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-
- ; This file contains some usefull procedures and constants.
-
- ; *********************************************************************
- ; Set amount of memory reserved by LOGO.
- ( system 2 122880 )
-
- ; Scramble random number generater.
- ( seedrand * 100 seconds )
-
- ; Has this file allready been loaded?
- if buriedp "startup-stuff [ unbury :startup-stuff ] [ ]
-
- ; *********************************************************************
- ; Numerical constants.
-
- make "e 2.71828182845904523536
- make "pi 3.14159265358979323846
-
- ; *********************************************************************
- ; all
- ; Output list of all names.
-
- make "all [ procedure [ ] output se namelist burylist ]
-
- ; *********************************************************************
- ; allnames
- ; Output list of names bound to something other than procedures.
-
- make "allnames [
- procedure [ [ ] [ ] [ :scr-n :scr-x :scr-o ] ]
- make "scr-n se burylist namelist
- dowhile
- [ make "scr-x first :scr-n
- make "scr-n bf :scr-n
- if ( or primitivep :scr-x
- procedurep :scr-x
- if > 4 count :scr-x
- [ false ]
- [ = "scr- items 1 4 :scr-x ] )
- [ ]
- [ make "scr-o fput :scr-x :scr-o ] ]
- [ not emptyp :scr-n ]
- output :scr-o ]
-
- ; *********************************************************************
- ; allprocs
- ; Output list of names bound to procedures.
-
- make "allprocs [
- procedure [ [ ] [ ] [ :scr-n :scr-x :scr-o ] ]
- make "scr-n se burylist namelist
- dowhile
- [ make "scr-x first :scr-n
- make "scr-n bf :scr-n
- if procedurep :scr-x
- [ make "scr-o fput :scr-x :scr-o ]
- [ ] ]
- [ not emptyp :scr-n ]
- output :scr-o ]
-
- ; *********************************************************************
- ; edit name
- ; name-list
- ; Edit the contents of named variables. You may replace "qed" with the
- ; name of the text editor of your choice.
-
- make "edit [
- procedure [ [ :scr-n ] ]
- prosave "ram:LOGO-workspace :scr-n
- doscommand [ qed ram:LOGO-workspace ]
- load "ram:LOGO-workspace ]
-
- ; *********************************************************************
- ; end
- ; Closes all files, windows, and screens, returns to toplevel.
-
- make "end [
- procedure [ ]
- while [ not emptyp filelist ] [ close first filelist ]
- while [ not emptyp screenlist ] [ closescreen first screenlist ]
- while [ not emptyp windowlist ] [ closewindow first windowlist ]
- while [ not emptyp system 6 ] [ ( system 5 first system 6 ) ]
- recycle
- toplevel ]
-
- ; *********************************************************************
- ; filter list list
- ; Output list of all items in the second list except the items that are
- ; in the first list.
-
- make "filter [
- procedure [ [ :r :f ] [ ] [ :o ] ]
- while [ not emptyp :f ]
- [ if memberp first :f :r
- [ ]
- [ make "o fput first :f :o ]
- make "f bf :f ]
- output reverse :o ]
-
- ; *********************************************************************
- ; ignore object (...)
- ; Does nothing. Ignores the output of an operation.
-
- make "ignore [ procedure [ [ :i1 ] :i2 ] ]
-
- ; *********************************************************************
- ; initmenu
- ; Set up the command window menus and demons.
