The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/scripts/header.tk

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    1 # FILE: header.tk
    2 # This file is boilerplate TCL/TK function definitions for 'make xconfig'.
    3 #
    4 # CHANGES
    5 # =======
    6 #
    7 # 8 January 1999, Michael Elizabeth Chastain, <mec@shout.net>
    8 # - Remove unused do_cmd function (part of the 2.0 sound support).
    9 # - Arrange buttons in three columns for better screen fitting.
   10 # - Add CONSTANT_Y, CONSTANT_M, CONSTANT_N for commands like:
   11 #     dep_tristate 'foo' CONFIG_FOO m
   12 #
   13 # 23 January 1999, Michael Elizabeth Chastain, <mec@shout.net>
   14 # - Shut vfix the hell up.
   15 #
   16 # 24 January 1999, Michael Elizabeth Chastain, <mec@shout.net>
   17 # - Improve the exit message (Jeff Ronne).
   18 
   19 #
   20 # This is a handy replacement for ".widget cget" that requires neither tk4
   21 # nor additional source code uglification.
   22 #
   23 proc cget { w option } {
   24         return "[lindex [$w configure $option] 4]"
   25 }
   26 
   27 #
   28 # Function to compensate for broken config.in scripts like the sound driver,
   29 # which make dependencies on variables that are never even conditionally
   30 # defined.
   31 #
   32 proc vfix { var } {
   33         global $var
   34         if [ catch {eval concat $$var} ] {
   35                 set $var 4
   36         }
   37 }
   38 
   39 #
   40 # Constant values used by certain dep_tristate commands.
   41 #
   42 set CONSTANT_Y 1
   43 set CONSTANT_M 2
   44 set CONSTANT_N 0
   45 set CONSTANT_E 4
   46 
   47 #
   48 # Create a "reference" object to steal colors from.
   49 #
   50 button .ref
   51 
   52 #
   53 # On monochrome displays, -disabledforeground is blank by default; that's
   54 # bad.  Fill it with -foreground instead.
   55 #
   56 if { [cget .ref -disabledforeground] == "" } {
   57         .ref configure -disabledforeground [cget .ref -foreground]
   58 }
   59 
   60 
   61 #
   62 # Define some macros we will need to parse the config.in file.
   63 #
   64 
   65 proc mainmenu_name { text } {
   66         wm title . "$text"
   67 }
   68 
   69 proc menu_option { w menu_num text } {
   70         global menus_per_column
   71         global processed_top_level
   72         set processed_top_level [expr $processed_top_level + 1]
   73         if { $processed_top_level <= $menus_per_column } then {
   74             set myframe left
   75         } elseif { $processed_top_level <= [expr 2 * $menus_per_column] } then {
   76             set myframe middle
   77         } else {
   78             set myframe right
   79         } 
   80         button .f0.x$menu_num -anchor w -text "$text" \
   81             -command "$w .$w \"$text\""
   82         pack .f0.x$menu_num -pady 0 -side top -fill x -in .f0.$myframe
   83 }
   84 
   85 proc load_configfile { w title func } {
   86         catch {destroy $w}
   87         toplevel $w -class Dialog
   88         global loadfile
   89         frame $w.x
   90         label $w.bm -bitmap questhead
   91         pack  $w.bm -pady 10 -side top -padx 10
   92         label $w.x.l -text "Enter filename:" -relief raised
   93         entry $w.x.x -width 35 -relief sunken -borderwidth 2 \
   94                 -textvariable loadfile
   95         pack $w.x.l $w.x.x -anchor w -side left
   96         pack $w.x -side top -pady 10
   97         wm title $w "$title" 
   98 
   99         set oldFocus [focus]
  100         frame $w.f
  101         button $w.f.back -text "OK" -width 20 \
  102                 -command "destroy $w; focus $oldFocus;$func .fileio"
  103         button $w.f.canc -text "Cancel" \
  104                 -width 20 -command "destroy $w; focus $oldFocus"
  105         pack $w.f.back $w.f.canc -side left -pady 10 -padx 45
  106         pack $w.f -pady 10 -side bottom -padx 10 -anchor w
  107         focus $w
  108         global winx; global winy
  109         set winx [expr [winfo x .]+30]; set winy [expr [winfo y .]+30]
  110         wm geometry $w +$winx+$winy
  111 }
  112 
  113 bind all <Alt-q> {maybe_exit .maybe}
  114 
  115 proc maybe_exit { w } {
  116         catch {destroy $w}
  117         toplevel $w -class Dialog
  118         label $w.bm -bitmap questhead
  119         pack  $w.bm -pady 10 -side top -padx 10
  120         message $w.m -width 400 -aspect 300 \
  121                 -text "Changes will be lost.  Are you sure?" -relief flat
  122         pack  $w.m -pady 10 -side top -padx 10
  123         wm title $w "Are you sure?" 
