;;; The packages that scsh uses/defines.
;;; Copyright (c) 1994 by Olin Shivers.

;;; Note: field-reader package (fr.scm) and here docs use READ-LINE.
;;; It is defined in rdelim.scm.

;;; You link up a scsh package by defining a package named OS-DEPENDENT
;;; that satisfies the interfaces for packages
;;;     buffered-io-flags
;;;     posix-fdflags 
;;;     posix-errno
;;;     posix-signals
;;; Anything else it provides should be specified in an interface called
;;; os-extras-interface. See the scsh structure below.
;;; Then the scsh structure can be instantiated.
;;;
;;; The architecture directories, like next/ and irix/ and so forth,
;;; provide packages that can serve as the os-dependent package. E.g.,
;;; the next-defs package, defined in next/packages.
;;;
;;; This whole mechanism would be better solved with a functor.
;;;     -Olin


;;; The LET-OPT package for optional argument parsing & defaulting
;;; is found in the let-opt.scm file.


(define-structure error-package (export error warn)
  (open signals)
;  (optimize auto-integrate)
  )


(define-structure scsh-utilities scsh-utilities-interface
  (open bitwise error-package loopholes let-opt scheme define-record-types 
	records
	threads threads-internal placeholders locks srfi-1)
  (files utilities)
;  (optimize auto-integrate)
  )

(define-structure weak-tables weak-tables-interface
  (open scheme
	weak
	tables)
  (files weaktables))

(define-structure string-collectors string-collectors-interface
  (open scheme
	defrec-package)
  (files stringcoll))

(define-structure delimited-readers delimited-readers-interface
  (open scheme
	byte-vectors
	signals ; ERROR
	let-opt
	receiving
	re-level-0 rx-syntax
	(subset srfi-14 (char-set x->char-set char-set-contains?))
	ascii
	i/o-internal ports)
  (files rdelim))

(define list-lib srfi-1)
(define string-lib srfi-13)
(define char-set-lib srfi-14)


;;; This guy goes into the FOR-SYNTAX part of scsh's syntax exports.
(define-structure scsh-syntax-helpers
  (export transcribe-extended-process-form)
  (open receiving	; receive
	error-package
	names	        ; generated? by JMG
	scsh-utilities	; check-arg
	scheme
	)
  (files syntax-helpers)
;  (optimize auto-integrate)
  )


;;; The bufpol/{block, line, none} values
(define-structure buffered-io-flags buffered-io-flags-interface
  (open defenum-package scheme)
  (files (machine bufpol))
;  (optimize auto-integrate)
  )



(define-structures ((tty-flags tty-flags-interface)
		    (scsh-internal-tty-flags scsh-internal-tty-flags-interface))
  (open scheme ascii bitwise)
  (files (machine tty-consts))
;  (optimize auto-integrate)
  )


(define-structure scsh-version scsh-version-interface
  (open scheme)
  (files scsh-version))

(define-structure scsh-endian scsh-endian-interface
  (open scheme
	bitwise)
  (files endian))

;;; The scsh-level-0 package is for implementation convenience.
;;; The scsh startup and top-level modules need access to scsh
;;; procedures, but they export procedures that are themselves
;;; part of scsh. So scsh-level-0 is the core scsh stuff, which is
;;; imported by these two modules. These modules all collectively
;;; export the whole scsh enchilada.

