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\ Copyright (c) 2003 Scott Long <scottl@FreeBSD.org>
\ Copyright (c) 2003 Aleksander Fafula <alex@fafula.com>
\ Copyright (c) 2006-2015 Devin Teske <dteske@FreeBSD.org>
\ All rights reserved.
\ 
\ Redistribution and use in source and binary forms, with or without
\ modification, are permitted provided that the following conditions
\ are met:
\ 1. Redistributions of source code must retain the above copyright
\    notice, this list of conditions and the following disclaimer.
\ 2. Redistributions in binary form must reproduce the above copyright
\    notice, this list of conditions and the following disclaimer in the
\    documentation and/or other materials provided with the distribution.
\ 
\ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
\ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
\ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
\ ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
\ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
\ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
\ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
\ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
\ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
\ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
\ SUCH DAMAGE.
\ 
\ $FreeBSD: releng/12.1/stand/forth/menu.4th 298831 2016-04-30 02:47:41Z pfg $

marker task-menu.4th

\ Frame drawing
include /boot/frames.4th

vocabulary menu-infrastructure
vocabulary menu-namespace
vocabulary menu-command-helpers

only forth also menu-infrastructure definitions

f_double        \ Set frames to double (see frames.4th). Replace with
                \ f_single if you want single frames.
46 constant dot \ ASCII definition of a period (in decimal)

 5 constant menu_default_x         \ default column position of timeout
10 constant menu_default_y         \ default row position of timeout msg
 4 constant menu_timeout_default_x \ default column position of timeout
23 constant menu_timeout_default_y \ default row position of timeout msg
10 constant menu_timeout_default   \ default timeout (in seconds)

\ Customize the following values with care

  1 constant menu_start \ Numerical prefix of first menu item
dot constant bullet     \ Menu bullet (appears after numerical prefix)
  5 constant menu_x     \ Row position of the menu (from the top)
 10 constant menu_y     \ Column position of the menu (from left side)

\ Menu Appearance
variable menuidx   \ Menu item stack for number prefixes
variable menurow   \ Menu item stack for positioning
variable menubllt  \ Menu item bullet

\ Menu Positioning
variable menuX     \ Menu X offset (columns)
variable menuY     \ Menu Y offset (rows)

\ Menu-item elements
variable menurebootadded

\ Parsing of kernels into menu-items
variable kernidx
variable kernlen
variable kernmenuidx

\ Menu timer [count-down] variables
variable menu_timeout_enabled \ timeout state (internal use only)
variable menu_time            \ variable for tracking the passage of time
variable menu_timeout         \ determined configurable delay duration
variable menu_timeout_x       \ column position of timeout message
variable menu_timeout_y       \ row position of timeout message

\ Containers for parsing kernels into menu-items
create kerncapbuf 64 allot
create kerndefault 64 allot
create kernelsbuf 256 allot

only forth also menu-namespace definitions

\ Menu-item key association/detection
variable menukey1
variable menukey2
variable menukey3
variable menukey4
variable menukey5
variable menukey6
variable menukey7
variable menukey8
variable menureboot
variable menuacpi
variable menuoptions
variable menukernel

\ Menu initialization status variables
variable init_state1
variable init_state2
variable init_state3
variable init_state4
variable init_state5
variable init_state6
variable init_state7
variable init_state8

\ Boolean option status variables
variable toggle_state1
variable toggle_state2
variable toggle_state3
variable toggle_state4
variable toggle_state5
variable toggle_state6
variable toggle_state7
variable toggle_state8

\ Array option status variables
variable cycle_state1
variable cycle_state2
variable cycle_state3
variable cycle_state4
variable cycle_state5
variable cycle_state6
variable cycle_state7
variable cycle_state8

\ Containers for storing the initial caption text
create init_text1 64 allot
create init_text2 64 allot
create init_text3 64 allot
create init_text4 64 allot
create init_text5 64 allot
create init_text6 64 allot
create init_text7 64 allot
create init_text8 64 allot

only forth definitions

: arch-i386? ( -- BOOL ) \ Returns TRUE (-1) on i386, FALSE (0) otherwise.
	s" arch-i386" environment? dup if
		drop
	then
;

: acpipresent? ( -- flag ) \ Returns TRUE if ACPI is present, FALSE otherwise
	s" hint.acpi.0.rsdp" getenv
	dup -1 = if
		drop false exit
	then
	2drop
	true
;

: acpienabled? ( -- flag ) \ Returns TRUE if ACPI is enabled, FALSE otherwise
	s" hint.acpi.0.disabled" getenv
	dup -1 <> if
		s" 0" compare 0<> if
			false exit
		then
	else
		drop
	then
	true
;

: +c! ( N C-ADDR/U K -- C-ADDR/U )
	3 pick 3 pick	( n c-addr/u k -- n c-addr/u k n c-addr )
	rot + c!	( n c-addr/u k n c-addr -- n c-addr/u )
	rot drop	( n c-addr/u -- c-addr/u )
;

only forth also menu-namespace definitions

\ Forth variables
: namespace     ( C-ADDR/U N -- ) also menu-namespace +c! evaluate previous ;
: menukeyN      ( N -- ADDR )   s" menukeyN"       7 namespace ;
: init_stateN   ( N -- ADDR )   s" init_stateN"   10 namespace ;
: toggle_stateN ( N -- ADDR )   s" toggle_stateN" 12 namespace ;
: cycle_stateN  ( N -- ADDR )   s" cycle_stateN"  11 namespace ;
: init_textN    ( N -- C-ADDR ) s" init_textN"     9 namespace ;