  124 
  125         set oldFocus [focus]
  126         frame $w.f
  127         button $w.f.back -text "OK" -width 20 \
  128                 -command "exit"
  129         button $w.f.canc -text "Cancel" \
  130                 -width 20 -command "destroy $w; focus $oldFocus"
  131         pack $w.f.back $w.f.canc -side left -pady 10 -padx 45
  132         pack $w.f -pady 10 -side bottom -padx 10 -anchor w
  133         bind $w <Return> "exit"
  134         bind $w <Escape> "destroy $w; focus $oldFocus"
  135         focus $w
  136         global winx; global winy
  137         set winx [expr [winfo x .]+30]; set winy [expr [winfo y .]+30]
  138         wm geometry $w +$winx+$winy
  139 }
  140 
  141 proc read_config_file { w } {
  142         global loadfile
  143         if { [string length $loadfile] != 0 && [file readable $loadfile] == 1 } then {
  144                 read_config $loadfile
  145         } else {
  146                 catch {destroy $w}
  147                 toplevel $w -class Dialog
  148                 message $w.m -width 400 -aspect 300 -text \
  149                         "Unable to read file $loadfile" \
  150                          -relief raised 
  151                 label $w.bm -bitmap error
  152                 pack $w.bm $w.m -pady 10 -side top -padx 10
  153                 wm title $w "Xconfig Internal Error" 
  154 
  155                 set oldFocus [focus]
  156                 frame $w.f
  157                 button $w.f.back -text "Bummer" \
  158                         -width 10 -command "destroy $w; focus $oldFocus"
  159                 pack $w.f.back -side bottom -pady 10 -anchor s
  160                 pack $w.f -pady 10 -side top -padx 10 -anchor s
  161                 focus $w
  162                 global winx; global winy
  163                 set winx [expr [winfo x .]+30]; set winy [expr [winfo y .]+30]
  164                 wm geometry $w +$winx+$winy
  165         }
  166 }
  167 
  168 proc write_config_file  { w } {
  169         global loadfile
  170         if { [string length $loadfile] != 0 
  171                 && ([file writable $loadfile] == 1 || ([file exists $loadfile] == 0 && [file writable [file dirname $loadfile]] == 1)) } then {
  172                 writeconfig $loadfile /dev/null
  173         } else {
  174                 catch {destroy $w}
  175                 toplevel $w -class Dialog
  176                 message $w.m -width 400 -aspect 300 -text \
  177                         "Unable to write file $loadfile" \
  178                          -relief raised 
  179                 label $w.bm -bitmap error
  180                 pack $w.bm $w.m -pady 10 -side top -padx 10
  181                 wm title $w "Xconfig Internal Error" 
  182 
  183                 set oldFocus [focus]
  184                 frame $w.f
  185                 button $w.f.back -text "OK" \
  186                         -width 10 -command "destroy $w; focus $oldFocus"
  187                 pack $w.f.back -side bottom -pady 10 -anchor s
  188                 pack $w.f -pady 10 -side top -padx 10 -anchor s
  189                 focus $w
  190                 global winx; global winy
  191                 set winx [expr [winfo x .]+30]; set winy [expr [winfo y .]+30]
  192                 wm geometry $w +$winx+$winy
  193         }
  194 }
  195 
  196 proc read_config { filename } {
  197         set file1 [open $filename r]
  198         clear_choices
  199         while { [gets $file1 line] >= 0} {
  200                 if [regexp {([0-9A-Za-z_]+)=([ynm])} $line foo var value] {
  201                         if { $value == "y" } then { set cmd "global $var; set $var 1" }