(define-structures 
  ((scsh-level-0
    (compound-interface posix-fdflags-interface
			posix-errno-interface
			posix-signals-interface
			sockets-network-interface ; Standard Network Interface
			os-extras-interface ; Extra stuff from OS.
			scsh-delimited-readers-interface
			scsh-errors-interface
			scsh-io-interface
			scsh-file-interface
			scsh-process-interface
			scsh-process-state-interface
			scsh-user/group-db-interface
			scsh-command-line-interface
			scsh-signals-interface
			scsh-environment-interface
			scsh-home-interface
			scsh-string-interface
			scsh-file-names-interface
			scsh-misc-interface
			scsh-high-level-process-interface
			scsh-time-interface ; new in 0.2
			scsh-sockets-interface ; new in 0.3
			scsh-endian-interface
			tty-interface ; new in 0.4
			scsh-version-interface
			(interface-of srfi-14) ;; export this here for
			(export ->char-set)    ;; this kludge
			signal-handler-interface
			;; This stuff would probably be better off kept
			;; in separate modules, but we'll toss it in for now.
			(interface-of ascii) ; char<->ascii
			string-ports-interface
			syslog-interface
			crypt-interface
			uname-interface
			))
   (scsh-level-0-internals (export set-command-line-args!
				   init-scsh-hindbrain
				   initialize-cwd
				   init-scsh-vars))
;   (scsh-regexp-package scsh-regexp-interface)
)
  (for-syntax (open scsh-syntax-helpers scheme))
  (access rts-sigevents sigevents threads)
  (open enumerated
	defenum-package
	external-calls           ;JMG new FFI
	structure-refs
	receiving
	defrec-package
	define-record-types
	formats
	string-collectors
	delimited-readers
	os-dependent		; OS dependent stuff
	buffered-io-flags	; stdio dependent
	ascii
	records
	extended-ports
	ports
	build
	bigbit
	bitwise
	signals
	conditions
	(subset srfi-1 (filter reverse! fold delete any))
	scsh-utilities
	handle
	fluids thread-fluids
	weak-tables
        (subset srfi-1 (last drop-right))

	srfi-14
;	scsh-regexp-package
;	scsh-regexp-internals
	scsh-version
	tty-flags
	scsh-internal-tty-flags	; Not exported

	syslog

	let-opt			; optional-arg parsing & defaulting
	
	architecture     ; Was this by JMG ??

	re-level-0
	rx-syntax

	srfi-13

	thread-fluids			; For exec-path-list
	loopholes		; For my bogus CALL-TERMINALLY implementation.

	(modify scheme (hide call-with-input-file
			     call-with-output-file
			     with-input-from-file
			     with-output-to-file
			     open-input-file
			     open-output-file))
			     
	low-interrupt            ; for sighandler and procobj
	;; all these seem to be for scsh-0.6 JMG
	i/o
	i/o-internal
	channels channel-i/o
	low-channels
	byte-vectors
	threads locks placeholders
	primitives
	escapes
	command-levels
	features
	general-tables
	simple-syntax
	exit-hooks
        display-conditions

	scsh-endian)  
  (for-syntax (open scsh-syntax-helpers scheme))
  (access interrupts
	  sort
	  command-processor
	  escapes
	  i/o		; S48's force-output
	  exceptions    ; signal-exception
	  formats
	  threads-internal 
	  records	; I don't think this is necessary. !!!
	  scheme)	; For accessing the normal I/O operators.
  (files syntax
         scsh-condition
	 syscalls
	 fname
	 rw
	 newports
	 fdports
	 procobj		; New in release 0.4.
	 (machine waitcodes)	; OS dependent code.
	 filesys
	 fileinfo
	 glob
	 filemtch
	 time			; New in release 0.2.
	 (machine time_dep)
	 network		; New in release 0.3.
	 flock			; New in release 0.4.
	 tty			; New in release 0.4.
	 pty			; New in release 0.4.
	 sighandlers		; New in release 0.5.
	 scsh
;	 re
	 )
;  (optimize auto-integrate)
  (begin
    ;; work around for SRFI 14 naming fuckage
    (define ->char-set x->char-set))
  )

(define-structure defrec-package (export (define-record :syntax))
  (open records scheme)
  (for-syntax (open scheme error-package receiving))
  (files defrec)
;  (optimize auto-integrate)
  )

(define-structure defenum-package (export (define-enum-constant  :syntax)
					  (define-enum-constants :syntax)
					  (define-enum-constants-from-zero 
					    :syntax))
  (open scheme)
  (files enumconst)
;  (optimize auto-integrate)
  )

;;; This code opens so many modules of gruesome, low-level S48 internals 
;;; that these two modules are segregated into separate packages, each
;;; exporting just two definitions.