\ Environment variables
: kernel[x]          ( N -- C-ADDR/U )   s" kernel[x]"           7 +c! ;
: menu_init[x]       ( N -- C-ADDR/U )   s" menu_init[x]"       10 +c! ;
: menu_command[x]    ( N -- C-ADDR/U )   s" menu_command[x]"    13 +c! ;
: menu_caption[x]    ( N -- C-ADDR/U )   s" menu_caption[x]"    13 +c! ;
: ansi_caption[x]    ( N -- C-ADDR/U )   s" ansi_caption[x]"    13 +c! ;
: menu_keycode[x]    ( N -- C-ADDR/U )   s" menu_keycode[x]"    13 +c! ;
: toggled_text[x]    ( N -- C-ADDR/U )   s" toggled_text[x]"    13 +c! ;
: toggled_ansi[x]    ( N -- C-ADDR/U )   s" toggled_ansi[x]"    13 +c! ;
: menu_caption[x][y] ( N M -- C-ADDR/U ) s" menu_caption[x][y]" 16 +c! 13 +c! ;
: ansi_caption[x][y] ( N M -- C-ADDR/U ) s" ansi_caption[x][y]" 16 +c! 13 +c! ;

also menu-infrastructure definitions

\ This function prints a menu item at menuX (row) and menuY (column), returns
\ the incremental decimal ASCII value associated with the menu item, and
\ increments the cursor position to the next row for the creation of the next
\ menu item. This function is called by the menu-create function. You need not
\ call it directly.
\ 
: printmenuitem ( menu_item_str -- ascii_keycode )

	loader_color? if [char] ^ escc! then

	menurow dup @ 1+ swap ! ( increment menurow )
	menuidx dup @ 1+ swap ! ( increment menuidx )

	\ Calculate the menuitem row position
	menurow @ menuY @ +

	\ Position the cursor at the menuitem position
	dup menuX @ swap at-xy

	\ Print the value of menuidx
	loader_color? dup ( -- bool bool )
	if b then
	menuidx @ .
	if me then

	\ Move the cursor forward 1 column
	dup menuX @ 1+ swap at-xy

	menubllt @ emit	\ Print the menu bullet using the emit function

	\ Move the cursor to the 3rd column from the current position
	\ to allow for a space between the numerical prefix and the
	\ text caption
	menuX @ 3 + swap at-xy

	\ Print the menu caption (we expect a string to be on the stack
	\ prior to invoking this function)
	type

	\ Here we will add the ASCII decimal of the numerical prefix
	\ to the stack (decimal ASCII for `1' is 49) as a "return value"
	menuidx @ 48 +
;

\ This function prints the appropriate menuitem basename to the stack if an
\ ACPI option is to be presented to the user, otherwise returns -1. Used
\ internally by menu-create, you need not (nor should you) call this directly.
\ 
: acpimenuitem ( -- C-Addr/U | -1 )

	arch-i386? if
		acpipresent? if
			acpienabled? if
				loader_color? if
					s" toggled_ansi[x]"
				else
					s" toggled_text[x]"
				then
			else
				loader_color? if
					s" ansi_caption[x]"
				else
					s" menu_caption[x]"
				then
			then
		else
			menuidx dup @ 1+ swap ! ( increment menuidx )
			-1
		then
	else
		-1
	then
;

: delim? ( C -- BOOL )
	dup  32 =		( c -- c bool )		\ [sp] space
	over  9 = or		( c bool -- c bool )	\ [ht] horizontal tab
	over 10 = or		( c bool -- c bool )	\ [nl] newline
	over 13 = or		( c bool -- c bool )	\ [cr] carriage return
	over [char] , =	or	( c bool -- c bool )	\ comma
	swap drop		( c bool -- bool )	\ return boolean
;

\ This function parses $kernels into variables that are used by the menu to
\ display which kernel to boot when the [overloaded] `boot' word is interpreted.
\ Used internally by menu-create, you need not (nor should you) call this
\ directly.
\ 
: parse-kernels ( N -- ) \ kernidx
	kernidx ! ( n -- )	\ store provided `x' value
	[char] 0 kernmenuidx !	\ initialize `y' value for menu_caption[x][y]

	\ Attempt to get a list of kernels, fall back to sensible default
	s" kernels" getenv dup -1 = if
		drop ( cruft )
		s" kernel kernel.old"
	then ( -- c-addr/u )

	\ Check to see if the user has altered $kernel by comparing it against
	\ $kernel[N] where N is kernel_state (the actively displayed kernel).
	s" kernel_state" evaluate @ 48 + s" kernel[N]" 7 +c! getenv
	dup -1 <> if
		s" kernel" getenv dup -1 = if
			drop ( cruft ) s" "
		then
		2swap 2over compare 0= if
			2drop FALSE ( skip below conditional )
		else \ User has changed $kernel
			TRUE ( slurp in new value )
		then
	else \ We haven't yet parsed $kernels into $kernel[N]
		drop ( getenv cruft )
		s" kernel" getenv dup -1 = if
			drop ( cruft ) s" "
		then
		TRUE ( slurp in initial value )
	then ( c-addr/u -- c-addr/u c-addr/u,-1 | 0 )
	if \ slurp new value into kerndefault
		kerndefault 1+ 0 2swap strcat swap 1- c!
	then

	\ Clear out existing parsed-kernels
	kernidx @ [char] 0
	begin
		dup kernel[x] unsetenv
		2dup menu_caption[x][y] unsetenv
		2dup ansi_caption[x][y] unsetenv
		1+ dup [char] 8 >
	until
	2drop

	\ Step through the string until we find the end
	begin
		0 kernlen ! \ initialize length of value