  202                         if { $value == "n" } then { set cmd "global $var; set $var 0" }
  203                         if { $value == "m" } then { set cmd "global $var; set $var 2" }
  204                         eval $cmd
  205                 }
  206                 if [regexp {# ([0-9A-Za-z_]+) is not set} $line foo var] {
  207                         set cmd "global $var; set $var 0"
  208                         eval $cmd
  209                 }
  210                 if [regexp {([0-9A-Za-z_]+)=([0-9A-Fa-f]+)} $line foo var value] {
  211                         set cmd "global $var; set $var $value"
  212                         eval $cmd
  213                 }
  214                 if [regexp {([0-9A-Za-z_]+)="([^"]*)"} $line foo var value] {
  215                         set cmd "global $var; set $var \"$value\""
  216                         eval $cmd
  217                 }
  218         }
  219         close $file1
  220         update_choices
  221         update_mainmenu
  222 }
  223 proc write_comment { file1 file2 text } {
  224         puts $file1 ""
  225         puts $file1 "#"
  226         puts $file1 "# $text"
  227         puts $file1 "#"
  228         puts $file2 "/*"
  229         puts $file2 " * $text"
  230         puts $file2 " */"
  231 }
  232 
  233 proc effective_dep { deplist } {
  234         global CONFIG_MODULES
  235         set depend 1
  236         foreach i $deplist {
  237                 if {$i == 0} then {set depend 0}
  238                 if {$i == 2 && $depend == 1} then {set depend 2}
  239         }
  240         if {$depend == 2 && $CONFIG_MODULES == 0} then {set depend 0}
  241         return $depend
  242 }
  243 
  244 proc sync_tristate { var dep } {
  245         global CONFIG_MODULES
  246         if {$dep == 0 && ($var == 1 || $var == 2)} then {
  247                 set var 0
  248         } elseif {$dep == 2 && $var == 1} then {
  249                 set var 2
  250         } elseif {$var == 2 && $CONFIG_MODULES == 0} then {
  251                 if {$dep == 1} then {set var 1} else {set var 0}
  252         }
  253         return $var
  254 }
  255 
  256 proc sync_bool { var dep modset } {
  257         set var [sync_tristate $var $dep]
  258         if {$dep == 2 && $var == 2} then {
  259                 set var $modset
  260         }
  261         return $var
  262 }
  263 
  264 proc write_tristate { file1 file2 varname variable deplist modset } {
  265         set variable [sync_tristate $variable [effective_dep $deplist]]
  266         if { $variable == 2 } \
  267                 then { set variable $modset }
  268         if { $variable == 1 } \
  269                 then { puts $file1 "$varname=y"; \
  270                        puts $file2 "#define $varname 1" } \
  271         elseif { $variable == 2 } \
  272                 then { puts $file1 "$varname=m"; \
  273                        puts $file2 "#undef  $varname"; \
  274                        puts $file2 "#define ${varname}_MODULE 1" } \
  275         elseif { $variable == 0 } \
  276                 then { puts $file1 "# $varname is not set"; \
  277                        puts $file2 "#undef  $varname"} \
  278         else { \
  279             puts stdout "ERROR - Attempting to write value for unconfigured variable ($varname)." \
  280         }
  281 }
  282 
  283 proc write_int { file1 file2 varname variable dep } {
  284         if { $dep == 0 } \
  285                 then { puts $file1 "# $varname is not set"; \
  286                        puts $file2 "#undef  $varname"} \
  287         else {
  288                 puts $file1 "$varname=$variable"; \
