This file is indexed.

/usr/bin/expect_multixterm is in expect-dev 5.45-5ubuntu1.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
#!/bin/sh
# -*- tcl -*-
# The next line is executed by /bin/sh, but not tcl \
exec tclsh8.6 "$0" ${1+"$@"}

package require Expect

#
# NAME
#	multixterm - drive multiple xterms separately or together
#
# SYNOPSIS
#	multixterm [-xa "xterm args"]
#		   [-xc "command"]
#		   [-xd "directory"]
#		   [-xf "file"]
#		   [-xn "xterm names"]
#		   [-xv] (enable verbose mode)
#		   [-xh] or [-x?] (help)
#		   [xterm names or user-defined args...]
#
# DESCRIPTION
#	Multixterm creates multiple xterms that can be driven together
#	or separately.
#
#	In its simplest form, multixterm is run with no arguments and
#	commands are interactively entered in the first entry field.
#	Press return (or click the "new xterm" button) to create a new
#	xterm running that command.
#
#	Keystrokes in the "stdin window" are redirected to all xterms
#	started by multixterm.  xterms may be driven separately simply
#	by focusing on them.
#
#	The stdin window must have the focus for keystrokes to be sent
#	to the xterms.  When it has the focus, the color changes to
#	aquamarine.  As characters are entered, the color changes to
#	green for a second.  This provides feedback since characters
#	are not echoed in the stdin window.
#
#	Typing in the stdin window while holding down the alt or meta
#	keys sends an escape character before the typed characters.
#	This provides support for programs such as emacs.
#
# ARGUMENTS
#	The optional -xa argument indicates arguments to pass to
#	xterm.
#
#	The optional -xc argument indicates a command to be run in
#	each named xterm (see -xn).  With no -xc argument, the command
#	is the current shell.
#
#	The optional -xd argument indicates a directory to search for
#	files that will appear in the Files menu.  By default, the
#	directory is: ~/lib/multixterm
#
#	The optional -xf argument indicates a file to be read at
#	startup.  See FILES below for more info.
#
#	The optional -xn argument indicates a name for each xterm.
#	This name will also be substituted for any %n in the command
#	argument (see -xc).
#
#	The optional -xv flag puts multixterm into a verbose mode
#	where it will describe some of the things it is doing
#	internally.  The verbose output is not intended to be
#	understandable to anyone but the author.
#
#	Less common options may be changed by the startup file (see
#	FILES below).
#
#	All the usual X and wish flags are supported (i.e., -display,
#	-name).  There are so many of them that to avoid colliding and
#	make them easy to remember, all the multixterm flags begin
#	with -x.
#
#	If any arguments do not match the flags above, the remainder
#	of the command line is made available for user processing.  By
#	default, the remainder is used as a list of xterm names in the
#	style of -xn. The default behavior may be changed using the
#	.multixtermrc file (see DOT FILE below).
#
# EXAMPLE COMMAND LINE ARGUMENTS
#	The following command line starts up two xterms using ssh to
#	the hosts bud and dexter.
#
#		multixterm -xc "ssh %n" bud dexter
#
# FILES
#	Command files may be used to drive or initialize multixterm.
#	The File menu may be used to invoke other files.  If files
#	exist in the command file directory (see -xd above), they will
#	appear in the File menu.  Files may also be loaded by using
#	File->Open.  Any filename is acceptable but the File->Open
#	browser defaults to files with a .mxt suffix.
#
#	Files are written in Tcl and may change any variables or
#	invoke any procedures.  The primary variables of interest are
#	'xtermCmd' which identifies the command (see -xc) and
#	'xtermNames' which is a list of names (see -xn).  The
#	procedure xtermStartAll, starts xterms for each name in the
#	list.  Other variables and procedures may be discovered by
#	examining multixterm itself.
#
# EXAMPLE FILE
#	The following file does the same thing as the earlier example
#	command line:
#
#		# start two xterms connected to bud and dexter
#		set xtermCmd "ssh %n"
#		set xtermNames {bud dexter}
#		xtermStartAll
#
# DOT FILE
#	At startup, multixterm reads ~/.multixtermrc if present.  This
#	is similar to the command files (see FILES above) except that
#	.multixtermrc may not call xtermStartAll.  Instead it is
#	called implicitly, similar to the way that it is implicit in
#	the command line use of -xn.
#
#	The following example .multixtermrc file makes every xterm run
#	ssh to the hosts named on the command line.
#
#		set xtermCmd "ssh %n"
#
#	Then multixterm could be called simply:
#
#		multixterm bud dexter
#
#	If any command-line argument does not match a multixterm flag,
#	the remainder of the command line is made available to
#	.multixtermrc in the argv variable.  