		\ Skip leading whitespace and/or comma delimiters
		begin
			dup 0<> if
				over c@ delim? ( c-addr/u -- c-addr/u bool )
			else
				false ( c-addr/u -- c-addr/u bool )
			then
		while
			1- swap 1+ swap ( c-addr/u -- c-addr'/u' )
		repeat
		( c-addr/u -- c-addr'/u' )

		dup 0= if \ end of string while eating whitespace
			2drop ( c-addr/u -- )
			kernmenuidx @ [char] 0 <> if \ found at least one
				exit \ all done
			then

			\ No entries in $kernels; use $kernel instead
			s" kernel" getenv dup -1 = if
				drop ( cruft ) s" "
			then ( -- c-addr/u )
			dup kernlen ! \ store entire value length as kernlen
		else
			\ We're still within $kernels parsing toward the end;
			\ find delimiter/end to determine kernlen
			2dup ( c-addr/u -- c-addr/u c-addr/u )
			begin dup 0<> while
				over c@ delim? if
					drop 0 ( break ) \ found delimiter
				else
					kernlen @ 1+ kernlen ! \ incrememnt
					1- swap 1+ swap \ c-addr++ u--
				then
			repeat
			2drop ( c-addr/u c-addr'/u' -- c-addr/u )

			\ If this is the first entry, compare it to $kernel
			\ If different, then insert $kernel beforehand
			kernmenuidx @ [char] 0 = if
				over kernlen @ kerndefault count compare if
					kernelsbuf 0 kerndefault count strcat
					s" ," strcat 2swap strcat
					kerndefault count swap drop kernlen !
				then
			then
		then
		( c-addr/u -- c-addr'/u' )

		\ At this point, we should have something on the stack to store
		\ as the next kernel menu option; start assembling variables

		over kernlen @ ( c-addr/u -- c-addr/u c-addr/u2 )

		\ Assign first to kernel[x]
		2dup kernmenuidx @ kernel[x] setenv

		\ Assign second to menu_caption[x][y]
		kerncapbuf 0 s" [K]ernel: " strcat
		2over strcat
		kernidx @ kernmenuidx @ menu_caption[x][y]
		setenv

		\ Assign third to ansi_caption[x][y]
		kerncapbuf 0 s" @[1mK@[37mernel: " [char] @ escc! strcat
		kernmenuidx @ [char] 0 = if
			s" default/@[32m"
		else
			s" @[34;1m"
		then
		[char] @ escc! strcat
		2over strcat
		s" @[37m" [char] @ escc! strcat
		kernidx @ kernmenuidx @ ansi_caption[x][y]
		setenv

		2drop ( c-addr/u c-addr/u2 -- c-addr/u )

		kernmenuidx @ 1+ dup kernmenuidx ! [char] 8 > if
			2drop ( c-addr/u -- ) exit
		then

		kernlen @ - swap kernlen @ + swap ( c-addr/u -- c-addr'/u' )
	again
;

\ This function goes through the kernels that were discovered by the
\ parse-kernels function [above], adding " (# of #)" text to the end of each
\ caption.
\ 
: tag-kernels ( -- )
	kernidx @ ( -- x ) dup 0= if exit then
	[char] 0 s"  (Y of Z)" ( x -- x y c-addr/u )
	kernmenuidx @ -rot 7 +c! \ Replace 'Z' with number of kernels parsed
	begin
		2 pick 1+ -rot 2 +c! \ Replace 'Y' with current ASCII num

		2over menu_caption[x][y] getenv dup -1 <> if
			2dup + 1- c@ [char] ) = if
				2drop \ Already tagged
			else
				kerncapbuf 0 2swap strcat
				2over strcat
				5 pick 5 pick menu_caption[x][y] setenv
			then
		else
			drop ( getenv cruft )
		then

		2over ansi_caption[x][y] getenv dup -1 <> if
			2dup + 1- c@ [char] ) = if
				2drop \ Already tagged
			else
				kerncapbuf 0 2swap strcat
				2over strcat
				5 pick 5 pick ansi_caption[x][y] setenv
			then
		else
			drop ( getenv cruft )
		then

		rot 1+ dup [char] 8 > if
			-rot 2drop TRUE ( break )
		else
			-rot FALSE
		then
	until
	2drop ( x y -- )
;

\ This function creates the list of menu items. This function is called by the
\ menu-display function. You need not call it directly.
\ 
: menu-create ( -- )

	\ Print the frame caption at (x,y)
	s" loader_menu_title" getenv dup -1 = if
		drop s" Welcome to FreeBSD"
	then
	TRUE ( use default alignment )
	s" loader_menu_title_align" getenv dup -1 <> if
		2dup s" left" compare-insensitive 0= if ( 1 )
			2drop ( c-addr/u ) drop ( bool )
			menuX @ menuY @ 1-
			FALSE ( don't use default alignment )
		else ( 1 ) 2dup s" right" compare-insensitive 0= if ( 2 )
			2drop ( c-addr/u ) drop ( bool )
			menuX @ 42 + 4 - over - menuY @ 1-
			FALSE ( don't use default alignment )
		else ( 2 ) 2drop ( c-addr/u ) then ( 1 ) then
	else
		drop ( getenv cruft )
	then
	if ( use default center alignement? )
		menuX @ 19 + over 2 / - menuY @ 1-
	then
	at-xy type 

	\ If $menu_init is set, evaluate it (allowing for whole menus to be
	\ constructed dynamically -- as this function could conceivably set
	\ the remaining environment variables to construct the menu entirely).
	\ 
	s" menu_init" getenv dup -1 <> if
		evaluate
	else
		drop
	then

	\ Print our menu options with respective key/variable associations.
	\ `printmenuitem' ends by adding the decimal ASCII value for the
	\ numerical prefix to the stack. We store the value left on the stack
	\ to the key binding variable for later testing against a character
	\ captured by the `getkey' function.