  289                 puts $file2 "#define $varname ($variable)"; \
  290         }
  291 }
  292 
  293 proc write_hex { file1 file2 varname variable dep } {
  294         if { $dep == 0 } \
  295                 then { puts $file1 "# $varname is not set"; \
  296                        puts $file2 "#undef  $varname"} \
  297         else {
  298                 puts $file1 "$varname=$variable"; \
  299                 puts -nonewline $file2 "#define $varname 0x"; \
  300                 puts $file2 [exec echo $variable | sed s/^0\[xX\]//]; \
  301         }
  302 }
  303 
  304 proc write_string { file1 file2 varname variable dep } {
  305         if { $dep == 0 } \
  306                 then { puts $file1 "# $varname is not set"; \
  307                        puts $file2 "#undef  $varname"} \
  308         else {
  309                 puts $file1 "$varname=\"$variable\""; \
  310                 puts $file2 "#define $varname \"$variable\""; \
  311         }
  312 }
  313 
  314 proc option_name {w mnum line text helpidx} {
  315         button $w.x$line.l -text "$text" -relief groove -anchor w
  316         $w.x$line.l configure -activefore [cget $w.x$line.l -fg] \
  317                                 -activeback [cget $w.x$line.l -bg]
  318         button $w.x$line.help -text "Help" -relief raised \
  319                 -command "dohelp .dohelp $helpidx .menu$mnum"
  320         pack $w.x$line.help -side right -fill y
  321         pack $w.x$line.l -side right -fill both -expand on
  322 }
  323 
  324 proc toggle_switch2 {w mnum line text variable} {
  325         frame $w.x$line -relief sunken
  326         radiobutton $w.x$line.y -text "y" -variable $variable -value 1 \
  327                 -relief groove -width 2 -command "update_active"
  328         radiobutton $w.x$line.m -text "-"  -variable $variable -value 2 \
  329                 -relief groove -width 2 -command "update_active"
  330         radiobutton $w.x$line.n -text "n"  -variable $variable -value 0 \
  331                 -relief groove -width 2 -command "update_active"
  332 
  333         option_name $w $mnum $line $text $variable
  334 
  335         pack $w.x$line.n $w.x$line.m $w.x$line.y -side right -fill y
  336 }
  337 
  338 proc toggle_switch3 {w mnum line text variable} {
  339         frame $w.x$line -relief sunken
  340         radiobutton $w.x$line.y -text "y" -variable $variable -value 1 \
  341                 -relief groove -width 2 -command "update_active"
  342         radiobutton $w.x$line.m -text "m"  -variable $variable -value 2 \
  343                 -relief groove -width 2 -command "update_active"
  344         radiobutton $w.x$line.n -text "n"  -variable $variable -value 0 \
  345                 -relief groove -width 2 -command "update_active"
  346 
  347         option_name $w $mnum $line $text $variable
  348 
  349         global CONFIG_MODULES
  350         if {($CONFIG_MODULES == 0)} then {
  351                 $w.x$line.m configure -state disabled
  352         }
  353         pack $w.x$line.n $w.x$line.m $w.x$line.y -side right -fill y
  354 }
  355 
  356 proc bool {w mnum line text variable} {
  357         toggle_switch2 $w $mnum $line $text $variable
  358         $w.x$line.m configure -state disabled
  359         pack $w.x$line -anchor w -fill both -expand on
  360 }
  361 
  362 proc tristate {w mnum line text variable } {
  363         toggle_switch3 $w $mnum $line $text $variable
  364         pack $w.x$line -anchor w -fill both -expand on
  365 }
  366 
  367 proc dep_tristate {w mnum line text variable } {
  368         tristate $w $mnum $line $text $variable
  369 }
  370 