(define-structure scsh-startup-package (export dump-scsh-program 
					       dump-scsh
					       make-scsh-starter
					       scsh-stand-alone-resumer)
  (open scsh-level-0-internals	; init-scsh-* set-command-line-args!
	scsh-level-0		; error-output-port command-line-arguments
	scsh-top-package	; parse-switches-and-execute
	handle			; with-handler
	command-levels  	; user-context
	write-images		; write-image
	build-internals		; simple-condition-handler
	low-level		; flush-the-symbol-table!
	command-processor	; command-output
	package-commands-internal
	filenames		; translate
	usual-resumer           ; usual-resumer
	environments            ; with-interaction-environment
	fluids-internal            ; JMG: get-dynamic-env 
	threads threads-internal queues scheduler
	structure-refs
	scsh-utilities
	interrupts
	low-interrupt
	sigevents
	primitives
	(modify scheme (hide call-with-input-file
			     call-with-output-file
			     with-input-from-file
			     with-output-to-file
			     open-input-file
			     open-output-file)))
  (access threads-internal)
  (files startup))

(define-structure scsh-top-package (export parse-switches-and-execute
					   with-scsh-initialized)
  (open command-processor
	command-levels          ; with-new-session
	conditions
        display-conditions
	ensures-loaded
	environments
	error-package
	evaluation
	extended-ports
	fluids
	interfaces
	sigevents                     
	low-interrupt
	fluids-internal            ; JMG: get-dynamic-env 
	handle                     ; JMG: with-handler
;	package-commands
	interrupts
	i/o
	package-commands-internal
	package-mutation
	packages
	receiving
	scsh-version
	scsh-level-0		; with-current-input-port error-output-port
				; with-current-output-port exit
	scsh-level-0-internals	; set-command-line-args! init-scsh-vars
	threads
        lib-dirs
        lib-dirs-internal
	(subset srfi-14 (char-set
			 char-set-complement!
			 char-set-contains?
			 string->char-set))
	root-scheduler          ; scheme-exit-now
	exit-hooks
	scheme)
  (files top meta-arg))

(define-structure exit-hooks exit-hooks-interface
  (open scheme
	threads)
  (begin
    (define *exit-hooks* '())
    (define (add-exit-hook! thunk)
      (set! *exit-hooks* (cons thunk *exit-hooks*)))
    (define (call-exit-hooks!)
      (for-each (lambda (thunk) (thunk)) *exit-hooks*))
    
    (define *narrowed-exit-hooks* '())
    (define (add-narrowed-exit-hook! thunk)
      (set! *narrowed-exit-hooks* (cons thunk *narrowed-exit-hooks*)))
    (define (call-narrowed-exit-hooks!)
      (for-each (lambda (thunk) (thunk)) *narrowed-exit-hooks*))
    
    (define (call-exit-hooks-and-narrow thunk)
      (call-exit-hooks!)
      (narrow
       (lambda ()
	 (call-narrowed-exit-hooks!)
	 (thunk))))))


(define-structure field-reader-package scsh-field-reader-interface
  (open receiving             ; receive
	scsh-utilities          ; deprecated-proc
	error-package		; error
	(subset srfi-13 (string-join))
	(subset srfi-14 (char-set?
			 char-set:whitespace
			 char-set
			 x->char-set
			 char-set-complement))
	delimited-readers
	re-exports
	let-opt			; optional-arg parsing & defaulting
	scheme
	)
  (files fr)
  ;; Handle a little bit of backwards compatibility.
  (begin (define join-strings (deprecated-proc string-join 'join-strings
					       "Use SRFI-13 STRING-JOIN.")))
  )