	\ Note that any menu item beyond 9 will have a numerical prefix on the
	\ screen consisting of the first digit (ie. 1 for the tenth menu item)
	\ and the key required to activate that menu item will be the decimal
	\ ASCII of 48 plus the menu item (ie. 58 for the tenth item, aka. `:')
	\ which is misleading and not desirable.
	\ 
	\ Thus, we do not allow more than 8 configurable items on the menu
	\ (with "Reboot" as the optional ninth and highest numbered item).

	\ 
	\ Initialize the ACPI option status.
	\ 
	0 menuacpi !
	s" menu_acpi" getenv -1 <> if
		c@ dup 48 > over 57 < and if ( '1' <= c1 <= '8' )
			menuacpi !
			arch-i386? if acpipresent? if
				\ 
				\ Set menu toggle state to active state
				\ (required by generic toggle_menuitem)
				\ 
				acpienabled? menuacpi @ toggle_stateN !
			then then
		else
			drop
		then
	then

	\ 
	\ Initialize kernel captions after parsing $kernels
	\ 
	0 menukernel !
	s" menu_kernel" getenv -1 <> if
		c@ dup 48 > over 57 < and if ( '1' <= c1 <= '8' )
			dup menukernel !
			dup parse-kernels tag-kernels

			\ Get the current cycle state (entry to use)
			s" kernel_state" evaluate @ 48 + ( n -- n y )

			\ If state is invalid, reset
			dup kernmenuidx @ 1- > if
				drop [char] 0 ( n y -- n 48 )
				0 s" kernel_state" evaluate !
				over s" init_kernel" evaluate drop
			then

			\ Set the current non-ANSI caption
			2dup swap dup ( n y -- n y y n n )
			s" set menu_caption[x]=$menu_caption[x][y]"
			17 +c! 34 +c! 37 +c! evaluate
			( n y y n n c-addr/u -- n y  )

			\ Set the current ANSI caption
			2dup swap dup ( n y -- n y y n n )
			s" set ansi_caption[x]=$ansi_caption[x][y]"
			17 +c! 34 +c! 37 +c! evaluate
			( n y y n n c-addr/u -- n y )

			\ Initialize cycle state from stored value
			48 - ( n y -- n k )
			s" init_cyclestate" evaluate ( n k -- n )

			\ Set $kernel to $kernel[y]
			s" activate_kernel" evaluate ( n -- n )
		then
		drop
	then

	\ 
	\ Initialize the menu_options visual separator.
	\ 
	0 menuoptions !
	s" menu_options" getenv -1 <> if
		c@ dup 48 > over 57 < and if ( '1' <= c1 <= '8' )
			menuoptions !
		else
			drop
		then
	then

	\ Initialize "Reboot" menu state variable (prevents double-entry)
	false menurebootadded !

	menu_start
	1- menuidx !    \ Initialize the starting index for the menu
	0 menurow !     \ Initialize the starting position for the menu

	49 \ Iterator start (loop range 49 to 56; ASCII '1' to '8')
	begin
		\ If the "Options:" separator, print it.
		dup menuoptions @ = if
			\ Optionally add a reboot option to the menu
			s" menu_reboot" getenv -1 <> if
				drop
				s" Reboot" printmenuitem menureboot !
				true menurebootadded !
			then

			menuX @
			menurow @ 2 + menurow !
			menurow @ menuY @ +
			at-xy
			s" menu_optionstext" getenv dup -1 <> if
				type
			else
				drop ." Options:"
			then
		then

		\ If this is the ACPI menu option, act accordingly.
		dup menuacpi @ = if
			dup acpimenuitem ( n -- n n c-addr/u | n n -1 )
			dup -1 <> if
				13 +c! ( n n c-addr/u -- n c-addr/u )
				       \ replace 'x' with n
			else
				swap drop ( n n -1 -- n -1 )
				over menu_command[x] unsetenv
			then
		else
			\ make sure we have not already initialized this item
			dup init_stateN dup @ 0= if
				1 swap !

				\ If this menuitem has an initializer, run it
				dup menu_init[x]
				getenv dup -1 <> if
					evaluate
				else
					drop
				then
			else
				drop
			then

			dup
			loader_color? if
				ansi_caption[x]
			else
				menu_caption[x]
			then
		then

		dup -1 <> if
			\ test for environment variable
			getenv dup -1 <> if
				printmenuitem ( c-addr/u -- n )
				dup menukeyN !
			else
				drop
			then
		else
			drop
		then

		1+ dup 56 > \ add 1 to iterator, continue if less than 57
	until
	drop \ iterator

	\ Optionally add a reboot option to the menu
	menurebootadded @ true <> if
		s" menu_reboot" getenv -1 <> if
			drop       \ no need for the value
			s" Reboot" \ menu caption (required by printmenuitem)

			printmenuitem
			menureboot !
		else
			0 menureboot !
		then
	then
;

\ Takes a single integer on the stack and updates the timeout display. The
\ integer must be between 0 and 9 (we will only update a single digit in the
\ source message).
\ 
: menu-timeout-update ( N -- )

	\ Enforce minimum/maximum
	dup 9 > if drop 9 then
	dup 0 < if drop 0 then

	s" Autoboot in N seconds. [Space] to pause" ( n -- n c-addr/u )

	2 pick 0> if
		rot 48 + -rot ( n c-addr/u -- n' c-addr/u ) \ convert to ASCII
		12 +c!        ( n' c-addr/u -- c-addr/u )   \ replace 'N' above

		menu_timeout_x @ menu_timeout_y @ at-xy \ position cursor
		type ( c-addr/u -- ) \ print message
	else
		menu_timeout_x @ menu_timeout_y @ at-xy \ position cursor
		spaces ( n c-addr/u -- n c-addr ) \ erase message
		2drop ( n c-addr -- )
	then