If argv is non-empty when
#	.multixtermrc returns, it is assigned to xtermNames unless
#	xtermNames is non-empty in which case, the content of argv is
#	ignored.
#
#	Commands from .multixtermrc are evaluated early in the
#	initialization of multixterm.  Anything that must be done late
#	in the initialization (such as adding additional bindings to
#	the user interface) may be done by putting the commands inside
#	a procedure called "initLate".
#
# MENUS
#	Except as otherwise noted, the menus are self-explanatory.
#	Some of the menus have dashed lines as the first entry.
#	Clicking on the dashed lines will "tear off" the menus.
#
# USAGE SUGGESTION - ALIASES AND COMMAND FILES
#	Aliases may be used to store lengthy command-line invocations.
#	Command files can be also be used to store such invocations
#	as well as providing a convenient way to share configurations.
#
#	Tcl is a general-purpose language.  Thus multixterm command
#	files can be extremely flexible, such as loading hostnames
#	from other programs or files that may change from day-to-day.
#	In addition, command files can be used for other purposes.
#	For example, command files may be used to prepared common
#	canned interaction sequences.  For example, the command to
#	send the same string to all xterms is:
#
#	    xtermSend "a particularly long string"
#
#	The File menu (torn-off) makes canned sequences particularly
#	convenient.  Interactions could also be bound to a mouse
#	button, keystroke, or added to a menu via the .multixtermrc
#	file.
#
# USAGE SUGGESTION - HANDLING MANY XTERMS BY TILING
#	The following .multixtermrc causes tiny xterms to tile across
#	and down the screen.  (You may have to adjust the parameters
#	for your screen.)  This can be very helpful when dealing with
#	large numbers of xterms.
#
#	    set yPos 0
#	    set xPos 0
#
#	    trace variable xtermArgs r traceArgs
#
#	    proc traceArgs {args} {
#	        global xPos yPos
#	        set ::xtermArgs "-geometry 80x12+$xPos+$yPos -font 6x10"
#	        if {$xPos} {
#		    set xPos 0
#		    incr yPos 145
#		    if {$yPos > 800} {set yPos 0}
#	        } else {
#		    set xPos 500
#	        }
#	    }
#
#	The xtermArgs variable in the code above is the variable
#	corresponding to the -xa argument.
#
#	xterms can be also be created directly.  The following command
#	file creates three xterms overlapped horizontally:
#
#	    set xPos 0
#
#	    foreach name {bud dexter hotdog} {
#	        set ::xtermArgs "-geometry 80x12+$xPos+0 -font 6x10"
#	        set ::xtermNames $name
#	        xtermStartAll
#	        incr xPos 300
#	    }
#
# USAGE SUGGESTION - SELECTING HOSTS BY NICKNAME
#	The following .multixtermrc shows an example of changing the
#	default handling of the arguments from hostnames to a filename
#	containing hostnames:
#
#		set xtermNames [exec cat $argv]
#
#	The following is a variation, retrieving the host names from
#	the yp database:
#
#		set xtermNames [exec ypcat $argv]
#
#	The following hardcodes two sets of hosts, so that you can
#	call multixterm with either "cluster1" or "cluster2":
#
#		switch $argv {
#		    cluster1 {
#			set xtermNames "bud dexter"
#		    }
#		    cluster2 {
#			set xtermNames "frank hotdog weiner"
#		    }
#		}
#
# COMPARE/CONTRAST
#	It is worth comparing multixterm to xkibitz.  Multixterm
#	connects a separate process to each xterm.  xkibitz connects
#	the same process to each xterm.
#
# LIMITATIONS
#	Multixterm provides no way to remotely control scrollbars,
#	resize, and most other window system related functions.
#
#	Multixterm can only control new xterms that multixterm itself
#	has started.
#
#	As a convenience, the File menu shows a limited number of
#	files.  To show all the files, use File->Open.
#
# FILES
#	$DOTDIR/.multixtermrc   initial command file
#	~/.multixtermrc         fallback command file
#	~/lib/multixterm/       default command file directory
#
# BUGS
#	If multixterm is killed using an uncatchable kill, the xterms
#	are not killed.  This appears to be a bug in xterm itself.
#
#	Send/expect sequences can be done in multixterm command files.
#	However, due to the richness of the possibilities, to document
#	it properly would take more time than the author has at present.
#
# REQUIREMENTS
#	Requires Expect 5.36.0 or later.
#	Requires Tk 8.3.3 or later.
#
# VERSION
#!	$::versionString
#	The latest version of multixterm is available from
#	http://expect.nist.gov/example/multixterm .  If your version of Expect
#	and Tk are too old (see REQUIREMENTS above), download a new version of
#	Expect from http://expect.nist.gov
#
# DATE
#!	$::versionDate
#
# AUTHOR
#	Don Libes <don@libes.com>
#
# LICENSE
#	Multixterm is in the public domain; however the author would
#	appreciate acknowledgement if multixterm or parts of it or ideas from
#	it are used.

