
|
|
|
;;; 8859-1, while the runtime system now supports full Unicode and uses a
|
|
|
|
|
;;; default coding of UTF 8. Most of that is taken care of by the (edwin
|
|
|
|
|
;;; string) package, which contains a copy of the runtime's old string
|
|
|
|
|
;;; implementation. Other things, like file I/O, are handled here.
|
|
|
|
|
|
2021-04-26 07:57:47 -04:00
|
|
|
|
|
2021-04-26 07:53:20 -04:00
|
|
|
|
|
|
|
|
|
(define (call-with-file-adapter procedure)
|
|
|
|
|
(lambda (pathname receiver)
|
|
|
|
|
(procedure pathname
|
|
|
|
|
(lambda (port)
|
|
|
|
|
(port/set-coding port 'iso-8859-1)
|
|
|
|
|
(receiver port)))))
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(define edwin:call-with-append-file
|
|
|
|
|
(call-with-file-adapter call-with-append-file))
|
|
|
|
|
|
|
|
|
|
(define edwin:call-with-input-file
|
|
|
|
|
(call-with-file-adapter call-with-input-file))
|
|
|
|
|
|
|
|
|
|
(define edwin:call-with-output-file
|
|
|
|
|
(call-with-file-adapter call-with-output-file))
|
|
|
|
|
|
|
|
|
|
(define char-set:graphic
|
|
|
|
|
(char-set-union (ucs-range->char-set #x20 #x7F)
|
2021-04-26 07:57:47 -04:00
|
|
|
|
(ucs-range->char-set #xA0 #x100)))
|