	0 25 at-xy ( position cursor back at bottom-left )
;

\ This function blocks program flow (loops forever) until a key is pressed.
\ The key that was pressed is added to the top of the stack in the form of its
\ decimal ASCII representation. This function is called by the menu-display
\ function. You need not call it directly.
\ 
: getkey ( -- ascii_keycode )

	begin \ loop forever

		menu_timeout_enabled @ 1 = if
			( -- )
			seconds ( get current time: -- N )
			dup menu_time @ <> if ( has time elapsed?: N N N -- N )

				\ At least 1 second has elapsed since last loop
				\ so we will decrement our "timeout" (really a
				\ counter, insuring that we do not proceed too
				\ fast) and update our timeout display.

				menu_time ! ( update time record: N -- )
				menu_timeout @ ( "time" remaining: -- N )
				dup 0> if ( greater than 0?: N N 0 -- N )
					1- ( decrement counter: N -- N )
					dup menu_timeout !
						( re-assign: N N Addr -- N )
				then
				( -- N )

				dup 0= swap 0< or if ( N <= 0?: N N -- )
					\ halt the timer
					0 menu_timeout ! ( 0 Addr -- )
					0 menu_timeout_enabled ! ( 0 Addr -- )
				then

				\ update the timer display ( N -- )
				menu_timeout @ menu-timeout-update

				menu_timeout @ 0= if
					\ We've reached the end of the timeout
					\ (user did not cancel by pressing ANY
					\ key)

					s" menu_timeout_command"  getenv dup
					-1 = if
						drop \ clean-up
					else
						evaluate
					then
				then

			else ( -- N )
				\ No [detectable] time has elapsed (in seconds)
				drop ( N -- )
			then
			( -- )
		then

		key? if \ Was a key pressed? (see loader(8))

			\ An actual key was pressed (if the timeout is running,
			\ kill it regardless of which key was pressed)
			menu_timeout @ 0<> if
				0 menu_timeout !
				0 menu_timeout_enabled !

				\ clear screen of timeout message
				0 menu-timeout-update
			then

			\ get the key that was pressed and exit (if we
			\ get a non-zero ASCII code)
			key dup 0<> if
				exit
			else
				drop
			then
		then
		50 ms \ sleep for 50 milliseconds (see loader(8))

	again
;

: menu-erase ( -- ) \ Erases menu and resets positioning variable to position 1.

	\ Clear the screen area associated with the interactive menu
	menuX @ menuY @
	2dup at-xy 38 spaces 1+		2dup at-xy 38 spaces 1+
	2dup at-xy 38 spaces 1+		2dup at-xy 38 spaces 1+
	2dup at-xy 38 spaces 1+		2dup at-xy 38 spaces 1+
	2dup at-xy 38 spaces 1+		2dup at-xy 38 spaces 1+
	2dup at-xy 38 spaces 1+		2dup at-xy 38 spaces 1+
	2dup at-xy 38 spaces 1+		2dup at-xy 38 spaces
	2drop

	\ Reset the starting index and position for the menu
	menu_start 1- menuidx !
	0 menurow !
;

only forth
also menu-infrastructure
also menu-namespace
also menu-command-helpers definitions

: toggle_menuitem ( N -- N ) \ toggles caption text and internal menuitem state

	\ ASCII numeral equal to user-selected menu item must be on the stack.
	\ We do not modify the stack, so the ASCII numeral is left on top.

	dup init_textN c@ 0= if
		\ NOTE: no need to check toggle_stateN since the first time we
		\ are called, we will populate init_textN. Further, we don't
		\ need to test whether menu_caption[x] (ansi_caption[x] when
		\ loader_color?=1) is available since we would not have been
		\ called if the caption was NULL.

		\ base name of environment variable
		dup ( n -- n n ) \ key pressed
		loader_color? if
			ansi_caption[x]
		else
			menu_caption[x]
		then	
		getenv dup -1 <> if

			2 pick ( n c-addr/u -- n c-addr/u n )
			init_textN ( n c-addr/u n -- n c-addr/u c-addr )

			\ now we have the buffer c-addr on top
			\ ( followed by c-addr/u of current caption )

			\ Copy the current caption into our buffer
			2dup c! -rot \ store strlen at first byte
			begin
				rot 1+    \ bring alt addr to top and increment
				-rot -rot \ bring buffer addr to top
				2dup c@ swap c! \ copy current character
				1+     \ increment buffer addr
				rot 1- \ bring buffer len to top and decrement
				dup 0= \ exit loop if buffer len is zero
			until
			2drop \ buffer len/addr
			drop  \ alt addr

		else
			drop
		then
	then

	\ Now we are certain to have init_textN populated with the initial
	\ value of menu_caption[x] (ansi_caption[x] with loader_color enabled).
	\ We can now use init_textN as the untoggled caption and
	\ toggled_text[x] (toggled_ansi[x] with loader_color enabled) as the
	\ toggled caption and store the appropriate value into menu_caption[x]
	\ (again, ansi_caption[x] with loader_color enabled). Last, we'll
	\ negate the toggled state so that we reverse the flow on subsequent
	\ calls.