######################################################################
# user-settable things - override them in the ~/.multixtermrc file
#			 or via command-line options
######################################################################

set palette       #d8d8ff   ;# lavender
set colorTyping   green
set colorFocusIn  aquamarine

set xtermNames    {}
set xtermCmd      $env(SHELL)
set xtermArgs     ""
set cmdDir	  ~/lib/multixterm
set inputLabel    "stdin window"

set fileMenuMax   30     ;# max number of files shown in File menu
set tearoffMenuMin 2     ;# min number of files needed to enable the File
			 ;# menu to be torn off

proc initLate {} {}      ;# anything that must be done late in initialization
			 ;# such as adding/modifying bindings, may be done by
			 ;# redefining this

######################################################################
# end of user-settable things
######################################################################

######################################################################
# sanity checking
######################################################################

set versionString 1.8
set versionDate "2004/06/29"

package require Tcl
catch {package require Tk} ;# early versions of Tk had no package
package require Expect

proc exit1 {msg} {
    puts "multixterm: $msg"
    exit 1
}

exp_version -exit 5.36

proc tkBad {} {
    exit1 "requires Tk 8.3.3 or later but you are using	Tk $::tk_patchLevel."
}

if {$tk_version < 8.3} {
    tkBad
} elseif {$tk_version == 8.3} {
    if {[lindex [split $tk_patchLevel .] 2] < 3} tkBad
}

######################################################################
# process args - has to be done first to get things like -xv working ASAP
######################################################################

# set up verbose mechanism early

set verbose 0
proc verbose {msg} {
    if {$::verbose} {
	if {[info level] > 1} {
	    set proc [lindex [info level -1] 0]
	} else {
	    set proc main
	}
	puts "$proc: $msg"
    }
}