  371 proc dep_bool {w mnum line text variable } {
  372         bool $w $mnum $line $text $variable
  373 }
  374 
  375 proc int { w mnum line text variable } {
  376         frame $w.x$line
  377         entry $w.x$line.x -width 18 -relief sunken -borderwidth 2 \
  378                 -textvariable $variable
  379         option_name $w $mnum $line $text $variable
  380         pack $w.x$line.x -anchor w -side right -fill y
  381         pack $w.x$line -anchor w -fill both -expand on
  382 }
  383 
  384 proc hex { w mnum line text variable } {
  385         int $w $mnum $line $text $variable
  386 }
  387 
  388 proc istring { w mnum line text variable } {
  389         frame $w.x$line
  390         entry $w.x$line.x -width 18 -relief sunken -borderwidth 2 \
  391                 -textvariable $variable
  392         option_name $w $mnum $line $text $variable
  393         pack $w.x$line.x -anchor w -side right -fill y
  394         pack $w.x$line -anchor w -fill both -expand on
  395 }
  396 
  397 proc minimenu { w mnum line text variable helpidx } {
  398         frame $w.x$line
  399         menubutton $w.x$line.x -textvariable $variable -menu \
  400                 $w.x$line.x.menu -relief raised \
  401                 -anchor w
  402         option_name $w $mnum $line $text $helpidx
  403         pack $w.x$line.x -anchor w -side right -fill y
  404         pack $w.x$line -anchor w -fill both -expand on
  405 }
  406 
  407 proc menusplit {w m n} {
  408         if { $n > 2 } then {
  409                 update idletasks
  410                 set menuoptsize [expr [$m yposition 2] - [$m yposition 1]]   
  411                 set maxsize [winfo screenheight $w]
  412                 set splitpoint [expr $maxsize * 4 / 5 / $menuoptsize - 1]
  413                 for {set i [expr $splitpoint + 1]} {$i <= $n} {incr i $splitpoint} {
  414                         $m entryconfigure $i -columnbreak 1
  415                 }
  416         }
  417 }
  418 
  419 proc menutitle {text menu w} {
  420         wm title $w "$text"
  421 }
  422 
  423 proc submenu { w mnum line text subnum } {
  424         frame $w.x$line
  425         button $w.x$line.l -text "" -width 15 -relief groove
  426         $w.x$line.l configure -activefore [cget $w.x$line.l -fg] \
  427                 -activeback [cget $w.x$line.l -bg] -state disabled
  428         button $w.x$line.m -text "$text" -relief raised -anchor w \
  429                 -command "catch {destroy .menu$subnum}; menu$subnum .menu$subnum \"$text\""
  430         pack $w.x$line.l -side left -fill both
  431         pack $w.x$line.m -anchor w -side right -fill both -expand on
  432         pack $w.x$line -anchor w -fill both -expand on
  433 }
  434 
  435 proc comment {w mnum line text } {
  436         frame $w.x$line
  437         button $w.x$line.l -text "" -width 15 -relief groove
  438         $w.x$line.l configure -activefore [cget $w.x$line.l -fg] \
  439                 -activeback [cget $w.x$line.l -bg] -state disabled
  440         button $w.x$line.m -text "$text" -relief groove -anchor w
  441         $w.x$line.m configure -activefore [cget $w.x$line.m -fg] \
  442                 -activeback [cget $w.x$line.m -bg]
  443         pack $w.x$line.l -side left -fill both
  444         pack $w.x$line.m -anchor w -side right -fill both -expand on
  445         pack $w.x$line -anchor w -fill both -expand on
  446 }
  447 
  448 proc dohelp {w var parent}  {
  449         catch {destroy $w}
  450         toplevel $w -class Dialog
  451 
  452         set filefound 0
  453         set found 0
  454         set lineno 0
  455 
  456         if { [file readable Documentation/Configure.help] == 1} then {