(define-structures
  ((awk-expander-package (export expand-awk expand-awk/obsolete))
   (awk-support-package (export next-range next-:range
				next-range: next-:range:)))
  (open receiving		; receive
	;; scsh-utilities	
	(subset srfi-1 (any filter))
	error-package		; error
;	scsh-regexp-package
;	re-exports
	sre-syntax-tools
	scheme
	)
  (files awk) 
;  (optimize auto-integrate)
)
	 

(define-structure awk-package awk-interface
  (open awk-support-package	; These packages provide all the stuff 
	re-exports		; that appears in the code produced by 
	receiving		; an awk expansion.
	scheme)
  (for-syntax (open awk-expander-package scheme))
  (begin (define-syntax awk expand-awk)
	 (define-syntax awk/posix-string expand-awk/obsolete)))

;;; Exports an AWK macro that is just AWK/POSIX-STRING.
(define-structure obsolete-awk-package (export (awk :syntax))
  (open awk-package)
  (begin (define-syntax awk 
           (syntax-rules () ((awk body ...) (awk/posix-string body ....))))))

(define-structure scsh
  (compound-interface (interface-of scsh-level-0)
		      (interface-of scsh-startup-package)
;		      scsh-regexp-interface
		      re-exports-interface
		      re-old-funs-interface
		      scsh-field-reader-interface 	; new in 0.3
;		      scsh-dbm-interface
		      awk-interface
		      char-predicates-interface; Urk -- Some of this is R5RS!
		      dot-locking-interface
		      md5-interface
                      configure-interface
                      lib-dirs-interface
		      )

  (open structure-refs
	scsh-level-0
	scsh-level-0-internals
	re-exports
	re-old-funs
;	scsh-regexp-package
	scsh-startup-package
;	dbm
	awk-package
	field-reader-package
	char-predicates-lib	; Urk -- Some of this is R5RS!
	dot-locking
	md5
        configure
        lib-dirs
	scheme)

  (access scsh-top-package)
;  (optimize auto-integrate)
  )

(define-structure scheme-with-scsh
  (compound-interface (interface-of scsh)
		      (interface-of scheme))
  (open scsh
	(modify scheme (hide call-with-input-file
			     call-with-output-file
			     with-input-from-file
			     with-output-to-file
			     open-input-file
			     open-output-file))))

(define-structure scsh-here-string-hax (export)
  (open reading
	receiving
	scsh		; Just need the delimited readers.
	features	; make-immutable!
	(subset srfi-14 (char-set))
	scheme)
  (files here))

(define-structure sigevents sigevents-interface
  (open scsh-level-0
	scheme
	structure-refs
	low-interrupt
	rts-sigevents)
  (files event))

(define-structure simple-syntax (export define-simple-syntax)
  (open scheme)
 (begin (define-syntax define-simple-syntax
	  (syntax-rules ()
			((define-simple-syntax (name . pattern) result)
			 (define-syntax name (syntax-rules () ((name . pattern) result))))))))
	

(define-structure low-interrupt low-interrupt-interface
  (open scheme
	enumerated
	bigbit
	bitwise)
  (files low-interrupt))

;(define-structure test-package (export test-proc)
;  (open scsh-regexp-package scheme)
;  (begin (define (test-proc p)
;	   (regexp-substitute p
;			      (string-match "(foo)(.*)(bar)" "Hello foo Olin bar quux")
;			      'post 3 1 2 'pre))))


(define-structure scsh-threads
  (export fork/thread
	  fork/process
	  wait/thread
	  wait/process)
  (open structure-refs
	scheme)
  (access scsh-level-0
	  threads
	  threads-internal)
  (files threads))

(define-structure dot-locking dot-locking-interface
  (open scsh-level-0
	scheme
	let-opt
	threads  ; sleep
	random)
  (files dot-locking))