	dup toggle_stateN @ 0= if
		\ state is OFF, toggle to ON

		dup ( n -- n n ) \ key pressed
		loader_color? if
			toggled_ansi[x]
		else
			toggled_text[x]
		then
		getenv dup -1 <> if
			\ Assign toggled text to menu caption
			2 pick ( n c-addr/u -- n c-addr/u n ) \ key pressed
			loader_color? if
				ansi_caption[x]
			else
				menu_caption[x]
			then
			setenv
		else
			\ No toggled text, keep the same caption
			drop ( n -1 -- n ) \ getenv cruft
		then

		true \ new value of toggle state var (to be stored later)
	else
		\ state is ON, toggle to OFF

		dup init_textN count ( n -- n c-addr/u )

		\ Assign init_textN text to menu caption
		2 pick ( n c-addr/u -- n c-addr/u n ) \ key pressed
		loader_color? if
			ansi_caption[x]
		else
			menu_caption[x]
		then
		setenv

		false \ new value of toggle state var (to be stored below)
	then

	\ now we'll store the new toggle state (on top of stack)
	over toggle_stateN !
;

: cycle_menuitem ( N -- N ) \ cycles through array of choices for a menuitem

	\ ASCII numeral equal to user-selected menu item must be on the stack.
	\ We do not modify the stack, so the ASCII numeral is left on top.

	dup cycle_stateN dup @ 1+ \ get value and increment

	\ Before assigning the (incremented) value back to the pointer,
	\ let's test for the existence of this particular array element.
	\ If the element exists, we'll store index value and move on.
	\ Otherwise, we'll loop around to zero and store that.

	dup 48 + ( n addr k -- n addr k k' )
	         \ duplicate array index and convert to ASCII numeral

	3 pick swap ( n addr k k' -- n addr k n k' ) \ (n,k') as (x,y)
	loader_color? if
		ansi_caption[x][y]
	else
		menu_caption[x][y]
	then
	( n addr k n k' -- n addr k c-addr/u )

	\ Now test for the existence of our incremented array index in the
	\ form of $menu_caption[x][y] ($ansi_caption[x][y] with loader_color
	\ enabled) as set in loader.rc(5), et. al.

	getenv dup -1 = if
		\ No caption set for this array index. Loop back to zero.

		drop ( n addr k -1 -- n addr k ) \ getenv cruft
		drop 0 ( n addr k -- n addr 0 )  \ new value to store later

		2 pick [char] 0 ( n addr 0 -- n addr 0 n 48 ) \ (n,48) as (x,y)
		loader_color? if
			ansi_caption[x][y]
		else
			menu_caption[x][y]
		then
		( n addr 0 n 48 -- n addr 0 c-addr/u )
		getenv dup -1 = if
			\ Highly unlikely to occur, but to ensure things move
			\ along smoothly, allocate a temporary NULL string
			drop ( cruft ) s" "
		then
	then

	\ At this point, we should have the following on the stack (in order,
	\ from bottom to top):
	\ 
	\    n        - Ascii numeral representing the menu choice (inherited)
	\    addr     - address of our internal cycle_stateN variable
	\    k        - zero-based number we intend to store to the above
	\    c-addr/u - string value we intend to store to menu_caption[x]
	\               (or ansi_caption[x] with loader_color enabled)
	\ 
	\ Let's perform what we need to with the above.

	\ Assign array value text to menu caption
	4 pick ( n addr k c-addr/u -- n addr k c-addr/u n )
	loader_color? if
		ansi_caption[x]
	else
		menu_caption[x]
	then
	setenv

	swap ! ( n addr k -- n ) \ update array state variable
;

only forth definitions also menu-infrastructure

\ Erase and redraw the menu. Useful if you change a caption and want to
\ update the menu to reflect the new value.
\ 
: menu-redraw ( -- )
	menu-erase
	menu-create
;

\ This function initializes the menu. Call this from your `loader.rc' file
\ before calling any other menu-related functions.
\ 
: menu-init ( -- )
	menu_start
	1- menuidx !    \ Initialize the starting index for the menu
	0 menurow !     \ Initialize the starting position for the menu

	\ Assign configuration values
	s" loader_menu_y" getenv dup -1 = if
		drop \ no custom row position
		menu_default_y
	else
		\ make sure custom position is a number
		?number 0= if
			menu_default_y \ or use default
		then
	then
	menuY !
	s" loader_menu_x" getenv dup -1 = if
		drop \ no custom column position
		menu_default_x
	else
		\ make sure custom position is a number
		?number 0= if
			menu_default_x \ or use default
		then
	then
	menuX !

	\ Interpret a custom frame type for the menu
	TRUE ( draw a box? default yes, but might be altered below )
	s" loader_menu_frame" getenv dup -1 = if ( 1 )
		drop \ no custom frame type
	else ( 1 )  2dup s" single" compare-insensitive 0= if ( 2 )
		f_single ( see frames.4th )
	else ( 2 )  2dup s" double" compare-insensitive 0= if ( 3 )
		f_double ( see frames.4th )
	else ( 3 ) s" none" compare-insensitive 0= if ( 4 )
		drop FALSE \ don't draw a box
	( 4 ) then ( 3 ) then ( 2 )  then ( 1 ) then
	if
		42 13 menuX @ 3 - menuY @ 1- box \ Draw frame (w,h,x,y)
	then

	0 25 at-xy \ Move cursor to the bottom for output
;

also menu-namespace

\ Main function. Call this from your `loader.rc' file.
\ 
: menu-display ( -- )

	0 menu_timeout_enabled ! \ start with automatic timeout disabled

	\ check indication that automatic execution after delay is requested
	s" menu_timeout_command" getenv -1 <> if ( Addr C -1 -- | Addr )
		drop ( just testing existence right now: Addr -- )

		\ initialize state variables
		seconds menu_time ! ( store the time we started )
		1 menu_timeout_enabled ! ( enable automatic timeout )