  457                 set filefound 1
  458                 # First escape sed regexp special characters in var:
  459                 set var [exec echo "$var" | sed s/\[\]\[\/.^$*\]/\\\\&/g]
  460                 # Now pick out right help text:
  461                 set message [exec sed -n "
  462                         /^$var\[        \]*\$/,\${
  463                                 /^$var\[        \]*\$/c\\
  464 ${var}:\\
  465 
  466                                 /^#/b
  467                                 /^\[^   \]/q
  468                                 s/^  //
  469                                 /<file:\\(\[^>\]*\\)>/s//\\1/g
  470                                 p
  471                         }
  472                         " Documentation/Configure.help]
  473                 set found [expr [string length "$message"] > 0]
  474         }
  475 
  476         frame $w.f1
  477         pack $w.f1 -fill both -expand on
  478 
  479         # Do the OK button
  480         #
  481         set oldFocus [focus]
  482         frame $w.f2
  483         button $w.f2.ok -text "OK" \
  484                 -width 10 -command "destroy $w; catch {focus $oldFocus}"
  485         pack $w.f2.ok -side bottom -pady 6 -anchor n
  486         pack $w.f2 -side bottom -padx 10 -anchor s
  487 
  488         scrollbar $w.f1.vscroll -command "$w.f1.canvas yview"
  489         pack $w.f1.vscroll -side right -fill y
  490 
  491         canvas $w.f1.canvas -relief flat -borderwidth 0 \
  492                 -yscrollcommand "$w.f1.vscroll set"
  493         frame $w.f1.f
  494         pack $w.f1.canvas -side right -fill y -expand on
  495 
  496         if { $found == 0 } then {
  497                 if { $filefound == 0 } then {
  498                 message $w.f1.f.m -width 750 -aspect 300 -relief flat -text \
  499                         "No help available - unable to open file Documentation/Configure.help.  This file should have come with your kernel."
  500                 } else {
  501                 message $w.f1.f.m -width 400 -aspect 300 -relief flat -text \
  502                         "No help available for $var"
  503                 }
  504                 label $w.f1.bm -bitmap error
  505                 wm title $w "RTFM"
  506         } else {
  507                 text $w.f1.f.m -width 73 -relief flat -wrap word
  508                 $w.f1.f.m insert 0.0 $message
  509                 $w.f1.f.m conf -state disabled -height [$w.f1.f.m index end]
  510 
  511                 label $w.f1.bm -bitmap info
  512                 wm title $w "Configuration help" 
  513         }
  514         pack $w.f1.f.m -side left
  515         pack $w.f1.bm $w.f1.f -side left -padx 10
  516 
  517         focus $w
  518         set winx [expr [winfo x $parent]+20]
  519         set winy [expr [winfo y $parent]+20]
  520         wm geometry $w +$winx+$winy
  521         set sizok [expr [winfo reqheight $w.f2.ok] + 12]
  522         set maxy [expr [winfo screenheight .] * 3 / 4]
  523         set canvtotal [winfo reqheight $w.f1.f.m]
  524         if [expr $sizok + $canvtotal < $maxy] {
  525                 set sizy $canvtotal
  526         } else {
  527                 set sizy [expr $maxy - $sizok]
  528         }
  529         $w.f1.canvas configure -height $sizy -width [winfo reqwidth $w.f1.f.m] \
  530                 -scrollregion "0 0 [winfo reqwidth $w.f1.f.m] \
  531                         [winfo reqheight $w.f1.f.m]"
  532         $w.f1.canvas create window 0 0 -anchor nw -window $w.f1.f
  533         update idletasks
  534 
  535         set maxy [winfo screenheight .]