# read a single argument from the command line
proc arg_read1 {var args} {
    if {0 == [llength $args]} {
	set argname -$var
    } else {
	set argname $args
    }

    upvar argv argv
    upvar $var v

    verbose "$argname"
    if {[llength $argv] < 2} {
	exit1 "$argname requires an argument"
    }

    set v [lindex $argv 1]
    verbose "set $var $v"
    set argv [lrange $argv 2 end]
}

proc xtermUsage {{msg {}}} {
    if {![string equal $msg ""]} {
	puts "multixtermrc: $msg"
    }
    puts {usage: multixterm [flags] ... where flags are:
	[-xa "xterm args"]
	[-xc "command"]
	[-xd "directory"]
	[-xf "file"]
	[-xn "xterm names"]
	[-xv] (enable verbose mode)
	[-xh] or [-x?] (help)
	[xterm names or user-defined args...]}
    exit
}

while {[llength $argv]} {
    set flag [lindex $argv 0]
    switch -- $flag -x? - -xh {
	xtermUsage
    } -xc {
	arg_read1 xtermCmd -xc
    } -xn {
	arg_read1 xtermNames -xn
    } -xa {
	arg_read1 xtermArgs -xa
    } -xf {
	arg_read1 cmdFile -xf
	if {![file exists $cmdFile]} {
	    exit1 "can't read $cmdFile"
	}
    } -xd {
	arg_read1 cmdDir -xd
	if {![file exists $cmdDir]} {
	    exit1 "can't read $cmdDir"
	}
    } -xv {
	set argv [lrange $argv 1 end]
	set verbose 1
	puts "main: verbose on"
    } default {
	verbose "remaining args: $argv"
	break	;# let user handle remaining args later
    }
}

######################################################################
# determine and load rc file -  has to be done now so that widgets
# 	can be affected
######################################################################

# if user has no $DOTDIR, fall back to home directory
if {![info exists env(DOTDIR)]} {
    set env(DOTDIR) ~
}
# catch bogus DOTDIR, otherwise glob will lose the bogus directory
# and it won't appear in the error msg
if {[catch {glob $env(DOTDIR)} dotdir]} {
    exit1 "$env(DOTDIR)/.multixtermrc can't be found because $env(DOTDIR) doesn't exist or can't be read"
} 
set rcFile $dotdir/.multixtermrc

set fileTypes {
    {{Multixterm Files} *.mxt}
    {{All Files} *}
}

proc openFile {{fn {}}} {
    verbose "opening $fn"
    if {[string equal $fn ""]} {
	set fn [tk_getOpenFile \
		    -initialdir $::cmdDir \
		    -filetypes $::fileTypes \
		    -title "multixterm file"]
	if {[string match $fn ""]} return
    }
    uplevel #0 source [list $fn]
    verbose "xtermNames = \"$::xtermNames\""
    verbose "xtermCmd = $::xtermCmd"
}

if {[file exists $rcFile]} {
    openFile $rcFile
} else {
    verbose "$rcFile: not found"
}

if {![string equal "" $argv]} {
    if {[string equal $xtermNames ""]} {
	set xtermNames $argv
    }
}

######################################################################
# Describe and initialize some important globals
######################################################################

# ::activeList and ::activeArray both track which xterms to send
# (common) keystrokes to.  Each element in activeArray is connected to
# the active menu.  The list version is just a convenience making the
# send function easier/faster.

set activeList {}

# ::names is an array of xterm names indexed by process spawn ids.

set names(x) ""
unset names(x)

# ::xtermSid is an array of xterm spawn ids indexed by process spawn ids.
# ::xtermPid is an array of xterm pids indexed by process spawn id.