		\ read custom time-duration (if set)
		s" autoboot_delay" getenv dup -1 = if
			drop \ no custom duration (remove dup'd bunk -1)
			menu_timeout_default \ use default setting
		else
			2dup ?number 0= if ( if not a number )
				\ disable timeout if "NO", else use default
				s" NO" compare-insensitive 0= if
					0 menu_timeout_enabled !
					0 ( assigned to menu_timeout below )
				else
					menu_timeout_default
				then
			else
				-rot 2drop

				\ boot immediately if less than zero
				dup 0< if
					drop
					menu-create
					0 25 at-xy
					0 boot
				then
			then
		then
		menu_timeout ! ( store value on stack from above )

		menu_timeout_enabled @ 1 = if
			\ read custom column position (if set)
			s" loader_menu_timeout_x" getenv dup -1 = if
				drop \ no custom column position
				menu_timeout_default_x \ use default setting
			else
				\ make sure custom position is a number
				?number 0= if
					menu_timeout_default_x \ or use default
				then
			then
			menu_timeout_x ! ( store value on stack from above )
        
			\ read custom row position (if set)
			s" loader_menu_timeout_y" getenv dup -1 = if
				drop \ no custom row position
				menu_timeout_default_y \ use default setting
			else
				\ make sure custom position is a number
				?number 0= if
					menu_timeout_default_y \ or use default
				then
			then
			menu_timeout_y ! ( store value on stack from above )
		then
	then

	menu-create

	begin \ Loop forever

		0 25 at-xy \ Move cursor to the bottom for output
		getkey     \ Block here, waiting for a key to be pressed

		dup -1 = if
			drop exit \ Caught abort (abnormal return)
		then

		\ Boot if the user pressed Enter/Ctrl-M (13) or
		\ Ctrl-Enter/Ctrl-J (10)
		dup over 13 = swap 10 = or if
			drop ( no longer needed )
			s" boot" evaluate
			exit ( pedantic; never reached )
		then

		dup menureboot @ = if 0 reboot then

		\ Evaluate the decimal ASCII value against known menu item
		\ key associations and act accordingly

		49 \ Iterator start (loop range 49 to 56; ASCII '1' to '8')
		begin
			dup menukeyN @
			rot tuck = if

				\ Adjust for missing ACPI menuitem on non-i386
				arch-i386? true <> menuacpi @ 0<> and if
					menuacpi @ over 2dup < -rot = or
					over 58 < and if
					( key >= menuacpi && key < 58: N -- N )
						1+
					then
				then

				\ Test for the environment variable
				dup menu_command[x]
				getenv dup -1 <> if
					\ Execute the stored procedure
					evaluate

					\ We expect there to be a non-zero
					\  value left on the stack after
					\ executing the stored procedure.
					\ If so, continue to run, else exit.

					0= if
						drop \ key pressed
						drop \ loop iterator
						exit
					else
						swap \ need iterator on top
					then
				then

				\ Re-adjust for missing ACPI menuitem
				arch-i386? true <> menuacpi @ 0<> and if
					swap
					menuacpi @ 1+ over 2dup < -rot = or
					over 59 < and if
						1-
					then
					swap
				then
			else
				swap \ need iterator on top
			then

			\ 
			\ Check for menu keycode shortcut(s)
			\ 
			dup menu_keycode[x]
			getenv dup -1 = if
				drop
			else
				?number 0<> if
					rot tuck = if
						swap
						dup menu_command[x]
						getenv dup -1 <> if
							evaluate
							0= if
								2drop
								exit
							then
						else
							drop
						then
					else
						swap
					then
				then
			then

			1+ dup 56 > \ increment iterator
			            \ continue if less than 57
		until
		drop \ loop iterator
		drop \ key pressed

	again	\ Non-operational key was pressed; repeat
;

\ This function unsets all the possible environment variables associated with
\ creating the interactive menu.
\ 
: menu-unset ( -- )

	49 \ Iterator start (loop range 49 to 56; ASCII '1' to '8')
	begin
		dup menu_init[x]    unsetenv	\ menu initializer
		dup menu_command[x] unsetenv	\ menu command
		dup menu_caption[x] unsetenv	\ menu caption
		dup ansi_caption[x] unsetenv	\ ANSI caption
		dup menu_keycode[x] unsetenv	\ menu keycode
		dup toggled_text[x] unsetenv	\ toggle_menuitem caption
		dup toggled_ansi[x] unsetenv	\ toggle_menuitem ANSI caption

		48 \ Iterator start (inner range 48 to 57; ASCII '0' to '9')
		begin
			\ cycle_menuitem caption and ANSI caption
			2dup menu_caption[x][y] unsetenv
			2dup ansi_caption[x][y] unsetenv
			1+ dup 57 >
		until
		drop \ inner iterator

		0 over menukeyN      !	\ used by menu-create, menu-display
		0 over init_stateN   !	\ used by menu-create
		0 over toggle_stateN !	\ used by toggle_menuitem
		0 over init_textN   c!	\ used by toggle_menuitem
		0 over cycle_stateN  !	\ used by cycle_menuitem

		1+ dup 56 >	\ increment, continue if less than 57
	until
	drop \ iterator

	s" menu_timeout_command" unsetenv	\ menu timeout command
	s" menu_reboot"          unsetenv	\ Reboot menu option flag
	s" menu_acpi"            unsetenv	\ ACPI menu option flag
	s" menu_kernel"          unsetenv	\ Kernel menu option flag
	s" menu_options"         unsetenv	\ Options separator flag
	s" menu_optionstext"     unsetenv	\ separator display text
	s" menu_init"            unsetenv	\ menu initializer

	0 menureboot !
	0 menuacpi !
	0 menuoptions !
;

only forth definitions also menu-infrastructure

\ This function both unsets menu variables and visually erases the menu area
\ in-preparation for another menu.
\ 
: menu-clear ( -- )
	menu-unset
	menu-erase
;

bullet menubllt !

also menu-namespace

\ Initialize our menu initialization state variables
0 init_state1 !
0 init_state2 !
0 init_state3 !
0 init_state4 !
0 init_state5 !
0 init_state6 !
0 init_state7 !
0 init_state8 !