-
- make "com-menu [ \ \ \ LOGO\ \ \ \ \
- [ \ Load L ]
- [ \ Save [ \ Names N ]
- [ \ Procs P ]
- [ \ All A ] ]
- [ \ Interrupt I ]
- [ \ Top\ Level T ]
- [ \ End E ]
- [ \ Restart R ]
- [ \ Quit Q ] ]
-
- make "initmenu [
- procedure [ ]
- whenmenu [ domenu getmenu ]
- setmenu @0 :com-menu ]
-
- make "domenu [
- procedure [ [ :scr-menu ] [ ] [ :scr-sub ] ]
- if = @0 first :scr-menu
- [ if = 1 item 2 :scr-menu
- [ do-com-menu :scr-menu ]
- [ if and procedurep "more-menus
- not = 0 item 2 :scr-menu
- [ more-menus :scr-menu ]
- [ ] ] ]
- [ if procedurep "window-menus
- [ window-menus :scr-menu ]
- [ ] ] ]
-
- make "do-com-menu [
- procedure [ [ :scr-menu ] [ ] [ :scr-sub ] ]
- make "scr-sub item 4 :scr-menu
- make "scr-menu item 3 :scr-menu
- cond
- [ [ = 1 :scr-menu ]
- [ pr [ ]
- type "LOADING\ FILE
- make "scr-menu ( filerequest "Load\ File\ \ -\ )
- if emptyp :scr-menu
- [ pr "CANCELED ]
- [ type :scr-menu
- load :scr-menu
- pr "LOADED ]
- type "? ]
- [ = 2 :scr-menu ]
- [ pr [ ]
- type "SAVING\ FILE
- make "scr-menu ( filerequest "Save\ File\ \ -\ )
- if emptyp :scr-menu
- [ pr "CANCELED ]
- [ type :scr-menu
- cond
- [ [ = 1 :scr-sub ] [ prosave :scr-menu names ]
- [ = 2 :scr-sub ] [ prosave :scr-menu procs ]
- [ = 3 :scr-sub ] [ prosave :scr-menu all ] ]
- pr "SAVED ]
- type "? ]
- [ = 3 :scr-menu ] [ interrupt ]
- [ = 4 :scr-menu ] [ toplevel ]
- [ = 5 :scr-menu ] [ end ]
- [ = 6 :scr-menu ] [ restart ]
- [ = 7 :scr-menu ] [ quit ] ] ]
-
- ; *********************************************************************
- ; interupt
- ; A LOGO command shell that may be run from within other procedures.
-
- make "interrupt [
- procedure [ [ ] [ ] [ :scr-list ] ]
- pr "INTERRUPT
- while [ not memberp "cont :scr-list ]
- [ catch "error [
- while [ type "--> make "scr-list rl not memberp "cont :scr-list ]
- [ run :scr-list ]
- stop ]
- poerror ] ]
-
- ; *********************************************************************
- ; link name
- ; Output list of all procedures needed to run the named procedure.
-
- make "link [
- procedure [ [ :proc-name ] [ ] [ :link-list ] ]
- if procedurep :proc-name
- [ make "link-list se :proc-name [ ]
- linksub bf bf thing :proc-name ]
- [ ( pr :proc-name [ is not a procedure ] ) output [ ] ]
- output :link-list ]
-
- make "linksub [
- procedure [ [ :proc-list ] [ ] [ :lfirst ] ]
- if emptyp :proc-list [ stop ] [ ]
- make "lfirst first :proc-list
- cond
- [ [ listp :lfirst ] [ linksub :lfirst ]
- [ procedurep :lfirst ]
- [ if memberp :lfirst :link-list
- [ ]
- [ make "link-list fput :lfirst :link-list
- linksub bf bf thing :lfirst ] ] ]
- linksub bf :proc-list stop ]
-
- ; *********************************************************************
- ; names
- ; Output list of unburied names bound to something other than
- ; procedures.
-
- make "names [
- procedure [ [ ] [ ] [ :scr-n :scr-x :scr-o ] ]
- make "scr-n namelist
- dowhile
- [ make "scr-x first :scr-n
- make "scr-n bf :scr-n
- if ( or primitivep :scr-x
- procedurep :scr-x
- if > 4 count :scr-x
- [ false ]
- [ = "scr- items 1 4 :scr-x ] )
- [ ]
- [ make "scr-o fput :scr-x :scr-o ] ]
- [ not emptyp :scr-n ]
- output :scr-o ]
-
- ; *********************************************************************
- ; procs
- ; Output list of unburied names bound to procedures.
-
- make "procs [
- procedure [ [ ] [ ] [ :scr-n :scr-x :scr-o ] ]
- make "scr-n namelist
- dowhile
- [ make "scr-x first :scr-n
- make "scr-n bf :scr-n
- if procedurep :scr-x
- [ make "scr-o fput :scr-x :scr-o ]
- [ ] ]
- [ not emptyp :scr-n ]
- output :scr-o ]
-
- ; *********************************************************************
- ; prosave file-name name
- ; file-name name-list
- ; Save names, their bindings, and their protection (bury) status to
- ; file.
-
- make "prosave [
- procedure [ [ :scr-fn :scr-n ] [ ] [ :scr-b :scr-fp ] ]
- if listp :scr-n
- [ make "scr-b justburied :scr-n ]
- [ if buriedp :scr-n
- [ make "scr-b se :scr-n [ ] ]
- [ make "scr-b [ ] ] ]
- if emptyp :scr-b
- [ save :scr-fn :scr-n ]
- [ make "scr-fp open :scr-fn
- catch "error
- [ fprint :scr-fp [ ]
- fprint :scr-fp [ ]
- ( fshow :scr-fp "unbury :scr-b )
- fprint :scr-fp [ ]
- fprintout :scr-fp :scr-n
- fprint :scr-fp [ ]
- ( fshow :scr-fp "bury :scr-b )
- fprint :scr-fp [ ] ]
- close :scr-fp ] ]
-
- make "justburied [
- procedure [ [ :scr-n ] [ ] [ :scr-x :scr-o ] ]
- dowhile
- [ make "scr-x first :scr-n
- make "scr-n bf :scr-n
- if buriedp :scr-x
- [ make "scr-o fput :scr-x :scr-o ]
- [ ] ]
- [ not emptyp :scr-n ]
- output :scr-o ]
-
- ; *********************************************************************
- ; restart
- ; Closes windows, screens, and files, erases all but startup-stuff.