######################################################################
# create an xterm and establish connections
######################################################################

proc xtermStart {cmd name} {
    verbose "starting new xterm running $cmd with name $name"

    ######################################################################
    # create pty for xterm
    ######################################################################
    set pid [spawn -noecho -pty]
    verbose "spawn -pty: pid = $pid, spawn_id = $spawn_id"
    set sidXterm $spawn_id
    stty raw -echo < $spawn_out(slave,name)

    regexp ".*(.)(.)" $spawn_out(slave,name) dummy c1 c2
    if {[string compare $c1 "/"] == 0} {
	set c1 0
    }

    ######################################################################
    # prepare to start xterm by making sure xterm name is unique
    # X doesn't care but active menu won't make sense unless names are unique
    ######################################################################
    set unique 1
    foreach oldName [array names ::names] {
	if {[string match "$name" $::names($oldName)]} {
	    set unique 0
	}
    }
    verbose "uniqueness of $name: $unique"

    set safe [safe $name]

    # if not unique, look at the numerical suffixes of all matching
    # names, find the biggest and increment it
    if {!$unique} {
	set suffix 2
	foreach oldName [array names ::names] {
	    verbose "regexp ^[set safe](\[0-9]+)$ $::names($oldName) X num"
	    if {[regexp "^[set safe](\[0-9]+)$" $::names($oldName) X num]} {
		verbose "matched, checking suffix"
		if {$num >= $suffix} {
		    set suffix [expr $num+1]
		    verbose "new suffix: $suffix"
		}
	    }
	}
	append name $suffix
	verbose "new name: $name"
    }

    ######################################################################
    # start new xterm
    ######################################################################
    set xtermpid [eval exec xterm -name [list $name] -S$c1$c2$spawn_out(slave,fd) $::xtermArgs &]
    verbose "xterm: pid = $xtermpid"
    close -slave

    # xterm first sends back window id, save in environment so it can be
    # passed on to the new process
    log_user 0
    expect {
	eof {wait;return}
	-re (.*)\n {
	    # convert hex to decimal
	    # note quotes must be used here to avoid diagnostic from expr
	    set ::env(WINDOWID) [expr "0x$expect_out(1,string)"]
	}
    }

    ######################################################################
    # start new process
    ######################################################################
    set pid [eval spawn -noecho $cmd]
    verbose "$cmd: pid = $pid, spawn_id = $spawn_id"
    set sidCmd $spawn_id
    lappend ::activeList $sidCmd
    set ::activeArray($sidCmd) 1

    ######################################################################
    # link everything back to spawn id of new process
    ######################################################################
    set ::xtermSid($sidCmd) $sidXterm
    set ::names($sidCmd)    $name
    set ::xtermPid($sidCmd) $xtermpid

    ######################################################################
    # connect proc output to xterm output
    # connect xterm input to proc input
    ######################################################################
    expect_background {
	-i $sidCmd
	-re ".+" [list sendTo $sidXterm]
	eof [list xtermKill $sidCmd]
	-i $sidXterm
	-re ".+" [list sendTo $sidCmd]
	eof [list xtermKill $sidCmd]
    }

    .m.e entryconfig Active -state normal
    .m.e.active add checkbutton -label $name -variable activeArray($sidCmd) \
	-command [list xtermActiveUpdate $sidCmd]
    set ::activeArray($sidCmd) 1
}

proc xtermActiveUpdate {sid} {
    if {$::activeArray($sid)} {
	verbose "activating $sid"
    } else {
	verbose "deactivating $sid"
    }
    activeListUpdate
}

proc activeListUpdate {} {
    set ::activeList {}
    foreach n [array names ::activeArray] {
	if {$::activeArray($n)} {
	    lappend ::activeList $n
	}
    }
}

# make a string safe to go through regexp
proc safe {s} {
    string map {{[} {\[} {*} {\*} {+} {\+} {^} {\^} {$} {\\$}} $s
}

# utility to map xterm name to spawn id
# multixterm doesn't use this but a user might want to
proc xtermGet {name} {
    foreach sid [array names ::names] {
	if {[string equal $name $::names($sid)]} {
	    return $sid
	}
    }
    error "no such term with name: $name"
}

# utility to activate an xterm
# multixterm doesn't use this but a user might want to
proc xtermActivate {sid} {
    set ::activeArray($sid) 1
    xtermActiveUpdate $sid
}

# utility to deactivate an xterm
# multixterm doesn't use this but a user might want to
proc xtermDeactivate {sid} {
    set ::activeArray($sid) 0
    xtermActiveUpdate $sid
}