  536         if [expr $sizok + $canvtotal < $maxy] {
  537                 set sizy [expr $sizok + $canvtotal]
  538         } else {
  539                 set sizy $maxy
  540         }
  541         wm maxsize $w [winfo width $w] $sizy
  542 }
  543 
  544 bind all <Alt-s> { catch {exec cp -f .config .config.old}; \
  545                 writeconfig .config include/linux/autoconf.h; wrapup .wrap }
  546 
  547 proc wrapup {w }  {
  548         catch {destroy $w}
  549         toplevel $w -class Dialog
  550 
  551         global CONFIG_MODVERSIONS; vfix CONFIG_MODVERSIONS
  552         if { ([file exists .hdepend] != 1) || ($CONFIG_MODVERSIONS == 1) } then {
  553             message $w.m -width 400 -aspect 300 -relief raised -text \
  554                 "End of Linux kernel configuration.  Check the top-level Makefile for additional configuration.  Next, you must run 'make dep'."
  555         } else {
  556             message $w.m -width 400 -aspect 300 -relief raised -text \
  557                 "End of Linux kernel configuration.  Check the top-level Makefile for additional configuration.  Next, you may 'make bzImage', 'make bzdisk', or 'make bzlilo.'"
  558         }
  559         label $w.bm -bitmap info
  560         pack $w.bm $w.m -pady 10 -side top -padx 10
  561         wm title $w "Kernel build instructions" 
  562 
  563         set oldFocus [focus]
  564         frame $w.f
  565         button $w.f.back -text "OK" \
  566                 -width 10 -command "exit"
  567         pack $w.f.back -side bottom -pady 10 -anchor s
  568         pack $w.f -pady 10 -side top -padx 10 -anchor s
  569         focus $w
  570         bind $w <Return> "exit"
  571         global winx; global winy
  572         set winx [expr [winfo x .]+30]; set winy [expr [winfo y .]+30]
  573         wm geometry $w +$winx+$winy
  574 
  575 }
  576 
  577 proc unregister_active {num} {
  578         global active_menus
  579         set index [lsearch -exact $active_menus $num]
  580         if {$index != -1} then {set active_menus [lreplace $active_menus $index $index]}
  581 }
  582 
  583 proc update_active {} {
  584         global active_menus total_menus
  585         set max 0
  586         if {[llength $active_menus] > 0} then {
  587                 set max [lindex $active_menus end]
  588                 update_define [toplevel_menu [lindex $active_menus 0]] $max 0
  589         }
  590         foreach i $active_menus {
  591                 if {[winfo exists .menu$i] == 0} then {
  592                         unregister_active $i
  593                 } else {
  594                         update_menu$i
  595                 }
  596         }
  597         update_define [expr $max + 1] $total_menus 1
  598         update_mainmenu
  599 }
  600 
  601 proc configure_entry {w option items} {
  602         foreach i $items {
  603                 $w.$i configure -state $option
  604         }
  605 }
  606 
  607 proc validate_int {name val default} {
  608         if {([exec echo $val | sed s/^-//g | tr -d \[:digit:\] ] != "")} then {
  609                 global $name; set $name $default
  610         }
  611 }
  612 
  613 proc validate_hex {name val default} {
  614         if {([exec echo $val | tr -d \[:xdigit:\] ] != "")} then {
  615                 global $name; set $name $default
  616         }
  617 }
  618 
  619 proc update_define {first last allow_update} {
  620         for {set i $first} {$i <= $last} {incr i} {
  621                 update_define_menu$i
  622                 if {$allow_update == 1} then update
  623         }
  624 }
  625 
  626 #
  627 # Next set up the particulars for the top level menu, and define a few
  628 # buttons which we will stick down at the bottom.
  629 #
  630 
  631 frame .f0 
  632 frame .f0.left
  633 frame .f0.middle
  634 frame .f0.right
  635 
  636 set active_menus [list]
  637 set processed_top_level 0

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