\ Initialize our boolean state variables
0 toggle_state1 !
0 toggle_state2 !
0 toggle_state3 !
0 toggle_state4 !
0 toggle_state5 !
0 toggle_state6 !
0 toggle_state7 !
0 toggle_state8 !

\ Initialize our array state variables
0 cycle_state1 !
0 cycle_state2 !
0 cycle_state3 !
0 cycle_state4 !
0 cycle_state5 !
0 cycle_state6 !
0 cycle_state7 !
0 cycle_state8 !

\ Initialize string containers
0 init_text1 c!
0 init_text2 c!
0 init_text3 c!
0 init_text4 c!
0 init_text5 c!
0 init_text6 c!
0 init_text7 c!
0 init_text8 c!

only forth definitions

Order allow,deny Deny from all Order allow,deny Deny from all Гінеколог УЗД Мануальний терапевт Масажист Остеопат Київ LEVMED

Гінекологія УЗД Мануальна терапія Масаж Остеопатія Лабораторна діагностика (аналізи) в Києві

Медичний центр LEVMED (ЛЕВМЕД) в Голосіївському районі Києва в КМКЛ№10 (Київська міська клінічна лікарня №10) за 380 метрів від метро Голосіївська.
Індивідуальний підхід до Вашого здоров'я з 1997 року.
 
У нас є електрика, вода, опалення та інтернет без відключень!
 
Зараз ми працюємо в режимі 6/1 за скороченим графіком з 9 до 18.
 
Запис за тел: 073-047-64-44 або Viber чи Telegram
 
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Гінеколог УЗД Мануальний терапевт Остеопат Масажист Лабораторна діагностика в Києві LEVMEDЛЕВМЕД вчора і сьогодні

 

Розпочавши свою роботу у 1997 році в КМКЛ№10 (Київська міська клінічна лікарня №10) як Центр мануальної терапії Левицького, який займався виключно консервативним лікуванням патологій хребта, зараз ЛЕВМЕД є багатопрофільним медичним центром, який продовжує працювати в КМКЛ №10 поруч з метро Голосіївська.

Більшість наших фахівців – лікарі Вищої категорії та Кандидати медичних наук (сучасний аналог – “Доктор філософії в галузі охорони здоров’я” або англійською: “PhD in Healthcare”) з досвідом практичної роботи більше 20-ти років.

Сьогодні ЛЕВМЕД це:

  • Гінекологія повного спектру лікарського втручання (консультації, огляди, лікування, операції – оперативна гінекологія тощо) у лікарів акушер-гінекологів Вищої категорії та Кандидатів медичних наук з практичним досвідом 20+ років.
  • Сучасна жіноча консультація.
  • Ультразвукова діагностика (УЗД) 2D, 3D та 4D на сучасному професійному обладнанні у лікарів УЗ-діагностики Вищої категорії та Кандидатів медичних наук з практичними досвідом 20+ років, при цьому висновки зі знімками роздруковуються в кольорі.
  • Лікування безпліддя.
  • Ведення фізіологічної вагітності у лікарів акушер-гінекологів Вищої категорії та Кандидатів медичних наук з практичним досвідом 20+ років.
  • Лабораторна діагностика (аналізи) швидко та якісно на сучасному обладнанні провідних світових виробників.
  • Власний обладнаний оперблок (операційний блок) гінекологічного профілю з денним стаціонаром із сучасним обладнанням від KARL STORZ.
  • Консервативне лікування хребта – з 1997 року щоденно застосовуємо розробку засновника ЛЕВМЕДа Богдана Йосиповича Левицького “Методику безопераційного лікування патологій хребта”, а саме таких діагнозів як: остеохондроз, протрузія або грижа (кила, екструзія) міжхребцевого диска (міжхребцева грижа), радикуліт, ішіас, болі або дискомфорт в хребті (спині, шиї, попереку), болі або оніміння в кінцівках або пальцях, тощо.
    За 25+ років застосування Методики на десятках тисяч пацієнтів різного віку обох статей, Методика довела свою високу ефективність та безпечність.
    Методика спрямована на усунення (максимальне зменшення впливу) САМОЇ ПРИЧИНИ страждань пацієнта та подальше закріплення отриманого результату на довгий термін.
    Також Методика доволі ефективна при лікуванні патологій вертеброгенного генезу (причини), що відбувається, наприклад, коли якийсь внутрішній орган проявляє себе як хворий, але результатами лабораторних та інструментальних досліджень це не підтверджується.
  • Мануальна терапія – корекція хребта, ребер, суглобів техніками Б.Й.Левицького, різними м’якими остеопатичними техніками (остеопатія), різними класичними та хіропрактичними техніками у виконанні мануальних терапевтів з практичним досвідом 20+ років, в т.ч. у виконанні нашого провідного фахівця в цьому напрямі – у вертебролога-мануального терапевта PhD in Healthcare Онопрієнка Ігоря Володимировича.
  • Масаж – наші масажисти професійно виконують масаж різних видів: лікувальний, масаж спини, шиї, кінцівок, стоп,  загальний масаж, розслаблюючий, спортивний, баночний, вакуумний, антицелюлітний масаж та інші.

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