# utility to do an explicit Expect
# multixterm doesn't use this but a user might want to
proc xtermExpect {args} {
    # check if explicit spawn_id in args
    for {set i 0} {$i < [llength $args]} {incr i} {
	switch -- [lindex $args $i] "-i" {
	    set sidCmd [lindex $args [incr i]]
	    break
	}
    }

    if {![info exists sidCmd]} {
	# nothing explicit, so get it from the environment

	upvar spawn_id spawn_id

	# mimic expect's normal behavior in obtaining spawn_id
	if {[info exists spawn_id]} {
	    set sidCmd $spawn_id
	} else {
	    set sidCmd $::spawn_id
	}
    }

    # turn off bg expect, do fg expect, then re-enable bg expect

    expect_background -i $sidCmd	;# disable bg expect
    eval expect $args			;# fg expect
					;# reenable bg expect
    expect_background {
	-i $sidCmd
	-re ".+" [list sendTo $::xtermSid($sidCmd)]
	eof [list xtermKill $sidCmd]
    }
}

######################################################################
# connect main window keystrokes to all xterms
######################################################################
proc xtermSend {A} {
    if {[info exists ::afterId]} {
	after cancel $::afterId
    }
    .input config -bg $::colorTyping
    set ::afterId [after 1000 {.input config -bg $colorCurrent}]

    exp_send -raw -i $::activeList -- $A
}

proc sendTo {to} {
    exp_send -raw -i $to -- $::expect_out(buffer)
}

# catch the case where there's no selection
proc xtermPaste {} {catch {xtermSend [selection get]}}

######################################################################
# clean up an individual process death or xterm death
######################################################################
proc xtermKill {s} {
    verbose "killing xterm $s"

    if {![info exists ::xtermPid($s)]} {
	verbose "too late, already dead"
	return
    }

    catch {exec /bin/kill -9 $::xtermPid($s)}
    unset ::xtermPid($s)

    # remove sid from activeList
    verbose "removing $s from active array"
    catch {unset ::activeArray($s)}
    activeListUpdate

    verbose "removing from background handler $s"
    catch {expect_background -i $s}
    verbose "removing from background handler $::xtermSid($s)"
    catch {expect_background -i $::xtermSid($s)}
    verbose "closing proc"
    catch {close -i $s}
    verbose "closing xterm"
    catch {close -i $::xtermSid($s)}
    verbose "waiting on proc"
    wait -i $s
    wait -i $::xtermSid($s)
    verbose "done waiting"
    unset ::xtermSid($s)

    # remove from active menu
    verbose "deleting active menu entry $::names($s)"

    # figure out which it is
    # avoid using name as an index since we haven't gone to any pains to
    # make it safely interpreted by index-pattern code.  instead step
    # through, doing the comparison ourselves
    set last [.m.e.active index last]
    # skip over tearoff
    for {set i 1} {$i <= $last} {incr i} {
	if {![catch {.m.e.active entrycget $i -label} label]} {
	    if {[string equal $label $::names($s)]} break
	}
    }
    .m.e.active delete $i
    unset ::names($s)

    # if none left, disable menu
    # this leaves tearoff clone but that seems reasonable
    if {0 == [llength [array names ::xtermSid]]} {
	.m.e entryconfig Active -state disable
    }
}

######################################################################
# create windows
######################################################################
tk_setPalette $palette

menu .m -tearoff 0
.m add cascade -menu .m.f    -label "File" -underline 0
.m add cascade -menu .m.e    -label "Edit" -underline 0
.m add cascade -menu .m.help -label "Help" -underline 0
set files [glob -nocomplain $cmdDir/*]
set filesLength [llength $files]
if {$filesLength >= $tearoffMenuMin} {
    set filesTearoff 1
} else {
    set filesTearoff 0
}
menu .m.f    -tearoff $filesTearoff -title "multixterm files"
menu .m.e    -tearoff 0
menu .m.help -tearoff 0
.m.f    add command -label Open -command openFile -underline 0

if {$filesLength} {
    .m.f add separator
    set files [lsort $files]
    set files [lrange $files 0 $fileMenuMax]
    foreach f $files {
	.m.f add command -label $f -command [list openFile $f]
    }
    .m.f add separator
}

