scratch/edwin/ansi.scm

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#| -*-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.
|#
;;;; Hard-coded ANSI terminal type for lack of termcap on DOS/NT
(define (make-ansi-terminal-description columns lines)
(define (get-numstring base-name)
(or (get-environment-variable (string-append "EDWIN_" base-name))
(get-environment-variable base-name)))
(define (valid-mode? color-string)
(and (string? color-string)
(= (string-length color-string) 2)
(member (string-ref color-string 0)
'(#\3 #\4))
(member (string-ref color-string 1)
'(#\0 #\1 #\2 #\3 #\4 #\5 #\6 #\7))))
(define (invert-mode color-string)
(make-mode (string (if (eqv? (string-ref color-string 0) #\3)
#\4
#\3)
(string-ref color-string 1))))
(define (make-mode color-string)
(or (and (valid-mode? color-string)
(string-append ";" color-string))
""))
(let ((foregnd (get-numstring "FOREGROUND"))
(backgnd (get-numstring "BACKGROUND")))
(let ((full? (not (eq? 'DOS microcode-id/operating-system)))
(normal
(string-append "\033[0"
(make-mode foregnd)
(make-mode backgnd)
"m"))
(standout
(if (or (not (valid-mode? foregnd)) (not (valid-mode? backgnd)))
(string-append "\033[7"
(make-mode foregnd)
(make-mode backgnd)
"m")
(string-append "\033[0"
(invert-mode backgnd)
(invert-mode foregnd)
"m"))))
(%make-termcap-description
"ansi.sys" ; terminal-type-name
false ; delete-is-insert-mode?
false ; enter/exit-standout-mode-same?
(and full? "\033[P") ; insert/delete-char-ok?
(and full? "\033[M") ; insert/delete-line-ok?
false ; scroll-region-ok?
#t ; tf-automatic-wrap
false ; tf-cursor-backwards-wrap
false ; tf-generic
false ; tf-hardcopy
false ; tf-hazeltine
false ; tf-insert-mode-motion
false ; tf-lose-wrap
false ; tf-magic-wrap
false ; tf-memory-above-screen
false ; tf-memory-below-screen
false ; tf-meta-key
false ; tf-must-write-spaces
false ; tf-newline-doesnt-scroll
false ; tf-overstrike
false ; tf-overstrike-space-erase
false ; tf-overwrite-preserves-standout
false ; tf-standout-mode-motion
false ; tf-teleray
false ; tf-underscore
false ; tn-memory-lines
false ; tn-minimum-padding-speed
false ; tn-standout-marker-width
columns ; tn-x-size
lines ; tn-y-size
"\a" ; ts-audible-bell
"\033[K" ; ts-clear-line
false ; ts-clear-multi-char
"\033[H\033[J" ; ts-clear-screen
"\033[J" ; ts-clear-to-bottom
"\n" ; ts-cursor-down
false ; ts-cursor-down-multi
"\b" ; ts-cursor-left
false ; ts-cursor-left-multi
"\r" ; ts-cursor-line-start
false ; ts-cursor-lower-left
"\033[%i%d;%dH" ; ts-cursor-move
false ; ts-cursor-move-x
"\033[C" ; ts-cursor-right
(and full? "\033[%dC") ; ts-cursor-right-multi
"\033[A" ; ts-cursor-up
(and full? "\033[%dA") ; ts-cursor-up-multi
"\033[H" ; ts-cursor-upper-left
(and full? "\033[P") ; ts-delete-char
(and full? "\033[M") ; ts-delete-line
(and full? "\033[%dP") ; ts-delete-multi-char
(and full? "\033[%dM") ; ts-delete-multi-line
false ; ts-enhance-cursor
false ; ts-enter-delete-mode
false ;"\033[4h" ; ts-enter-insert-mode
standout;"\033[7m" ; ts-enter-standout-mode
(and full? "\033[1p") ; ts-enter-termcap-mode
false ; ts-exit-delete-mode
false ;"\033[4l" ; ts-exit-insert-mode
normal;"\033[0m" ; ts-exit-standout-mode
(and full? "\033[0p") ; ts-exit-termcap-mode
"\n" ; ts-forward-scroll
false ; ts-forward-scroll-multi
(and full? "\033[@") ; ts-insert-char
(and full? "\033[L") ; ts-insert-line
(and full? "\033[%d@") ; ts-insert-multi-char
(and full? "\033[%dL") ; ts-insert-multi-line
false ; ts-invisible-cursor
false ; ts-normal-cursor
false ; ts-pad-char
false ; ts-pad-inserted-char
false ; ts-reverse-scroll
false ; ts-reverse-scroll-multi
false ; ts-set-scroll-region
false ; ts-set-scroll-region-1
false ; ts-set-window
false ; ts-visible-bell
'() ; termcap-description-keys
))))