(define-structures ((syslog syslog-interface)
		    (syslog-channels syslog-channels-interface))
  (open scheme
	define-record-types finite-types enum-sets
	locks thread-fluids
	external-calls
	bitwise)
  (files syslog))

(define-structure libscsh (export dump-libscsh-image)
  (open scheme
 	external-calls 
 	(subset i/o (current-error-port))
 	(subset extended-ports (make-string-input-port))
 	(subset handle (with-handler))
 	(subset escapes (with-continuation))
	(subset environments (with-interaction-environment))
 	(subset package-commands-internal (user-environment))
 	(subset command-levels (user-context start-new-session))
 	(subset command-processor (user-command-environment))
	(subset scsh-startup-package (dump-scsh-program)))
  (files libscsh))

(define-structure md5 md5-interface
  (open scheme
	ascii
	define-record-types
	bitwise
	(subset i/o (read-block))
	(subset srfi-13 (string-fold-right))
	signals
	external-calls)
  (files md5))

(define srfi-19 (make-srfi-19 scheme-with-scsh))

(define-structure configure configure-interface
  (open scheme
        re-level-0 rx-syntax
        (subset srfi-13 (string-join)))
  (files configure))

(define-structures ((lib-dirs lib-dirs-interface)
                    (lib-dirs-internal lib-dirs-internal-interface))
  (open scsh-level-0
        scheme
        handle
        scsh-utilities
        (subset srfi-1 (any)))
  (files lib-dirs))

(define-structure curses 
    (export init-screen
	    newterm
	    endwin
	    isendwin
	    delscreen
	    unctrl
	    keyname
	    filter
	    use_env
	    putwin
	    getwin
	    delay-output
    	    start-color
	    init-pair
	    flushinp
	    curses-version
	    use-default-colors
	    assume-default-colors
	    define-key
	    baudrate
	    erasechar
	    has_ic
	    has_il
	    killchar
	    longname
	    termname
	    has-key
	    start-color
	    init-pair
	    init-color
	    has-colors
	    can-change-colors
	    color-pair
	    cbreak
	    nocbreak
	    echo
	    noecho
	    halfdelay
	    intrflush
	    keypad
	    meta
	    nodelay
	    raw
	    noraw
	    qiflush
	    noqiflush
	    beep
	    flash
	    def-prog-mode
	    def-shell-mode
	    reset-prog-mode
	    reset-shell-mode
	    resetty
	    savetty
	    curs-set
	    napms
	    mcprint
	    is-term-resized
	    resize-term
	    resizeterm
	    scr-dump
	    scr-restore
	    scr-init
	    scr-set
	    set-term
	    newwin
	    delwin
	    mvwin
	    subwin
	    derwin
	    mvderwin
	    dupwin
	    wsyncup
	    wcursyncup
	    wsyncdown
	    syncok
	    wrefresh
	    wnoutrefresh
	    redrawwin
	    doupdate
	    wredrawln
	    ;;getyx
	    ;;getparyx
	    ;;getbegyx
	    ;;getmaxyx
	    gety
	    getx
	    getmaxy
	    getmaxx
	    wresize
	    idlok
	    leaveok
	    scrollok
	    idcok
	    immedok
	    wsetscrreg
	    nl
	    nonl
	    waddch
	    waddstr
	    waddnstr
	    winsch
	    winsstr
	    winsnstr
	    wechochar
	    wattroff
	    wattron
	    wattrset
	    wstandend
	    wstandout
	    wbkgdset
	    wbkgd
	    getbkgd
	    wborder
	    box
	    whline
	    wvline
	    scroll
	    wscrl
	    wmove
	    wgetch
	    wgetstr
	    wgetnstr
	    winch
	    winstr
	    winnstr
	    werase
	    wclear
	    wclrtobot
	    wclrtoeol
	    clearok
	    wdelch
	    wdeleteln
	    winsertln
	    winsdelln
	    overlay
	    overwrite
	    copywin
	    touchline
	    touchwin
	    untouchwin
	    wtouchln
	    is-linetouched
	    is-wintouched
	    wprintw
	    newpad
	    subpad
	    prefresh
	    pnoutrefresh
	    pechochar
	    standard-screen
	    COLS
	    LINES
	    A-NORMAL
	    A-STANDOUT
	    A-UNDERLINE
	    A-REVERSE
	    A-BLINK
	    A-DIM
	    A-BOLD
	    A-PROTECT
	    A-INVIS
	    A-ALTCHARSET
	    COLOR-BLACK
	    COLOR-RED
	    COLOR-GREEN
	    COLOR-YELLOW
	    COLOR-BLUE
	    COLOR-MAGENTA
	    COLOR-CYAN
	    COLOR-WHITE
	    refresh
	    move
	    setscrreg
	    scrl
	    printw
	    clear
	    addch
	    echochar
	    addstr
	    addnstr
	    insch
	    insstr
	    insnstr
	    printw
	    attroff
	    attron
	    attrset
	    standend
	    standout
	    bkgdset
	    bkgd
	    border
	    hline
	    vline
	    getch
	    getstr
	    getnstr
	    erase
	    clear
	    clrtobot
	    clrtoeol
	    delch
	    deleteln
	    insdelln
	    insertln
	    mvwaddch
	    mvwaddstr
	    mvwaddnstr
	    mvwinsch
	    mvwinsstr
	    mvwinsnstr
	    mvwprintw
	    mvwhline
	    mvwvline
	    mvwgetch
	    mvwgetstr
	    mvwgetnstr
	    mvwdelch
	    set-stdscr-internal
	    set-standard-screen
	    make-window
	    window-c-pointer
	    