.m.f    add command -label "Exit"     -command exit       -underline 0
.m.e    add command -label "Paste"    -command xtermPaste -underline 0
.m.e	add cascade -label "Active"   -menu .m.e.active   -underline 0
.m.help add command -label "About"    -command about      -underline 0
.m.help add command -label "Man Page" -command help       -underline 0
. config -m .m

menu .m.e.active -tearoff 1 -title "multixterm active"
.m.e entryconfig Active -state disabled
# disable the Active menu simply because it looks goofy seeing an empty menu
# for consistency, though, it should be enabled

entry  .input -textvar inputLabel -justify center -state disabled
entry  .cmd   -textvar xtermCmd
button .exec  -text "new xterm" -command {xtermStart $xtermCmd $xtermCmd}

grid .input -sticky ewns
grid .cmd   -sticky ew
grid .exec  -sticky ew -ipadx 3 -ipady 3

grid columnconfigure . 0 -weight 1
grid    rowconfigure . 0 -weight 1  ;# let input window only expand

bind .cmd   <Return>        {xtermStart $xtermCmd $xtermCmd}

# send all keypresses to xterm 
bind .input <KeyPress>         {xtermSend %A ; break}
bind .input <Alt-KeyPress>     {xtermSend \033%A; break}
bind .input <Meta-KeyPress>    {xtermSend \033%A; break}
bind .input <<Paste>>          {xtermPaste ; break}
bind .input <<PasteSelection>> {xtermPaste ; break}

# arrow keys - note that if they've been rebound through .Xdefaults
# you'll have to change these definitions.
bind .input <Up>    {xtermSend \033OA; break}
bind .input <Down>  {xtermSend \033OB; break}
bind .input <Right> {xtermSend \033OC; break}
bind .input <Left>  {xtermSend \033OD; break}
# Strange: od -c reports these as \033[A et al but when keypad mode
# is initialized, they send \033OA et al.  Presuming most people
# want keypad mode, I'll go with the O versions.  Perhaps the other
# version is just a Sun-ism anyway.

set colorCurrent [.input cget -bg]
set colorFocusOut $colorCurrent

# change color to show focus
bind .input <FocusOut> colorFocusOut
bind .input <FocusIn>  colorFocusIn
proc colorFocusIn  {} {.input config -bg [set ::colorCurrent $::colorFocusIn]}
proc colorFocusOut {} {.input config -bg [set ::colorCurrent $::colorFocusOut]}

# convert normal mouse events to focusIn
bind .input <1>       {focus .input; break}
bind .input <Shift-1> {focus .input; break}

# ignore all other mouse events that might make selection visible
bind .input <Double-1>  break
bind .input <Triple-1>  break
bind .input <B1-Motion> break
bind .input <B2-Motion> break

set scriptName [info script] ;# must get while it's active

proc about {} {
    set w .about
    if {[winfo exists $w]} {
	wm deiconify $w
	raise $w
	return
    }
    toplevel     $w
    wm title     $w "about multixterm"
    wm iconname  $w "about multixterm"
    wm resizable $w 0 0

    button $w.b -text Dismiss -command [list wm withdraw $w]

    label $w.title -text "multixterm" -font "Times 16" -borderwidth 10 -fg red
    label $w.version -text "Version $::versionString, Released $::versionDate"
    label $w.author -text "Written by Don Libes <don@libes.com>"
    label $w.using -text "Using Expect [exp_version],\
                                Tcl $::tcl_patchLevel,\
                                Tk $::tk_patchLevel"
    grid $w.title
    grid $w.version
    grid $w.author
    grid $w.using
    grid $w.b -sticky ew
}