- ; Restores LOGO to startup condition.
-
- make "restart [
- procedure [ ]
- setmenu @0 [ ]
- whenclose [ ]
- whenmenu [ ]
- whenmouse [ ]
- whenchar [ ]
- if buriedp "startup-stuff
- [ erase filter :startup-stuff all
- initmenu
- end ]
- [ erase namelist
- erase burylist
- recycle
- toplevel ] ]
-
- ; *********************************************************************
- ; reverse object ( object )
- ; Reverse the order of the items in the object.
-
- make "reverse [
- procedure [ [ :from ] [ :into ] ]
- if emptyp :into
- [ if wordp :from
- [ make "into " ] [ ] ] [ ]
- if emptyp :from
- [ output :into ]
- [ output ( reverse bf :from fput first :from :into ) ] ]
-
- ; *********************************************************************
- ; sort test list
- ; Sort list according to test. Where "test" is the compare operation.
- ; sort "alphap all
- ; sort [ not alphap ] all
-
- make "sort [
- procedure [ [ :comparep :ra ] [ ] [ :n :l :j :ir :i :rra ] ]
- make "comparep ( se [ procedure [ [ :a :b ] ] output ]
- :comparep
- [ :a :b ] )
- make "n count :ra
- make "ra se :ra [ ]
- make "l + 1 int / :n 2
- make "ir :n
- while [ true ]
- [ if > :l 1
- [ make "l - :l 1
- make "rra item :l :ra ]
- [ make "rra item :ir :ra
- repitem :ir :ra item 1 :ra
- make "ir - :ir 1
- if = :ir 1
- [ output fput :rra bf :ra ] [ ] ]
- make "i :l
- make "j * 2 :l
- while [ >= :ir :j ]
- [ if if < :j :ir
- [ comparep item :j :ra item + 1 :j :ra ]
- [ false ]
- [ make "j + 1 :j ] [ ]
- if comparep :rra item :j :ra
- [ repitem :i :ra item :j :ra
- make "i :j
- make "j + :i :j ]
- [ make "j + 1 :ir ] ]
- repitem :i :ra :rra ] ]
-
- ; *********************************************************************
- ; turtle ( bit-planes )
- ; Prepare screen, window, and turtle for simple turtle graphics.
-
- make "turtle [
- procedure [ [ ] [ :d ] ]
- if numberp :d [ ] [ make "d 1 ]
- ( intuition 6 @0 )
- recycle
- make "s1 ( openscreen 3 :d [ turtle ] )
- make "w1 openwindow :s1
- make "t1 openturtle :w1
- setrgb :s1 0 [ 0 0 0 ]
- setrgb :s1 1 [ 14 14 14 ]
- ( intuition 2 @0 0 0 )
- ( intuition 8 @0 550 54 )
- if < 300 peek -2 psum peek 0 :s1 14
- [ ( intuition 1 @0 0 350 ) ]
- [ ( intuition 1 @0 0 150 ) ]
- ( intuition 6 @0 ) ]
-
- ; *********************************************************************
- ; vpr object
- ; Print out contents of lists verticaly.
-
- make "vpr [
- procedure [ [ :l ] [ :i ] ]
- if emptyp :i [ make "i 0 ] [ ]
- repeat :i [ type "\ ]
- if listp :l
- [ pr "[
- while [ not emptyp :l ]
- [ ( vpr first :l + 1 :i )
- make "l bf :l ]
- repeat :i [ type "\ ]
- pr "] ]
- [ pr :l ] ]
-
- ; *********************************************************************
- ; Names defined in this file.
-
- make "startup-stuff [ e pi edit prosave allnames names
- allprocs procs justburied all link linksub ignore
- end reverse filter initmenu domenu do-com-menu interrupt restart
- sort ppr com-menu turtle startup-stuff ]
-
- bury :startup-stuff
-
- ; *********************************************************************
- ; Set up the command window menus and demons.
-
- initmenu
-
-