	    color-black
	    color-red
	    color-green
	    color-yellow
	    color-blue
	    color-magenta
	    color-cyan
	    color-white

	    key-code-yes
	    key-min
	    key-break
	    key-sreset
	    key-reset
	    key-down
	    key-up
	    key-left
	    key-right
	    key-home
	    key-backspace
	    key-f0
	    key-f1 
	    key-f2
	    key-f3
	    key-f4
	    key-f5
	    key-f6
	    key-f7
	    key-f8
	    key-f9
	    key-f10
	    key-f11
	    key-f12
	    key-dl
	    key-il
	    key-dc
	    key-ic
	    key-eic
	    key-clear
	    key-eos
	    key-eol
	    key-sf
	    key-sr
	    key-npage
	    key-ppage
	    key-stab
	    key-ctab
	    key-catab
	    key-enter
	    key-print
	    key-ll
	    key-a1
	    key-a3
	    key-b2
	    key-c1
	    key-c3
	    key-btab
	    key-beg
	    key-cancel
	    key-close
	    key-command
	    key-copy
	    key-create
	    key-end
	    key-exit
	    key-find
	    key-help
	    key-mark
	    key-message
	    key-move
	    key-next
	    key-open
	    key-options
	    key-previous
	    key-redo
	    key-reference
	    key-refresh
	    key-replace
	    key-restart
	    key-resume
	    key-save
	    key-sbeg
	    key-scancel
	    key-scommand
	    key-scopy
	    key-screate
	    key-sdc
	    key-sdl
	    key-select
	    key-send
	    key-seol
	    key-sexit
	    key-sfind
	    key-shelp
	    key-shome
	    key-sic
	    key-sleft
	    key-smessage
	    key-smove
	    key-snext
	    key-soptions
	    key-sprevious
	    key-sprint
	    key-sredo
	    key-sreplace
	    key-sright
	    key-srsume
	    key-ssave
	    key-ssuspend
	    key-sundo
	    key-suspend
	    key-undo
	    key-mouse
	    key-resize
	    key-event)
  (open scsh-level-0
	scheme
	external-calls
	define-record-types
	conditions
	signals 
	handle)
  (files curses
	 ncurses-constants))