proc help {} {
    if {[winfo exists .help]} {
	wm deiconify .help
	raise .help
	return
    }
    toplevel    .help
    wm title    .help "multixterm help"
    wm iconname .help "multixterm help"

    scrollbar .help.sb -command {.help.text yview}
    text .help.text -width 74 -height 30 -yscroll {.help.sb set} -wrap word

    button .help.ok -text Dismiss -command {destroy .help} -relief raised
    bind .help <Return> {destroy .help;break}
    grid .help.sb   -row 0 -column 0     -sticky ns
    grid .help.text -row 0 -column 1     -sticky nsew
    grid .help.ok   -row 1 -columnspan 2 -sticky ew -ipadx 3 -ipady 3

    # let text box only expand
    grid rowconfigure    .help 0 -weight 1
    grid columnconfigure .help 1 -weight 1

    set script [auto_execok $::scriptName]
    if {[llength $script] == 0} {
	set script /depot/tcl/bin/multixterm     ;# fallback
    }
    if {[catch {open $script} fid]} {
	.help.text insert end "Could not open help file: $script"
    } else {
	# skip to the beginning of the actual help (starts with "NAME")
	while {-1 != [gets $fid buf]} {
	    if {1 == [regexp "NAME" $buf]} {
		.help.text insert end "\n NAME\n"
		break
	    }
	}
	
	while {-1 != [gets $fid buf]} {
	    if {0 == [regexp "^#(.?)(.*)" $buf X key buf]} break
	    if {$key == "!"} {
		set buf [subst -nocommands $buf]
		set key " "
	    }
	    .help.text insert end $key$buf\n
	}
    }

    # support scrolling beyond Tk's built-in Next/Previous
    foreach w {"" .sb .text .ok} {
	set W .help$w
	bind $W <space> 	{scrollPage  1}  ;#more
	bind $W <Delete> 	{scrollPage -1}  ;#more
	bind $W <BackSpace> 	{scrollPage -1}  ;#more
	bind $W <Control-v>	{scrollPage  1}  ;#emacs
	bind $W <Meta-v>	{scrollPage -1}  ;#emacs
	bind $W <Control-f>	{scrollPage  1}  ;#vi
	bind $W <Control-b>	{scrollPage -1}  ;#vi
	bind $W <F35>		{scrollPage  1}  ;#sun
	bind $W <F29>		{scrollPage -1}  ;#sun
	bind $W <Down>	        {scrollLine  1}
	bind $W <Up>		{scrollLine -1}
    }
}

proc scrollPage {dir} {
    tkScrollByPages .help.sb v $dir
    return -code break
}

proc scrollLine {dir} {
    tkScrollByUnits .help.sb v $dir
    return -code break
}

######################################################################
# exit handling
######################################################################

# xtermKillAll is not intended to be user-callable.  It just kills
# the processes and that's it. A user-callable version would update
# the data structures, close the channels, etc.

proc xtermKillAll {} {
    foreach sid [array names ::xtermPid] {
	exec /bin/kill -9 $::xtermPid($sid)
    }
}

rename exit _exit
proc exit {{x 0}} {xtermKillAll;_exit $x}

wm protocol . WM_DELETE_WINDOW exit
trap exit SIGINT

######################################################################
# start any xterms requested
######################################################################
proc xtermStartAll {} {
    verbose "xtermNames = \"$::xtermNames\""
    foreach n $::xtermNames {
	regsub -all "%n" $::xtermCmd $n cmdOut
	xtermStart $cmdOut $n
    }
    set ::xtermNames {}
}

initLate

# now that xtermStartAll and its accompanying support has been set up
# run it to start anything defined by rc file or command-line args.

xtermStartAll     ;# If nothing has been requested, this is a no-op.

# finally do any explicit command file
if {[info exists cmdFile]} {
    openFile $cmdFile
}